diff --git a/backend/src/main/java/net/beetechgroup/beetask/frameworks/config/TaskUseCaseConfig.java b/backend/src/main/java/net/beetechgroup/beetask/frameworks/config/TaskUseCaseConfig.java
index df99e08..1eb1422 100644
--- a/backend/src/main/java/net/beetechgroup/beetask/frameworks/config/TaskUseCaseConfig.java
+++ b/backend/src/main/java/net/beetechgroup/beetask/frameworks/config/TaskUseCaseConfig.java
@@ -35,8 +35,8 @@ public class TaskUseCaseConfig {
     }
 
     @Produces
-    public ListAllTasksUseCase listAllTasksUseCase(TaskRepository taskRepository) {
-        return new ListAllTasksUseCase(taskRepository);
+    public ListAllTasksUseCase listAllTasksUseCase(TaskRepository taskRepository, UserRepository userRepository) {
+        return new ListAllTasksUseCase(taskRepository, userRepository);
     }
 
     @Produces
diff --git a/backend/src/main/java/net/beetechgroup/beetask/frameworks/persistence/repository/TaskRepositoryImpl.java b/backend/src/main/java/net/beetechgroup/beetask/frameworks/persistence/repository/TaskRepositoryImpl.java
index a108c03..d9c2daf 100644
--- a/backend/src/main/java/net/beetechgroup/beetask/frameworks/persistence/repository/TaskRepositoryImpl.java
+++ b/backend/src/main/java/net/beetechgroup/beetask/frameworks/persistence/repository/TaskRepositoryImpl.java
@@ -52,6 +52,51 @@ public class TaskRepositoryImpl implements TaskRepository, PanacheRepository<Tas
         return tasks;
     }
 
+    @Override
+    public List<Task> findAccessibleTasksFiltered(String email, Long organizationId, String text, List<Long> projectIds,
+                                                  List<TaskStatus> statuses, List<Long> categoryIds, List<Long> userIds) {
+        StringBuilder query = new StringBuilder(
+                "select distinct t from TaskEntity t join t.project p left join p.users pu left join t.user tu " +
+                        "where p.organization.id = ?1 and (pu.email = ?2 or tu.email = ?2)"
+        );
+        List<Object> params = new ArrayList<>();
+        params.add(organizationId);
+        params.add(email);
+
+        int idx = 3;
+        if (Objects.nonNull(text) && !text.isBlank()) {
+            query.append(" and (lower(t.title) like ?").append(idx).append(" or lower(t.description) like ?").append(idx + 1).append(")");
+            String pattern = "%" + text.toLowerCase() + "%";
+            params.add(pattern);
+            params.add(pattern);
+            idx += 2;
+        }
+        if (Objects.nonNull(projectIds) && !projectIds.isEmpty()) {
+            query.append(" and p.id in ?").append(idx);
+            params.add(projectIds);
+            idx++;
+        }
+        if (Objects.nonNull(statuses) && !statuses.isEmpty()) {
+            query.append(" and t.status in ?").append(idx);
+            params.add(statuses);
+            idx++;
+        }
+        if (Objects.nonNull(categoryIds) && !categoryIds.isEmpty()) {
+            query.append(" and t.category.id in ?").append(idx);
+            params.add(categoryIds);
+            idx++;
+        }
+        if (Objects.nonNull(userIds) && !userIds.isEmpty()) {
+            query.append(" and tu.id in ?").append(idx);
+            params.add(userIds);
+        }
+
+        List<Task> tasks = find(query.toString(), params.toArray()).list().stream().map(TaskEntityMapper::toDomain).toList();
+        LOGGER.infof("Loaded %d accessible tasks for user %s in organization %d with filters (text=%s, projectIds=%s, statuses=%s, categoryIds=%s, userIds=%s)",
+                tasks.size(), email, organizationId, text, projectIds, statuses, categoryIds, userIds);
+        return tasks;
+    }
+
     @Override
     public List<Task> findTasksByUserFiltered(String email, String text, List<Long> projectIds,
                                               List<TaskStatus> statuses, List<Long> categoryIds) {
diff --git a/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/CreateTaskResponse.java b/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/CreateTaskResponse.java
index 99a6227..64573a5 100644
--- a/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/CreateTaskResponse.java
+++ b/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/CreateTaskResponse.java
@@ -12,11 +12,13 @@ public record CreateTaskResponse(
                 TaskStatus status,
                 ProjectResponse project,
                 CategoryResponse category,
+                UserResponse user,
                 LocalDateTime finishedAt,
                 List<TaskHistoryItemResponse> history) {
 
     public record ProjectResponse(Long id, String name) {}
     public record CategoryResponse(Long id, String name, String color, String icon) {}
+    public record UserResponse(Long id, String name, String email, String photo) {}
 }
 
 record TaskHistoryItemResponse(
diff --git a/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/ListTasksRequest.java b/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/ListTasksRequest.java
new file mode 100644
index 0000000..c078e7a
--- /dev/null
+++ b/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/ListTasksRequest.java
@@ -0,0 +1,27 @@
+package net.beetechgroup.beetask.interfaceadapters.controllers.task;
+
+import java.util.List;
+
+import jakarta.ws.rs.QueryParam;
+import net.beetechgroup.beetask.entities.task.TaskStatus;
+
+public class ListTasksRequest {
+
+    @QueryParam("organizationId")
+    public Long organizationId;
+
+    @QueryParam("text")
+    public String text;
+
+    @QueryParam("projectId")
+    public List<Long> projectIds;
+
+    @QueryParam("status")
+    public List<TaskStatus> statuses;
+
+    @QueryParam("categoryId")
+    public List<Long> categoryIds;
+
+    @QueryParam("userId")
+    public List<Long> userIds;
+}
diff --git a/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/TaskController.java b/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/TaskController.java
index 3b11b84..9fe7046 100644
--- a/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/TaskController.java
+++ b/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/TaskController.java
@@ -117,8 +117,9 @@ public class TaskController {
     @Operation(summary = "Stop a task", description = "Stops a task in the system")
     @APIResponse(responseCode = "200", description = "Task stopped successfully")
     public CreateTaskResponse stopTask(@PathParam("id") Long id) {
-        LOGGER.infof("Stop requested for task %d", id);
-        CreateTaskOutput output = stopTaskUseCase.execute(TaskControllerMapper.toStopTaskInput(id));
+        String email = securityIdentity.getPrincipal().getName();
+        LOGGER.infof("User %s requested stop for task %d", email, id);
+        CreateTaskOutput output = stopTaskUseCase.execute(TaskControllerMapper.toStopTaskInput(id, email));
         LOGGER.infof("Task %d stopped successfully", id);
         return TaskControllerMapper.toCreateTaskResponse(output);
     }
@@ -137,9 +138,11 @@ public class TaskController {
     @GET
     @Operation(summary = "List all tasks", description = "Lists all tasks in the system")
     @APIResponse(responseCode = "200", description = "Tasks listed successfully")
-    public List<CreateTaskResponse> listTasks() {
-        List<CreateTaskResponse> tasks = listAllTasksUseCase.execute().stream().map(TaskControllerMapper::toCreateTaskResponse).toList();
-        LOGGER.infof("Listed %d tasks", tasks.size());
+    public List<CreateTaskResponse> listTasks(@BeanParam ListTasksRequest request) {
+        String email = securityIdentity.getPrincipal().getName();
+        List<CreateTaskResponse> tasks = listAllTasksUseCase.execute(TaskControllerMapper.toListTasksInput(request, email))
+                .stream().map(TaskControllerMapper::toCreateTaskResponse).toList();
+        LOGGER.infof("Listed %d accessible tasks for user %s", tasks.size(), email);
         return tasks;
     }
 
diff --git a/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/TaskControllerMapper.java b/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/TaskControllerMapper.java
index 5eb4650..f55c668 100644
--- a/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/TaskControllerMapper.java
+++ b/backend/src/main/java/net/beetechgroup/beetask/interfaceadapters/controllers/task/TaskControllerMapper.java
@@ -3,6 +3,7 @@ package net.beetechgroup.beetask.interfaceadapters.controllers.task;
 import java.util.Objects;
 import net.beetechgroup.beetask.usecase.task.create.CreateTaskInput;
 import net.beetechgroup.beetask.usecase.task.create.CreateTaskOutput;
+import net.beetechgroup.beetask.usecase.task.listall.ListTasksInput;
 import net.beetechgroup.beetask.usecase.task.listall.ListMyTasksInput;
 import net.beetechgroup.beetask.usecase.task.start.StartTaskInput;
 import net.beetechgroup.beetask.usecase.task.stop.StopTaskInput;
@@ -11,6 +12,18 @@ import net.beetechgroup.beetask.usecase.task.update.UpdateTaskInput;
 
 public class TaskControllerMapper {
 
+    public static ListTasksInput toListTasksInput(ListTasksRequest request, String email) {
+        return new ListTasksInput(
+                email,
+                request.organizationId,
+                request.text,
+                request.projectIds,
+                request.statuses,
+                request.categoryIds,
+                request.userIds
+        );
+    }
+
     public static ListMyTasksInput toListMyTasksInput(ListMyTasksRequest request, String email) {
         return new ListMyTasksInput(email, request.text, request.projectIds, request.statuses, request.categoryIds);
     }
@@ -45,6 +58,13 @@ public class TaskControllerMapper {
                                 output.category().color(),
                                 output.category().icon())
                         : null,
+                Objects.nonNull(output.user())
+                        ? new CreateTaskResponse.UserResponse(
+                                output.user().id(),
+                                output.user().name(),
+                                output.user().email(),
+                                output.user().photo())
+                        : null,
                 output.finishedAt(),
                 output.history().stream().map(taskHistoryItemOutput -> new TaskHistoryItemResponse(
                         taskHistoryItemOutput.id(), taskHistoryItemOutput.startAt(), taskHistoryItemOutput.endAt())).toList()
@@ -55,8 +75,8 @@ public class TaskControllerMapper {
         return new StartTaskInput(id, email);
     }
 
-    public static StopTaskInput toStopTaskInput(Long id) {
-        return new StopTaskInput(id);
+    public static StopTaskInput toStopTaskInput(Long id, String email) {
+        return new StopTaskInput(id, email);
     }
 
     public static UpdateTaskInput toUpdateTaskInput(Long id, CreateTaskRequest request, String userEmail) {
diff --git a/backend/src/main/java/net/beetechgroup/beetask/usecase/repository/TaskRepository.java b/backend/src/main/java/net/beetechgroup/beetask/usecase/repository/TaskRepository.java
index 45f0833..58acb36 100644
--- a/backend/src/main/java/net/beetechgroup/beetask/usecase/repository/TaskRepository.java
+++ b/backend/src/main/java/net/beetechgroup/beetask/usecase/repository/TaskRepository.java
@@ -10,6 +10,8 @@ public interface TaskRepository {
     Task saveTask(Task task);
     Task findTaskById(Long id);
     List<Task> findAllTasks();
+    List<Task> findAccessibleTasksFiltered(String email, Long organizationId, String text, List<Long> projectIds,
+                                           List<TaskStatus> statuses, List<Long> categoryIds, List<Long> userIds);
     List<Task> findTasksWorkedByUserInPeriod(String email, LocalDateTime start, LocalDateTime end);
     List<Task> findTasksFinishedByUserInPeriod(String email, LocalDateTime start, LocalDateTime end);
     List<Task> findTasksByUser(String email);
diff --git a/backend/src/main/java/net/beetechgroup/beetask/usecase/task/create/CreateTaskMapper.java b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/create/CreateTaskMapper.java
index 75fe2ec..a3f6d5d 100644
--- a/backend/src/main/java/net/beetechgroup/beetask/usecase/task/create/CreateTaskMapper.java
+++ b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/create/CreateTaskMapper.java
@@ -21,10 +21,24 @@ public class CreateTaskMapper {
                                 task.getCategory().getColor(),
                                 task.getCategory().getIcon())
                         : null,
+                Objects.nonNull(task.getUser())
+                        ? new CreateTaskOutput.UserOutput(
+                                task.getUser().getId(),
+                                task.getUser().getName(),
+                                task.getUser().getEmail(),
+                                getPhotoUrl(task.getUser().getName(), task.getUser().getPhoto()))
+                        : null,
                 task.getFinishedAt(),
                 task.getHistory().stream().map(CreateTaskMapper::toTaskHistoryItemOutput).toList());
     }
 
+    private static String getPhotoUrl(String name, String photo) {
+        if (Objects.nonNull(photo) && !photo.isBlank()) {
+            return photo;
+        }
+        return "https://ui-avatars.com/api/?name=" + name.replace(" ", "+") + "&background=random";
+    }
+
     private static TaskHistoryItemOutput toTaskHistoryItemOutput(TaskHistoryItem taskHistoryItem) {
         return new TaskHistoryItemOutput(
                 taskHistoryItem.getId(),
diff --git a/backend/src/main/java/net/beetechgroup/beetask/usecase/task/create/CreateTaskOutput.java b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/create/CreateTaskOutput.java
index 43b531f..b3ead68 100644
--- a/backend/src/main/java/net/beetechgroup/beetask/usecase/task/create/CreateTaskOutput.java
+++ b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/create/CreateTaskOutput.java
@@ -11,9 +11,11 @@ public record CreateTaskOutput(
                 TaskStatus status,
                 ProjectOutput project,
                 CategoryOutput category,
+                UserOutput user,
                 LocalDateTime finishedAt,
                 List<TaskHistoryItemOutput> history) {
 
     public record ProjectOutput(Long id, String name) {}
     public record CategoryOutput(Long id, String name, String color, String icon) {}
+    public record UserOutput(Long id, String name, String email, String photo) {}
 }
diff --git a/backend/src/main/java/net/beetechgroup/beetask/usecase/task/listall/ListAllTasksUseCase.java b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/listall/ListAllTasksUseCase.java
index 92ba076..848d1f8 100644
--- a/backend/src/main/java/net/beetechgroup/beetask/usecase/task/listall/ListAllTasksUseCase.java
+++ b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/listall/ListAllTasksUseCase.java
@@ -1,6 +1,7 @@
 package net.beetechgroup.beetask.usecase.task.listall;
 
 import net.beetechgroup.beetask.usecase.repository.TaskRepository;
+import net.beetechgroup.beetask.usecase.repository.UserRepository;
 import net.beetechgroup.beetask.usecase.task.create.CreateTaskMapper;
 import net.beetechgroup.beetask.usecase.task.create.CreateTaskOutput;
 import org.jboss.logging.Logger;
@@ -11,14 +12,40 @@ public class ListAllTasksUseCase {
     private static final Logger LOGGER = Logger.getLogger(ListAllTasksUseCase.class);
 
     private final TaskRepository taskRepository;
+    private final UserRepository userRepository;
 
-    public ListAllTasksUseCase(TaskRepository taskRepository) {
+    public ListAllTasksUseCase(TaskRepository taskRepository, UserRepository userRepository) {
         this.taskRepository = taskRepository;
+        this.userRepository = userRepository;
     }
 
-    public List<CreateTaskOutput> execute() {
-        List<CreateTaskOutput> tasks = taskRepository.findAllTasks().stream().map(CreateTaskMapper::toCreateTaskOutput).toList();
-        LOGGER.infof("Loaded %d tasks from repository", tasks.size());
+    public List<CreateTaskOutput> execute(ListTasksInput input) {
+        if (input.organizationId() == null) {
+            throw new IllegalArgumentException("organizationId is required");
+        }
+
+        var user = userRepository.findByEmail(input.userEmail())
+                .orElseThrow(() -> new IllegalArgumentException("Authenticated user was not found"));
+
+        boolean belongsToOrganization = userRepository.findUserOrganizations(user.getId()).stream()
+                .anyMatch(membership -> membership.getOrganization().getId().equals(input.organizationId()));
+
+        if (!belongsToOrganization) {
+            throw new SecurityException("Você não tem permissão para listar tarefas desta organização.");
+        }
+
+        List<CreateTaskOutput> tasks = taskRepository.findAccessibleTasksFiltered(
+                        input.userEmail(),
+                        input.organizationId(),
+                        input.text(),
+                        input.projectIds(),
+                        input.statuses(),
+                        input.categoryIds(),
+                        input.userIds())
+                .stream()
+                .map(CreateTaskMapper::toCreateTaskOutput)
+                .toList();
+        LOGGER.infof("Loaded %d accessible tasks for user %s in organization %d", tasks.size(), input.userEmail(), input.organizationId());
         return tasks;
     }
 }
diff --git a/backend/src/main/java/net/beetechgroup/beetask/usecase/task/listall/ListTasksInput.java b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/listall/ListTasksInput.java
new file mode 100644
index 0000000..64e8998
--- /dev/null
+++ b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/listall/ListTasksInput.java
@@ -0,0 +1,14 @@
+package net.beetechgroup.beetask.usecase.task.listall;
+
+import java.util.List;
+
+import net.beetechgroup.beetask.entities.task.TaskStatus;
+
+public record ListTasksInput(
+        String userEmail,
+        Long organizationId,
+        String text,
+        List<Long> projectIds,
+        List<TaskStatus> statuses,
+        List<Long> categoryIds,
+        List<Long> userIds) {}
diff --git a/backend/src/main/java/net/beetechgroup/beetask/usecase/task/stop/StopTaskInput.java b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/stop/StopTaskInput.java
index 95fe40a..71e1a6b 100644
--- a/backend/src/main/java/net/beetechgroup/beetask/usecase/task/stop/StopTaskInput.java
+++ b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/stop/StopTaskInput.java
@@ -1,4 +1,4 @@
 package net.beetechgroup.beetask.usecase.task.stop;
 
-public record StopTaskInput(Long id) {
+public record StopTaskInput(Long id, String userEmail) {
 }
diff --git a/backend/src/main/java/net/beetechgroup/beetask/usecase/task/stop/StopTaskUseCase.java b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/stop/StopTaskUseCase.java
index d71e385..8f137ea 100644
--- a/backend/src/main/java/net/beetechgroup/beetask/usecase/task/stop/StopTaskUseCase.java
+++ b/backend/src/main/java/net/beetechgroup/beetask/usecase/task/stop/StopTaskUseCase.java
@@ -16,8 +16,15 @@ public class StopTaskUseCase {
     }
 
     public CreateTaskOutput execute(StopTaskInput input) {
-        LOGGER.infof("Stopping task %d", input.id());
+        LOGGER.infof("Stopping task %d for user %s", input.id(), input.userEmail());
         Task task = taskRepository.findTaskById(input.id());
+
+        if (task.getUser() != null && !task.getUser().getEmail().equals(input.userEmail())) {
+            LOGGER.warnf("User %s attempted to stop task %d owned by %s",
+                    input.userEmail(), input.id(), task.getUser().getEmail());
+            throw new SecurityException("Você não tem permissão para parar esta tarefa.");
+        }
+
         task.stop();
         CreateTaskOutput output = CreateTaskMapper.toCreateTaskOutput(taskRepository.saveTask(task));
         LOGGER.infof("Task %d stopped successfully", input.id());
diff --git a/frontend/src/components/TaskFilterBar.tsx b/frontend/src/components/TaskFilterBar.tsx
index 6b3ef13..df39cb6 100644
--- a/frontend/src/components/TaskFilterBar.tsx
+++ b/frontend/src/components/TaskFilterBar.tsx
@@ -6,12 +6,15 @@ import { MultiSelectChips } from './MultiSelectChips'
 import { CategoryIcon } from './CategoryIcon'
 import { MultiSelectDropdown } from './MultiSelectDropdown'
 import type { TaskFilters } from './taskFilters'
+import type { TaskAssignee } from '../types/task'
+import { UserAvatar } from './UserAvatar'
 
 interface TaskFilterBarProps {
   filters: TaskFilters
   onFiltersChange: (filters: TaskFilters) => void
   projects: Project[]
   categories: Category[]
+  assignees: TaskAssignee[]
   isLoading?: boolean
   onRefresh?: () => void
 }
@@ -21,6 +24,7 @@ export function TaskFilterBar({
   onFiltersChange,
   projects,
   categories,
+  assignees,
   isLoading,
   onRefresh,
 }: TaskFilterBarProps) {
@@ -81,6 +85,22 @@ export function TaskFilterBar({
         />
       </div>
 
+      {assignees.length > 0 && (
+        <div className="grid gap-3">
+          <MultiSelectDropdown
+            label="Funcionario"
+            allLabel="Todos os funcionarios"
+            options={assignees.map((assignee) => ({
+              value: assignee.id,
+              label: assignee.name,
+              icon: <UserAvatar name={assignee.name} photo={assignee.photo} size="sm" />,
+            }))}
+            selected={filters.userIds}
+            onChange={(userIds) => update({ userIds })}
+          />
+        </div>
+      )}
+
       {categories.length > 0 && (
         <div className="flex items-center gap-2">
           <Filter size={16} className="shrink-0 text-text-muted" />
diff --git a/frontend/src/components/TaskTimer.tsx b/frontend/src/components/TaskTimer.tsx
index 3db7873..2d6d135 100644
--- a/frontend/src/components/TaskTimer.tsx
+++ b/frontend/src/components/TaskTimer.tsx
@@ -9,6 +9,7 @@ import type { TaskResponse } from '../types/task'
 interface TaskTimerProps {
   task: TaskResponse
   onUpdate: () => void
+  canControl?: boolean
 }
 
 function formatDuration(seconds: number) {
@@ -23,7 +24,7 @@ function formatDuration(seconds: number) {
   ].join(':')
 }
 
-export function TaskTimer({ task, onUpdate }: TaskTimerProps) {
+export function TaskTimer({ task, onUpdate, canControl = true }: TaskTimerProps) {
   const [isActionLoading, setIsActionLoading] = useState(false)
 
   const history = task.history ?? []
@@ -127,8 +128,9 @@ export function TaskTimer({ task, onUpdate }: TaskTimerProps) {
         </span>
       </div>
 
-      <div className="ml-auto pr-1">
-        {runningItem ? (
+      {canControl && (
+        <div className="ml-auto pr-1">
+          {runningItem ? (
           <button
             onClick={handleStop}
             disabled={isActionLoading}
@@ -137,7 +139,7 @@ export function TaskTimer({ task, onUpdate }: TaskTimerProps) {
           >
             <Square size={16} fill="currentColor" />
           </button>
-        ) : (
+          ) : (
           <button
             onClick={handleStart}
             disabled={isActionLoading}
@@ -146,8 +148,9 @@ export function TaskTimer({ task, onUpdate }: TaskTimerProps) {
           >
             <Play size={16} fill="currentColor" className="ml-0.5" />
           </button>
-        )}
-      </div>
+          )}
+        </div>
+      )}
     </div>
   )
 }
diff --git a/frontend/src/components/UserAvatar.tsx b/frontend/src/components/UserAvatar.tsx
new file mode 100644
index 0000000..97fadf9
--- /dev/null
+++ b/frontend/src/components/UserAvatar.tsx
@@ -0,0 +1,47 @@
+import { cn } from '../lib/utils'
+
+interface UserAvatarProps {
+  name: string
+  photo?: string | null
+  size?: 'sm' | 'md' | 'lg'
+  className?: string
+}
+
+const sizeClasses = {
+  sm: 'h-8 w-8 rounded-xl text-xs',
+  md: 'h-10 w-10 rounded-2xl text-sm',
+  lg: 'h-14 w-14 rounded-2xl text-xl',
+}
+
+export function UserAvatar({ name, photo, size = 'md', className }: UserAvatarProps) {
+  const initials = name
+    .split(' ')
+    .slice(0, 2)
+    .map((part) => part[0])
+    .join('')
+    .toUpperCase()
+
+  if (photo) {
+    return (
+      <img
+        src={photo}
+        alt={name}
+        title={name}
+        className={cn('shrink-0 object-cover', sizeClasses[size], className)}
+      />
+    )
+  }
+
+  return (
+    <div
+      title={name}
+      className={cn(
+        'flex shrink-0 items-center justify-center bg-brand/10 font-black text-brand',
+        sizeClasses[size],
+        className,
+      )}
+    >
+      {initials}
+    </div>
+  )
+}
diff --git a/frontend/src/components/taskFilters.ts b/frontend/src/components/taskFilters.ts
index 07d531e..b5c59d3 100644
--- a/frontend/src/components/taskFilters.ts
+++ b/frontend/src/components/taskFilters.ts
@@ -5,6 +5,7 @@ export interface TaskFilters {
   statuses: TaskStatus[]
   categoryIds: number[]
   projectIds: number[]
+  userIds: number[]
 }
 
 export const DEFAULT_TASK_FILTERS: TaskFilters = {
@@ -12,4 +13,5 @@ export const DEFAULT_TASK_FILTERS: TaskFilters = {
   statuses: [],
   categoryIds: [],
   projectIds: [],
+  userIds: [],
 }
diff --git a/frontend/src/pages/TaskBoardPage.tsx b/frontend/src/pages/TaskBoardPage.tsx
index d67b683..5981591 100644
--- a/frontend/src/pages/TaskBoardPage.tsx
+++ b/frontend/src/pages/TaskBoardPage.tsx
@@ -5,6 +5,7 @@ import {
   CheckCircle2,
   Clock,
   List,
+  type LucideIcon,
   MoreVertical,
   Plus,
   XCircle,
@@ -13,45 +14,78 @@ import { useEffect, useRef, useState } from 'react'
 import { Link, useNavigate } from 'react-router-dom'
 
 import { taskService } from '../services/taskService'
-import { projectService } from '../services/projectService'
 import type { Project } from '../services/projectService'
 import { categoryService } from '../services/categoryService'
 import type { Category } from '../types/category'
 import { cn } from '../lib/utils'
-import type { TaskResponse, TaskStatus } from '../types/task'
+import type { TaskAssignee, TaskResponse, TaskStatus } from '../types/task'
 import { TaskTimer } from '../components/TaskTimer'
 import { TaskFilterBar } from '../components/TaskFilterBar'
 import { DEFAULT_TASK_FILTERS, type TaskFilters } from '../components/taskFilters'
 import { CategoryBadge } from '../components/CategoryBadge'
 import { useAuth } from '../contexts/AuthContext'
 
-const COLUMNS: { id: TaskStatus; label: string; icon: any; color: string }[] = [
+const COLUMNS: { id: TaskStatus; label: string; icon: LucideIcon; color: string }[] = [
   { id: 'NOT_STARTED', label: 'Pendente', icon: AlertCircle, color: 'text-text-muted' },
   { id: 'IN_PROGRESS', label: 'Em Andamento', icon: Clock, color: 'text-warning' },
   { id: 'COMPLETED', label: 'Concluída', icon: CheckCircle2, color: 'text-success' },
   { id: 'CANCELED', label: 'Cancelada', icon: XCircle, color: 'text-danger' },
 ]
 
+function mergeProjects(existing: Project[], tasks: TaskResponse[]) {
+  const byId = new Map(existing.map((project) => [project.id, project]))
+
+  tasks.forEach((task) => {
+    if (task.project) {
+      byId.set(task.project.id, { id: task.project.id, name: task.project.name })
+    }
+  })
+
+  return Array.from(byId.values()).sort((a, b) => a.name.localeCompare(b.name))
+}
+
+function extractAssignees(tasks: TaskResponse[]) {
+  const byId = new Map<number, TaskAssignee>()
+
+  tasks.forEach((task) => {
+    if (task.user) {
+      byId.set(task.user.id, task.user)
+    }
+  })
+
+  return Array.from(byId.values()).sort((a, b) => a.name.localeCompare(b.name))
+}
+
 export function TaskBoardPage() {
   const [tasks, setTasks] = useState<TaskResponse[]>([])
   const [isLoading, setIsLoading] = useState(true)
   const [projects, setProjects] = useState<Project[]>([])
   const [categories, setCategories] = useState<Category[]>([])
+  const [assignees, setAssignees] = useState<TaskAssignee[]>([])
   const [filters, setFilters] = useState<TaskFilters>(DEFAULT_TASK_FILTERS)
   const navigate = useNavigate()
-  const { activeOrg } = useAuth()
+  const { activeOrg, user } = useAuth()
   const debounceRef = useRef<ReturnType<typeof setTimeout> | null>(null)
 
   const loadTasks = async (currentFilters: TaskFilters, silent = false) => {
+    if (!activeOrg) return
     if (!silent) setIsLoading(true)
     try {
-      const response = await taskService.getMyTasks({
+      const response = await taskService.getTasks({
+        organizationId: activeOrg.id,
         text: currentFilters.searchQuery || undefined,
         projectIds: currentFilters.projectIds.length > 0 ? currentFilters.projectIds : undefined,
         statuses: currentFilters.statuses.length > 0 ? currentFilters.statuses : undefined,
         categoryIds: currentFilters.categoryIds.length > 0 ? currentFilters.categoryIds : undefined,
+        userIds: currentFilters.userIds.length > 0 ? currentFilters.userIds : undefined,
       })
       setTasks(response)
+      setProjects((current) => mergeProjects(current, response))
+      setAssignees((current) => {
+        const byId = new Map(current.map((assignee) => [assignee.id, assignee]))
+        extractAssignees(response).forEach((assignee) => byId.set(assignee.id, assignee))
+        return Array.from(byId.values()).sort((a, b) => a.name.localeCompare(b.name))
+      })
     } catch (error) {
       console.error('Erro ao carregar tarefas', error)
     } finally {
@@ -60,12 +94,14 @@ export function TaskBoardPage() {
   }
 
   useEffect(() => {
-    void loadTasks(filters)
-    if (activeOrg) {
-      projectService.listByOrganization(activeOrg.id).then(setProjects).catch(() => {})
-      categoryService.listByOrganization(activeOrg.id).then(setCategories).catch(() => {})
-    }
-  }, [])
+    if (!activeOrg) return
+    setFilters(DEFAULT_TASK_FILTERS)
+    setProjects([])
+    setAssignees([])
+    setCategories([])
+    void loadTasks(DEFAULT_TASK_FILTERS)
+    categoryService.listByOrganization(activeOrg.id).then(setCategories).catch(() => {})
+  }, [activeOrg])
 
   const handleFiltersChange = (newFilters: TaskFilters) => {
     setFilters(newFilters)
@@ -145,6 +181,7 @@ export function TaskBoardPage() {
         onFiltersChange={handleFiltersChange}
         projects={projects}
         categories={categories}
+        assignees={assignees}
         isLoading={isLoading}
         onRefresh={() => void loadTasks(filters)}
       />
@@ -180,13 +217,16 @@ export function TaskBoardPage() {
                         : 'bg-surface/50',
                     )}
                   >
-                    {tasksByStatus(column.id).map((task, index) => (
-                      <Draggable
-                        key={task.id}
-                        draggableId={task.id.toString()}
-                        index={index}
-                      >
-                        {(provided, snapshot) => (
+                    {tasksByStatus(column.id).map((task, index) => {
+                      const canControlTimer = Boolean(user?.email && task.user?.email === user.email)
+
+                      return (
+                        <Draggable
+                          key={task.id}
+                          draggableId={task.id.toString()}
+                          index={index}
+                        >
+                          {(provided, snapshot) => (
                           <div
                             ref={provided.innerRef}
                             {...provided.draggableProps}
@@ -211,7 +251,11 @@ export function TaskBoardPage() {
                             )}
 
                             <div className="mt-4 space-y-4">
-                              <TaskTimer task={task} onUpdate={() => loadTasks(filters, true)} />
+                              <TaskTimer
+                                task={task}
+                                canControl={canControlTimer}
+                                onUpdate={() => loadTasks(filters, true)}
+                              />
 
                               <div className="flex items-center justify-between gap-2">
                                 <div className="flex items-center gap-2">
@@ -227,9 +271,10 @@ export function TaskBoardPage() {
                               </div>
                             </div>
                           </div>
-                        )}
-                      </Draggable>
-                    ))}
+                          )}
+                        </Draggable>
+                      )
+                    })}
                     {provided.placeholder}
                   </div>
                 )}
diff --git a/frontend/src/pages/TaskListPage.tsx b/frontend/src/pages/TaskListPage.tsx
index b827915..6aab0a1 100644
--- a/frontend/src/pages/TaskListPage.tsx
+++ b/frontend/src/pages/TaskListPage.tsx
@@ -15,16 +15,16 @@ import { useEffect, useRef, useState } from 'react'
 import { Link, useNavigate } from 'react-router-dom'
 
 import { taskService } from '../services/taskService'
-import { projectService } from '../services/projectService'
 import type { Project } from '../services/projectService'
 import { categoryService } from '../services/categoryService'
 import type { Category } from '../types/category'
 import { cn } from '../lib/utils'
-import type { TaskResponse } from '../types/task'
+import type { TaskAssignee, TaskResponse } from '../types/task'
 import { TaskTimer } from '../components/TaskTimer'
 import { TaskFilterBar } from '../components/TaskFilterBar'
 import { DEFAULT_TASK_FILTERS, type TaskFilters } from '../components/taskFilters'
 import { CategoryBadge } from '../components/CategoryBadge'
+import { UserAvatar } from '../components/UserAvatar'
 import { useAuth } from '../contexts/AuthContext'
 
 function getStatusConfig(status: TaskResponse['status']) {
@@ -56,26 +56,60 @@ function getStatusConfig(status: TaskResponse['status']) {
   }
 }
 
+function mergeProjects(existing: Project[], tasks: TaskResponse[]) {
+  const byId = new Map(existing.map((project) => [project.id, project]))
+
+  tasks.forEach((task) => {
+    if (task.project) {
+      byId.set(task.project.id, { id: task.project.id, name: task.project.name })
+    }
+  })
+
+  return Array.from(byId.values()).sort((a, b) => a.name.localeCompare(b.name))
+}
+
+function extractAssignees(tasks: TaskResponse[]) {
+  const byId = new Map<number, TaskAssignee>()
+
+  tasks.forEach((task) => {
+    if (task.user) {
+      byId.set(task.user.id, task.user)
+    }
+  })
+
+  return Array.from(byId.values()).sort((a, b) => a.name.localeCompare(b.name))
+}
+
 export function TaskListPage() {
   const [tasks, setTasks] = useState<TaskResponse[]>([])
   const [isLoading, setIsLoading] = useState(true)
   const [projects, setProjects] = useState<Project[]>([])
   const [categories, setCategories] = useState<Category[]>([])
+  const [assignees, setAssignees] = useState<TaskAssignee[]>([])
   const [filters, setFilters] = useState<TaskFilters>(DEFAULT_TASK_FILTERS)
   const navigate = useNavigate()
-  const { activeOrg } = useAuth()
+  const { activeOrg, user } = useAuth()
   const debounceRef = useRef<ReturnType<typeof setTimeout> | null>(null)
 
   const loadTasks = async (currentFilters: TaskFilters, silent = false) => {
+    if (!activeOrg) return
     if (!silent) setIsLoading(true)
     try {
-      const response = await taskService.getMyTasks({
+      const response = await taskService.getTasks({
+        organizationId: activeOrg.id,
         text: currentFilters.searchQuery || undefined,
         projectIds: currentFilters.projectIds.length > 0 ? currentFilters.projectIds : undefined,
         statuses: currentFilters.statuses.length > 0 ? currentFilters.statuses : undefined,
         categoryIds: currentFilters.categoryIds.length > 0 ? currentFilters.categoryIds : undefined,
+        userIds: currentFilters.userIds.length > 0 ? currentFilters.userIds : undefined,
       })
       setTasks(response)
+      setProjects((current) => mergeProjects(current, response))
+      setAssignees((current) => {
+        const byId = new Map(current.map((assignee) => [assignee.id, assignee]))
+        extractAssignees(response).forEach((assignee) => byId.set(assignee.id, assignee))
+        return Array.from(byId.values()).sort((a, b) => a.name.localeCompare(b.name))
+      })
     } catch (error) {
       console.error('Erro ao carregar tarefas', error)
     } finally {
@@ -84,12 +118,14 @@ export function TaskListPage() {
   }
 
   useEffect(() => {
-    void loadTasks(filters)
-    if (activeOrg) {
-      projectService.listByOrganization(activeOrg.id).then(setProjects).catch(() => {})
-      categoryService.listByOrganization(activeOrg.id).then(setCategories).catch(() => {})
-    }
-  }, [])
+    if (!activeOrg) return
+    setFilters(DEFAULT_TASK_FILTERS)
+    setProjects([])
+    setAssignees([])
+    setCategories([])
+    void loadTasks(DEFAULT_TASK_FILTERS)
+    categoryService.listByOrganization(activeOrg.id).then(setCategories).catch(() => {})
+  }, [activeOrg])
 
   const handleFiltersChange = (newFilters: TaskFilters) => {
     setFilters(newFilters)
@@ -139,6 +175,7 @@ export function TaskListPage() {
         onFiltersChange={handleFiltersChange}
         projects={projects}
         categories={categories}
+        assignees={assignees}
         isLoading={isLoading}
         onRefresh={() => void loadTasks(filters)}
       />
@@ -148,6 +185,7 @@ export function TaskListPage() {
           {tasks.map((task, i) => {
             const config = getStatusConfig(task.status)
             const StatusIcon = config.icon
+            const canControlTimer = Boolean(user?.email && task.user?.email === user.email)
 
             return (
               <motion.article
@@ -184,24 +222,36 @@ export function TaskListPage() {
                 </p>
 
                 <div className="mt-6 flex flex-col gap-4">
-                  <TaskTimer task={task} onUpdate={() => loadTasks(filters, true)} />
+                  <TaskTimer
+                    task={task}
+                    canControl={canControlTimer}
+                    onUpdate={() => loadTasks(filters, true)}
+                  />
 
-                  <div className="flex flex-wrap items-center gap-3 border-t border-border-soft/50 pt-4">
-                    <div className="flex items-center gap-1.5 text-xs font-bold text-text-muted">
-                      <Tag size={14} className="text-brand" />
-                      {task.project?.name || 'Geral'}
+                  <div className="flex flex-wrap items-center justify-between gap-3 border-t border-border-soft/50 pt-4">
+                    <div className="flex flex-wrap items-center gap-3">
+                      <div className="flex items-center gap-1.5 text-xs font-bold text-text-muted">
+                        <Tag size={14} className="text-brand" />
+                        {task.project?.name || 'Geral'}
+                      </div>
+                      {task.category && (
+                        <>
+                          <div className="h-4 w-px bg-border-soft" />
+                          <CategoryBadge category={task.category} />
+                        </>
+                      )}
+                      <div className="h-4 w-px bg-border-soft" />
+                      <div className="flex items-center gap-1.5 text-xs font-bold text-text-muted">
+                        <Calendar size={14} className="text-accent" />
+                        {task.history?.length ?? 0} registros
+                      </div>
                     </div>
-                    {task.category && (
-                      <>
-                        <div className="h-4 w-px bg-border-soft" />
-                        <CategoryBadge category={task.category} />
-                      </>
+
+                    {task.user && (
+                      <div className="flex items-center gap-2 text-xs font-bold text-text-muted">
+                        <UserAvatar name={task.user.name} photo={task.user.photo} size="sm" />
+                      </div>
                     )}
-                    <div className="h-4 w-px bg-border-soft" />
-                    <div className="flex items-center gap-1.5 text-xs font-bold text-text-muted">
-                      <Calendar size={14} className="text-accent" />
-                      {task.history?.length ?? 0} registros
-                    </div>
                   </div>
                 </div>
               </motion.article>
diff --git a/frontend/src/services/taskService.ts b/frontend/src/services/taskService.ts
index 3f64962..9204b64 100644
--- a/frontend/src/services/taskService.ts
+++ b/frontend/src/services/taskService.ts
@@ -1,26 +1,26 @@
 import { apiFetch } from '../lib/api'
 import type { TaskResponse, TaskStatus } from '../types/task'
 
-export interface GetMyTasksFilters {
+export interface GetTasksFilters {
+  organizationId: number
   text?: string
   projectIds?: number[]
   statuses?: TaskStatus[]
   categoryIds?: number[]
+  userIds?: number[]
 }
 
 export const taskService = {
-  async getTasks(): Promise<TaskResponse[]> {
-    return apiFetch<TaskResponse[]>('/tasks')
-  },
-
-  async getMyTasks(filters?: GetMyTasksFilters): Promise<TaskResponse[]> {
+  async getTasks(filters: GetTasksFilters): Promise<TaskResponse[]> {
     const params = new URLSearchParams()
+    params.set('organizationId', String(filters.organizationId))
     if (filters?.text) params.set('text', filters.text)
     filters?.projectIds?.forEach((id) => params.append('projectId', String(id)))
     filters?.statuses?.forEach((s) => params.append('status', s))
     filters?.categoryIds?.forEach((id) => params.append('categoryId', String(id)))
+    filters?.userIds?.forEach((id) => params.append('userId', String(id)))
     const query = params.toString()
-    return apiFetch<TaskResponse[]>(`/tasks/mine${query ? `?${query}` : ''}`)
+    return apiFetch<TaskResponse[]>(`/tasks${query ? `?${query}` : ''}`)
   },
 
   async createTask(task: {
diff --git a/frontend/src/types/task.ts b/frontend/src/types/task.ts
index 0eebb7e..1f257ed 100644
--- a/frontend/src/types/task.ts
+++ b/frontend/src/types/task.ts
@@ -40,6 +40,13 @@ export type TaskCategory = {
   icon: string
 }
 
+export type TaskAssignee = {
+  id: number
+  name: string
+  email: string
+  photo: string
+}
+
 export type TaskResponse = {
   id: number
   title: string
@@ -47,6 +54,7 @@ export type TaskResponse = {
   status: TaskStatus
   project: TaskProject | null
   category: TaskCategory | null
+  user: TaskAssignee | null
   finishedAt?: string
   history?: TaskHistoryItem[]
 }