(Senior) Software Engineer Industrial IoT

• Design and implement APIs and data processing workers within our KINEXON OS ecosystem
• Create and evolve backend architectures for scalability and reliability
• Own and plan larger coding projects (refactoring, new features) that require coordination across multiple teams
• Develop and maintain backend services in C++, Go, and Python
• Ensure robust automated testing and CI/CD integration in close collaboration with QA engineers
• Contribute to observability, performance tuning, and security improvements
• Collaborate closely with frontend, DevOps, and product teams to deliver end-to-end solutions

OUR TECH STACK

Our diverse tech stack allows us to build robust and efficient services:

• Backend: C++, Go, Python, Node.js
• Frontend: Angular, TypeScript
• Messaging: Kafka, MQTT
• Database: PostgreSQL
• Containerization: Docker, Docker Swarm, potentially Kubernetes
• CI/CD: GitLab
• Observability: Prometheus, Grafana
• OS: Linux

For this opportunity, we are looking for someone with:

• Completion of a university degree or comparable qualification
• Solid backend development experience in a compiled, strongly typed language (e.g. C++ or Go); openness to Python & Node.js for some services
• Comfortable reading and learning code in other languages in the stack
• Experience with Kafka (producers/consumers, topics, partitions, schema evolution, error handling, monitoring)
• Strong SQL skills (PostgreSQL): schema design, query optimization, indexing, transactions
• Experience with test automation and integrating tests into CI/CD pipelines
• Containerization: building/debugging Docker images, orchestration with Docker Swarm; Kubernetes basics a plus
• GitLab CI/CD: writing and maintaining pipelines, build/test automation
• Linux: solid command-line skills, process/network debugging, scripting
• Understanding of distributed system fundamentals: message ordering, fault tolerance, backpressure, eventual consistency
• Clear communication in English (German optional)
• Hands-on experience using GenAI tools for coding and a strong curiosity about AI-driven developer productivity
• Nice-to-have:

• Frontend familiarity (Angular/TypeScript) for debugging and small changes
• Knowledge of other pub-sub or in-memory solutions (Redis, NATS, ZeroMQ)
• Kubernetes hands-on deployment, Helm basics
• Tracing/observability tools (OpenTelemetry, Jaeger, Zipkin, Prometheus/Grafana, ELK/EFK)
• Security basics: secrets management, TLS in service communication

Pulled from the full job description

• Flexible schedule, At KINEXON, you will meet people with a similar mindset who are passionate about innovative technologies and love to master new challenges in a team, as well as create great products.

Become part of our team and enjoy the following benefits:

• #Freetime 30 days (DE) / 20 days (US) paid vacation to refuel your energy (for full-time employees)
• #WeCare - take your time off for the family (parental leave etc.)
• #WorkingHours - Early bird or night owl - you can choose your flexible work hours.
• #FlexibleLocation - we work with a hybrid and remote model.
• #OneTeam - We enjoy spending time together at regular team and company events.
• #OnTop - further benefits selected by you annually out of a range of benefits that we offer (mobility, sports, vacation budget, training budget and more)