Mohamed Saleh User

I am a backend engineer with 2.5 years of experience building Java Spring Boot microservices for enterprise SaaS platforms. At TekMedia Software in Coimbatore I built and shipped an 8-service security monitoring product (Intelitor) from the ground up — owning alarm processing, notification delivery, workflow automation, API gateway, and real-time WebSocket push to operator dashboards, all running on AWS EKS with Kubernetes.

My day-to-day work spans Kafka event streaming with Avro schemas and Kafka Streams, Redis for caching and distributed locks, PostgreSQL with PostGIS, Spring Cloud Gateway, and inter-service communication via gRPC and OpenFeign. I wrote the notification service (~2,200 lines) integrating Twilio SMS/WhatsApp/IVR and Google FCM push with a 26-key user preference system, and hardened the auth layer with RSA-256 JWT, TOTP MFA, email MFA and role-based access control.

Before that I worked on broadcast media transport in C++11 with FFmpeg for a Stockholm-based client (NetInsight), leading a major-version migration from FFmpeg 3.8 to 7.x and restoring hardware-accelerated 4K encoding. I also have production experience with Elixir/Phoenix for high-concurrency alarm ingestion handling 10,000+ simultaneous device connections.

I am a B.Tech IT gold medalist from Coimbatore Institute of Technology (9.7 CGPA), and was Students Union Chairman for the 2023-24 term. I actively build portfolio projects — currently building Concord, a distributed order-processing system implementing Saga orchestration and the Transactional Outbox pattern over Kafka with Spring Boot, Kubernetes and Terraform. My multilingual PIB pipeline was published as an IEEE conference paper.