(Senior) Software Engineer

Köln ab sofort / asap Deine Aufgaben Trusted Shops develops SaaS solutions for over 40 million users and 30, businesses across Europe. Our product suite includes products such as the Trustmark, Buyer Protection and the eTrusted experience feedback platform. Our products are part of a 20-year mission to enable trust between people and businesses in the digital age. Home of our Product Development is the Products & Engineering Department, which consists of 15 cross-functional Product Teams across 3 Product Domains (Consumer, Business and Platform), working in an agile environment. We’re looking for a talented and curious (Senior) Software Engineer (f/m/d) Fullstack to join our Platform Domain, someone who thrives in dynamic environments, enjoys solving complex problems through code, and is driven to improve the overall User Experience. In this role, you’ll be part of our Trstd Login Team, where we’re building the next generation of Secure and User-friendly authentication Tools - designed to foster trust between Users and Businesses.Your Key Responsibilities as a (Senior) Software Engineer (f/m/d) Fullstack: Work closely within a cross-functional product team of growth-oriented engineers, product, and delivery experts to build reliable, scalable, and impactful solutions. Build cross-platform Web Components with deep expertise in leading eCommerce systems such as Shopware, PrestaShop, WooCommerce, Magento, and Shopify. Your experience ensures seamless integration and performance across environments. Implement secure System Communication using OAuth2 and OIDC, and approach engineering challenges with a language-agnostic mindset, leveraging stable, proven Technologies in line with the “Choose Boring Technology” philosophy. Own your work end-to-end in a "You build it, you own it" culture — from feature development through to CI/CD Deployment, Monitoring, and Infrastructure Automation using Terraform and Infrastructure as Code (IaC) principles. Why Join Trusted Shops? Personal Development: You’ll receive direct support from your Engineering Manager, ensuring your growth and success Health & Wellbeing: Participate in monthly health activities and earn an extra vacation day for achieving health goals Continuous Learning: Enjoy your “Self Education Day” every last Friday of the month, where you can focus on personal growth, attend internal tech talks, read a book, or work on your goals Inclusive Work Culture: Flexible working options and a focus on work-life balance. No late-night work expected If you want to know more about our organisation, feel free to check out the of our CTO A Typical Day as a (Senior) Software Engineer (f/m/d) Fullstack at Trusted Shops: Start your day by setting up your remote workspace or adjusting your desk at the office Check your personalized task manager to review projects, balancing short-term tasks with progress on larger Epics Join the team standup to sync up on the sprint backlog or Kanban board, setting priorities and collaborating on shared goals Focus on sprint stories, tasks, or bug fixes—working solo or teaming up with pair or mob programming as needed Enjoy a flexible lunch break, whether it’s a home-cooked meal or a casual outing with colleagues at nearby restaurants Spend the afternoon on focused work sessions, tailored to team dynamics and preferences On your Self-Education Day (monthly), focus on personal growth with a self-directed learning agenda and no scheduled Meetings Wrap up the day with Team-building activities such as Waffle Day or enjoy a drink on the Rooftop Terrace Dein Profil Extensive frontend expertise with JavaScript, TypeScript, HTML, and CSS, paired with strong Keycloak knowledge and backend experience in Java and . Proficient in modern React development and pure JavaScript Frontends, including building custom Shop Plugins for platforms like Shopify and WooCommerce Skilled in designing scalable Microservices and secure RESTful APIs, with deep understanding of Web Security standards such as OAuth2 and OIDC Solid hands-on knowledge of the AWS ecosystem, especially Lambda and ECS, with experience deploying cloud-native applications in containerized environments Experience with Terraform and Infrastructure as Code is preferred; if not, conceptual understanding and a willingness to learn are valued, with a focus on automation, performance, and maintainable DevOps practices. Confident working with NoSQL databases like DynamoDB, complemented by practical SQL skills for structured data Thrive in a collaborative environment where a growth mindset, continuous learning, and the motivation to make a meaningful impact with your team are key to success Strong communication skills in English (written and spoken); additional languages are a plus What we offer you: Hybrid work: Combine flexible remote work with team time in the office Workation: Temporarily work from a destination of your choice within the EU, Iceland, Liechtenstein or Norway Permanent contract with Europe's trusted brand One "Self Education Day" per month 27 vacation days + 3.5 additional days off at Christmas, New Year's Eve and Carnival Buddy programme (an experienced trustee is at your side) Individual training opportunities Events (Team Events, Unit Events, etc.) Health Pass (free online and offline sports, fitness and health courses)