diff --git a/app/api/teams/[teamId]/route.ts b/app/api/teams/[teamId]/route.ts
new file mode 100644
index 0000000..becaea3
--- /dev/null
+++ b/app/api/teams/[teamId]/route.ts
@@ -0,0 +1,62 @@
+import { NextResponse } from "next/server";
+import { TeamsService } from "@/services";
+import { Team } from "@/lib/types";
+
+interface RouteParams {
+  params: {
+    teamId: string;
+  };
+}
+
+export async function GET(request: Request, { params }: RouteParams) {
+  try {
+    const team = await TeamsService.getTeamById(params.teamId);
+
+    if (!team) {
+      return NextResponse.json({ error: "Team not found" }, { status: 404 });
+    }
+
+    return NextResponse.json(team);
+  } catch (error) {
+    console.error("Error loading team:", error);
+    return NextResponse.json({ error: "Failed to load team" }, { status: 500 });
+  }
+}
+
+export async function PUT(request: Request, { params }: RouteParams) {
+  try {
+    const updates: Partial<Omit<Team, "id">> = await request.json();
+
+    const team = await TeamsService.updateTeam(params.teamId, updates);
+
+    if (!team) {
+      return NextResponse.json({ error: "Team not found" }, { status: 404 });
+    }
+
+    return NextResponse.json(team);
+  } catch (error) {
+    console.error("Error updating team:", error);
+    return NextResponse.json(
+      { error: "Failed to update team" },
+      { status: 500 }
+    );
+  }
+}
+
+export async function DELETE(request: Request, { params }: RouteParams) {
+  try {
+    const deleted = await TeamsService.deleteTeam(params.teamId);
+
+    if (!deleted) {
+      return NextResponse.json({ error: "Team not found" }, { status: 404 });
+    }
+
+    return NextResponse.json({ success: true });
+  } catch (error) {
+    console.error("Error deleting team:", error);
+    return NextResponse.json(
+      { error: "Failed to delete team" },
+      { status: 500 }
+    );
+  }
+}
diff --git a/app/api/teams/direction/[direction]/route.ts b/app/api/teams/direction/[direction]/route.ts
new file mode 100644
index 0000000..05b5344
--- /dev/null
+++ b/app/api/teams/direction/[direction]/route.ts
@@ -0,0 +1,21 @@
+import { NextResponse } from "next/server";
+import { TeamsService } from "@/services";
+
+interface RouteParams {
+  params: {
+    direction: string;
+  };
+}
+
+export async function GET(request: Request, { params }: RouteParams) {
+  try {
+    const teams = await TeamsService.getTeamsByDirection(params.direction);
+    return NextResponse.json(teams);
+  } catch (error) {
+    console.error("Error loading teams by direction:", error);
+    return NextResponse.json(
+      { error: "Failed to load teams by direction" },
+      { status: 500 }
+    );
+  }
+}
diff --git a/app/api/teams/directions/route.ts b/app/api/teams/directions/route.ts
new file mode 100644
index 0000000..e8bff71
--- /dev/null
+++ b/app/api/teams/directions/route.ts
@@ -0,0 +1,15 @@
+import { NextResponse } from "next/server";
+import { TeamsService } from "@/services";
+
+export async function GET() {
+  try {
+    const directions = await TeamsService.getDirections();
+    return NextResponse.json(directions);
+  } catch (error) {
+    console.error("Error loading directions:", error);
+    return NextResponse.json(
+      { error: "Failed to load directions" },
+      { status: 500 }
+    );
+  }
+}
diff --git a/app/api/teams/route.ts b/app/api/teams/route.ts
index f4a0730..4b95c69 100644
--- a/app/api/teams/route.ts
+++ b/app/api/teams/route.ts
@@ -1,20 +1,11 @@
 import { NextResponse } from "next/server";
-import fs from "fs";
-import path from "path";
+import { TeamsService } from "@/services";
 import { Team } from "@/lib/types";
 
 export async function GET() {
   try {
-    const filePath = path.join(process.cwd(), "data", "teams.json");
-
-    if (!fs.existsSync(filePath)) {
-      return NextResponse.json({ teams: [] });
-    }
-
-    const fileContent = fs.readFileSync(filePath, "utf-8");
-    const data = JSON.parse(fileContent);
-
-    return NextResponse.json(data.teams as Team[]);
+    const teams = await TeamsService.getTeams();
+    return NextResponse.json(teams);
   } catch (error) {
     console.error("Error loading teams:", error);
     return NextResponse.json(
@@ -23,3 +14,27 @@ export async function GET() {
     );
   }
 }
+
+export async function POST(request: Request) {
+  try {
+    const teamData: Omit<Team, "created_at" | "updated_at"> =
+      await request.json();
+
+    // Validate required fields
+    if (!teamData.id || !teamData.name || !teamData.direction) {
+      return NextResponse.json(
+        { error: "Missing required fields: id, name, direction" },
+        { status: 400 }
+      );
+    }
+
+    const team = await TeamsService.createTeam(teamData);
+    return NextResponse.json(team, { status: 201 });
+  } catch (error) {
+    console.error("Error creating team:", error);
+    return NextResponse.json(
+      { error: "Failed to create team" },
+      { status: 500 }
+    );
+  }
+}
diff --git a/scripts/init.sql b/scripts/init.sql
index 3ef00ac..eae442b 100644
--- a/scripts/init.sql
+++ b/scripts/init.sql
@@ -1,12 +1,21 @@
 -- Create enum for skill levels
 CREATE TYPE skill_level_enum AS ENUM ('never', 'not-autonomous', 'autonomous', 'expert');
 
+-- Teams table
+CREATE TABLE teams (
+    id VARCHAR(50) PRIMARY KEY,
+    name VARCHAR(100) NOT NULL,
+    direction VARCHAR(100) NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
 -- Users table
 CREATE TABLE users (
     id SERIAL PRIMARY KEY,
     first_name VARCHAR(100) NOT NULL,
     last_name VARCHAR(100) NOT NULL,
-    team_id VARCHAR(50) NOT NULL,
+    team_id VARCHAR(50) REFERENCES teams(id),
     created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
     updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
 );
@@ -51,7 +60,19 @@ CREATE TABLE skill_evaluations (
     UNIQUE(category_evaluation_id, skill_id)
 );
 
+-- Insert initial teams data
+INSERT INTO teams (id, name, direction) VALUES
+    ('frontend', 'Frontend', 'Engineering'),
+    ('backend', 'Backend', 'Engineering'),
+    ('devops', 'DevOps', 'Engineering'),
+    ('mobile', 'Mobile', 'Engineering'),
+    ('data', 'Data Science', 'Engineering'),
+    ('product', 'Product', 'Product'),
+    ('design', 'Design', 'Product'),
+    ('marketing', 'Marketing', 'Business');
+
 -- Indexes for performance
+CREATE INDEX idx_teams_direction ON teams(direction);
 CREATE INDEX idx_users_team_id ON users(team_id);
 CREATE INDEX idx_user_evaluations_user_id ON user_evaluations(user_id);
 CREATE INDEX idx_category_evaluations_user_evaluation_id ON category_evaluations(user_evaluation_id);
@@ -68,6 +89,9 @@ BEGIN
 END;
 $$ language 'plpgsql';
 
+CREATE TRIGGER update_teams_updated_at BEFORE UPDATE ON teams
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
+
 CREATE TRIGGER update_users_updated_at BEFORE UPDATE ON users
     FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
 
diff --git a/services/api-client.ts b/services/api-client.ts
index e1ed1ed..bf88ac1 100644
--- a/services/api-client.ts
+++ b/services/api-client.ts
@@ -1,4 +1,4 @@
-import { UserEvaluation, UserProfile, SkillLevel } from "../lib/types";
+import { UserEvaluation, UserProfile, SkillLevel, Team } from "../lib/types";
 
 export class ApiClient {
   private baseUrl: string;
@@ -168,6 +168,159 @@ export class ApiClient {
       throw error;
     }
   }
+
+  /**
+   * Charge toutes les équipes
+   */
+  async loadTeams(): Promise<Team[]> {
+    try {
+      const response = await fetch(`${this.baseUrl}/api/teams`);
+
+      if (!response.ok) {
+        throw new Error("Erreur lors du chargement des équipes");
+      }
+
+      return await response.json();
+    } catch (error) {
+      console.error("Erreur lors du chargement des équipes:", error);
+      return [];
+    }
+  }
+
+  /**
+   * Charge une équipe par ID
+   */
+  async loadTeamById(teamId: string): Promise<Team | null> {
+    try {
+      const response = await fetch(`${this.baseUrl}/api/teams/${teamId}`);
+
+      if (!response.ok) {
+        if (response.status === 404) {
+          return null;
+        }
+        throw new Error("Erreur lors du chargement de l'équipe");
+      }
+
+      return await response.json();
+    } catch (error) {
+      console.error("Erreur lors du chargement de l'équipe:", error);
+      return null;
+    }
+  }
+
+  /**
+   * Charge les équipes par direction
+   */
+  async loadTeamsByDirection(direction: string): Promise<Team[]> {
+    try {
+      const response = await fetch(
+        `${this.baseUrl}/api/teams/direction/${direction}`
+      );
+
+      if (!response.ok) {
+        throw new Error("Erreur lors du chargement des équipes par direction");
+      }
+
+      return await response.json();
+    } catch (error) {
+      console.error(
+        "Erreur lors du chargement des équipes par direction:",
+        error
+      );
+      return [];
+    }
+  }
+
+  /**
+   * Charge toutes les directions
+   */
+  async loadDirections(): Promise<string[]> {
+    try {
+      const response = await fetch(`${this.baseUrl}/api/teams/directions`);
+
+      if (!response.ok) {
+        throw new Error("Erreur lors du chargement des directions");
+      }
+
+      return await response.json();
+    } catch (error) {
+      console.error("Erreur lors du chargement des directions:", error);
+      return [];
+    }
+  }
+
+  /**
+   * Crée une nouvelle équipe
+   */
+  async createTeam(
+    team: Omit<Team, "created_at" | "updated_at">
+  ): Promise<Team | null> {
+    try {
+      const response = await fetch(`${this.baseUrl}/api/teams`, {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+        },
+        body: JSON.stringify(team),
+      });
+
+      if (!response.ok) {
+        throw new Error("Erreur lors de la création de l'équipe");
+      }
+
+      return await response.json();
+    } catch (error) {
+      console.error("Erreur lors de la création de l'équipe:", error);
+      return null;
+    }
+  }
+
+  /**
+   * Met à jour une équipe
+   */
+  async updateTeam(
+    teamId: string,
+    updates: Partial<Omit<Team, "id">>
+  ): Promise<Team | null> {
+    try {
+      const response = await fetch(`${this.baseUrl}/api/teams/${teamId}`, {
+        method: "PUT",
+        headers: {
+          "Content-Type": "application/json",
+        },
+        body: JSON.stringify(updates),
+      });
+
+      if (!response.ok) {
+        throw new Error("Erreur lors de la mise à jour de l'équipe");
+      }
+
+      return await response.json();
+    } catch (error) {
+      console.error("Erreur lors de la mise à jour de l'équipe:", error);
+      return null;
+    }
+  }
+
+  /**
+   * Supprime une équipe
+   */
+  async deleteTeam(teamId: string): Promise<boolean> {
+    try {
+      const response = await fetch(`${this.baseUrl}/api/teams/${teamId}`, {
+        method: "DELETE",
+      });
+
+      if (!response.ok) {
+        throw new Error("Erreur lors de la suppression de l'équipe");
+      }
+
+      return true;
+    } catch (error) {
+      console.error("Erreur lors de la suppression de l'équipe:", error);
+      return false;
+    }
+  }
 }
 
 // Instance singleton
diff --git a/services/index.ts b/services/index.ts
index 77d115d..cbdb761 100644
--- a/services/index.ts
+++ b/services/index.ts
@@ -8,5 +8,8 @@ export { getPool, closePool } from "./database";
 // Evaluation services (server-only)
 export { EvaluationService, evaluationService } from "./evaluation-service";
 
+// Teams services (server-only)
+export { TeamsService } from "./teams-service";
+
 // API client (can be used client-side)
 export { ApiClient, apiClient } from "./api-client";
diff --git a/services/teams-service.ts b/services/teams-service.ts
new file mode 100644
index 0000000..5ca0740
--- /dev/null
+++ b/services/teams-service.ts
@@ -0,0 +1,171 @@
+import { getPool } from "./database";
+import { Team } from "@/lib/types";
+
+export class TeamsService {
+  /**
+   * Get all teams
+   */
+  static async getTeams(): Promise<Team[]> {
+    const pool = getPool();
+    const query = `
+      SELECT id, name, direction
+      FROM teams
+      ORDER BY direction, name
+    `;
+
+    try {
+      const result = await pool.query(query);
+      return result.rows;
+    } catch (error) {
+      console.error("Error fetching teams:", error);
+      throw new Error("Failed to fetch teams");
+    }
+  }
+
+  /**
+   * Get teams by direction
+   */
+  static async getTeamsByDirection(direction: string): Promise<Team[]> {
+    const pool = getPool();
+    const query = `
+      SELECT id, name, direction
+      FROM teams
+      WHERE direction = $1
+      ORDER BY name
+    `;
+
+    try {
+      const result = await pool.query(query, [direction]);
+      return result.rows;
+    } catch (error) {
+      console.error("Error fetching teams by direction:", error);
+      throw new Error("Failed to fetch teams by direction");
+    }
+  }
+
+  /**
+   * Get team by ID
+   */
+  static async getTeamById(id: string): Promise<Team | null> {
+    const pool = getPool();
+    const query = `
+      SELECT id, name, direction
+      FROM teams
+      WHERE id = $1
+    `;
+
+    try {
+      const result = await pool.query(query, [id]);
+      return result.rows[0] || null;
+    } catch (error) {
+      console.error("Error fetching team by ID:", error);
+      throw new Error("Failed to fetch team");
+    }
+  }
+
+  /**
+   * Create a new team
+   */
+  static async createTeam(
+    team: Omit<Team, "created_at" | "updated_at">
+  ): Promise<Team> {
+    const pool = getPool();
+    const query = `
+      INSERT INTO teams (id, name, direction)
+      VALUES ($1, $2, $3)
+      RETURNING id, name, direction
+    `;
+
+    try {
+      const result = await pool.query(query, [
+        team.id,
+        team.name,
+        team.direction,
+      ]);
+      return result.rows[0];
+    } catch (error) {
+      console.error("Error creating team:", error);
+      throw new Error("Failed to create team");
+    }
+  }
+
+  /**
+   * Update a team
+   */
+  static async updateTeam(
+    id: string,
+    updates: Partial<Omit<Team, "id">>
+  ): Promise<Team | null> {
+    const pool = getPool();
+
+    const fields = [];
+    const values = [];
+    let paramIndex = 1;
+
+    if (updates.name !== undefined) {
+      fields.push(`name = $${paramIndex++}`);
+      values.push(updates.name);
+    }
+
+    if (updates.direction !== undefined) {
+      fields.push(`direction = $${paramIndex++}`);
+      values.push(updates.direction);
+    }
+
+    if (fields.length === 0) {
+      return this.getTeamById(id);
+    }
+
+    values.push(id);
+    const query = `
+      UPDATE teams
+      SET ${fields.join(", ")}
+      WHERE id = $${paramIndex}
+      RETURNING id, name, direction
+    `;
+
+    try {
+      const result = await pool.query(query, values);
+      return result.rows[0] || null;
+    } catch (error) {
+      console.error("Error updating team:", error);
+      throw new Error("Failed to update team");
+    }
+  }
+
+  /**
+   * Delete a team
+   */
+  static async deleteTeam(id: string): Promise<boolean> {
+    const pool = getPool();
+    const query = `DELETE FROM teams WHERE id = $1`;
+
+    try {
+      const result = await pool.query(query, [id]);
+      return (result.rowCount ?? 0) > 0;
+    } catch (error) {
+      console.error("Error deleting team:", error);
+      throw new Error("Failed to delete team");
+    }
+  }
+
+  /**
+   * Get all directions
+   */
+  static async getDirections(): Promise<string[]> {
+    const pool = getPool();
+    const query = `
+      SELECT DISTINCT direction
+      FROM teams
+      ORDER BY direction
+    `;
+
+    try {
+      const result = await pool.query(query);
+      return result.rows.map((row) => row.direction);
+    } catch (error) {
+      console.error("Error fetching directions:", error);
+      throw new Error("Failed to fetch directions");
+    }
+  }
+}