Nnenna Ezidiegwu

Full Stack Developer

Actively looking · Member since 12 Sep 2026

Message

Location: Ikoyi, Nigeria

Desired salary: Confidential

Work preference: Remote Only / Full Time, Part Time, Contract, Freelance, Internship, Temporary

Experience level: Mid

About

Professional summary

I am a Full Stack Developer with production experience building and shipping financial systems end to end. My strongest backend technologies are Java, Spring Boot, PostgreSQL, Hibernate/JPA, and REST API design.

I currently build live backend infrastructure for a fintech, working on regulated financial data, transactional flows, virtual accounts, payment callbacks, and third-party service integrations. I focus on data consistency, error handling, reliability, and clean service boundaries.

I have independently handled critical production work, including rebuilding an electricity-billing integration after a provider failure and restoring service without customer disruption. I am also developing a bank-facing middleware service for FirstBank virtual-account reservations and payment notifications.

On the frontend, I build production React and TypeScript applications, including dashboards, e-commerce platforms, and payment products. This full-stack background allows me to take ownership from database schema design and API development through responsive user interfaces and deployment.

I am comfortable with microservices, RabbitMQ, Redis, distributed tracing, Docker, CI/CD tooling, and cloud deployment platforms. I work effectively independently and asynchronously across distributed, cross-timezone teams.

I am open to remote opportunities where I can contribute to reliable, scalable backend or full-stack products, particularly in fintech, payments, and data-driven applications.

Notice period: Immediately

Tech stack & tools

Working toolkit

Experience

Career history

Backend Developer Xpress Payments Solutions Limited

Jan 2026 – Present

Develop and maintain production backend infrastructure for a fintech payment platform, working with regulated financial data, relational schemas, transactional flows, data consistency, and error handling across interdependent services.

Independently designed and shipped a replacement electricity-bill payment integration following a third-party provider failure, covering API design, provider communication, testing, and deployment with no customer disruption. Building a stateless Spring Boot middleware integration with FirstBank for virtual account reservations and payment callbacks, and delivered a third-party notification integration to improve transactional communication reliability.

Lead Frontend Developer (Contract) Emmounts Technologies

Jun 2025 – Nov 2025

Led frontend delivery across multiple concurrent client projects, taking ownership of technical decisions from application architecture through production deployment.

Built a reusable component library that reduced repeated development work by roughly one-third based on feature delivery speed after adoption. Maintained documentation and project tracking to improve communication among design, engineering, and client stakeholders.

Frontend Developer Foretrust Digital Consulting Limited

Aug 2023 – Apr 2025

Developed frontend functionality and contributed to bug tracking, QA activities, and documentation for cleaner and faster release cycles.

Diagnosed and resolved a data-fetching and rendering performance bottleneck, reducing application load times by close to one-third based on before-and-after measurement.