diff --git a/routes/(apps)/admin/api/enseignements.ts b/routes/(apps)/admin/api/enseignements.ts
new file mode 100644
index 0000000..0f6c09d
--- /dev/null
+++ b/routes/(apps)/admin/api/enseignements.ts
@@ -0,0 +1,70 @@
+import { FreshContext, Handlers } from "$fresh/server.ts";
+import { db } from "$root/databases/db.ts";
+import { enseignements } from "$root/databases/schema.ts";
+import { AuthenticatedState } from "$root/defaults/interfaces.ts";
+import { and, eq } from "npm:drizzle-orm@0.45.2";
+
+const NOT_FOUND = new Response(
+  JSON.stringify({ error: "Ressource introuvable" }),
+  { status: 404, headers: { "content-type": "application/json" } },
+);
+
+const FORBIDDEN = new Response(null, { status: 403 });
+
+const CONFLICT = new Response(
+  JSON.stringify({ error: "Cet enseignement existe déjà." }),
+  { status: 409, headers: { "content-type": "application/json" } },
+);
+
+export const handler: Handlers<null, AuthenticatedState> = {
+  // #29 POST /enseignements
+  async POST(
+    request: Request,
+    context: FreshContext<AuthenticatedState>,
+  ): Promise<Response> {
+    if (context.state.session.eduPersonPrimaryAffiliation !== "employee") {
+      return FORBIDDEN;
+    }
+
+    const body: {
+      idProf: string;
+      idModule: string;
+      idPromo: string;
+    } = await request.json();
+
+    if (!body.idProf || !body.idModule || !body.idPromo) {
+      return new Response(null, { status: 400 });
+    }
+
+    // Check if enseignement already exists
+    const existing = await db
+      .select()
+      .from(enseignements)
+      .where(
+        and(
+          eq(enseignements.idProf, body.idProf),
+          eq(enseignements.idModule, body.idModule),
+          eq(enseignements.idPromo, body.idPromo),
+        ),
+      )
+      .then((rows) => rows[0] ?? null);
+
+    if (existing) {
+      return CONFLICT;
+    }
+
+    const [created] = await db
+      .insert(enseignements)
+      .values({
+        idProf: body.idProf,
+        idModule: body.idModule,
+        idPromo: body.idPromo,
+      })
+      .returning();
+
+    return new Response(JSON.stringify(created), {
+      status: 201,
+      headers: { "content-type": "application/json" },
+    });
+  },
+};
diff --git a/routes/(apps)/admin/api/enseignements/[idProf]_[idModule]_[idPromo].ts b/routes/(apps)/admin/api/enseignements/[idProf]_[idModule]_[idPromo].ts
new file mode 100644
index 0000000..30dbd8a
--- /dev/null
+++ b/routes/(apps)/admin/api/enseignements/[idProf]_[idModule]_[idPromo].ts
@@ -0,0 +1,75 @@
+import { FreshContext, Handlers } from "$fresh/server.ts";
+import { db } from "$root/databases/db.ts";
+import { enseignements } from "$root/databases/schema.ts";
+import { AuthenticatedState } from "$root/defaults/interfaces.ts";
+import { and, eq } from "npm:drizzle-orm@0.45.2";
+
+const NOT_FOUND = new Response(
+  JSON.stringify({ error: "Ressource introuvable" }),
+  { status: 404, headers: { "content-type": "application/json" } },
+);
+
+const FORBIDDEN = new Response(null, { status: 403 });
+
+export const handler: Handlers<null, AuthenticatedState> = {
+  // #30 GET /enseignements/{idProf}/{idModule}/{idPromo}
+  async GET(
+    _request: Request,
+    context: FreshContext<AuthenticatedState>,
+  ): Promise<Response> {
+    if (context.state.session.eduPersonPrimaryAffiliation !== "employee") {
+      return FORBIDDEN;
+    }
+
+    const idProf = context.params.idProf;
+    const idModule = context.params.idModule;
+    const idPromo = context.params.idPromo;
+
+    const enseignement = await db
+      .select()
+      .from(enseignements)
+      .where(
+        and(
+          eq(enseignements.idProf, idProf),
+          eq(enseignements.idModule, idModule),
+          eq(enseignements.idPromo, idPromo),
+        ),
+      )
+      .then((rows) => rows[0] ?? null);
+
+    if (!enseignement) return NOT_FOUND;
+
+    return new Response(JSON.stringify(enseignement), {
+      headers: { "content-type": "application/json" },
+    });
+  },
+
+  // #31 DELETE /enseignements/{idProf}/{idModule}/{idPromo}
+  async DELETE(
+    _request: Request,
+    context: FreshContext<AuthenticatedState>,
+  ): Promise<Response> {
+    if (context.state.session.eduPersonPrimaryAffiliation !== "employee") {
+      return FORBIDDEN;
+    }
+
+    const idProf = context.params.idProf;
+    const idModule = context.params.idModule;
+    const idPromo = context.params.idPromo;
+
+    const [deleted] = await db
+      .delete(enseignements)
+      .where(
+        and(
+          eq(enseignements.idProf, idProf),
+          eq(enseignements.idModule, idModule),
+          eq(enseignements.idPromo, idPromo),
+        ),
+      )
+      .returning();
+
+    if (!deleted) return NOT_FOUND;
+
+    return new Response(null, { status: 204 });
+  },
+};
diff --git a/tests/unit/enseignements_test.ts b/tests/unit/enseignements_test.ts
new file mode 100644
index 0000000..17bff52
--- /dev/null
+++ b/tests/unit/enseignements_test.ts
@@ -0,0 +1,197 @@
+import { assertEquals, assertExists } from "@std/assert";
+import { getFetchCalls, mockFetch, restoreFetch } from "../helpers/api_mock.ts";
+import { createMockDb } from "../helpers/db_mock.ts";
+import {
+  ERROR_CONFLICT,
+  ERROR_NOT_FOUND,
+  enseignements,
+  type Enseignement,
+} from "../helpers/fixtures.ts";
+
+Deno.test("enseignements - POST 201 creates new enseignement", async () => {
+  const newEnseignement: Enseignement = {
+    idProf: 1,
+    idModule: "JIN705C",
+    idPromo: "4AFISE25/26",
+  };
+
+  mockFetch({
+    "/enseignements": {
+      method: "POST",
+      status: 201,
+      body: newEnseignement,
+    },
+  });
+
+  try {
+    const res = await fetch("http://localhost/api/enseignements", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify(newEnseignement),
+    });
+    assertEquals(res.status, 201);
+    const data = await res.json();
+    assertEquals(data.idProf, 1);
+    assertEquals(data.idModule, "JIN705C");
+    assertEquals(data.idPromo, "4AFISE25/26");
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("enseignements - POST 409 conflict on duplicate", async () => {
+  mockFetch({
+    "/enseignements": {
+      method: "POST",
+      status: 409,
+      body: ERROR_CONFLICT,
+    },
+  });
+
+  try {
+    const res = await fetch("http://localhost/api/enseignements", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({
+        idProf: 1,
+        idModule: "JIN702C",
+        idPromo: "4AFISE25/26",
+      }),
+    });
+    assertEquals(res.status, 409);
+    const data = await res.json();
+    assertEquals(data.error, "Ressource déjà existante");
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test(
+  "enseignements - GET 200 returns enseignement by composite key",
+  async () => {
+    const enseignement = enseignements[0];
+    const path = "/enseignements/1/JIN702C/4AFISE25%2F26";
+
+    mockFetch({
+      [path]: {
+        status: 200,
+        body: enseignement,
+      },
+    });
+
+    try {
+      const res = await fetch(
+        "http://localhost/api/enseignements/1/JIN702C/4AFISE25%2F26",
+      );
+      assertEquals(res.status, 200);
+      const data = await res.json();
+      assertEquals(data.idProf, 1);
+      assertEquals(data.idModule, "JIN702C");
+      assertEquals(data.idPromo, "4AFISE25/26");
+    } finally {
+      restoreFetch();
+    }
+  },
+);
+
+Deno.test("enseignements - GET 404 when enseignement not found", async () => {
+  mockFetch({
+    "/enseignements/999/JIN999/UNKNOWN": {
+      status: 404,
+      body: ERROR_NOT_FOUND,
+    },
+  });
+
+  try {
+    const res = await fetch(
+      "http://localhost/api/enseignements/999/JIN999/UNKNOWN",
+    );
+    assertEquals(res.status, 404);
+    const data = await res.json();
+    assertEquals(data.error, "Ressource introuvable");
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("enseignements - DELETE 204 removes enseignement", async () => {
+  const path = "/enseignements/1/JIN702C/4AFISE25%2F26";
+
+  mockFetch({
+    [path]: {
+      method: "DELETE",
+      status: 204,
+    },
+  });
+
+  try {
+    const res = await fetch(
+      "http://localhost/api/enseignements/1/JIN702C/4AFISE25%2F26",
+      {
+        method: "DELETE",
+      },
+    );
+    assertEquals(res.status, 204);
+    assertEquals(res.body, null);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test(
+  "enseignements - DELETE 404 when enseignement not found",
+  async () => {
+    mockFetch({
+      "/enseignements/999/JIN999/UNKNOWN": {
+        method: "DELETE",
+        status: 404,
+        body: ERROR_NOT_FOUND,
+      },
+    });
+
+    try {
+      const res = await fetch(
+        "http://localhost/api/enseignements/999/JIN999/UNKNOWN",
+        {
+          method: "DELETE",
+        },
+      );
+      assertEquals(res.status, 404);
+      const data = await res.json();
+      assertEquals(data.error, "Ressource introuvable");
+    } finally {
+      restoreFetch();
+    }
+  },
+);
+
+Deno.test("enseignements - mockDb operations", () => {
+  const db = createMockDb({ tables: { enseignements: [...enseignements] } });
+
+  // Test findOne
+  const found = db.findOne<Enseignement>(
+    "enseignements",
+    (r) =>
+      r.idProf === 1 && r.idModule === "JIN702C" && r.idPromo === "4AFISE25/26",
+  );
+  assertExists(found);
+  assertEquals(found.idProf, 1);
+
+  // Test insert
+  const newEnseignement: Enseignement = {
+    idProf: 3,
+    idModule: "JIN705C",
+    idPromo: "4AFISE25/26",
+  };
+  db.insert("enseignements", newEnseignement);
+  assertEquals(db.getTable("enseignements").length, 4);
+
+  // Test deleteWhere
+  const deleted = db.deleteWhere<Enseignement>(
+    "enseignements",
+    (r) =>
+      r.idProf === 1 && r.idModule === "JIN702C" && r.idPromo === "4AFISE25/26",
+  );
+  assertEquals(deleted, 1);
+  assertEquals(db.getTable("enseignements").length, 3);
+});