“The task was to rebuild a brand-sensitive AI-powered website that needed attention to detail and focused precision to match the reference. Clean code, fast delivery, and a very flexible and agile mentality. Perfect for AI coding work.”
Available for selected projectsAI & Full-Stack Engineer
Olaniran Femi · FemiSaint
Olaniran Oluwafemi
Building intelligent products, APIs, and production-ready systems.
I help startups and growing teams turn ideas into production-ready software: high-converting websites, scalable web apps, configurators, AI features, and AI automation wired into your site and ops.
Hire Olaniran Oluwafemi — also known as Olaniran Femi and FemiSaint — for Next.js websites, web apps, AI automation, and production systems from Osogbo, Nigeria (remote).
- Available for Freelance
- Fast Delivery
- Production-Ready Code
- AI Automation Ready
Dashboard online
1 / 4
Analytics live
Users
+12%
Latency
48ms
Sessions
syncing
AI coding · 24k ops
Olaniran Oluwafemi
Osogbo, Nigeria · Remote
Production path
AI
USERNEXT.JSAPI
SUPABASEAIPAYMENTS
Zumelia-style stack pattern — illustrated, not a live infra probe
Next.js◆React◆TypeScript◆Node.js◆Tailwind CSS◆AI / LLM◆AI Automation◆n8n / Make◆Next.js◆React◆TypeScript◆Node.js◆Tailwind CSS◆AI / LLM◆AI Automation◆n8n / Make◆
0+
Live projects
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Service areas
Same day
Response time
Open
About Olaniran Oluwafemi
Who is Olaniran Oluwafemi (FemiSaint)?
I'm Olaniran Oluwafemi (also Olaniran Femi / FemiSaint) — a full-stack developer and AI engineer building software that creates real business value.
Services
What I offer — websites, apps & AI
If you need a Next.js site, SaaS MVP, AI assistant, WhatsApp automation, or product configurator, Olaniran Oluwafemi (FemiSaint) builds end-to-end — from Osogbo, Nigeria, remote worldwide.
Case studies
Featured projects
Production-minded builds engineered for clarity, performance, and outcomes.
Proof
Delivered work, verified
Client reviews and live builds you can open — including a 5.0 Fiverr review for AI coding.
“The Lumière Atelier configurator is live — model picker, photoreal / 3D studio modes, and option flows clients can open and verify.”
“FemiSaint Stew / DelishBites is a full marketing site for stews and grills — hero, menu storytelling, and order CTAs in production.”
“The book marketing portfolio ships covers, samples, strategies, and contact — authors can browse the work and start a conversation.”
Engineering
Interactive engineering portfolio
Lab experiments, a grounded AI assistant, API playground, and production practices — built to demonstrate real systems thinking.
Why clients choose me
Built for real business outcomes
Fast performance
Optimized for speed, Core Web Vitals, and smooth interactions.
Secure by default
Auth, validation, and production hardening baked into the build.
Responsive craft
Interfaces that feel intentional on desktop, tablet, and mobile.
Scalable architecture
Clean systems you can grow — not throwaway prototypes.
Process
How projects move
01
Scope
Goals, users, constraints, and the AI opportunities that actually matter.
02
Architect
Stack, data model, and feature slices so we ship useful software — not vapor.
03
Build
AI-accelerated development with human review on UX, security, and edge cases.
04
Launch
Deploy, document, and iterate from real usage.
Currently learning
Continuous technical growth
built
AI engineering
Grounded assistants, streaming UX, and provider-agnostic adapters.
experimenting
RAG
Structured retrieval first; vector search designed as a later upgrade.
learning
MCP
Tool contracts for agents — planned experiments in the Lab.
learning
AI agents
Constrained tool use over unconstrained chat loops.
production experience
Webhooks
Signature verification and idempotency (Zumelia payments context).
experimenting
System design
Clear service boundaries: auth, storage, payments, realtime, AI.
production experience
PostgreSQL (via Supabase)
Used in Zumelia; portfolio itself remains static TS data.
learning
Redis
Exploring for rate limits and caching beyond in-memory maps.
Ready to build?
Let's turn your idea into a clear, scalable product.
Book a consultation or share the goal and timeline — I'll reply with a practical next step.