AI Systems Engineer

Festus
Koech

Building intelligent systems that ship.

Three years of production AI — agentic pipelines, voice infrastructure, RAG systems, and the backends underneath. Built from scratch, running in the real world.

Nairobi, KenyaOpen to work
About

"I don't build AI layers on top of existing software. I build complete systems from scratch and make them work in the real world."

Co-founder of Elimika AI - shipping production AI systems that serve real users at scale. From adaptive learning pipelines to real-time exam supervision handling 500 concurrent sessions.

Builder of open-source infrastructure: Voicekit for self-hosted voice agents, OpenSearch Engine for zero-cost agent search, and OpenStore for multi-tenant file management - tools built because the right ones didn't exist.

LangChainLangGraphAnthropic ClaudeOpenAIPrompt EngineeringAgent governanceQdrantWeaviateJina EmbeddingsCrawl4AISearXNGPyTorchTensorFlowLSTMYOLOv11/12NLPFastAPINode.jsWebSocketsRedisBullMQReactNext.jsTypeScriptTailwindCSSReact NativeDockerKubernetesAzureGitHub ActionsNGINXLangChainLangGraphAnthropic ClaudeOpenAIPrompt EngineeringAgent governanceQdrantWeaviateJina EmbeddingsCrawl4AISearXNGPyTorchTensorFlowLSTMYOLOv11/12NLPFastAPINode.jsWebSocketsRedisBullMQReactNext.jsTypeScriptTailwindCSSReact NativeDockerKubernetesAzureGitHub ActionsNGINX
LangChainLangGraphAnthropic ClaudeOpenAIPrompt EngineeringAgent governanceQdrantWeaviateJina EmbeddingsCrawl4AISearXNGPyTorchTensorFlowLSTMYOLOv11/12NLPFastAPINode.jsWebSocketsRedisBullMQReactNext.jsTypeScriptTailwindCSSReact NativeDockerKubernetesAzureGitHub ActionsNGINXLangChainLangGraphAnthropic ClaudeOpenAIPrompt EngineeringAgent governanceQdrantWeaviateJina EmbeddingsCrawl4AISearXNGPyTorchTensorFlowLSTMYOLOv11/12NLPFastAPINode.jsWebSocketsRedisBullMQReactNext.jsTypeScriptTailwindCSSReact NativeDockerKubernetesAzureGitHub ActionsNGINX
Projects
8 shipped
Voicekit

Voicekit

Production

Self-hosted Python package for building production voice agents without managed platform fees. Integrates Whisper STT, Chatterbox TTS with voice cloning, and Silero VAD into one streaming pipeline.

PythonWhisperChatterbox TTSSilero VAD+4
Elimika 365

Elimika 365

Production

Production AI exam marking and supervision system combining YOLOv11/12 object detection, MediaPipe FaceMesh pose estimation, and a custom LSTM anomaly model.

PythonFastAPIYOLOv11PyTorch+7
OpenSearch Engine

OpenSearch Engine

Production

Self-hosted agent search infrastructure built for AI agents that fire dozens of search queries per task. Combines SearXNG metasearch with Spider-rs content extraction.

GoRustPythonFastAPI+4
Education

Computer Science at CUEA, Data Science at Martial Jenga Labs, Software Development at Modcom. Certified in AI Agents, Claude Code and Claude AI Skills by Anthropic, plus LangGraph and Deep Learning.