Enterprise-grade systems engineered for scalability, resilience and security. From high-security coordination platforms to autonomous infrastructure guardrails.
Selected systems and personal engineering work. Employer systems are described only at the level appropriate for public sharing.
Lead Software Engineer & Head of IT at UMS Kenya — building and strengthening production systems people depend on.
Production-grade systems featuring 2,000+ word technical deep-dives into architecture and failure handling.
Inkly is a high-availability secure messaging platform engineered for zero-knowledge privacy and horizontal scalability. Built with Node.js, PostgreSQL, MongoDB and Redis; clients are Flutter-based.
An AI-assisted reliability and remediation platform designed to detect anomalies, enforce policy and prevent unsafe self-healing in production systems.
LedgerX is a finance management application developed by Ancel Ajanga. PostgreSQL financial correctness and multi-tenant isolation power this production-grade platform for invoicing, payments, double-entry accounting, audit, fraud detection and diagnostics.
Robust systems and applications demonstrating domain expertise in finance, AIOps and distributed systems.
Fits by Aliv is a full-stack e-commerce application developed by Ancel Ajanga: a Kenya-first marketplace for thrift and sustainable fashion. Production-grade checkout with M-Pesa STK Push, vouchers and VAT/WHT; soft inventory reservations and verified payment reconciliation prevent oversell and double-spend.
A production-grade financial platform engineered for correctness under failure, asynchronous payments and unreliable networks.
EduManage is an education application developed by Ancel Ajanga. Multi-tenant isolation and hierarchical RBAC enable multiple institutions on one platform. Failure-aware Express/NestJS backend with tenant-scoped access and Socket.io real-time events.
SignFlow is an accessibility application developed by Ancel Ajanga. A high-fidelity assistive technology platform for real-time sign language translation with WebSocket streaming, 3D avatar simulation and WCAG-compliant accessibility-first design.
OpsFlow is a business and operations application developed by Ancel Ajanga. AI-driven anomaly detection and failure-aware automation in a production-ready incident platform. Dual-database (PostgreSQL + MongoDB), real-time WebSockets, team-based multi-tenancy, 50+ API endpoints.
EduChain is an education and blockchain application developed by Ancel Ajanga. ERC721 NFTs and IPFS decentralized storage power tamper-proof academic certificates on Ethereum. Hybrid storage: MongoDB, IPFS and blockchain for verification.
Refined labs and technical experiments exploring new patterns in UI engineering and frontend optimization.
TaskForge is a productivity and project management platform developed by Ancel Ajanga. A resilient, real-time collaborative platform for engineering teams with sub-second latency, conflict-free synchronization and 100+ concurrent users per project.
E-Learning Platform is an education learning management system developed by Ancel Ajanga. A resilient, scalable LMS for thousands of concurrent students and hundreds of courses, with sub-2-second page loads, course management and real-time progress tracking.
Attendance System is a full-stack education application developed by Ancel Ajanga. A resilient attendance management system for educational institutions with automated tracking, analytics and reports. Handles 500+ users with 95% accuracy improvement and 70% reduction in administrative overhead.
Rasoha Academy is an education website developed by Ancel Ajanga. A modern, responsive site for a private school in Narok, Kenya, providing programs, events and resources for students and parents.
Travelogue is a travel platform developed by Ancel Ajanga. It features interactive world maps, travel stories, destination exploration and responsive design for travel enthusiasts.
Event Countdown is a utilities web application developed by Ancel Ajanga. A feature-rich countdown timer for creating and managing multiple countdowns for life events with recurring events and smart notifications.
I'm currently architecting new systems in the areas of decentralized identity and high-performance financial ledgers. Check back soon for more architecture deep-dives.
Open to a small number of thoughtful collaborations involving reliable software, operational systems and technically demanding product work.