We are hiring a Senior Java Backend Developer to build and scale backend platforms powering smart lighting systems and EV charging infrastructure. You will work on IoT-driven, cloud-connected systems that manage devices, energy consumption, and real-time data.
Key Responsibilities
- Design and develop backend services using Java 21, Spring Boot, and microservices architecture
- Build scalable platforms for smart lighting control systems and EV charger networks
- Develop and manage APIs for device communication, mobile apps, and dashboards
- Handle real-time data processing from IoT devices (lighting controllers, EV chargers)
- Integrate with protocols and systems like OCPP (EV charging), MQTT, or WebSockets
- Implement energy monitoring, billing, and usage analytics systems
- Ensure high availability, scalability, and security of backend systems
- Collaborate with hardware, firmware, and IoT teams
- Optimize system performance for high device volumes and low latency
- Participate in architecture decisions and mentor junior engineers
Required Skills & Qualifications
- 8+ years of backend development experience in Java
- Strong expertise in Spring Boot, Spring Cloud, and microservices
- Experience building high-throughput, distributed systems
- Hands-on with REST APIs, WebSockets, and event-driven architecture
- Experience with IoT platforms or device integration
- Knowledge of EV charging protocols (OCPP) or similar is highly preferred
- Familiarity with MQTT, Kafka, or other messaging systems
- Strong database experience (PostgreSQL, MySQL, MongoDB, or Timeseries DBs)
- Experience with Docker, Kubernetes, and CI/CD pipelines
- Understanding of authentication, security, and data protection
Good to Have
- Experience in smart lighting systems, building automation, or energy management
- Exposure to cloud platforms (AWS IoT, Azure IoT, GCP)
- Knowledge of billing systems, payment integrations, or energy metering
- Familiarity with edge computing or embedded systems integration
Domain Exposure (Highly Preferred)
- EV charging networks / infrastructure platforms
- Smart city / smart lighting solutions
- Energy management systems (EMS)
- IoT-based industrial or consumer products
Key Competencies
- Strong problem-solving and system design skills
- Ability to work across software + hardware ecosystems
- Ownership mindset and ability to lead backend modules
- Excellent communication with cross-functional teams
Why Join Us
- Work on cutting-edge EV and smart energy technologies
- 1118 lakh (LPA) salary range
- High-impact role in a fast-growing sustainability domain
- Opportunity to build scalable platforms from the ground up
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