Senior Software Engineer

HiveMQ is the Industrial AI Platform helping enterprises move from connected devices to intelligent operations. Built on the MQTT standard and a distributed edge-to-cloud architecture, HiveMQ connects and governs industrial data in real time, enabling global leaders like Audi, BMW, Eli Lilly, and Siemens to operationalize AI and drive innovation at scale.

At HiveMQ, our culture is Effortless → Empowered → Relentless. We make the complex simple, act with confidence and ownership, and never stop pushing the boundaries of what’s possible. Join us to power the future of intelligent industry.

You will

The HiveMQ Dev team is dedicated to ensuring application resiliency and delivering the HiveMQ software platform in the highest quality. As a member of the HiveMQ development team, you will design, develop, and deliver solutions that enhance the scalability, availability, and efficiency of the HiveMQ software portfolio. We work with agile principles and believe ruthless automation and smart use of AI tools enables us to move fast while continuously meriting the trust that our customers place in us.

• Architect, build, and maintain the HiveMQ platform software for massively-scalable global IoT deployments.
• Create self-healing software systems with state-of-the-art tools.
• Develop and implement concurrent, maintainable, and performant algorithms.
• Build, maintain and refactor existing codebases, extend APIs, improve test coverage and address security vulnerabilities.
• Work with profilers, benchmarking, and state analysis tools.
• Leverage AI tools such as Claude Code, GH Copilot.
• Identify and eliminate performance bottlenecks.
• Solve edge cases and find the common truths behind them.

You have

• Great interpersonal skills and the ability to effectively coordinate and work in a team.
• A high sense of ownership and take pride in the work you accomplish.
• Experience developing and shipping business relevant software.
• Experience writing reliable and scalable software.
• A strong software engineering background (5+ years) and profound experience in architecting, developing and delivering modern and robust backend applications running in a JVM.
• Experience using Git, different testing approaches, and CI/CD tools.
• Ability to debug complex problems to find and implement solutions for the future.
• Experience designing high-throughput data-intensive applications.
• You have experience with different architectures, event-driven systems, and designing resilient inter-service communication. Technologies like NoSQL, Kafka, Kubernetes, ArgoCD are no strangers to you.

Compensation Range: €58K - €120K

Informations About Our Job Advertisements: Job advertisements of HiveMQ GmbH are always directed at female, male and various applicants, regardless of age, gender, religion, sexual identity, disability, race, ethnic origin, world view, etc. The selection of a candidate is exclusively based on qualifications. For organisational reasons, we cannot return application documents and cannot reimburse any expenses that you incur during the application process.

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