Your mission Your role You’ll be part of a small team of software developers building the factory of tomorrow. Your job will be to refactor and optimize existing software and the development of new tools and services from footscan via production to the consumer. As a part of our development team, you will find solutions for problems you never heard of and extend your knowledge daily. As a company specializing in both hardware and software, we value close collaboration within our team. Therefore, we are seeking candidates who can join us at our office in Hamburg. While a fully remote position is not feasible, we do offer the flexibility of home office days. Your profile Your skills and experience Significant knowledge and experience in developing firmware for microcontrollers using C and C++, along with an understanding of RTOS and usage of bus interfaces (CAN, UDS, USB). System integration, testing, and implementation of multiple sensors and actuators from the microcontroller level up to the user interface. Basic knowledge in machine tool engineering, machine construction, and technical systems. Basic knowledge of the design of components and assemblies in SolidWorks, including the creation of production-oriented drawings following machinery directives and GMP. Significant knowledge in the development and implementation of Klipper, including its toolset, API's, services, and web interfaces. Basic knowledge of electrical circuits, systems, and boards. Essential knowledge of the administration of Linux servers and the use of technologies like Docker, Ansible, ssh / scp, and other development tools. Programming languages: C, C++, Python, JavaScript, Rust. Comprehensive web development skills including React, Vue, Figma, as well as basics in usability, UI Development, and usage RESTful Web APIs are a great addition Why us? Join us We are looking for talented and passionate Full Stack Developers (all genders) to join us in our R&D production facility in Hamburg, Germany. We are still at an early stage, so you can directly influence the journey. Along the way, you’ll gather singular experiences and memories, if not also make history. Team and work-life At Zellerfeld, you will find a multidisciplinary team of engineers, SW and HW specialists, entrepreneurs, designers, and students with a common passion. We embrace contrarian thinking, humility, pushing limits, and improving ourselves. We utilize a flat hierarchy, and we want your voice to be heard. We also care about bonding because we want to be a tight-knit community, so be prepared to spend quality time with everyone, including the CEO About Zellerfeld Zellerfeld is developing the first 3D printing technology for entire shoes at the push of a button, and our goal is to put printed shoes on every foot in the world. We’re a team of passionate engineers creating exciting technologies, and we’re always questioning the status quo, to disrupt the broken footwear industry. We are backed by an amazing group of founders, influencers, and celebrities, who also act as our early beta testers and evangelists. We think long-term, and we intend to make a lasting positive impact on the footwear industry and the entire world. Diversity We are committed to diversity, which we believe creates a better culture and product. We care about your contribution, not your age, race, religion, gender, roots, etc. About us Zellerfeld is revolutionizing the footwear industry with the world’s first 3D-printing technology for fully customizable shoes. Our goal is simple: printed shoes on every foot. We’re a passionate team of engineers, designers, and innovators, questioning the status quo and disrupting traditional manufacturing processes. Backed by founders, influencers, and celebrities who believe in our vision, we’re committed to making a lasting, positive impact—not just on the footwear industry, but on the world.