Rohit Kum ar Sen ior

Available to hire

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Beginner
Beginner
See more

Language

English
Advanced

Work Experience

Senior Software Engineer at Warner Bros. Discovery
June 1, 2022 - Present
Owned server-side services powering the U.S. Max launch (2023), designing subscription, account, content discovery, and playback APIs and data models for a unified platform. Implemented Python FastAPI endpoints alongside Spring Boot microservices, standardizing entitlement and playback control flows and integrating SQLAlchemy/Alembic migrations with Hibernate JPA mappings. Built PostgreSQL schemas for catalog and subscription, applied targeted indexing and query tuning, and managed RDS replication/failover strategies for global rollouts. Introduced Redis caching for content metadata and session state to reduce database read pressure. Built Celery-based background workers for billing/subscription reconciliation and entitlement propagation using idempotent task patterns. Containerized services with Docker images and deployed to EKS using Terraform with GitHub Actions and ArgoCD-driven deployments for consistent releases. Established Prometheus/Grafana observability for playback health
Senior Software Engineer at RBC
May 1, 2020 - May 1, 2022
Architected an event-driven personalization platform for NOMI, enabling real-time decisioning and moving legacy components into scalable microservices that delivered 2B+ insights for 1.5M+ users. Built FastAPI services in Python to expose explainable recommendation endpoints with persisted decision metadata stored in PostgreSQL via SQLAlchemy. Scaled RDS PostgreSQL with read replicas and index optimization to process millions of transactions in real time while keeping model-serving latencies low across 12 languages. Developed Celery pipelines for cash-flow forecasts and auto-save logic to process transaction streams in near real time, supporting 1M+ conversational assistant questions. Added Redis caching for forecast results and session context to speed UI responses and improve end-to-end experience. Implemented OpenTelemetry/Prometheus instrumentation and created Grafana panels for SLA tracking and product analytics. Authored Alembic migration workflows with rollback plans to migrat
Software Engineer at Rogers Communications Inc
April 1, 2018 - May 1, 2020
Built Ignite TV client surfaces across set-top boxes and companion apps including on-demand browsing and cloud-PVR management, keeping the experience consistent across TV and phone. Developed account/entitlement and streaming backend services authenticating via MyRogers login and delivering live channels, on-demand content, and cloud-PVR recordings nationwide. Wired next-watch recommendation surfaces and voice-remote search to connect the client to intent resolution and entitlement checks. Integrated with legacy provisioning and billing systems so entitlements and recordings stayed in sync across multiple playback backend systems, synchronizing state across devices.
Software Engineer at Google
April 1, 2014 - April 1, 2018
Built and enhanced internal observability systems including logging, metrics, and distributed tracing integrations to improve production debugging and system visibility. Supported on-call production incidents by diagnosing live issues, performing root-cause analysis, and implementing hotfixes to restore service stability under tight SLAs. Developed automation scripts and internal tooling to streamline release workflows, reducing manual intervention for release processes across engineering teams. Improved backend performance through query optimization, caching strategies, and reduction of request latency in high-throughput systems. Supported data infrastructure pipelines by improving reliability of ingestion workflows and ensuring consistency across distributed processing jobs. Collaborated with SRE and platform engineering to enhance system resiliency via retry mechanisms, failover handling, and load balancing. Participated in migration and refactoring efforts modernizing legacy serv

Education

B.S. at Carleton University
January 1, 2010 - January 1, 2014
M.Sc. at Western University (UWO)
January 1, 2023 - January 1, 2026
B.S. Computer Science at Carleton University
January 1, 2010 - January 1, 2014
M.Sc. Computer Science at Western University (UWO)
January 1, 2023 - January 1, 2026

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services, Media & Entertainment, Computers & Electronics