Senior Principal Full Stack Engineer

Are you an experienced engineer passionate about building complex, high-performance systems? We are looking for a Senior/Principal Full Stack Engineer to join an innovative project in the autonomous vehicle domain. This role is fully remote within Europe, giving you the flexibility to work from anywhere while collaborating with a global team. We at Sigma Software partner with leading companies worldwide to deliver cutting-edge solutions. Joining us means working on impactful projects, enjoying professional growth opportunities, and being part of a culture that values innovation, collaboration, and excellence. CUSTOMER Our Customer is a global leader in the automotive sector, specializing in autonomous solutions for moving vehicles. With a valuation of $15 billion and a strong international presence, the company drives innovation in mobility and safety. They are known for deploying advanced AI and sensor technologies to create next-generation transportation systems. PROJECT The project focuses on developing advanced software solutions for autonomous vehicle systems. Engineers will work on both front-end and back-end components, enabling real-time data processing, control interfaces, and integration with complex hardware systems. The team applies modern development practices, cloud-native architectures, and robust testing methodologies to ensure reliability and safety. Key Technologies: ReactJS, TypeScript, Golang, Python, Java, PostgreSQL, Docker Job Description Design and implement large or complex parts of the softwareDevelop unit, integration, and automated end-to-end testsParticipate in requirements clarification sessions and raise questions regarding task inputs and requirementsPeer-review design and code with senior specialists; proactively request reviewsPromote clean code practices and good design principles (modularity, reuse, extensibility) and mentor othersParticipate in project/team meetings and contribute relevant inputJoin conference calls and face-to-face meetings with the CustomerBe available for business trips to the Customer’s office in the EU region Qualifications 6+ years of experience in software developmentStrong hands-on experience with ReactJS and TypeScriptBackend experience with Golang / Python / Java or another server-side languageSolid knowledge of PostgreSQLExperience with Git, DockerUpper-Intermediate English levelWILL BE A PLUS Customer-oriented mindset - previous client-facing experience and comfort with direct communicationPrevious experience in Automotive domain