or Permanent Senior Full-stack and Mobile Developer - Technical Lead (Freelance

📋 Tasks and responsibilities The IT development team is looking for an experienced full-stack and mobile developer with strong technical expertise and at least 8 years of experience in software development. In this role, you will: Define and maintain the technical architecture of software solutions, with attention to scalability, security, performance and maintainability. Translate business requirements into robust technical designs and select suitable technologies. Contribute directly to software development, especially for complex or critical components. Safeguard code quality and architectural consistency through code reviews, technical standards and established best practices. Provide technical guidance to developers, support knowledge sharing and contribute to continuous improvement. Identify technical risks, dependencies and technical debt, and drive appropriate solutions. Work with the head of service and project managers to support successful project delivery. Participate actively in project teams across software design, development, testing and delivery. Develop and maintain mobile applications. Contribute to the testing, release and deployment of mobile applications on Google Play and the Apple App Store. 📝 Your profile You have experience as an established full-stack developer and can take technical ownership while guiding colleagues. You have at least 8 years of experience in software development and are comfortable working across backend, frontend, mobile development and DevOps. Technical skills Object-oriented programming, design patterns and n-tier architecture. Backend development with C#, .NET Framework 4.0, 4.5 and 4.8, .NET Core, .NET 10, ASP.NET Core, ASP.NET Core Web API, ASP.NET MVC and Entity Framework. Frontend development with HTML, CSS, JavaScript, jQuery, SCSS/SASS, Nuxt.js, Node.js and Vue.js. Databases and query languages, including Microsoft SQL Server and T-SQL. DevOps and containerisation with Microsoft Azure DevOps, Git, Docker and Kubernetes. Mobile development with React Native and Expo, including deployment to Google Play and the Apple App Store. Unit testing with NUnit and xUnit. IdentityServer, OpenID Connect and security for web applications. REST API services. Professional competencies Technical leadership and the ability to guide and advise colleagues. Clear communication and the ability to explain technical concepts and standards. Strong collaboration skills when working with developers, project managers and designers. A proactive and accountable approach to identifying risks and taking responsibility. Willingness to learn new technologies and continuously improve technical skills. Ability to share expertise and contribute to knowledge sharing. Languages French or Dutch, with professional reading, writing and speaking skills. English, with professional reading, writing and speaking skills. 💼 Offer You will be part of a growing Belgian SME where initiative and personal development are encouraged. We will provide you with an enjoyable work environment with fun colleagues. We will work out a career plan with you, with attention and a budget for extra education/certification. You can count on an attractive salary, supplemented with extra-legal benefits, including a company car. (Freelance is also possible) Originally posted on Himalayas