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Elijah Peter

@elijahpeter

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Senior Full Stack Engineer at Tenyne who cut failed wallet withdrawals by 50% and builds fintech and banking systems.

Nigeria

Message

At Tenyne, I own end-to-end delivery for a Node.js and TypeScript fintech platform, from technical design and API design through deployment and production support. I designed and shipped a multi-phase wallet and withdrawal system that cut failed withdrawal attempts by 50%.

I contributed to the wallet ledger design and hardened authentication, PIN, and RBAC flows after a security review. By improving caching, queries, and indexing across PostgreSQL and MongoDB, I reduced API response times by 75%.

At Kiyapz, I built and maintained backend services in Node.js and Django, improving transaction reliability by about 40% through changes to asynchronous processing, error handling, and retries. I’m also building BANK-LEDGER API, a core banking ledger project using Java, Spring Boot, and PostgreSQL.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

Tenyne

Jun 2025 - Present (1 year 4 months)

Owns end-to-end delivery on a Node.js, TypeScript and microservices fintech platform, from technical design and API design to database schema, deployment and monitoring. Designed and shipped a multi-phase wallet and withdrawal system, cutting failed withdrawal attempts by 50% and reducing API response times by 75% through Redis caching and query optimization.

NodeJS TypeScript React PostgreSQL MongoDB Redis Docker Nginx CI CD Jest Microservices REST APIs Feature Flags Security RBAC PIN Hardening Code Review

Software Engineer

Kiyapz

Feb 2022 - Jan 2025 (2 years 11 months)

Built and maintained business-critical backend services in Node.js and Django for production applications serving tens of thousands of users. Improved transaction reliability by about 40% by redesigning asynchronous processing, error handling and retry strategies.

NodeJS Django REST APIs Asynchronous Processing Error Handling Retry Strategies Database Optimization Caching Agile

Education

Degrees, certifications, and relevant coursework

IBM

Professional Certificate, Full Stack Development

Completed the IBM Full Stack Software Developer Professional Certificate on Coursera, covering full stack development with React and Node.js, cloud application development with Docker, DevOps fundamentals, and software engineering practices.