Embedded Developer with Connectivity Experience

Company Overview

Waltero is a fast growing tech scale-up based 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.

By enabling smart resource management and innovative IoT deployments, we shape the futu re of environmental responsibility and ensure industrial advancement from the ground to the boardroom.

You’ll join a tight-knit team of five developers with broad complementary skills. We work in a culture built on 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.

At the heart of our innovation is the W-Sensor – a smart 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.

As our new Embedded Developer you will play a key role in developing and optimizing the firmware for the W-Sensor, built on ESP32.

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!

• 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.

• Excellent work-life balance.

• Popcorn Fridays.

• Breakfasts on Tuesdays.

• Gyms located on site

• Running group every Wednesday

• A dynamic and supportive work environment.

• Opportunities to influence and contribute to the company’s growth.

• Competitive salary and benefits.

• A supportive, purpose-driven environment that invests in your success.

• Opportunities for growth—personally, professionally, and creatively.

We’d love to hear from you! Please send us your CV along with a short note on why you’d be a great fit for Waltero. We welcome individuals of all backgrounds and experiences to apply. Waltero is committed to building a workplace 
where different perspectives are valued, collaboration flourishes, and every team member can contribute fully.

Johan Nordén: VP of Research and Development
johan.norden@waltero.com | +46 70 961 57 75


Apply today – we’re excited to meet you.