diff --git a/api/opportunities.ts b/api/opportunities.ts
new file mode 100644
index 00000000..82361804
--- /dev/null
+++ b/api/opportunities.ts
@@ -0,0 +1,320 @@
+import { createClient } from "@supabase/supabase-js";
+
+const supabaseUrl = process.env.VITE_SUPABASE_URL || "";
+const supabaseServiceRole = process.env.SUPABASE_SERVICE_ROLE || "";
+
+const supabase = createClient(supabaseUrl, supabaseServiceRole);
+
+export async function getOpportunities(req: Request) {
+  const url = new URL(req.url);
+  const arm = url.searchParams.get("arm");
+  const page = parseInt(url.searchParams.get("page") || "1");
+  const limit = parseInt(url.searchParams.get("limit") || "20");
+  const sort = url.searchParams.get("sort") || "recent";
+  const search = url.searchParams.get("search");
+  const jobType = url.searchParams.get("jobType");
+  const experienceLevel = url.searchParams.get("experienceLevel");
+
+  try {
+    let query = supabase
+      .from("aethex_opportunities")
+      .select(
+        `
+        id,
+        title,
+        description,
+        job_type,
+        salary_min,
+        salary_max,
+        experience_level,
+        arm_affiliation,
+        posted_by_id,
+        aethex_creators!aethex_opportunities_posted_by_id_fkey(username, avatar_url),
+        status,
+        created_at,
+        aethex_applications(count)
+      `,
+        { count: "exact" }
+      )
+      .eq("status", "open");
+
+    if (arm) {
+      query = query.eq("arm_affiliation", arm);
+    }
+
+    if (search) {
+      query = query.or(
+        `title.ilike.%${search}%,description.ilike.%${search}%`
+      );
+    }
+
+    if (jobType) {
+      query = query.eq("job_type", jobType);
+    }
+
+    if (experienceLevel) {
+      query = query.eq("experience_level", experienceLevel);
+    }
+
+    // Sort by parameter
+    const ascending = sort === "oldest";
+    query = query.order("created_at", { ascending });
+
+    const start = (page - 1) * limit;
+    query = query.range(start, start + limit - 1);
+
+    const { data, error, count } = await query;
+
+    if (error) throw error;
+
+    return new Response(
+      JSON.stringify({
+        data,
+        pagination: {
+          page,
+          limit,
+          total: count || 0,
+          pages: Math.ceil((count || 0) / limit),
+        },
+      }),
+      {
+        status: 200,
+        headers: { "Content-Type": "application/json" },
+      }
+    );
+  } catch (error) {
+    console.error("Error fetching opportunities:", error);
+    return new Response(
+      JSON.stringify({ error: "Failed to fetch opportunities" }),
+      { status: 500, headers: { "Content-Type": "application/json" } }
+    );
+  }
+}
+
+export async function getOpportunityById(opportunityId: string) {
+  try {
+    const { data, error } = await supabase
+      .from("aethex_opportunities")
+      .select(
+        `
+        id,
+        title,
+        description,
+        job_type,
+        salary_min,
+        salary_max,
+        experience_level,
+        arm_affiliation,
+        posted_by_id,
+        aethex_creators!aethex_opportunities_posted_by_id_fkey(id, username, bio, avatar_url),
+        status,
+        created_at,
+        updated_at,
+        aethex_applications(count)
+      `
+      )
+      .eq("id", opportunityId)
+      .eq("status", "open")
+      .single();
+
+    if (error) throw error;
+
+    return data;
+  } catch (error) {
+    console.error("Error fetching opportunity:", error);
+    return null;
+  }
+}
+
+export async function createOpportunity(
+  req: Request,
+  userId: string
+) {
+  try {
+    const body = await req.json();
+    const {
+      title,
+      description,
+      job_type,
+      salary_min,
+      salary_max,
+      experience_level,
+      arm_affiliation,
+    } = body;
+
+    // Get the creator ID for this user
+    const { data: creator } = await supabase
+      .from("aethex_creators")
+      .select("id")
+      .eq("user_id", userId)
+      .single();
+
+    if (!creator) {
+      return new Response(
+        JSON.stringify({ error: "Creator profile not found. Create profile first." }),
+        { status: 404, headers: { "Content-Type": "application/json" } }
+      );
+    }
+
+    const { data, error } = await supabase
+      .from("aethex_opportunities")
+      .insert({
+        title,
+        description,
+        job_type,
+        salary_min,
+        salary_max,
+        experience_level,
+        arm_affiliation,
+        posted_by_id: creator.id,
+        status: "open",
+      })
+      .select()
+      .single();
+
+    if (error) throw error;
+
+    return new Response(JSON.stringify(data), {
+      status: 201,
+      headers: { "Content-Type": "application/json" },
+    });
+  } catch (error) {
+    console.error("Error creating opportunity:", error);
+    return new Response(
+      JSON.stringify({ error: "Failed to create opportunity" }),
+      { status: 500, headers: { "Content-Type": "application/json" } }
+    );
+  }
+}
+
+export async function updateOpportunity(
+  req: Request,
+  opportunityId: string,
+  userId: string
+) {
+  try {
+    const body = await req.json();
+    const {
+      title,
+      description,
+      job_type,
+      salary_min,
+      salary_max,
+      experience_level,
+      status,
+    } = body;
+
+    // Verify user owns this opportunity
+    const { data: opportunity } = await supabase
+      .from("aethex_opportunities")
+      .select("posted_by_id")
+      .eq("id", opportunityId)
+      .single();
+
+    if (!opportunity) {
+      return new Response(
+        JSON.stringify({ error: "Opportunity not found" }),
+        { status: 404, headers: { "Content-Type": "application/json" } }
+      );
+    }
+
+    const { data: creator } = await supabase
+      .from("aethex_creators")
+      .select("id")
+      .eq("user_id", userId)
+      .single();
+
+    if (creator?.id !== opportunity.posted_by_id) {
+      return new Response(
+        JSON.stringify({ error: "Unauthorized" }),
+        { status: 403, headers: { "Content-Type": "application/json" } }
+      );
+    }
+
+    const { data, error } = await supabase
+      .from("aethex_opportunities")
+      .update({
+        title,
+        description,
+        job_type,
+        salary_min,
+        salary_max,
+        experience_level,
+        status,
+        updated_at: new Date().toISOString(),
+      })
+      .eq("id", opportunityId)
+      .select()
+      .single();
+
+    if (error) throw error;
+
+    return new Response(JSON.stringify(data), {
+      status: 200,
+      headers: { "Content-Type": "application/json" },
+    });
+  } catch (error) {
+    console.error("Error updating opportunity:", error);
+    return new Response(
+      JSON.stringify({ error: "Failed to update opportunity" }),
+      { status: 500, headers: { "Content-Type": "application/json" } }
+    );
+  }
+}
+
+export async function closeOpportunity(
+  opportunityId: string,
+  userId: string
+) {
+  try {
+    // Verify user owns this opportunity
+    const { data: opportunity } = await supabase
+      .from("aethex_opportunities")
+      .select("posted_by_id")
+      .eq("id", opportunityId)
+      .single();
+
+    if (!opportunity) {
+      return new Response(
+        JSON.stringify({ error: "Opportunity not found" }),
+        { status: 404, headers: { "Content-Type": "application/json" } }
+      );
+    }
+
+    const { data: creator } = await supabase
+      .from("aethex_creators")
+      .select("id")
+      .eq("user_id", userId)
+      .single();
+
+    if (creator?.id !== opportunity.posted_by_id) {
+      return new Response(
+        JSON.stringify({ error: "Unauthorized" }),
+        { status: 403, headers: { "Content-Type": "application/json" } }
+      );
+    }
+
+    const { data, error } = await supabase
+      .from("aethex_opportunities")
+      .update({
+        status: "closed",
+        updated_at: new Date().toISOString(),
+      })
+      .eq("id", opportunityId)
+      .select()
+      .single();
+
+    if (error) throw error;
+
+    return new Response(JSON.stringify(data), {
+      status: 200,
+      headers: { "Content-Type": "application/json" },
+    });
+  } catch (error) {
+    console.error("Error closing opportunity:", error);
+    return new Response(
+      JSON.stringify({ error: "Failed to close opportunity" }),
+      { status: 500, headers: { "Content-Type": "application/json" } }
+    );
+  }
+}