Stellenbeschreibung:

Founded in 1996, mobile.de disrupted the status quo of buying and selling cars as the first online vehicle marketplace.
Today, we are Germany's largest vehicle marketplace with around 1.4 million listed cars, commercial vehicles, motorcycles and e-bikes. Both private customers and more than 40,000 registered vehicle dealers use the platform and benefit from 108 million customer visits per month. As a “one-stop shop”, mobile.de's offering includes financing and leasing solutions in addition to buying and selling - and we will not stop innovating. If you are driven by an eagerness to learn and a passion for collaboration then we should get to know each other.
mobile.de is an equal opportunity employer and we value diversity. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status or disability status.
If you feel like you don’t meet all of the requirements for this role but are interested, please consider applying anyway. We strongly encourage people from historically excluded groups to apply.
What we offer
Meaningful Work: We are a diverse, international, highly skilled and passionate team committed to a world where people share more and waste less. Every day you will have the opportunity to make a huge difference for our users, customers as well as shape the future.
Embracing AI: We're at the forefront of integrating cutting-edge AI technologies into our operations. Being part of mobile.de you will work with and learn about AI tools, contributing to projects that leverage AI to enhance efficiency, improve customer experiences, and drive our mission forward. With an AI-first mindset, we foster a culture of continuous learning and experimentation, empowering our team to explore and apply AI in meaningful ways for the company and themselves.
Growth and Development: We are a global organisation who truly believes in growing our people. To support this we offer lots of development and training opportunities and provide a budget for our team members.
Connection and Inclusion: Our culture is the glue that holds us together. We believe in making meaningful connections and creating an inclusive atmosphere with lots of opportunities to connect both in your day to day work and through social team activities (online and offline).
What you’ll do & Who you are
About the team
This is an excellent opportunity to join one of our Consumer Teams at mobile.de, where we’re on a mission to guide every user to the mobility solution that fits their needs and lifestyle. We’re seeking a skilled Fullstack Developer to join us as a problem solver and collaborator, working alongside a diverse team of engineers, designers, analysts, and marketing experts including SEO specialists to craft user experiences that truly resonate.
If you’re passionate about building user-first solutions, we'd be happy to hear from you.
What you’ll do:
• Be an active and engaged partner alongside product, UX, business teams, and your engineering peers
• Be part of shaping our product from initial planning all the way through to launch
• Write clean, maintainable code with strong test coverage (unit, snapshot, and integration tests), using TDD when possible
• Ensure the quality of your product because you understand that quality is the responsibility of the entire team
• Dedicate up to 30% of working time to maintain the code quality and contribute to initiatives related to platform improvements and best practices
• Stay up-to-date with industry trends. Learn new tech and non-tech related skills to grow yourself and your team
• Participate in design decisions, QA and code reviews
• Be a mentor for other team members and help to grow a highly skilled and engaged team
Your profile:
• Several years (3+) of professional experience as a Fullstack developer (React, Typescript, Java 21 with Spring Boot)
• You worked in multi-disciplined agile teams and know that responsibility does not end with deployment.
• Real passion to write clean and beautiful code, with an eye for simplicity and pragmatism.
• An ambition to follow the technology trends and apply new technologies to our technical stack.
• Strong communication skills and proficiency in English
Frontend Expertise
• Solid hands-on experience with React.js, Next.js (SSR, SSG, API routes), core concepts like hooks, context API, component lifecycles, and other modern frontend architectures
• Firm grasp in JavaScript and TypeScript, with strong command of modern frontend development practices
• Skilled in translating UI/UX designs from tools like Figma into responsive, pixel-perfect interfaces
• Understanding of frontend performance optimization, SEO best practices, and cross-browser compatibility
• Exposure to frontend testing tools like Jest, or React Testing Library is a plus

Backend Knowledge
• Proficient in backend development using Java 21, with hands-on experience in Spring Boot and Maven
• Strong experience designing and building applications using microservices architecture for scalability and maintainability
• Expertise in developing and integrating RESTful APIs
• Solid understanding of NoSQL databases, particularly MongoDB, and search technologies like Elasticsearch
• Experience working with CI/CD pipelines using tools such as Jenkins and GitHub Actions
• Knowledgeable in containerization technologies like Kubernetes and cloud-native deployments, leveraging tools such as Kafka for event-driven systems.

Benefits
Working at mobile.de comes with its perks! Enjoy the following benefits:
• Recharge with 28 days of paid time off.
• Stay mobile with a €50 monthly transportation/mobility allowance.
• Keep growing with a development budget and access to coaching.
• Family first - enjoy up to 12 (non-birth parent) or 20 (birth parent) weeks of fully paid parental leave.
• Learn anytime, anywhere with our online and offline library.
• Get rewarded with an attractive base salary and participation in our annual incentive plans.
• Work from anywhere - up to 20 days per year from wherever you feel most productive.
• Prioritize your well-being with a 24/7 Employee Assistance Programme for you and your immediate family.