Full Stack Developer - Typescript

About The Company Tenhil GmbH & Co. KG is a dynamic and innovative company specializing in online recruiting solutions. As part of the esteemed TENHIL Group, we offer award-winning platforms including high-reach job boards in Germany and Austria such as stellenanzeigen.de, Yourfirm.de, and Regio-Jobanzeiger.de.

Our portfolio also encompasses SaaS portal solutions designed for partner websites and the operation of one of Germany's leading career fair platforms, Karrieretag. We are committed to fostering a collaborative environment that values modern tooling, continuous improvement, and delivering exceptional products. Our team is growing rapidly, driven by a shared passion for connecting people with meaningful employment opportunities and making a tangible impact in the recruitment industry.

About The Role We are seeking a talented Full-Stack TypeScript Developer to join our dedicated team. In this role, you will be instrumental in maintaining and enhancing two large React applications built with Next.js and Vite, along with supporting backend services.

Your contributions will directly influence the quality and functionality of our core products, ensuring they meet the highest standards of performance, usability, and reliability. You will collaborate closely with cross-functional teams, including designers, backend developers, and product managers, to deliver innovative solutions that improve the user experience and operational efficiency. Embracing AI-assisted development tools such as Claude, GitHub Copilot, and Codex, you will leverage cutting-edge technology to write better code faster and optimize our development workflow.

This role offers a unique opportunity to work on impactful projects within a forward-thinking organization that values professional growth and technical excellence.

Qualifications Ideal candidates will possess strong hands-on experience with React, TypeScript, and modern frontend frameworks such as Next.js App Router and Vite. A solid understanding of backend development with Node.js and the ability to work seamlessly across the full stack are essential.

Familiarity with testing frameworks like Vitest, Jest, and React Testing Library is required to ensure code quality and maintainability. Candidates should actively utilize AI coding tools such as Claude, GitHub Copilot, or OpenAI Codex, and understand how to maximize their benefits in daily development tasks. We value individuals who are open to feedback, eager to learn, and committed to continuous improvement.

Strong communication skills, a team-oriented mindset, and a sense of ownership over assigned tasks are crucial for success in this role. Additionally, maintaining clean, scalable, and maintainable code is a core expectation.

Responsibilities

• Maintain and further develop two large React applications (Next.js & Vite) along with backend services to ensure high performance and scalability.
• Build new features across the full stack with clean, readable, and maintainable TypeScript code, adhering to best practices and coding standards.
• Write and maintain comprehensive unit and integration tests using frameworks such as Vitest, Jest, and React Testing Library to guarantee the robustness of the applications.
• Collaborate closely with designers, backend developers, and product managers to deliver high-quality, user-centric solutions that meet business requirements.
• Actively incorporate AI-assisted development tools like Claude, GitHub Copilot, and Codex into your workflow to enhance productivity and code quality.
• Optimize frontend performance by refining user interfaces and ensuring responsiveness, while contributing to backend reliability and efficient API design.
• Participate in code reviews, team discussions, and planning sessions to foster a culture of continuous improvement and innovation.

Benefits

• Stability: Enjoy a permanent contract following a successful 6-month probationary period.
• Flexibility: Benefit from a hybrid work model allowing you to work from home 2-3 days per week, with trust in your ability to manage your tasks effectively.
• Office Perks: Access to complimentary coffee, fresh fruit, snacks, and a rotating selection of free breakfast or lunch options, along with free parking facilities.
• Wellpass Membership: Gain access to gyms, yoga studios, pools, saunas, and wellness centers, empowering you to prioritize your health and well-being.
• Monthly Employee Benefits: Select from five personalized benefits each month tailored to your individual needs and preferences.
• Corporate Discounts: Receive discounts of up to 20% at over 600 brands through our extensive partner network.
• Work Abroad Opportunities: Experience up to four weeks per year working from abroad, subject to approval, to support your personal and professional growth.
• Time Off & Extras: Benefit from 30 days of vacation annually, a volunteer day, a company pension plan, and a dedicated professional development budget to enhance your skills.

Equal Opportunity Tenhil GmbH & Co. KG is committed to creating an inclusive and diverse workplace. We welcome applications from individuals of all backgrounds, regardless of race, gender, age, religion, or orientation. We believe that a diverse team fosters innovation and drives success, and we strive to provide equal opportunities for all employees. Our hiring process is fair, transparent, and designed to select the best candidates based on merit and potential.