IndiGo - Lead Machine Learning Engineer

Description :

Role Summary :

Were seeking a seasoned ML and Backend Developer with 5- 8 years of experience to design, build, and scale robust server-side systems.

You will own backend services end-to-endfrom architecture and APIs to data models, performance tuning, observability, and securitywhile collaborating closely with product, frontend, QA, DevOps, and data teams.

Required Skills :

- 5-8 years of professional experience building and operating backend systems at scale.

- 2-3 years of professional experience as an ML engineer embedding ML models in large scale applications at production scale.

- Strong understanding of distributed systems fundamentals (consistency, partitioning, concurrency, idempotency).

- Solid grasp of API design principles, versioning, pagination, error handling, and backward compatibility.

- Hands-on experience with :

1. Relational and non-relational databases, indexing, query optimization, and transactions.

2. Message queues/streams, job schedulers, and asynchronous processing.

3. Caching strategies (in-memory, edge, application-level) and performance tuning.

- Familiarity with containerization, orchestration, infrastructure-as-code, and cloud deployment concepts.

- Experience implementing secure coding practices and access controls.

- Proficiency with automated testing, CI/CD pipelines, and observability tools.

- Strong problem-solving skills, ownership mindset, and ability to mentor junior engineers.

- Exposure to LLMs, agentic AI frameworks, concepts around chunking, RAG preferred.

Preferred Experience :

- Microservice patterns where applicable.

- Feature flags, canary releases, and blue/green deployments.

- Domain-driven design and modular monolith to microservices transition experience.

- Data pipelines for analytics/ML integration and batch/stream processing.