IoT Backend Developer

### About Us

MEAtec is a fast-growing deep tech company developing AI-driven battery analytics, digital battery passport solutions, second-life decision-making tools, lifecycle management platforms, and AI powered BMS technologies for electric vehicles and energy storage systems. With a strong focus on sustainability and the circular economy, we collaborate with leading academics, industry partners, and international organizations to advance battery intelligence and next-generation mobility across Europe and beyond.

### Position Overview

We are looking for an IoT Backend Developer to build and scale the data backbone of our battery platforms. In this role, you will work extensively with **ThingsBoard** \- our core IoT platform for device connectivity, dashboards, rule engine, and more, and design reliable, high-throughput **data ingestion** pipelines that bring device and battery telemetry into our systems. Since ThingsBoard is built on **Java** , you will also extend and customize it at the code level. You will collaborate closely with backend, DevOps, and product teams to deliver robust end-to-end IoT features, from device data to actionable analytics.

### Key Responsibilities

• Design, build, and maintain data ingestion pipelines for high-volume IoT and battery telemetry (MQTT/HTTP/CoAP), ensuring reliability and performance.
• Configure, extend, and customize ThingsBoard device provisioning, rule chains, dashboards, integrations, and custom widgets.
• Develop and extend ThingsBoard components in Java (rule nodes, transport, and custom extensions) to meet product needs.
• Design and implement backend services and APIs that expose IoT data to downstream applications and analytics.
• Optimize storage and processing of time-series data for scalability and low latency.
• Integrate backend services with edge devices and hardware gateways, including CAN/CAN FD interfaces, industrial communication units, and embedded data acquisition systems.
• Troubleshoot device connectivity, hardware-to-cloud communication, data ingestion, and end-to-end data-flow issues.
• Collaborate with embedded, hardware, backend, DevOps, and product teams to define telemetry interfaces, protocols, data formats, diagnostics, and secure edge-to-cloud workflows.
• Collaborate with cross-functional teams and contribute to code reviews, CI/CD, and continuous improvement.

### Development Skills

• Bachelor’s degree in Computer Science, Software Engineering, or a related field (Tier 1 or Tier 2 universities preferred).
• 1-3 years of hands-on backend development experience in production environments.
• Working knowledge of **ThingsBoard** (device management, rule engine, dashboards, integrations) is required.
• Solid **Java** development skills, with the ability to read, extend, and customize a Java-based platform.
• Experience with **data ingestion** and IoT protocols (MQTT, HTTP, CoAP) and message brokers (Kafka/RabbitMQ).
• Experience with time-series and relational databases (PostgreSQL, Cassandra, or similar).
• Proficiency with Docker for containerization; familiarity with CI/CD pipelines and cloud services (AWS) is a plus.
• Familiarity with embedded systems, edge gateways, CAN-based communication, and hardware-to-cloud integration is highly preferred.
• Strong problem-solving, debugging, and communication skills, with attention to details.

### What We Offer

• Hands-on experience in a collaborative and fast-paced environment.
• Opportunities to work on impactful projects that drive innovation.
• Competitive salary and benefits package.
• Supportive team culture within an international work environment.
• Professional development and mentorship opportunities.

Join us at MEATEC and take the next step in your IoT development career!