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Humphrey Luchetu

@humphreyluchetu

Message

I build production agent systems, APIs, and high-volume financial applications with Python and TypeScript.

Kenya

Message

I'm building agent frameworks, RAG systems, and LLM applications in Python and TypeScript, including durable memory, tool calling, multi-agent orchestration, retrieval, evaluation, and observability.

I designed the open-source Sophons Agent and RAG SDK and built source-grounded systems including Katiba AI, where BGE-M3 hybrid retrieval reached 96.2% Recall@K on a draft Swahili-English evaluation set.

At Equity Bank, I helped deliver Pay With Equity across five countries, supporting over 2 million daily transactions. Earlier, I led a hospital management system deployed to 27 hospitals and built full-stack web products across healthcare, collections, and commerce.

Experience

Work history, roles, and key accomplishments

Current

Senior Frontend Developer

Current

Equity Bank

Aug 2021 - Present (5 years 1 month)

Helped deliver Pay With Equity, a merchant platform deployed across five subsidiaries in five countries, onboarding 10,000 merchants and supporting more than 2 million transactions daily. Built and integrated React and Next.js interfaces with backend services in a high-volume financial environment.

React Next.js State Management Testing Debugging Performance Analysis User Feedback Documentation

Full-Stack Engineer and React Developer

Collection Africa Ltd

Apr 2021 - Jan 2022 (9 months)

Built React components and calling-related interfaces for a debt-collection application with debtor profiles, repayment activity, and communication workflows. Translated stakeholder requirements into secure features and collaborated across the development team in an agile delivery process.

React Agile Development Stakeholder Management Secure Feature Development

Full-Stack Software Engineer

Afya Research Africa

Feb 2019 - Mar 2021 (2 years 1 month)

Led design and development of a PHP and Zend hospital management system using REST APIs, deployed across 27 hospitals. Converted stakeholder workflows into data models, APIs, interfaces, and forms, and supervised junior engineers through delivery milestones.

PHP Zend REST APIs AWS RDS S3 EC2 AWS ECS IBM MQ SES IAM Data Modeling Supervision Documentation

Full-Stack Developer

Kijani Collective

Jan 2018 - Jan 2019 (1 year)

Developed responsive web interfaces, PHP and Laravel backends, and Shopify sites, including an online store that supported sales of more than 10,000 pairs in its first year.

PHP Laravel Shopify Responsive Design