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Senior Java Engineer – Core Backend & Algorithms

TekClan

IndiaOn-sitesenior₹8 LPA–20 LPA
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About the role

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 them

Non-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

Skills required

microserviceskubernetesspringkafkajava

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