Emmanuel Orunimighen

Backend Engineer with 5+ years of experience building high-performance, scalable web applications from the ground up. I specialize in the JavaScript ecosystem, utilizing React.js, Node.js, and TypeScript to create modular frontend architectures and robust backend systems. Beyond writing code, I have a proven track record of optimizing web performance and streamlining CI/CD pipelines to accelerate delivery cycles.

Senior Node.js Developer at Ronami AI (2025-09 – 2026-01)

Teddi App – Privacy-first medical appointment assistant

• Integrated PostgreSQL using Prisma ORM, optimising database operations and enhancing data querying through efficient schema design and advanced SQL querying.
• Provisioned and maintained a PostgreSQL RDS setup on AWS, enhancing database reliability, performance, and scalability for production workloads.
• Utilised AsyncLocalStorage to manage app sessions, eliminating race conditions and improving user session consistency across concurrent requests with the help of Supabase Auth session.
• Deployed the backend to AWS using EC2, PM2, Docker, Nginx, and ALB, with Auto Scaling Groups for scalability. Automated deployments with GitHub Actions for efficient CI/CD and secure production releases.

Senior Node.js Developer at Fanful (2023-10 – 2025-07)

Fanful App – Social Hub for Sports Fans

• Integrated MongoDB using Mongoose, optimising database operations and enhancing data querying through advanced MongoDB aggregation, which improved app response time by 50%
• Engineered and integrated webhooks for in-app subscriptions on iOS and Android platforms, enabling real-time updates and seamless billing experiences.
• Utilised AsyncLocalStorage to manage app sessions, eliminating race conditions and improving user session consistency across concurrent requests.
• Built and maintained a cron job service for key automation tasks: - Automatically start and close raffles, compute and determine winners. - Schedule and send real-time notifications to users at precise times.
• Deployed the backend to AWS using EC2, PM2, Docker, Nginx, and ALB, with Auto Scaling Groups for scalability. Automated deployments with GitHub Actions for efficient CI/CD and secure production releases.

Node.js Developer at Tropolin Labs Private Limited (2023-07 – 2023-10)

Sixteen App – Productivity & Social Challenge Tracker

• Engineered and integrated webhooks for in-app subscriptions on the iOS platform, enabling real-time updates and seamless billing experiences.
• Designed and implemented a cron job service to automate challenge lifecycle management — including start/end logic and win/loss determination.
• Integrated MongoDB seamlessly into the application using Mongoose, enabling efficient schema design and data handling.
• Maintained clean and collaborative development workflows with Git and GitHub, contributing to high team productivity.
• Deployed the backend to Heroku using Docker, Git, and Heroku Pipelines, with Auto-Scaling and Load Balancer for scalability. Automated CI/CD with GitHub Actions for secure production releases.

Node.Js Developer at Evarfinace (2022-11 – 2023-07)

Evarfinance – Cross-Border Crypto Payment Platform

• Designed and developed the company's core application using Node.js, TypeScript, and Express.js, delivering a scalable backend architecture.
• Reduced memory usage by 50% by replacing Google Drive with ImageKit, significantly improving image storage and retrieval efficiency.
• Seamlessly integrated MongoDB with Mongoose, leveraging advanced aggregation techniques to enhance data querying and boost application response time by 30%.
• Developed a comprehensive testing suite: Unit testing with Jest to ensure code reliability. Integration testing using Supertest to validate end-to-end functionality across APIs.

B.Eng in Electrical/Electronics Engineering – Niger Delta University

Diploma in Software Engineering – Decagon Training Institute