Fullstack Developer (f/m/d). IN Cologne, Munich. Inverto is one of the leading procurement and supply chain management consultancies in the world. Backed by the power of BCG, we’ve grown from a successful European consultancy into a global company with a distinct offering. Our Business Services Teams play a critical role in enabling our business, driving continuous improvement, and shaping how we scale. Here, you can use your expertise to make a meaningful impact from within, taking on responsibility from day one and seeing the difference your work makes. As we continue to grow, so will your opportunities, in an environment that supports your development and empowers you to grow as we grow. There’s never been a better time to join Inverto and be part of what comes next. Are you in? HOW YOU'LL IMPACT. UI development. Working closely with Product Owners, you will develop modern user interfaces in Blazor Server. You will build reusable components and ensure consistent design patterns across our applications. Business logic & security. You will implement and maintain business logic and security concepts in C#/.NET and ensure our applications remain robust, secure, and high-performing. Integrations. You will integrate databases and external services such as SQL Server and REST APIs and implement AI integrations for our internal customers. Quality & performance. You will conduct code reviews, write unit and integration tests, manage error handling and logging, and continuously optimize the performance of our solutions. Dynamic work environment & impact. Joining a motivated IT team that offers a professional environment with individual development opportunities. From day one, you will take on responsibility and contribute directly to real products and practical solutions. WHAT YOU'LL BRING. You have a university degree in Computer Science, Software Engineering, or a related field, combined with at least 5 years of professional experience in full stack development with C#, ideally including hands-on experience with Blazor. You have strong practical expertise in C#/.NET, Blazor, Entity Framework, T-SQL, and REST APIs. You are experienced in component-based UI architecture, responsive design, and creating intuitive user workflows. You bring an intermediate level o f AI affinity, including experience with AI integrations in applications or a strong willingness to grow into this field. You combine conceptual thinking with flexibility, enthusiasm for new challenges, and a strong team-oriented mindset. You thrive in a team environment, communicate confidently in an international setting, and are business fluent in English and German language skills are a plus. WHAT WE'LL OFFER. From day one, we invest in your grwoth and well-being - because your success fuels ours. Tailored training programs and personalized coaching to help you develop your strengths, deepen your expertise, and grow with confidence. Flexible working models that support your personal needs, including family, life stages, and mobility preferences. Access to mental coaching and well-being resources that build resilience and support you to thrive - professionally and personally. A rewarding Employee Referral Program - because the best teams grow through trusted connections. Comprehensive insurance coverage for security and peace of mind. Individual mobility packages that support flexibility and convenience. Seasonal and team events to foster collaboration and celebrate success – together.