Backend Engineer
First seen by Alion on Oct 27, 2026.
About the Role
We're looking for engineers who can independently design and build reliable backend services. Beyond writing code, you should be comfortable thinking about performance, data consistency, reliability, and maintainability.
Responsibilities
● Design and implement backend services.
● Translate business requirements into technical solutions.
● Design efficient database schemas.
● Build reliable asynchronous workflows.
● Debug production issues independently.
● Review code and mentor junior engineers.
● Improve application performance and reliability.
● Contribute to technical design discussions.
Must Have Strong Programming Skills
● Proficiency in at least one backend language.
● Strong Object-Oriented Design.
● Good understanding of design principles.
● REST API design.
● Writing maintainable, testable code.
Database Knowledge Comfortable with:
● Database design
● Query optimization
● Transactions
● Indexing strategies
● Locking (high-level understanding)
● Isolation levels (basic understanding)
● Data modelling Concurrency
Working knowledge of:
● Race conditions
● Concurrent updates
● Idempotency (basic understanding)
● Optimistic vs pessimistic locking (conceptual)
● Thread safety (language dependent)
Asynchronous Systems Experience with:
● Background jobs
● Queues
● Retry mechanisms
● Scheduled jobs
● Event-driven workflows (nice to have)
Problem Solving Should be comfortable:
● Debugging production issues.
● Reading logs.
● Identifying bottlenecks.
● Breaking large features into smaller tasks.
● Evaluating trade-offs before implementation.
Good to Have Experience with:
● Redis
● RabbitMQ / Kafka / BullMQ or similar
● Docker
● Kubernetes
● AWS
● CI/CD
● Monitoring & Logging tools
What We Look For Successful engineers here typically:
● Think before coding.
● Write maintainable solutions.
● Understand why a design works, not just how.
● Consider edge cases.
● Take ownership of production issues.
● Help improve the engineering practices of the team.
Interview Focus
● Programming fundamentals
● Database design
● SQL
● Concurrency scenarios
● API design
● Production debugging
● Problem-solving exercise
● Code review discussion
Skills
Java, Object Oriented Programming (OOPs), Databases, NodeJS (Node.js), Redis, Docker, SQL, Python