I will build and optimize supabase API serverless functions and backend logic


About this gig
I build Supabase, first backends that turn ideas into production ready, serverless APIs fast, secure, and scalable. I design and implement Edge Functions / serverless endpoints, integrate Supabase Auth and Postgres with robust RLS policies, and write optimized SQL and transactions for low-latency data access. My services include API endpoint development, input validation, JWT handling, role-based access control, schema migrations, stored procedures, realtime subscriptions, webhooks and third-party integrations (payments, email, external APIs), unit/integration testing, CI/CD deployment, monitoring, and clear API documentation. I code in TypeScript/JavaScript, use the Supabase JS client or direct SQL for performance, and deliver migration scripts, Postman/Insomnia collections, and deployment instructions or direct project deployment. Keywords: Supabase, Edge Functions, serverless API, Postgres, RLS, Auth, TypeScript, realtime, webhooks, migrations, SQL optimization, CI/CD, secure backend. Ready to ship a reliable Supabase backend? Send your project brief (data model, endpoints, auth rules) and Ill reply with a tailored plan and estimate within 24 hours.
Get to know Funmi
NoCode Expert
- FromNigeria
- Member sinceMay 2026
Languages
English, Italian, French, Spanish
FAQ
What exactly do you build with Supabase Edge Functions and backend logic?
I implement production ready serverless API endpoints (Edge Functions), database logic (optimized SQL, transactions), Supabase Auth integration, RLS policies, schema migrations, realtime subscriptions, webhooks, third party.
Which languages and runtimes do you use?
I primarily code in TypeScript or JavaScript and target Supabase Edge Functions (Deno/Edge runtime) or Node-style serverless handlers depending on your project needs. I use the Supabase JS client or direct SQL for performance-critical queries.
Can you work on an existing Supabase project or only start new ones?
Yes. I can connect to your existing Supabase project, add Edge Functions, apply migrations safely, and update RLS policies. I follow a safe workflow: review current schema and policies, create migration scripts, and deploy chang
How do you handle authentication and access control?
I integrate Supabase Auth, implement JWT handling, and design role-based access control with Row Level Security (RLS) policies. I follow a security first approach: least privilege queries, input validation, and token verification to prevent access.
What about database migrations and schema changes?
I provide SQL migration scripts (idempotent where possible) and clear instructions for applying them. For complex changes I recommend a staging run, automated tests, and a rollback plan to ensure zero downtime deployments.
Do you write tests and documentation?
Do you write tests and documentation? Yes. I deliver unit and integration tests for critical endpoints, example requests, and concise API documentation. Optional extras include Postman/Insomnia collections, code comments, and a short developer handoff guide.
How do you ensure performance and scalability?
I optimize queries, add appropriate indexes, batch or paginate results, and design endpoints to minimize round trips. For realtime or high-throughput use cases I leverage Supabase Realtime and event-driven patterns to scale efficiently.
Can you integrate third-party services like payments, email, or external APIs?
Can you integrate third-party services like payments, email, or external APIs? Absolutely. I implement secure webhooks, background jobs, and integrations with payment gateways, email providers, and external APIs. I include retry logic, idempotency where needed, and secrets management best practic
What is the typical delivery time and revision policy?
Delivery depends on scope: single function in 2–4 days, multi-endpoint API in 4–10 days, and full backend builds in 1–3 weeks. Each package includes a set number of revisions (usually 1–3) to refine functionality and fix issues after your review.
How do we get started and what do you need from me?
Send a brief with your data model, desired endpoints, auth rules, and any integrations. I’ll reply with a tailored plan, timeline, and estimate within 24 hours. If you prefer, include access to a staging Supabase project for direct deployment and testing.

