Hi, I'm Chidiebere.I build products that scale.
I build secure, high-performance backends and the products around them payment rails, identity platforms, and the APIs that tie them together.
Chidiebere John
Fullstack Software Engineer
An engineer who ships not just writes code.
Full Stack Software Engineer with 4+ years building and supporting fintech and payment infrastructure across African and global markets backend (Java, Spring Boot, NestJS, Node.js), frontend (React, Angular), and the API integrations and databases that tie them together.
Recently focused on AI powered developer tools, intelligent documentation, and LLM integrations that boost operational efficiency and user experience.
- Role
- Full-Stack Engineer
- Stack
- React · TS · Node.js
- Focus
- Products that scale
- Based
- Lagos, Nigeria · Remote
Years shipping to production
Daily transactions processed
Faster API response times
Enterprise apps delivered
Where I've shipped.
Teams I've built with, and the products I helped move from idea to production.
- Mar 2025 – Present· Remote · Payment Infrastructure (Africa & Global)
Software Integration Engineer @ Passpoint
Building and supporting payment infrastructure powering collections, payouts, virtual accounts, cards, wallets and cross-border settlement across African and global corridors.
- Take merchants through the full integration lifecycle onboarding, sandbox testing and production go-live across multiple payment products and regions.
- Debug collections, payouts, virtual accounts, cards, wallets and mobile-money flows by analysing transaction logs, API requests and system behaviour.
- Author API docs, integration guides and Postman collections; support webhook setup, callback validation and transaction reconciliation.
NestJSSpring BootPostgreSQLWebhooksREST APIs - Jul 2023 – Apr 2025· Remote · Tech Solutions & Consulting
Fullstack Software Engineer @ Bambam Automation
Delivered custom full-stack web apps for healthcare, education and business clients, plus technology consulting and digital-transformation support.
- Shipped healthcare platforms (patient records, scheduling, billing, reporting) and education platforms (virtual learning, collaboration, progress tracking).
- Designed REST APIs, database schemas and responsive UIs across industries; modernised legacy apps through refactoring and performance work.
- Led training and mentorship on web development, architecture and API design; set up automated testing and deployment workflows.
ReactAngularNestJSSpring BootTypeScript - Apr 2024 – Jan 2025· Hybrid · Digital Identity Management
Fullstack Software Engineer @ Seamfix Limited
Built and scaled backend services and frontends for identity-verification and onboarding platforms handling high-traffic workloads.
- Built identity-verification workflows integrating biometric auth, document validation and third-party verification services.
- Improved performance with caching, query optimisation and efficient service architecture; added monitoring, logging and health checks.
- Implemented OAuth, role-based access control and data-protection best practices; shipped Angular/React/TypeScript frontends.
NestJSAngularReactTypeScriptOAuth - Jan 2023 – Mar 2023· Remote · High-Scale Lottery Gaming
Backend Software Engineer (Contract) @ Lo3re
Backend services for a high-scale lottery gaming platform with real-time event processing and secure payment flows.
- Reduced latency for real-time gameplay; built Jest unit and integration test suites for reliability.
- Integrated third-party payment gateways with secure transaction workflows, webhook handlers and reconciliation.
- Set up CI/CD pipelines with GitHub Actions and reusable integration modules for onboarding new providers.
Node.jsNestJSJestGitHub ActionsPayments - Nov 2021 – Dec 2022· Onsite · Lagos, Nigeria
Fullstack Software Engineer @ Byteworks Technology Solutions
Full-stack delivery across client and internal projects in an Agile environment, focused on maintainable, modular architectures.
- Built full-stack apps with React, Angular, Node.js, NestJS and PostgreSQL aligned to business requirements.
- Improved dev/deploy workflows through containerisation, automated testing and CI/CD; drove refactoring and modernisation.
- Established coding standards and best practices; authored technical docs and onboarding guides.
ReactAngularNestJSSpring BootPostgreSQL
What I can build for you.
From a single tricky feature to an entire product here's where I plug in.
Full-Stack Development
End-to-end product builds React/Angular frontends wired to NestJS, Node.js or Spring Boot backends, typed all the way through.
Payment Infrastructure
Collections, payouts, virtual accounts, cards and wallets built to reconcile cleanly and fail loudly under 1M+ daily transactions.
API Integrations
REST APIs, webhooks, OAuth and third-party integrations with the docs and Postman collections that make them easy to adopt.
Developer Experience
Clean architecture, strong typing, and tooling that lets teams move fast without compounding tech debt.
System Architecture
Data models, event-driven services (RabbitMQ) and deployment topology that stay fast and cheap as traffic grows.
Technical Consulting
From blank repo to production: architecture decisions, code review, and a second pair of senior eyes when it counts.
The toolkit.
Grouped by where it lives in the stack. Deep where it counts, broad enough to own a product end to end.
Backend
- Java
- Spring Boot
- NestJS
- Node.js
- Express
- C# / .NET
Frontend
- React
- Angular
- TypeScript
- Tailwind CSS
- Shadcn UI
- Vite
Data & Infra
- PostgreSQL
- MongoDB
- Redis
- Docker
- Kubernetes
- AWS
Practices & AI
- CI/CD · GitHub Actions
- RabbitMQ / Event-Driven
- LLM Integration
- System Design
Things I've shipped.
Real products with real users. A selection of recent builds each one live.
// more builds
SparkTap
Peer-to-peer solar marketplace sell excess power to neighbors via prepaid energy tokens.
HeadPhones Store
Audio-gear store with product filtering, reviews, and detailed specs.
GiveFlow
Donation platform browse causes, give securely, and track your giving.
The one-page version.
Prefer a document? Grab the full résumé roles, the products I've shipped and the stack behind them, ready to print or forward.
Everything on this site, distilled to a single page Chidiebere John's experience, the products shipped, and the stack behind them.
Let's build something.
Have a product, a role, or a hard problem? I read every message and reply within a day.
Prefer email or socials? Pick whatever's easiest I'm responsive everywhere.