Staff Engineer, Software (Backend)

Enphase Energy is a global energy technology company and a leading provider of solar, battery, and electric vehicle charging products.

Founded in 2006, our innovative microinverter technology revolutionized solar power, making it a safer, more reliable, and scalable energy source.

Today, the Enphase Energy System enables users to make, use, save, and sell their own power.

Enphase is also one of the most successful and innovative clean energy companies in the world, with more than 80 million products shipped across 160 countries.

Join our dynamic teams designing and developing next-gen energy technologies and help drive a sustainable future!

This role at Enphase requires working onsite 3 days a week, with plans to transition back to a full 5 day in office schedule over time.

For our EV Charging business, we seek experienced IOT/ Cloud Engineer who will be able to work across multiple products to lead effective product architecture and development

Hands-on in various technologies, Mentor team of Engineers, on day-to-day duties as well as work with leadership team on strategic initiatives

Provide hands-on technical expertise to design, engineer, deploy, and deliver including driving improvements in technical architecture, standards, and processes.

Partner with Engineering, Product Management, Program Management and Professional Services to ensure required technology upgrades/migrations/ and builds are well understood and planned into roadmaps.

• Design, build, and maintain high-throughput Java + Spring Boot microservices serving millions of devices
• Develop RESTful APIs (JSON/XML) secured with JWT and OAuth 2.0
• Work with MongoDB as the primary data store, designing schemas and queries for scale
• Build and consume event-driven architectures using Kafka, AWS SQS/SNS, and Kinesis
• Containerize services with Docker and deploy on AWS EKS (Kubernetes) via CI/CD pipelines
• Collaborate on system design for high availability, disaster recovery, scalability, and performance
• Write clean, testable, well-documented code with strong unit and integration test coverage
• Participate in code reviews, architectural discussions, and sprint planning
• Own features end-to-end — from design and implementation through deployment and production monitoring
• Troubleshoot production issues, perform root-cause analysis, and drive reliability improvements
• Leverage AI-powered development tools for code generation, automated code reviews, test creation, technical planning, and debugging — continuously improving team productivity and code quality

Who you are and what you bring:

• B.E./B.Tech in Computer Science (or equivalent) from a reputed institution
• 8+ years of hands-on back-end development experience
• Strong proficiency in Java (8+) and the Spring ecosystem (Spring Boot, Spring Data, Spring Security)
• Solid experience with NoSQL databases (MongoDB preferred) — schema design, indexing, aggregation pipelines
• Practical experience with AWS services (EC2, S3, SQS, SNS, Lambda, EKS, CloudWatch, or similar)
• Familiarity with Docker, Kubernetes, and container orchestration
• Experience with Git, Bitbucket/GitHub, and CI/CD tooling (Jenkins, GitHub Actions, or similar)
• Understanding of RESTful API design principles, versioning, and security (OAuth 2.0, JWT)
• Strong organizational skills — ability to define, track, and deliver work independently
• Excellent problem-solving, critical thinking, and analytical skills
• Clear, concise written and verbal communication
• Experience with event streaming platforms — Kafka, AWS Kinesis
• Working knowledge of AWS Lambda and serverless architectures
• Understanding of WebSockets and persistent connection protocols (e.g., OCPP)
• Knowledge of networking fundamentals — TCP/IP, TLS, load balancing, connection keep-alive, timeout tuning
• Experience with AWS ALB/NLB, target groups, health checks, and sticky sessions
• Exposure to Elasticsearch / OpenSearch for search and analytics workloads
• Familiarity with SQL databases (MySQL/PostgreSQL) as a secondary skill
• Experience with front-end technologies (React, JavaScript/TypeScript) — full-stack capability is a plus
• Knowledge of caching layers (Redis, ElastiCache)
• Understanding of observability — structured logging, distributed tracing, metrics (Datadog, ELK, Prometheus)
• Familiarity with shell scripting (Bash) for automation, debugging, and operational tasks
• Exposure to OCPP (Open Charge Point Protocol) or EV/IoT domain
• Experience using AI coding assistants (GitHub Copilot, Windsurf/Cursor, ChatGPT, Claude) for development, code review, and technical planning
• Experience working in renewable energy, clean tech, or IoT companies
• You thrive in a fast-paced environment with ambiguity and evolving priorities
• You take ownership — proposing solutions, not just implementing tickets
• You care about code quality — clean architecture, meaningful tests, thoughtful PR reviews
• You can context-switch across projects without losing momentum
• You communicate status, risks, and trade-offs proactively to the team