Software Development Engineer 3

• Location: Gurgaon (5 Days WFO)
• Experience: 59 years
• Education: BE/B.Tech from Tier 1 institutions (IIT, NIT, DTU, NSUT)
  

About Leena AI

Leena AI is an Agentic AI B2B SaaS Enterprise solutions company helping Fortune 500 enterprises transform employee experience. Our platform enables HR, IT, and Finance teams to resolve 70% of employee tickets automatically by centralizing knowledge and executing actions across enterprise systems making service delivery faster, smarter, and more efficient.Were backed by leading investors, work with 400+ enterprises globally, and are shaping the future of enterprise productivity.

Why this Role

As an SDE3 at Leena AI, youll be a technical owner driving architecture, scalability, and performance for products used by hundreds of thousands of employees worldwide. You wont just write code youll solve complex distributed systems problems, design for scale, and mentor other engineers.

What Youll Do/Responsibilities

• Own modules end-to-end from system design to deployment and monitoring in production.
• Design scalable APIs & microservices that power real-time, high-throughput, enterprise-grade applications.
• Collaborate with Product, AI, and Frontend teams to translate business needs into high-performance technical solutions.
• Optimize data storage and queries for performance & reliability in MongoDB and other persistence layers.
• Build fault-tolerant, secure, and observable systems that can handle millions of requests daily.
• Champion engineering best practices clean code, test coverage, performance benchmarks, and CI/CD automation.
• Troubleshoot complex production issues, conduct RCA, and implement preventive solutions.
• Mentor junior engineers and influence technical decision-making across teams.
  

What Were Looking For

• 59 years of backend engineering experience in high-scale, distributed systems.
• Deep expertise in Node.js (event-driven architecture, async patterns, performance tuning).
• Solid understanding of MongoDB schema design, indexing, replication, and performance tuning.
• Experience with RESTful API design (GraphQL experience is a plus).
• Strong foundation in data structures, algorithms, and system design.
• Exposure to cloud platforms (AWS/GCP/Azure) and containerized deployments (Docker/Kubernetes).
• Familiarity with message queues (Kafka, RabbitMQ, SQS, etc.) for async and event-driven workflows.
• Understanding of security best practices authN, authZ, OWASP principles.
• Proficiency in at least one scripting language (Python, Bash, etc.).
• Proven ability to own projects and deliver in ambiguous, fast-paced environments.
  

Nice To Have

• Experience in AI/ML-powered products or enterprise SaaS.
• Contributions to open-source projects or technical blogs.
• Knowledge of microservice orchestration and distributed tracing.
  

Whats In It For You

• Work with cutting-edge Gen AI tech in real-world enterprise environments.
• Solve deep technical challenges at scale.
• Collaborate with brilliant engineers from top-tier backgrounds.
• Influence the technical roadmap of a high-growth product company.
  

If youre passionate about building high-impact, high-scale systems and want to shape the future of work, join us at Leena AI.
Skills: node.js,mongodb,restful apis,graphql,python,bash