Mobile App Software Engineer (Backend/Cloud)

>> 360Watts: an energy-tech startup

You will lead the development of an Energy Management mobile-first B2C app that connects solar generation, battery storage, and smart-home appliances into a unified interface empowering users to monitor, optimise, and automate their energy usage at homes. The product vision spans from AI-integrated control (phase 1) and will transition to AI-native agents (phase 2).

>> Roles & Responsibilities

We look for an experienced Software Lead who will own the overall mobile app development incl. architecture, backend, data and cloud infrastructure. You'll work closely with our IoT, ML and solar engineers, as well as an UI/UX designer to bring the final product to market.

This is a high-ownership, builder-first role with strong potential to grow into AI-Software Lead.

1)

• Design theend-to-end architectureof the Energy Management Software (EMS) such as backend/frontend, data, cloud, and API ecosystem
• Define modular components for IoT device sync, ML model inference, mobile interfaces, and control logic
• Ensure scalability, security, and maintainability across backend and API layers
• Own architectural decisions as the product evolves from AI-integrated to AI-native agentic application

2) Backend development + Cloud:

• Design, implement and maintain cloud-based backend systems using Python (FastAPI) or Node.js (NestJS preferred)
• Build modular, secure REST APIs for real-time data ingestion, device control, alerts, and AI model integration
• Design time-series data schema and store telemetry data using PostgreSQL/TimescaleDB
• Deploy containerised services (Docker) and CI/CD pipelines to AWS or GCP
• Handle role-based access, API observability, logs, uptime metrics, and system scaling

2) Additional:

• Build or contribute to React Native mobile app (ideal if you have mobile frontend experience)
• Help develop web-based internal tools or dashboards (React/Next.js)

>> Experience & Skillsets required

• 23 years experience in full-stack or backend/cloud software development
• At least 1 production-ready product or 2-3 MVP delivered to end users SaaS or mobile app
• Prior lead or support role in system design or architecture for a SaaS/mobile/IoT product
• Experience in backend development with Python (FastAPI) or Node.js/NestJS
• Experience designing and managing PostgreSQL databases with telemetry or analytics data
• Experience with API versioning, CI/CD, Docker, and cloud deployment (AWS)
• Exposure to ML model integration (serving endpoints, forecasting APIs, etc.)
• Experience working in small, fast-moving teams (startup or lean product development teams)

>> Job details

• Location: Coimbatore (100% On-site)
• Start Date: 01.01.2025 or later
• Compensation: 4.2 to 6LPA. Further negotiable post 3-month probation period, upon proving with results and developing strong skillsets that are required for the role.

Share your GitHub/portfolio with relevant projects (especially mobile, ML, or API integrations) - highly preferred !!

Apply on or before 25.12.2025