Job Summary

5-10+ years of hardcore backend engineering experience. This is not a typical Java role. If your experience is mostly CRUD APIs, controller wiring, or shallow service layers - this role is not for you. We are looking for a top-tier backend engineer who thrives on: Designing complex algorithms Building high-performance, memory-productive systems Owning deep backend logic that actually moves the needle. You will work close to the core engine of the product, not the edges. What You'll Be Trusted With: Architect and build backend systems that must perform under load Design and implement custom algorithms for real-world, non-trivial problems Solve performance bottlenecks involving CPU, memory, I/O, and concurrency Build backend services where latency, throughput, and correctness matter Own document PDF processing pipelines end-to-end: Composition Rendering Optimization High-volume generation Make hard technical decisions and stand by them Mentor engineers by setting the bar, not micromanaging.
Responsibilities
- Architect and build backend systems that must perform under load




- Design and implement custom algorithms for real-world, non-trivial problems
- Solve performance bottlenecks involving CPU, memory, I/O, and concurrency
- Build backend services where latency, throughput, and correctness matter
- Own document PDF processing pipelines end-to-end: Composition Rendering Optimization High-volume generation
- Make hard technical decisions and stand by them
- Mentor engineers by setting the bar, not micromanaging
Requirements
- Exceptional Java expertise (Core Java, Spring Boot, Java 8+)
- Strong command over: Data structures algorithms
- Multithreading concurrency models
- JVM internals memory management
- Proven experience building custom algorithms (this will be evaluated)
- Deep backend engineering experience with Spring / Spring Boot
- Strong understanding of: API design principles
- Fault tolerance resilience
- Performance tuning profiling
- Ability to

📌 Senior Java Engineer (Chennai)
🏢 TekClan
📍 Chennai