Overview

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 general leaders like Audi, BMW, Eli Lilly, and Siemens to operationalize AI and drive innovation at scale. At HiveMQ, our culture is Effortless → Empowered → Relentless.

Responsibilities

- 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.

Qualifications

- 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.
- 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

Compensation Range: €58K - €120K

Equal Employment Opportunity

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.

📌 Senior Software Engineer C# - FLEXIBLE WORKING (Madrid) - Hivemq
🏢 Hivemq
📍 Madrid