Nnenna Ezidiegwu

FullStack Developer with production experience shipping financial systems end to end. Currently building live backend infrastructure at a fintech, including a bank-facing virtual account integration with FirstBank and a same-day rebuild of a critical electricity-billing integration after a third-party provider failure. Strong in Java, Spring Boot, and PostgreSQL, with working knowledge of microservices, messaging (RabbitMQ), caching (Redis), and distributed tracing (Zipkin).

Also ships production React/TypeScript frontends, giving full-stack ownership from schema design to deployed UI. Comfortable working asynchronously and independently across distributed, cross-timezone teams.

Backend Developer at Xpress Payments Solutions Limited (2026-01 – Present)

• Owned a production incident end to end: independently designed and shipped the replacement integration for various electric bill payments from API design through provider communication, testing, and deployment restoring service with zero customer disruption.
• Leading a bank-facing integration: building a stateless Spring Boot middleware service that authenticates with FirstBank, manages virtual account reservations, and transforms/forwards payment callbacks to the central notification system; currently in active testing with FirstBank's technical team.
• Shipped a third-party notification integration independently, improving transactional communication reliability across a live payment platform.
• Work daily with regulated financial data: relational schemas and transactional flows, with close attention to data consistency and error handling across interdependent services.

Lead Frontend Developer (Contract) at Emmounts Technologies (2025-06 – 2025-11)

• Led frontend delivery across multiple concurrent client projects, owning technical decisions from architecture through production deployment.
• Built a reusable component library that cut repeated development work by roughly a third, measured by feature delivery speed after adoption.
• Maintained documentation and project tracking throughout delivery, reducing miscommunication between design, engineering, and client stakeholders.

Frontend Developer at Foretrust Digital Consulting Limited (2023-08 – 2025-04)

• Diagnosed and fixed a performance bottleneck in data fetching and rendering, cutting load times by close to a third based on before/after measurement.
• Supported bug tracking, QA, and documentation, contributing to cleaner and faster release cycles.

B.Eng in Electronics & Computer Engineering – Nnamdi Azikiwe University, Awka (2019-11 – 2024-11)