What you will be doing Design and build advanced mobile applications using the Flutter framework, addressing real-world use cases across various industries such as home energy management, B2B commerce, or financial services. Collaborate with product managers, designers, and other developers to define, design, and ship new features. Continuously learn and apply new Flutter techniques and best practices to apply them to the challenges our clients are faced with and enhance app quality and development efficiency. Debug and troubleshoot issues in applications, providing timely solutions and updates. Take ownership of the quality of the code and documentation. Identify and act on opportunities to improve team collaboration, internal tools, and development processes. We need you to have Must-Have’s A strong desire to learn something new every day, to try new things and a genuine interest in the field. Team spirit – you enjoy working in a multi-disciplinary team, having your opinions heard and are excited to share your knowledge with others. Problem solving attitude. 10 years Frontend experience. Proven experience in building and deploying mobile and/or web applications using Flutter / Dart, with a portfolio of successful Flutter works. Knowledge of state management solutions in Flutter ( e.g. Riverpod ). Familiarity with RESTful APIs, backend integration, third-party libraries, and code versioning tools (e.g., Git). Good u nderstanding of authentication systems, common security practices and open standards ( e.g. OIDC). R eal-world experience with at least one JS/TS frontend Framework ( e.g. React, Svelte, Angular, Vue, etc.). Selected Nice-to-Have’s GitHub profile with open source projects Expert experience with any widespread programming language ( e.g. Typescript, Golang, Rust, Python, C#, C/C++, Java), its type system and common tooling (build tools, package management, testing, linters, etc.). Experience building full stack apps with SSR frameworks ( e.g. Next, Nuxt, Sveltekit ). Experience in DevOps – building CI pipelines, IaC ( e.g. Terraform, CDK), Kubernetes ecosystem. Experience with at least one of the big cloud providers (Azure, AWS, GCP). At least a basic hands-on experience with Docker and knowledge about the container ecosystem (Kubernetes, Helm, etc.). Experience with data modeling in relational and NoSQL databases. Degree in computer science. Benefits Office located at BackFabrik. Home Office: We are a team and value the personal face-to-face interaction. Therefore, we expect our team to come into our office around 2-3 days per week. You will have a full-time desk available for you in case you want to come in every day. Occasional Workations are of course fine Wellpass membership partial coverage. Subsidised BVG job ticket. Mental Health counselling system. Company Pension scheme. The usual perks: New MacBook Pro, Double 4k Screen Office Setup. Company Day and Party once a quarter. Coffee/Tea option optimised for quantity and quality. Snacks and fruits. Team lunch once a week. Job Practical Details Location: Berlin Commitment: Full-Time or Freelance Salary: 70-100k€ About us We are Berlin Bytes. We are young and creative, we value diversity and freedom of expression — you’ve probably heard it from every single Berlin based digital agency though. What makes us different is the way we collaborate with each other and our partners. Since we offer full-cycle digital services (from UX/UI Design, Web Development to Marketing and Product Ownership) to our clients, we approach each job as our own in-house project. You can expect to dive deep into a great number of industries — our spectrum of clients ranges from upcoming Berlin Fashion Start-Ups to large Corporate Infrastructure Providers. This allows us to provide you with a great diversity of projects that matches your skills and aspirations. We've got two office spaces at the border of Prenzlauer Berg and Friedrichshain. Berliners know these two neighbourhoods as a young-professionals-turned-parents borough and an alternative-Boxy-Techno-scene place. And we are happy to say we are both. We are where family meets party, where free spirit meets structured approach, where experience meets curiosity. Please note, while we do appreciate the time and effort you have invested into applying for our position, we only provide feedback to shortlisted candidates due to the sheer volume of applications. If you do not hear from us within 21 days, please assume your application has been unsuccessful on this occasion. Thank you for your understanding.