Kelechi Ebiri

Backend-focused software engineer with a strong interest in systems, infrastructure, and building reliable products that scale. I spend most of my time working close to the backend designing APIs, reasoning about performance, and understanding how things actually work under the hood.

I enjoy problems where correctness, simplicity, and long-term maintainability matter more than hype.

Focus areas

• Backend engineering (APIs, services, data modeling)
• Systems & performance thinking
• Databases and internals (PostgreSQL, pagination, consistency, tooling)
• Open-source contribution and reading real-world codebases
• Building products for practical, underserved markets (e.g. Nigeria-focused infra & fintech ideas)
• RAG
• Vector databases

Tech stack & tools

Languages

• JavaScript (Node.js)
• Python
• Rust (learning + systems-oriented work)

Backend & Infra

• PostgreSQL
• REST APIs
• WebSockets
• JWT authentication
• Docker & Nginx

Frameworks & Libraries

• Flask / FastAPI
• Reflex (open-source contributor)
• Actix-web
• Mocha (open-source contributor)

Other

• Git & GitHub
• Linux / CLI tooling

What I’m working on / learning

• Contributing to open-source (recently around dynamic sitemap generation in Reflex)
• Deepening knowledge of PostgreSQL internals (e.g. wraparound, pagination strategies)
• Designing backend-heavy products (payments, task management, infra-style tools)
• Improving systems-level thinking with Rust
• Implementing RAG systems using rig
• Learning/Implementing Vector databases in Rust

Open to

• Backend-heavy projects
• Open-source collaboration
• Interesting infrastructure or developer tooling ideas

📫 Reach me here on GitHub or via issues/PRs if you want to collaborate.