Join to apply for the Senior Software Engineer TYPO3 + GSB11 - Individualentwicklung (all genders) role at adesso SEWe are among the top addresses in the IT world, focusing on optimizing our clients' core business processes. Through smart use of tailored IT solutions, we help our clients maximize their business potential and leverage current technologies. Our success is driven by our people at adesso! You bring ideas, expertise, and technology together. Together, we program (your) future at adesso.DEINE ROLLEArchitecture: You plan and shape the software architecture. Your solutions are scalable, robust, and flexible for future adjustments.TYPO3 Development: You develop customized TYPO3 extensions with Extbase and Fluid, as well as individual adaptations within the CMS.GSB11 Integration: You implement barrier-free web solutions according to GSB11 standards and WCAG guidelines.Backend and API Development: You implement and optimize backend logic and interfaces for integrating external systems, supporting the development and connection of external PHP applications based on frameworks like Symfony and Laravel.Quality Assurance: You monitor and ensure code quality through best practices, DevSecOps, code reviews, and testing. Collaborating with QA teams, you ensure error-free, high-performance, and requirement-oriented applications.Technological Innovation: You stay informed about the latest developments in TYPO3, PHP, and Symfony, bringing innovative ideas to the team. You evaluate new tools, techniques, and frameworks and integrate them into ongoing or future projects.DEIN PROFILCertification: Ideally, you hold a current TCCD certification. If not, obtaining it will be one of your first tasks with us.Professional Experience: You have several years of practical experience with DDD & TDD, Clean Code, and SOLID principles.DevOps: You have knowledge in building pipelines with tools like GitLab CI or GitHub Actions.Code Analysis: You are proficient with tools like phpstan, psalm, or phan for static code analysis.Frontend Skills: You are familiar with HTML5, CSS3, JavaScript, and frameworks like Bootstrap or TailwindCSS.Language Skills: Your excellent German and good English skills enable confident communication.We promise: You will feel comfortable with us! Collegial, family-like, and on equal footing – we value exchange, team spirit, and respectful interaction. Diversity and different perspectives are as important to us as you as a person. This is our special "We-Feeling" — even a word for it: adessi.Our culture and collaboration are characterized by mutual appreciation, recognition, and support. This unites us across hierarchies — even in home office settings. We have repeatedly ranked 1st in the "Germany’s Best Employers in ITK" competition! Our extensive training offerings and transparent career development model ensure your growth does not stand still. Growing together and being enablers of opportunities are embedded in our DNA.Seniority levelMid-Senior levelEmployment typeFull-timeJob functionOtherIndustriesIT Services and IT Consulting #J-18808-Ljbffr