Software Developer (Java - IoT)

Job description

It's fun to work in a company where people truly BELIEVE in what they're doing! We're committed to bringing passion and customer focus to the business. Job Summary Key Responsibilities : 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 Required skills : B.E./B.Tech or ME/M.Tech in Computer Science (or equivalent) from top 150 Nirf engineering colleges. 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