I write application code and own what happens after it ships - VPS provisioning, Nginx, deployment pipelines, SSL, firewall hardening, monitoring, production incidents. Most developers stop at the application layer. I don't.

Four years across AI, EdTech, logistics, and service marketplaces. Independent architecture decisions, full codebase migrations, GPT-4o system prompts for shipped product features, junior developers directed - as the sole or lead technical decision-maker, not a staff engineer inside a large org.

Backend  -  REST APIs with Node.js · Express · TypeScript. Structured for maintainability from day one.

Frontend  -  React and Next.js. Design systems that hold together across the full UI.

Databases  -  PostgreSQL and MongoDB, modelled around the domain and optimised around real access patterns. Redis for the hot paths.

Infrastructure  -  VPS provisioning, Nginx reverse proxy, SSL/TLS, fail2ban, SSH hardening, DNS, Sentry, zero-downtime deployments. Owned end-to-end.

AI features  -  GPT-4o integrations with production-grade system prompt design. Shipped in two separate products.

Payments  -  Paystack and Flutterwave with webhook validation, idempotency keys, escrow flows, and race condition handling.

Servyst  ·  servyst.com  ·  AI-powered local service marketplace - full ownership

Built the entire stack from scratch. Provider dashboards, customer marketplace, booking and payment flow with Paystack escrow - payment held until work is confirmed complete, then released. Dispute resolution. AI-driven provider matching via GPT-4o (scored on service type, location, and profile data). Provisioned and hardened the production VPS. Sole technical decision-maker.

Node.js  ·  Next.js  ·  TypeScript  ·  PostgreSQL  ·  Redis
Styled Components  ·  Paystack  ·  GPT-4o  ·  Nginx

TRIIBE  ·  EdTech platform - technical lead · 150+ active users · 268 job listings

Joined when the product was a static HTML/CSS site. Made the decision to migrate to MERN, then led the full rebuild - social engine, course management, job board, student progress tracking, multi-role dashboards for students, recruiters, and admins. Cloudinary configured with signed server-side upload URLs so files go directly to storage, bypassing the Node.js server entirely. Provisioned and hardened a Contabo VPS from scratch. Directed one junior developer throughout.

Node.js  ·  React  ·  MongoDB  ·  Redis  ·  Flutterwave  ·  Paystack
Cloudinary  ·  Sentry  ·  Zoho Cliq  ·  Nginx  ·  Contabo VPS

Kriwheel  ·  kriwheel.com  ·  Nigerian tricycle rider community and safety platform

Full-stack ownership: Next.js frontend, Node.js/PostgreSQL backend, admin dashboard, and mobile-optimised rider UI with real-time safety incident reporting.

Next.js  ·  TypeScript  ·  Node.js  ·  PostgreSQL

LoubbyAI  ·  AI-powered career platform - contract

Three concurrent product streams: an AI resume analyser scoring resume-to-job match strength via GPT-4o with specific weakness surfacing; a resume editor with inline AI suggestions behind a payment gate; and a guided builder for users with no existing document. Also owned the frontend for a school leavers job board and the full onboarding flow (registration, OAuth, OTP, profile) for an agent marketplace.

React  ·  Next.js  ·  Node.js  ·  GPT-4o  ·  PostgreSQL

Most engineers stop at the application boundary. This is what I configure and maintain:

VPS provisioning              Contabo, Hostinger
Nginx                         Reverse proxy, SSL/TLS termination
Firewall                      All non-Nginx-facing ports blocked
SSH hardening                 Root login disabled, password auth disabled
fail2ban                      Installed and configured
DNS                           Configuration and ongoing management
PM2                           Process management, zero-downtime deploys
Sentry                        Error monitoring and alerting
Redis                         Caching for high-frequency read paths
Search Console                Page-level SEO, analytics setup
Production incidents          Monitored and resolved independently

Production engineering - decisions made under real constraints. Not tutorials. Things that happened.

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Building Servyst - AI-powered local service marketplace for the Nigerian market. Available for senior full-stack and backend roles, remote.