About Waltero
Waltero is a growing tech scale-up in Lund with a vision to drive resource efficiency by empowering our customers with actionable insights. Our journey began in the water metering industry, but we are now expanding into energy and other sectors where AI deployed on edge devices can create real value. By combining advanced sensor technology with AI and connectivity solutions, we transform data collection and analysis, enabling smarter resource management.

Read more about Waltero.

About the Team
We are a close-knit team of five developers with diverse competencies, working collaboratively in an environment where trust, support, and enjoyment are key. Each morning, we start with a stand-up meeting to align our goals, support each other, and stay informed on all ongoing tasks. Our open workspace fosters seamless communication, and every team member takes full ownership of their development tasks, from initial requirements to deployment of high-quality, customer-ready solutions.

Our Products
At the heart of our innovation is the W-Sensor, an advanced device utilizing a camera and AI to capture and process images, converting them into meaningful data. The sensor connects via LTE-M or WiFi, transmitting data securely to our cloud-based backend, where it becomes accessible to customers. Our ecosystem extends beyond the sensor to include a comprehensive infrastructure featuring a training pipeline, AWS IoT Core-based device management, cloud databases, a web frontend, and robust cloud APIs for seamless device management and data access. Every aspect of our technology stack is developed in-house, ensuring full control over innovation and quality.

What You Will Do
The ESP32-based W-Sensor is at the heart of our technology, and as an Embedded Developer, you will play a key role in shaping its firmware. More specifically, you will:

• Develop and optimize firmware using C/C++ and the Espressif toolchain.
• Ensure reliable connectivity over LTE-M and WiFi in diverse environments worldwide.
• Optimize on-device AI processing for image analysis while maintaining a 10-year battery lifespan.
• Drive new feature development, as our sensor is still evolving with many functionalities yet to be built.
• Maintain and enhance existing code, ensuring robustness and reliability.
• Support customers and collaborate closely with hardware and software teams to create a seamless user experience.

This role offers a unique opportunity to work on cutting-edge IoT technology in a fast-moving environment. If you thrive on problem-solving, innovation, and building from the ground up, we’d love to hear from you!

Key Qualifications

• University degree in Computer Science, Electronics, Engineering Physics, or a related field. Equivalent industry experience is also considered.
• 5+ years of development experience, primarily in embedded C/C++.
• Hands-on experience with LTE-M and/or WiFi in embedded systems.

We are looking for an experienced embedded developer with a strong background in connected IoT devices. If you are passionate about cutting-edge embedded systems and thrive in a fast-paced environment where you take full ownership of your work, this role is for you.

Skills & Mindset

• Ownership & Initiative – You take full responsibility for tasks, even in uncertain situations.
• Problem-solving – A structured approach to tackling AI challenges.
• Collaboration – You thrive in a team-oriented environment.
• Agility – Ability to develop quickly and iteratively improve functionality.
• Customer focus – Ensuring our solutions meet real-world needs.
• DevOps experience – Knowledge of deploying and maintaining AI solutions.
• Cloud expertise – Experience with Cloud platforms is a plus.

Why Join Waltero?

• Make an Impact – Contribute to the future of resource efficiency through AI-driven IoT solutions.
• Collaborative Culture – Be part of a supportive team where trust, innovation, and collaboration are key.
• Ownership & Growth – Take full responsibility for your work and develop your expertise in a fast-paced scale-up environment.
• Cutting-Edge Technology – Work with advanced AI models, edge computing, and cloud-connected IoT solutions.

Application & Contact

This recruitment is conducted in collaboration with Agardh Recruitment & Consulting. If you have any questions about the role, feel free to contact Pernilla Agardh at 072-249 94 80.

We look forward to your application!