• Rebuilt the legacy notification pipeline as a Socket.io microservice which now handles 50,000 notifications/hour (2× previous capacity), with zero missed deliveries since launch.

• Designed and delivered a 6-page responsive marketing site in Next.js + Tailwind + Framer Motion, improving page load times 35% and increasing user engagement 40%.

• Architected independent microservices for the payment gateway using TDD; reduced system downtime by 15 minutes per incident and deployment errors from 15% to <1% via GitHub Actions CI/CD.

• Built a 5-step KYC onboarding flow with MFA, biometric verification, and SumSub integration shortened average onboarding time by 3 minutes and achieved zero security breaches.

• Set up Prometheus + Grafana monitoring for Dockerized services on Kubernetes improved resource utilization 15% across all services and provided real-time alerting for API errors and latency spikes.

• Cut junior developer merge conflicts by 70% by establishing a standardized Git workflow with clear branching and PR review conventions.

Supported 150+ students in Logic Programming (Python) as a Teaching Assistant. Led office hours, graded assignments, and delivered feedback within 48 hours.

• Revamped CRM application UI/UX using React (MERN stack) which drove a 25% lift in user engagement metrics within 6 weeks of release.

• Architected RESTful APIs with Node.js/Express for contact management, lead tracking, and sales pipeline automation, handling 10,000+ daily requests at 99.5% uptime.

• Optimized MongoDB with aggregation pipelines and compound indexes cut average query response time by 40% and enabled real-time sales dashboards.

• Built RESTful APIs using Python/Flask + Swagger for a bicycle inventory system which handled 200+ daily transactions and cut manual inventory updates by 60%.

• Designed a 12-table normalized SQL Server schema with indexed queries and stored procedures which reduced inventory lookup time from 3.2s to 0.8s (75% faster).

• Delivered 3 major features (low-stock alerts, supplier integration, sales reporting) ahead of sprint deadlines; comprehensive error handling reduced production bugs by 35%.

• Engineered a real-time coupon allocation system using Firebase Realtime Database, facilitating instant updates and reducing coupon distribution latency by 60%, resulting in a 30% increase in time-sensitive offer conversions.

• Integrated Firebase Authentication with custom validation logic, implementing secure user registration and login flows that reduced unauthorised access attempts by 80%.

• Developed coupon search feature using Java and Spring Boot REST APIs with indexed database queries and caching layer that achieved <500ms search response times and increased search-to-purchase conversion by 35%.