Open to opportunities

Samuel Esan

@samuelesan

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I build scalable Go backend systems, AI applications, and payment infrastructure.

Nigeria

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What I'm looking for

I'm looking to build reliable backend infrastructure and AI-powered products, working on distributed systems, asynchronous workflows, REST APIs, and real-world engineering problems.

I've built backend systems for AIKi Productivity App and Mikaelson-Initiative, delivering REST APIs, secure authentication, database workflows, background jobs, and integrations that support real product features.

I build production-ready web and mobile applications end to end, from requirements and architecture through implementation, debugging, deployment, and third-party integrations for authentication, storage, and payments.

My Go payment infrastructure uses PostgreSQL transactions, row-level locking, idempotency, double-entry ledgers, Redis, and background workers to process transfers and scheduled payroll safely. I've also built a video-on-demand platform with RTMP ingestion, FFmpeg transcoding, adaptive HLS streaming, transcription, Pinecone, and RAG-powered video search.

I'm motivated by reliable backend infrastructure, distributed systems, asynchronous workflows, and applying AI to solve real-world engineering problems.