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Senior Java Engineer – Core Backend & Algorithms

TekClan Verified employer

Actively hiring · Posted 5d ago · JEV261041ADFEBD00

Salary₹8,00,000 – ₹20,00,000 per year
Experience5–10 yrs
LocationChennai, Tamil Nadu
Work modeOffice · Full time
Openings1

Job description

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-efficient 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 themNon-Negotiable Skills * 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 reason about time complexity, space complexity, and trade-offs * Strong database fundamentals (query optimization, indexing, transactions) * Experience with message brokers (ActiveMQ, Kafka, RabbitMQ) * Exposure to Kubernetes-based deployments or large-scale microservices Interview Focus (Be Prepared) * Algorithm design & problem solving * Deep Java fundamentals * System design discussions (backend-heavy) * Performance tuning scenarios * Real-world debugging and optimization challenges

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