Lead Backend Developer - Python Technologies

Job Title : Lead Backend Developer (Python, FastAPI & MongoDB)

Location : Bengaluru, India

Position Summary :

We are looking for a Lead Backend Developer with 4+ years of professional experience in Python-based development, especially using FastAPI and MongoDB.

The ideal candidate is skilled in building and maintaining scalable, high-performance back-end services and APIs, has strong understanding of modern database design (SQL & NoSQL), and has experience integrating backend services with cloud platforms.

Experience or interest in AI / ML projects is a strong plus, as our products often interface with LLMs and real-time AI Responsibilities :

• Design, build, and maintain robust backend services using Python and FastAPI.
• Develop and maintain scalable RESTful APIs for internal tools and third-party integrations.
• Work with MongoDB, PostgreSQL, and Redis to manage structured and unstructured data efficiently.
• Collaborate with frontend, DevOps, and AI / ML teams to deliver secure and performant backend infrastructure.
• Implement best practices in code architecture, performance optimization, logging, and monitoring.
• Ensure APIs and systems are production-ready, fault-tolerant, and scalable.
• Handle API versioning, documentation (Swagger / OpenAPI), and error management.
• Optimize queries, indexes, and DB schema for high-performance data access.
• Maintain clean code with emphasis on object-oriented principles and modular design.
• Troubleshoot production issues and deliver timely fixes and :
• Overall Experience : 4+ years in backend software development.
• Python : Strong proficiency with object-oriented programming.
• Frameworks : Hands-on experience with FastAPI (preferred), Django.
• Databases :

1. MongoDB : Experience with schema design, aggregation pipelines, and indexing.

2. Familiarity with SQL databases (PostgreSQL / MySQL).

3. Experience with Redis and optionally Supabase.

(ref : hirist.tech)