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I am a backend engineer with a strong foundation in building scalable, distributed systems and real-time applications using Node.js, NestJS, and WebSockets. I have experience in gRPC microservices, CI/CD pipelines, and API design across gaming, fintech, and e-commerce sectors. I am passionate about clean architecture, DevOps culture, and delivering working solutions. My journey has taken me through diverse roles where I have led system refactors, optimized performance, and integrated secure, scalable backend services. I enjoy working on projects that challenge me to improve efficiency and stability while using modern technologies and tools.…I am a backend engineer with a strong foundation in building scalable, distributed systems and real-time applications using Node.js, NestJS, and WebSockets. I have experience in gRPC microservices, CI/CD pipelines, and API design across gaming, fintech, and e-commerce sectors. I am passionate about clean architecture, DevOps culture, and delivering working solutions. My journey has taken me through diverse roles where I have led system refactors, optimized performance, and integrated secure, scalable backend services. I enjoy working on projects that challenge me to improve efficiency and stability while using modern technologies and tools.

David Arinze B

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I am a backend engineer with a strong foundation in building scalable, distributed systems and real-time applications using Node.js, NestJS, and WebSockets. I have experience in gRPC microservices, CI/CD pipelines, and API design across gaming, fintech, and e-commerce sectors. I am passionate about clean architecture, DevOps culture, and delivering working solutions. My journey has taken me through diverse roles where I have led system refactors, optimized performance, and integrated secure, scalable backend services. I enjoy working on projects that challenge me to improve efficiency and stability while using modern technologies and tools.…I am a backend engineer with a strong foundation in building scalable, distributed systems and real-time applications using Node.js, NestJS, and WebSockets. I have experience in gRPC microservices, CI/CD pipelines, and API design across gaming, fintech, and e-commerce sectors. I am passionate about clean architecture, DevOps culture, and delivering working solutions. My journey has taken me through diverse roles where I have led system refactors, optimized performance, and integrated secure, scalable backend services. I enjoy working on projects that challenge me to improve efficiency and stability while using modern technologies and tools.

Available to hire

I am a backend engineer with a strong foundation in building scalable, distributed systems and real-time applications using Node.js, NestJS, and WebSockets. I have experience in gRPC microservices, CI/CD pipelines, and API design across gaming, fintech, and e-commerce sectors. I am passionate about clean architecture, DevOps culture, and delivering working solutions.

My journey has taken me through diverse roles where I have led system refactors, optimized performance, and integrated secure, scalable backend services. I enjoy working on projects that challenge me to improve efficiency and stability while using modern technologies and tools.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Backend Engineer at Eulav

June 30, 2025 - August 31, 2025

Led KYC system refactor by integrating Dojah to support NIN, BVN, and address verification. Migrated legacy MySQL tables to a unified user_kycs schema using Prisma. Improved backend maintainability by 30% through reduction of technical debt in legacy services. Developed and containerized services with Docker and supported ongoing Kubernetes onboarding.

Backend Engineer at Lordwin Group

January 1, 2025 - Present

Developing scalable gRPC-based APIs and microservices using Node.js and NestJS to power high-performance applications. Building and maintaining CI/CD pipelines to streamline testing, integration, and deployment. Optimizing microservices for performance, scalability, and reliability ensuring seamless system operations. Troubleshooting and enhancing existing systems to improve efficiency, reduce downtime, and enhance overall stability.

Full Stack Developer at Guru Systems Technology

January 31, 2025 - August 31, 2025

Built and maintained reusable React components utilizing Chakra UI to ensure a cohesive design system across the application. Migrated frontend from Adonis.js x Inertia.js x React to Next.js, optimizing performance and workflows. Developed secure backend services using NestJS with JWT and bcrypt for authentication and authorization. Integrated third-party APIs to enhance features and improve user experience.

Game Backend Engineer at Axxon Network Inc

September 30, 2024 - August 31, 2025

Designed and managed databases to store game-related data such as player profiles, game progress, in-game items, and leaderboards. Built and maintained APIs to facilitate communication between the game client and server. Designed WebSocket-based real-time communication systems with secure player authentication. Optimized backend systems achieving a 25% improvement in performance and effectively handled concurrent users.

Software Engineer at Decagon Institute, Lagos

October 3, 2023 - March 1, 2024

Managed projects with Node.js, React.js, and JavaScript. Optimized databases resulting in a 20% improvement in query performance with strategic indexing and query optimization techniques. Designed reusable React components styled with CSS. Contributed to a 20% faster turnaround time for frontend development tasks.

Front End Intern at Flexis Afedusoft Ltd, Abuja

October 8, 2018 - February 4, 2019

Designed reusable React components styled with CSS. Managed state and HTTP requests with React hooks and Axios. Gained exposure to agile methodologies. Completed numerous frontend design challenges on Frontend Mentor and deployed via Vercel.

IT Intern at Corporate Affairs Commission, Abuja

February 28, 2019 - August 31, 2025

Performed daily system checks for hardware/software issues and reported to supervisors. Built a landing page for the commission and implemented authentication using passport.js. Learned basics of networks and server-side development.