Jobs Companies Qvantel Software Developer (Java - IoT)

About this Software Developer (Java - IoT) role at Qvantel

Qvantel · Onsite · Hyderabad

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

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About Qvantel

Qvantel, established in 1995, is a leading provider of digital BSS and monetization software for the telecommunications and digital services industry. Qvantel Flex is an AI-driven BSS and monetization suite enabling operators to launch new offers rapidly using low/no-code configuration and automation. In 2025, Qvantel expanded its operations and portfolio with the acquisition of charging and BSS supplier Optiva. Qvantel supports 70+ operators in over 40 countries, powered by 1,200+ specialists across all global regions. www.qvantel.com ​​​

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