LEENA AI - Software Development Engineer III - Backend Architecture
Skills
About the role
Leena AI is hiring a full-time backend engineer for locations in India, with 5 to 8 years of experience requested. The role suits engineers who can own high-scale distributed systems, design backend architecture, and mentor others. You’ll build and operate enterprise SaaS services that support Agentic AI products. The work spans API design, data performance, production troubleshooting, and cross-functional technical delivery.
What you’ll do
- Own backend modules from design through deployment and production monitoring.
- Create scalable APIs and microservices for high-throughput enterprise applications.
- Improve MongoDB schemas, indexes, and query performance.
- Build secure, fault-tolerant, observable services.
- Investigate production incidents and implement preventive fixes.
- Mentor junior engineers and influence engineering decisions.
What they’re looking for
- 5 to 8 years of backend experience with distributed systems.
- Deep Node.js knowledge, including asynchronous and event-driven patterns.
- MongoDB design, replication, indexing, and tuning experience.
- REST API, algorithms, data structures, and system-design skills.
- Cloud and container deployment exposure.
- Knowledge of authentication, authorization, and OWASP principles.
Nice to have
- GraphQL experience.
- AI/ML product or enterprise SaaS experience.
- Open-source contributions or technical writing.
- Microservice orchestration and distributed tracing knowledge.
What’s on offer
- A full-time role working on enterprise generative-AI products.
- Work on technical architecture and systems used at large scale.
Questions about this role
How much experience is required?
The posting asks for 5 to 8 years of backend engineering experience.
What backend technology is central to the role?
Node.js is the primary backend technology named in the requirements.
Is MongoDB experience required?
Yes. The posting requests experience with MongoDB schema design, indexing, replication, and tuning.
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