- Built the backend platform from scratch as one of the first four engineers in a fast-growing startup; designed and implemented core services in Go using gRPC for inter-service communication, PostgreSQL and MongoDB for persistent storage, Redis for caching, and NATS for event-driven messaging. - Led end-to-end integration with two external fleet management systems; architected and developed a compatibility layer in Go, enabling seamless telemetry, command (lock/unlock), and state synchronization across different providers. - Single-handedly designed and implemented the purchases microservice for payments and recurring subscriptions; built robust, idempotent processing pipelines with Go, PostgreSQL transactions, rate limiting/queues, ensuring reliable high-volume billing at scale. - Diagnosed and resolved critical scaling bottleneck in recurring payments cron jobs. Refactored bursty renewal logic with distributed locking and asynchronous processing via NATS, slashing average purchase queue wait times from 5 seconds to 0.5 seconds and preventing overload during peak cycles. - Introduced the full observability stack project-wide; strategically selected OpenTelemetry over vendor-locked alternative to ensure flexibility and avoid lock-in, then deployed and configured the OpenTelemetry Collector to centralize ingestion—enabled all services to export standardized logs, traces, and metrics for comprehensive monitoring and debugging. - Owned backend for the Georgia test-market launch as the sole on-site backend engineer; deployed and stabilized production Go services, monitored traces/metrics, and iterated in real-time to support initial fleet rollout and user operations. - Architected the in-house fleet management system to handle persistent TCP connections from 350,000+ scooters; designed efficient connection pooling, real-time ingestion, and command dispatching in Go with NATS pub/sub, Redis for session state, enabling reliable low-latency IoT communication at scale.

- Spearheaded improvements to the core VRP algorithm, achieving a 30% increase in ETA accuracy for courier logistics. - Optimized the routing process to ensure optimal delivery paths, reducing overall delivery times. - Utilized technologies such as Go, PostgreSQL, Kafka, GRPC, Kubernetes, OSRM, Docker, and Firebase to enhance system efficiency.

- Optimized SQL queries, improving API response times by 40% and ensuring scalability under high traffic. - Designed and implemented a fault-tolerant SMS delivery system capable of handling 30,000+ mes- sages within seconds. - Leveraged a stack of Go, MySQL, Redis, RabbitMQ, Docker, and React to build robust solutions.

- Developed a logistics module for an ERP system, streamlining operations for a chemical production company. - Proposed and implemented architectural changes, enhancing microservice performance and scala- bility. - Key technologies: Go, PostgreSQL, RabbitMQ, Redis, Docker.

- Led a development team in building a web platform for an HR-tech startup, contributing to a $1M valuation. - Built the platform prototype in 30 days, expediting product launch. - Designed and implemented a scalable microservice architecture for the entire system. - Proposed features that attracted significant investments. - Stack: Go, PostgreSQL, MongoDB, React, Docker.