Shaphil Mahmud

● Architected high-performance RESTful APIs and relational schemas for multi-tenant applications.
● Led a junior team, defining architectural best practices and conducting code reviews that improved velocity and code quality.

Contributed to a high-scale monolithic codebase, diagnosing and resolving critical bottlenecks in core business logic, resulting in increased application stability and reduced downtime.

● Engineered microservices for an educational platform (Campus.com), developing reusable internal libraries and CLI tools that streamlined development workflows.
● Led a cross-functional team in developing an automated IoT-driven vertical gardening system (Grönska), architecting a custom high-performance REST framework that optimized API response times by ~20% for real-time sensor data telemetry.

Architected a high-concurrency car auction platform for the Chilean market, implementing scalable bid processing and real-time inventory management that successfully supported peak traffic loads of 5,000+ simultaneous users.

● Architected a real-time management infrastructure for a large-scale bike-sharing fleet, enabling efficient asset tracking and user operations.
● Engineered a high-throughput, queue-based SMS authentication system, ensuring reliable user onboarding at scale.
● Designed microservices for mobile banking integration (bKash), ensuring secure and idempotent transaction reconciliation.

Worked on the prototype's back and front end for their pre-seed days.

● Architected low-latency monitoring and broadcasting services (BuzzCat) for real-time package and transit tracking.
● Developed a Vehicle Tracker using Raspberry Pi providing real-time public transit data.
● Built an automated server-health alerting engine using systemd, significantly reducing infrastructure downtime.