Frontend Engineer (d/f/m)

Kleinanzeigen is the leading online classifieds market in Germany. An average of more than 50 million ads are available in numerous categories - from children's supplies to electronics to real estate. With more than 36 million users per month, Kleinanzeigen has the widest reach of all online selling platforms in the country. Most of the items traded on Kleinanzeigen are second-hand. In this way, users make an active contribution to sustainability. The Kleinanzeigen market allows companies the opportunity to easily offer their services online. Kleinanzeigen was launched in September 2009 as eBay Kleinanzeigen. Since June 2021, the company has been part of Adevinta, a leading global provider of online classified ads. In May 2023, the name was changed to Kleinanzeigen.

Kleinanzeigen is part of Adevinta: a global online classifieds specialist and sustainability leader with 25+ products in 10 countries.

What you’ll do ​& Who you are

You will join the Smart Advertising team, a cross-functional team based in our lovely new Berlin office, developing exciting products to make advertising smarter on Kleinanzeigen and improve the experience for the end user.

What You’ll Do

• Be part of a friendly, multicultural team, working in an Agile environment

• Write clean, efficient, and reusable code following best practices and coding standards

• Work with the team to constantly evolve our ways of working

• Be an active part of our Engineering community to ensure continuous improvement across the company

• Build TypeScript/JavaScript-based technology for online classifieds in a clean, scalable way

• Optimize application performance and scalability through efficient code and architecture design

• Write concise technical documentation for code, APIs, and system architecture

• Ensure code quality and maintainability using software engineering best practices

• Take ownership of the full development lifecycle, from architecture to QA and deployment

• Collaborate closely with UX Designers using tools like Figma to ensure a seamless and intuitive user experience
   

Who You Are

• You are a strong believer in teamwork and collaboration

• Proficient in modern frontend technologies including HTML5, CSS3, JSX, and TypeScript/JavaScript (ECMAScript)

• You have experience working with React or Next.js – and ideally also some familiarity with Astro

• You have experience with modern testing frameworks like Jest, Vitest, and Playwright

• Experience with responsive design and cross-browser compatibility

• Strong focus on delivering top-notch user experience

• Comfortable working in Agile environments

• Bachelor’s degree in Computer Science, Engineering, or a related field — or equivalent experience

• Familiarity with the Node.js ecosystem and API integration (REST/GraphQL)

• Experience building RESTful APIs (e.g., NodeJS, Express, Fastify, NextJS)

• Experience deploying code in cloud environments such as AWS, Azure, or GCP

• Experience with CI/CD tools, Git, npm, and GitHub Actions

• (Optional) Exposure to relational databases such as MySQL, PostgreSQL, or Oracle
   

Benefits

Life at Adevinta comes with its perks! Our Adevintans enjoy the following benefits:

• An attractive Base Salary 💸

• Participation in our Short Term Incentive plan (annual bonus) 🏆

• Work From Anywhere: Enjoy up to 20 days a year of working from anywhere! Maybe not from the moon🌛well why not! just make sure you have internet connection! 🌍

• A 24/7 Employee Assistance Program for you and your family, because we care ❤️

• Win together, lose together is one of our key behaviours. At Adevinta you will find a collaborative environment with an opportunity to explore your potential and grow 🌱

On top of these, we also provide a range of locally relevant benefits. Wanna know more? Apply and ask our recruiters! ✨

Adevinta 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. Research suggests that women and individuals from underrepresented groups may self-select out of opportunities if they don’t meet 100% of the job requirements. We strongly encourage people from historically excluded groups to apply and look forward to speaking with you.