Deepak Kumar

Architected and developed a configuration-driven, zero-code helpdesk backend utilizing a JSON-based workflow engine and API orchestration, enabling rapid rollout of new flows and integrations without code modifications.

Optimized cohort service performance, significantly reducing P99 latency from 20ms to 10ms at a load of 1M users, and delivered key features like user list CSV download and cohort grouping.

Engineered an SLA tracking pipeline with AWS Lambda, processing ELB logs to accurately measure API/service SLAs and automating scheduled visibility reports to stakeholders.

Developed a high-performance mission service, processing 100K events/min (P99 < 150ms) and 200K reads/min (P99 < 50ms) for real-time progress tracking and rewards.

Engineered a fault-tolerant workflow orchestrator on Uber Cadence, Kubernetes, and Cassandra, ensuring guaranteed workflow completion with automatic retries and state persistence.

Built a scalable resource usage tracking system with real-time rate limiting and automated alerts, handling 100K POST requests/min with sub-70ms P99 latency.

Implemented customer PII masking with role-based access controls, enhancing GDPR/CCPA compliance and enabling customized data visibility based on user roles.

Developed a custom attendance module with a rule engine, eliminating 100% dependency on the tech team for attendance customization and empowering business users with independent rule configuration.

Executed a critical database migration, significantly improving API performance and reducing infrastructure costs.

Developed an employee onboarding/deboarding module with CSV upload support, enabling bulk processing and reducing manual effort and time.