Benedictus Owambo Okello — System Architect & Full-Stack Developer

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Profile

field regime · laminar drift

System architect and full-stack developer with 3+ years shipping production platforms end-to-end. Designs multi-tenant SaaS, payment integrations (M-Pesa, Stripe) and AI-powered products on Docker-based cloud infrastructure. B.Sc. Mathematics & Computer Science (JKUAT); Cisco DevNet Associate and AWS certified. 5+ systems in production serving real businesses across East Africa.

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Core Skills

field regime · rising density

LanguagesPython · TypeScript · JavaScript · SQL · HTML/CSS

FrontendReact · Next.js · Tailwind CSS · REST & WebSockets

Backend & DataNode.js · Django · FastAPI · PostgreSQL · Supabase · Redis

DevOps & CloudDocker · Nginx · Linux · GitHub Actions CI/CD · AWS · DigitalOcean · Cloudflare Workers

IntegrationsM-Pesa Daraja · Stripe · OpenAI/Gemini/Groq · Shopify API · n8n · Resend

PracticesSystem design · multi-tenancy & RLS · API design · POS & barcode systems · security hardening

03

Experience

field regime · directional current

Full-Stack Developer & System Architect 2023 — PRESENT

OkelloDev · Freelance · Nairobi, Kenya

Designed, built and deployed 5+ production platforms for East African businesses — multi-tenant SaaS, e-commerce and AI products — on AWS and DigitalOcean (Docker, Nginx, GitHub Actions CI/CD).
Architected Ohala Business OS end-to-end: per-tenant subdomains with row-level-security isolation, POS, and M-Pesa/Stripe payments; cut RSC payloads from 5 MB to 30 KB with a 5× middleware speedup.
Engineered a custom DocType engine (ERPNext-style dynamic schemas) and a statement-reconciliation engine parsing M-Pesa, NCBA, Paystack and Shopify exports.
Automated cross-platform data pipelines: Jumia-to-Shopify catalog migrations across 3+ brands with inventory and price compliance checks.

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Selected Projects

field regime · convergent vortices

Ohala Business OS — Multi-tenant business platform

Next.js · Supabase · PostgreSQL · Docker

Tenant subdomains with RLS isolation; POS with variant matrix and barcode scanning; superadmin portal with live log streaming and web terminal; M-Pesa & Stripe payments; AI assistant with natural-language querying over platform data.

DarjaBot — AI Telegram translation assistant

Python · Gemini · Groq · Whisper · Telegram

Text, voice and OCR translation between Algerian Darja, English and French with dialect modes (Algiers, Oran, Constantine) and TTS pronunciation; community-verified dictionary; Stripe-based subscription tiers. Live on Telegram — try it ↗

Stretch Therapy Kenya — Booking & payment automation

Node.js · Cal.com · n8n · Traefik

Self-hosted Cal.com + n8n booking stack with branded email automation, KES session packages, Google Sheets analytics and automated daily backups; 38 email-template unit tests.

Ohala Bizware · Phoelix Fashions — Inventory & accounting platform

Django · DRF · PostgreSQL · Redis

Custom DocType engine (ERPNext-style dynamic schemas); 700+ SKU variants with Code128 barcodes; M-Pesa/NCBA/Paystack/Shopify statement reconciliation; headless REST API powering two Next.js storefronts.

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GitHub — Live Status

field regime · live sync

D-upe

@D-upe · all-time telemetry · live

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Contributions · all time

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Contributions 2026

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Public repos

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Stars earned

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Followers

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06

Education & Certifications

field regime · settling

B.Sc. Mathematics & Computer Science 2021 — 2025

Jomo Kenyatta University of Agriculture and Technology (JKUAT)

Cisco DevNet Associate

Cisco

verify ↗pdf

Introduction to Containers

Amazon Web Services

verify ↗pdf

AWS Fargate — Overview

Amazon Web Services

verify ↗pdf

Python Essentials 1

Python Institute

verify ↗pdf

Introduction to Cybersecurity

Cisco · JKUAT

verify ↗pdf

Introduction to Cybersecurity

ALTI

verify ↗pdf

HTML Essentials

Cisco

verify ↗pdf

all credentials verifiable on Credly — credly.com/users/benedictus-owambo

07

Contact

field regime · ember afterglow

Building something that needs to ship? The field is open.