.RELEX Solutions create cutting-edge optimization software to help retailers and consumer brands drive profitable growth. With growth comes opportunities, and we embrace both. Within our platforms, our teams are driving change, working with international colleagues and the latest tech stack to develop solutions that transform into a pioneering end product; it's tangible, impactful and sustainable – for our customers and the world. Our Technology team enjoy a challenge. They're eager to learn, and don't hesitate to ask what, why, and how. They create high-quality scalable code (just imagine, thousands of stores, millions of products, and billions of rows of raw data!) Their expertise positively impacts the environment and business processes around the world; alongside internationalcolleagues, they drive change and develop solutions that become our pioneering end product. From functional programming, machine learning and interesting algorithms, to building big data pipelines, they're behind it all. They can work in a flexible way, remote or in-office – after all, they contribute to all our achievements, so in return, we provide a genuine work-life balance and access to every opportunity. We are now looking for a full-time Senior Fullstack Developer to join our RELEX family in Helsinki. You'll join the On-The-Go team of 5 people developing our Space and assortment solution, who will help you succeed in your new role. Together the team develops and maintains tools to help retail workers in keeping the shelves full (but not too full). You will help the team achieve this goal by writing clear and robust code (frontend and backend) and by helping your fellow team members to do so too. Join us as a (Senior) Full-stack Developer, and this is some of what you'll be doing : Develop and maintain a microservice architecture using C# and .NET Core for the backend, and Angular for the frontend Collaborate with the scrum team to work on our Space and Assortment solution Manage messaging between various microservices and handle integrations with external systems Contribute to making our services cloud-agnostic in preparation for migrating from AWS to Azure Participate in code reviews to ensure high-quality code standards Solid skills in writing clean, efficient and maintainable code Experience with cloud computing platforms (AWS, Azure) Experience with C#, .NET Core Experience with modern frontend development (Angular, React) Interest in learning new things Problem-solving mindset Good communication skills in English (both written and spoken) You don't have to know everything, but you should have solid experience and skills in one of the fields, either backend or frontend. We are all somehow specialized, but what we are looking for is the willingness to develop a real product and learn new skills – not just produce code