Jared Bada Mwangene

Digital platform for live gymnastics & trampoline competition management — used by FIG and national federations worldwide.

• Engineered a reactive Live Starting Order System for 6 gymnastics disciplines using Angular, RxJS, and NgRx SignalStore — eliminating scroll jank and preserving user state during live score emissions.
• Built a deep-link navigation framework across 4 competition tabs with URL query-param sync and full Playwright E2E coverage.
• Redesigned the rankings filter system enforcing discipline-specific hierarchy, eliminating a critical "Maximum call stack size exceeded" crash in production.
• Resolved multiple flaky Playwright tests by scoping selectors and adding deterministic waits — improving CI/CD pipeline reliability.

Nairobi-based Fintech startup — secure payment platforms, digital wallets, financial analytics, and blockchain applications.

• Engineered a Unified Trading API integrating 9 broker platforms (Alpaca Markets, Binance, Forex.com) using Nest.js and Nitro — achieving a 30% reduction in response times.
• Implemented secure cloud storage across Google Drive, Dropbox, and Apple iCloud via Firestore; delivered 99.9% uptime and robust data protection.
• Designed state management solution using Pinia Store, reducing API calls by 30%.
• Assisted in developing the trading platform's computational core using C++ and WebAssembly for high-performance browser execution.
• Introduced structured feature documentation workflows, reducing new developer onboarding time from 3 weeks to 10 days.

SaaS platform and logistics aggregation for enterprise clients.

• Developed and launched 15+ new features for a flagship SaaS platform — boosting user engagement by 20%.
• Designed and deployed Go microservices on AWS for logistics aggregation and fuel cost calculation, reducing client operational costs by 10%.
• Reduced escalation tickets from 80% to 30%; introduced 50% automated test coverage with Jest and Cypress.

Ride-matching platform and enterprise ETL data migration.

• Pioneered a ride-matching system using Google S2 Geometry, Django, and Redis — improving matching algorithm efficiency by 70%.
• Enabled MVP launch within 3 months by leading cross-functional alignment across Android, Angular, and backend teams.
• Designed and implemented a robust ETL framework (Django, Docker, RabbitMQ) facilitating transfer of 22 data domains and onboarding 30+ enterprise customers.
• Reduced initial page load time by 500ms through critical data visualisation component optimisation.

Cloud infrastructure and database performance engineering.

• Co-created a Kubernetes cluster to standardise on-premise deployments; configured AWS VPCs, load balancers, and bastion servers.
• Reduced SQL query execution time from 60s to 16s by optimising complex multi-join queries.
• Improved scalability and reduced pipeline execution time by 70% by redesigning PostgreSQL schema.

ICT solutions and M-Pesa integration for local businesses.

• Translated Figma designs into responsive Laravel views, increasing mobile usage by 15%.
• Built a Node.js scheduling algorithm for asset maintenance, reducing missed incidents by 20%.
• Supported 10+ clients with M-Pesa API integration, cutting integration time by 25%.