Overview
Senior Software Engineer (Typescript/Next.js) at LeasingMarkt.de. Join our high-performance team in Düsseldorf to design and develop robust, scalable web applications powering one of the largest automotive leasing marketplaces in Europe.
As a Senior Software Engineer, you will collaborate with a cross-functional team to build solutions that are effective, architecturally sound, and maintainable, elevating software quality, stability, and long-term value.
What You’ll Do
* Improve and extend our existing codebase while maintaining a high standard of code quality and test coverage.
* Design and implement scalable, maintainable, and well-structured solutions based on modern architecture principles.
* Drive architectural decisions with a focus on modularity, clean code, and long-term maintainability.
* Work in an agile, cross-functional team, contributing ideas and pushing for continuous improvement.
* Set high quality gates for new modules, emphasizing testability and performance.
* Support and mentor other team members.
What You Bring
* Strong experience with TypeScript and modern React / Next.js
* Experience with server-side rendering (SSR), static site generation (SSG), and API routes in Next.js
* Solid understanding of performance optimization, caching, and CDN strategies
* Solid understanding of component-based architecture, state management, and modern web APIs
* Deep knowledge of software design principles (e.g., SOLID, DRY, KISS)
* Passion for clean, testable, and maintainable code
* Familiarity with CI/CD pipelines, Git, and agile development practices
* A collaborative mindset and willingness to share knowledge and best practices
* Experience with or openness to PHP (Laravel) is a big plus
* Experience with cloud platforms (especially AWS) and containerization (Docker/Kubernetes) is a plus
* Experience with Tailwind CSS is a plus
What We Offer
* An experienced, friendly team with flat hierarchies and open communication
* Two days of remote work per week and flexible working hours
* 30 days of vacation + Christmas and New Year’s Eve off
* Option for “workation”
* Modern office in the heart of Düsseldorf
* Muesli, fruit, and drinks included, including a portafilter machine
* Games corner (PlayStation, Switch, table tennis...)
* Company pension plan, job bike, corporate benefits, and more
If you are interested in building your career at LeasingMarkt.de, we’d love to hear from you.
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