Contents

Phidel Onyango

Phidel Onyango

Software Engineer · Nairobi, Kenya

Software engineer with 4+ years of experience building web, mobile, and desktop applications. Creator of Senpwai, an open-source app with 50k+ downloads and 400+ GitHub stars. Strong in Python, TypeScript, Dart, Next.js, React, FastAPI, and Flutter, with a focus on scalable systems, AI integrations, and clean architecture.

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Chapter II

Experience

Brand2D

Software Engineer

Oct 2025 - Present

  • Building MamaCare, a maternal care platform with facility-scoped patient records, signed visits, care plans, and appointment tracking
  • Built Centonomy Tools, a financial management suite
  • Architected FastAPI backend for expense tracking, budgeting, and balance sheets
  • Integrated React + Zustand frontend, ported to mobile via Capacitor
  • Embedded AI to categorize financial data from SMS, reducing manual work by ~50%
  • Developed PracticeOS, a legal operations platform for matter workflows, client intake, documents, invoicing, and organization access controls
  • Built the IGAD Chatbot, an agentic conversational assistant grounded in IGAD website knowledge.
  • Developed a scraping and ingestion pipeline using Milvus to structure and store corpus data for semantic retrieval.
  • Implemented RAG with LangChain, reducing hallucination rates by 80% through improved contextual grounding.
  • Built the frontend with Flutter and integrated it with a FastAPI backend for real-time interactions.
Next.jstRPCPrismaPostgreSQLFastAPITanStackFlutterMilvus

Nafuu Inc.

Lead Software Developer

Jun 2023 - Dec 2024

  • Led development of Nafuu, a production-scale e-commerce aggregator
  • Designed modular FastAPI backend for 1M+ SKUs across Jumia, Jiji, and Kilimall
  • Built payment microservices supporting MPESA, cards, and Stripe
  • Deployed on GCP with Docker, Kubernetes, and Redis
FastAPIPythonFlutter

ALMI Group

Fullstack Developer

Jan 2022 - May 2023

  • Built a health-tech platform for appointment booking and medical records
  • Achieved 99.9% uptime with event-driven architecture on Azure
  • Implemented real-time patient notifications
  • Cut API response times by 30% through data pipeline optimization
Next.jsFastAPIZustandAzureDocker
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Chapter III

Projects

Senpwai

400+ ★ · 50k+ downloads

Anime discovery, tracking, and batch downloads on Android, Windows, macOS, and Linux. Supports HTTP and BitTorrent downloads, persistent queues, and automatic episode tracking.

FlutterDartBitTorrent

Sengpt

41 ★

ChatGPT in your terminal, no API key required. Zero-config CLI for conversational AI.

PythonCLI

Kenyare

Hackathon Winner

AI-powered insurance underwriting platform. Automated document parsing and proposal generation, cutting latency from hours to minutes.

FlaskSvelteKitOpenAI

Sentorr

Movies and TV streaming on Android and desktop, with playback during downloads, seek-aware buffering, offline downloads, and device sync.

FlutterDartlibtorrentmpv

Sijui

11 ★

Reddit bot that answers questions by performing Google searches and prompting ChatGPT.

GoReddit API

create-fastapi-app

CLI scaffolding tool for production-ready FastAPI apps with best practices baked in.

PythonFastAPI
View all on GitHub
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Chapter IV

Education & Skills

University of Nairobi

BSc Computer Science, Second Class Upper Division

Sep 2021 - May 2025

Maseno School

KCSE, A- (80 points)

Jan 2017 - May 2020

Technical Skills

Languages Python, TypeScript, JavaScript, Go, Dart
Frontend & Mobile React, Next.js, Svelte, Flutter, TailwindCSS, Capacitor
Backend FastAPI, Flask, tRPC, SQLAlchemy, Prisma, PostgreSQL, Milvus
Cloud & DevOps Docker, Kubernetes, GitHub Actions, GCP, Azure, Hetzner
Agentic Engineering Codex, Claude Code, Antigravity, OpenCode

Soft Skills

  • Communication - translating technical concepts into actionable insights for cross-functional teams and stakeholders
  • Detail-oriented - strong focus on accuracy, edge cases, and reliability across code, data workflows, and system behavior
  • Problem solver - debugging complex systems, optimizing performance bottlenecks, and designing practical solutions under tight constraints
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Chapter V

Contact

Open to opportunities, collaborations, and interesting conversations.

GitHub github.com/SenZmaKi Email phidelalvin@gmail.com Phone +254 719 720 364 LinkedIn Phidel Onyango Resume View PDF ↗

© 2026 Phidel Onyango

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