Responsibilities included:
- Contributed to rewriting existing Node.js microservices in Rust using async/await, helping the team reduce P99 latency by 50% and cut infrastructure costs by 20% after deployment
- Engineered a concurrent client-to-S3 multi-part upload API utilizing parallel chunk processing algorithms, slashing large-file transfer latency by 83% (4 min to 40 sec) and optimizing throughput.
- Developed parts of a gRPC-based backend in Dart, enabling bi-directional streaming and contributing to a 40% reduction in API payload size compared to previous REST endpoints.
- Worked on an internal cleanup module that integrated Nest.js APIs with Rust workers, supporting the removal of 7,000+ orphaned documents and helping reduce database storage usage by 30%.
- Assisted in building S3-backed ingestion scripts for ML workflows, improving data availability for model training and contributing to a 15% reduction in training time through more efficient data handling.