Backend Engineer II

Ideal Experience: 25 Years

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 productive 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.
Valuable 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.

Positive 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.

📌 Back End Engineer Ii Mumbai
🏢 NDX Financial Services
📍 Mumbai