Open to opportunities

Willford Churchill

@willfordchurchill

Message

I build production backend systems, payments, data pipelines, and AI integrations.

Kenya

Message

What I'm looking for

I'm open to international opportunities where I can independently own backend architecture and delivery, build secure production systems, and work on AI, data, payments, and API integrations in a remote environment.

I've taken Calurix AI from an empty repository to paying Google Play users, owning its architecture, PostgreSQL database, 12 production HTTP services, security, monitoring, releases, and M-Pesa payment pipeline.

I also build Python ETL and evaluation tooling, author benchmark-grade software engineering tasks for AfterQuery, and bring hands-on IT systems administration and support experience from Joyful Kids.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer & Founder

Current

Calurix AI

Mar 2026 - Present (7 months)

Sole engineer for an AI nutrition-tracking application published on Google Play, owning architecture, database, APIs, payments, security, monitoring, and release.

Python SQL TypeScript REST APIs PostgreSQL Supabase Pgvector PostgREST Vertex AI Gemini IAM M PESA Daraja API OpenFood Facts FatSecret API GitHub Actions Sentry Security Testing Linux

Current

Software Engineering Task Author

Current

AfterQuery

Jan 2026 - Present (9 months)

Author benchmark-grade software engineering tasks for AI coding systems, including reproducible failing states, verifiable fixes, and tests that pass only for correct solutions.

Software Engineering AI Testing Documentation