WHAT WE ROCK AT! As a consultancy and creation company, we act at eye level with our clients - and with each other, too. At nexum, you'll find short decision-making processes, flexible scope for action, and plenty of room for your ideas and further development. Whether you're a newcomer or a seasoned pro, your colleagues are real personalities who learn something new every day through open exchange on challenging topics and grow together: They are parents, globetrotters, musicians, headbangers, nerds What unites us? We are people with team spirit, high self-motivation, and enthusiasm for digital topics. Curious? Then take a look and get to know your colleagues: https://www.nexum.com/ueber-die-nexum WHAT WE OFFER Technical Growth & Leadership Advance your PHP and HubSpot expertise through nexum Academy, workshops, conferences, and certifications. Lead technical standards, mentor junior developers, and shape development practices across projects. Flexible Work Environment Remote options, flexible hours, and your choice of Mac or Windows setup configured for optimal productivity. Team & Culture Connect with fellow developers through team activities, tech meetups, and our annual summer party across Hamburg, Cologne, Nuremberg, and Valencia. WHAT YOU WILL DO WITH US Lead PHP Development Own the complete development lifecycle from requirements to deployment, architecting scalable solutions using modern frameworks with focus on performance and maintainability. Mentor & Collaborate Guide junior developers, establish coding standards, and work with stakeholders to translate business needs into technical solutions with accurate project estimations. Expand into HubSpot CMS Learn HubSpot CMS development including HubL templating and platform-specific patterns—we'll provide training and support as projects require. YOU ARE Technical Excellence Advocate Passionate about clean, maintainable code and development best practices across PHP and CMS projects. Full-Stack Problem Solver Think holistically about solutions, understanding both backend architecture and frontend user experience. Mentorship-Minded & Quality-Driven Enjoy guiding junior developers while balancing agile practices with high code quality standards to meet project deadlines. Continuous Learner Stay current with PHP ecosystem, HubSpot platform updates, and emerging web development technologies. YOU HAVE Communication Skills Fluent English proficiency (B2-C1) for international collaboration and technical documentation. PHP Ecosystem Mastery 5 years of deep PHP development experience with modern PHP versions (7.4), Composer ecosystem, PSR standards, and advanced concepts like namespaces, traits, and reflection. Framework Expertise 3 years with PHP frameworks, particularly Symfony and Yii 2, including MVC patterns, dependency injection, service containers, and framework-specific best practices. Database Proficiency Strong experience with MySQL and PostgreSQL, including ORM/ODM tools (Doctrine, Eloquent), query optimization, and database design principles. Platform Development Experience Hands-on experience with enterprise PHP platforms like Drupal, Shopware, or similar, including custom module/plugin development. Modern Development Practices Working knowledge of Docker, CI/CD pipelines, automated testing frameworks, and version control systems. YOU ARE WELL VERSED Frontend Integration HTML5, CSS3/SCSS, JavaScript (ES6), and experience with frontend frameworks (React, Vue) for seamless full-stack development. API Development & Integration RESTful API design, GraphQL implementation, third-party service integration, and microservices architecture patterns. E-commerce & CMS Architecture Headless commerce implementations, CMS integrations, payment gateway integration, and performance optimization strategies. HubSpot CMS Experience Prior HubSpot development experience with HubL templating and platform-specific patterns—if not, we'll support your learning. INTERESTED? CONTACT ME: For us, communication at eye level means that you can address us as we address you. Since we are on a first-name basis here at nexum and you may soon be one of us, why not start with that in your application? At the same time, we want to make it as easy as possible for you, so a cover letter is not mandatory for us. Just send us your CV in two minutes. That's it. About us nexum is the consultancy and agency for communication, interaction and transactions in the digital age. The company helps its clients to master the challenges of digital transformation and offers them the full range of digital services: Strategy & Innovation, Websites & Experience Platforms, Commerce Solutions, Digital Communication & Media, Data Intelligence & CRM, Software Architecture & Operation as well as Digital Business & Company Building. nexum is one of the top 5 largest owner-managed digital full-service providers in the German-speaking world and employs over 180 people at its locations in Cologne (headquarters), Berlin, Hamburg, Nuremberg and Paderborn as well as in Biel/Bienne and Valencia. Its clients include Adecco, apoBank, Braun, Claas, Coop Switzerland, Fresenius, Melitta and Swiss Post.