IoT Developer / ThingsBoard Engineer (m/f/d)

At AXO, we are empowering the rail industry by building the best possible predictive

analytics solutions for our customers. We strive to help industrial companies improve

their maintenance and performance decision-making in a data-driven world. We

have built RAILOX, the AXO Predictive Maintenance System for rail switches.

We are seeking an IoT Developer with expertise in ThingsBoard to design,

customize, and maintain our IoT platform. The ideal candidate will have strong

knowledge of IoT protocols, backend development, and dashboard customization,

enabling seamless integration of devices, data processing, and visualization.

IoT Platform Development & Customization

• Configure and customize ThingsBoard dashboards, widgets, and rule engine to meet business needs.
• Develop custom ThingsBoard widgets (JavaScript, AngularJS, HTML, CSS).
• Extend ThingsBoard functionality via REST API, microservices, or plugins.

Device & Data Integration

• Connect IoT devices via MQTT, HTTP, or CoAP protocols.
• Manage device profiles, attributes, and telemetry streams.
• Maintain device provisioning and security (certificates, tokens).

Data Processing & Analytics

• Configure telemetry storage and aggregation (PostgreSQL / TimescaleDB).
• Implement rule chains for alarms, notifications, and data filtering.
• Support integration with external analytics platforms (Python, Grafana, etc.).

Backend & API Development

• Work with ThingsBoard REST API and SDKs (Python/Java) for automation and integration.
• Develop custom microservices when additional business logic is required.

Required Skills & Experience

• Strong knowledge of IoT protocols (MQTT, CoAP, HTTP).
• Experience with ThingsBoard platform (Community or PE).
• Proficiency in JavaScript, AngularJS, HTML, CSS (for widget development).
• Experience with REST APIs and integration (Python or Java).
• Familiarity with databases (PostgreSQL, TimescaleDB).
• Experience with Linux server administration, Docker, Kubernetes.
• Understanding of message brokers and streaming (Kafka, Redis).

Nice-to-Have Skills

• Java (Spring Boot) for ThingsBoard backend extensions.
• Python (pandas, NumPy) for data analysis and custom integrations.
• Experience with DevOps tools (CI/CD, Ansible, Terraform).
• Knowledge of AI/ML for IoT data analysis (predictive maintenance, anomaly detection).
• Deploy and maintain ThingsBoard in Docker environments.
• Manage security (TLS/SSL, VPNs, firewalls).
• Monitor performance and scalability (Kafka, Redis, Prometheus).
• Experience in cloud platforms (AWS IoT, Azure IoT, GCP IoT).

Education & Experience

• Bachelor’s degree in Computer Science, Electrical Engineering, or related field (or equivalent experience).

• 3+ years of experience in IoT development or system integration.

• Previous work with ThingsBoard or similar IoT platforms strongly preferred.

• Permanent full-time contract

• Competitive salary

• Flexible working hours and hybrid work options

• Collaborate with top-tier experts in a cutting-edge environment

• Be part of an agile, cross-functional and dedicated team

• Take full ownership and responsibility for your projectsWork within a flat hierarchy with international, open-minded colleagues

We value diversity and therefore expressly welcome all applications - regardless of

gender, nationality, ethnic and social origin, religion/belief, physical abilities, age,

sexual orientation and identity. We look forward to receiving your application.