Senior Fullstack Engineer (Node.js)

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.

HiveMQ’s Vision for this role 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.

You will…

• Architect, build, and maintain the HiveMQ platform software for massively-scalable global IoT deployments
• 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…

• Deep knowledge of Typescript and Nodejs and their ecosystem, with hands-on experience in backend development
• Great interpersonal skills and the ability to effectively coordinate and work in a team
• A strong sense of ownership, a pragmatic problem-solving methodology, and the drive to see projects through to successful completion
• A strong software engineering background (5+ years) and experience in architecting, developing and delivering modern and robust Cloud native applications
• Profound experience with the web framework React, reactive state management systems and with Chakra UI being a plus
• Experience with A/B-Testing and working with feature-toggles is a plus.
• A proven track record of creating and maintaining robust CI/CD pipelines (e.g., using GitHub Actions) and proficiency in GitOps principles and tools such as ArgoCD and Helm.
• Experience with diverse architectures, event-driven systems, and designing resilient inter-service communication using technologies like gRPC and reactive programming.