(Junior) Fullstack Developer (m/f/d) environmental bonus

What you would do

• Work as a full-stack developer in a very small, agile team with high responsibility, from coding to deploying and operating on AWS
• Independently develop brand-new features and responsive UIs for desktop, tablet, and mobile across our apps using React and Next.js
• Build backend services and REST APIs with Node.js and NestJS, as well as background jobs and data migrations using BullMQ, Redis, TypeORM, and MySQL
• Maintain and evolve our modern tech stack (including Turborepo and Vite) and deployment pipelines to keep our systems stable, scalable, and maintainable
• Contribute your own ideas in close collaboration with product and IT teams, with benefiting from short decision-making processes and fast release cycles
• Work with the latest AI tools daily to move fast, automate routine tasks, and focus on solving real engineering problems
• Fast career progression: Advance quickly in an environment that supports your talent and rewards your commitment
• Real ownership: Bring your own ideas to the table, try out new approaches, and take responsibility for making a direct impact
• Continuous learning: Join internal training sessions with specialized coaches and use your annual budget for external professional development
• Team Spirit and Modern Workspace
• Strong team spirit: Work in a collaborative atmosphere with shared lunches, foosball, after-work drinks, and regular company and team events
• Modern workspace: Get set up in a well-equipped office with high-quality hardware, including a MacBook and a height-adjustable desk
• Flexibility and Work-Life Balance
• Flexible working arrangements: Adapt your working model to fit your personal needs and lifestyle
• Easy commuting: Get a free Deutschlandticket for public transit or a subsidized company bike
• Free lunch: Share freshly prepared meals with your colleagues twice a week
• Health and fitness: Stay active with in-house sports classes or subsidized external fitness programs, including EGYM Wellpass

What they are asking for

• Several years of professional software development experience
• Hands-on experience building software independently with Node.js, React, and TypeScript
• Proficiency in modern frontend technologies and practices for responsive web development
• Practical experience working with relational databases
• A strong sense of ownership and a passion for excellence
• Effective organizational and time-management skills
• Fluency in written and spoken English (German is a plus)

About the employer

Über diesen Job: At CHECK24, we combine cutting-edge technology with innovative digital solutions to make our customers' lives easier. With our THG Bonus (Umweltbonus), we help electric vehicle owners turn their CO₂ savings into real financial rewards through a simple, fully digital process.

To take our platform to the next level, we are looking for a passionate (Junior) Full Stack Developer (m/f/d) at CHECK24 Vergleichsportal Umweltbonus GmbH to join our small, agile team. You’ll take ownership of exciting projects from concept to production, work with a modern tech stack including React, Next.js, Node.js, and TypeScript, and have the freedom to bring your own ideas to life.

With short decision paths, fast releases, and the latest AI tools, you'll make a real impact from day one. If you want real responsibility, a direct impact on our products, and a team that moves fast, we’d love to meet you!