Backend Developer
Date Posted
10 December, 2025
Salary Offered
$12,000 — $25,000 yearly
Do you want to join a fast-growing climate tech startup with real impact?
About Coulomb
At Coulomb AI, we envision a future powered by the seamless integration of AI and Battery Technologies, creating a powerful synergy to combat climate change. We build category-leading software that can significantly improve battery lifespan and performance by employing advanced predictive analytics, real-time monitoring, and adaptive battery management algorithms.
Coulomb is headquartered in San Francisco with its development and research center in Bangalore. Founders Khushboo Shrivastava and Santanu Mondal are alumni of IIT Bombay and have first-hand experience working on first-generation Electric Vehicles at General Motors. We are backed by some of the best climate tech investors in the world, including Y Combinator, Harvard Management Seed Capital, CSVE Ventures, and prominent Silicon Valley-based Angels.
We already have a global presence with customers in 5 countries across UK, US, APAC and India
Yet, we’re still at the start of our journey, and we want exceptional people to join us!
About the Role
What it means to be an early engineer
Being part of the founding team, you will have the opportunity to shape the future of sustainable energy. Together, we’re going to face the hardest technical challenges this journey has to offer head-on. As the team grows, you’ll be the battle-hardened expert that everyone looks to for guidance. Your role will be pivotal in building a mission-critical analytics platform that encompasses predictive ML models, real-time analytics, and user-friendly dashboards.
As a Senior Backend Engineer, here’s what you’ll be doing
- Develop data transformation models for real-time ETL processes using Pandas & Polars
- Design and Develop secure and scalable API using Flask with access control, and pagination.
- Implement optimizations and enhancements to improve API performance, including reducing load times and minimizing resource consumption
- Design and maintain database schemas for optimal data storage and retrieval
- Develop and maintain a comprehensive suite of unit tests, integration tests, security tests, and end-to-end tests for the API
- Ensure faster release cycles using proper build, test, and deployment strategies
We are excited about you because you have:
- Proven 2+ years of experience in designing and implementing scalable APIs using frameworks such as Flask/Django with a focus on performance optimization
- Thorough understanding of REST API
- Proficiency in implementing and maintaining a robust testing strategy
- Experience with various DBs like MySQL, PostgreSQL, Redis, etc.
- Experience in working with cross-functional teams to understand data requirements and implement effective data models
- Expertise in cloud infrastructure deployment and building monitoring framework in AWS, GCP
- Strong commitment to writing clean, maintainable, and well-documented code.
- Familiarity with tools and methodologies for code analysis and profiling.
You’ll be a great fit if:
- Previously worked in a startup environment and have a high degree of ownership and appetite for ambiguity
- Like being a part of a high-performing team focussed on fast-paced execution at the same time detail-oriented
- Experience in real-time data processing using efficient ETL approaches
- A relentless desire to solve customer problems and chase down answers


Coulomb AI





