Senior Frontend Developer

Heads up before you apply!

This is a project-based recruitment, which means that the contract will be tied to the duration of our collaboration with the client. Once the project ends or the cooperation is terminated, your contract with Merixstudio will also end. We anticipate the project to be long-term — while the initial scope is planned for 6–12 months, we estimate the overall collaboration may extend up to 2 years or more.

The recruitment process consists of two stages - a 45 minutes intro call with HR and the technical interview, which takes around 1 hour.

That said – we’re looking for someone who’s totally not just into quick MVPs but rather enjoys taking technical ownership and continuously improving a complex product. You'll join an agile cross-functional team of Product Owner, Backend Dev, QA, DevOps and Product Designer - so we’re looking for someone independent, and confident in working with legacy code.

You'll work on the continued development of a comprehensive software solution designed specifically for youth welfare organizations in Germany. This is not just a typical maintenance gig – although you'll spend time improving and stabilizing the existing codebase, you'll also play a key role in designing and building new features, with a strong focus on cash management and invoicing modules. These are critical for the platform’s growth and commercial success.

Requirements

• you have at least 5 years of experience in Web Development with JavaScript
• you have practical experience and are willing to work with Legacy Code
• you have very good knowledge of JavaScript and you feel confident using TypeScript
• you have expert knowledge of React
• you are able to analyze custom complex solutions in a project
• you have a perfect command of HTML5 APIs and CSS3
• you are up-to-date with the latest ECMAScript functionalities
• you know security issues and know how to ensure application security (OWASP, SAST, Semgrep)
• you know how to work in Scrum methodology
• you have knowledge of working with Server Side Rendering and Next.js
• you know how to manage state of web application and know popular 3rd parties libraries (eg. Redux, Tanstack Query, SWR)
• you can detect application’s bottlenecks and you proactively work to eliminate them
• you have excellent English skills both spoken and written
• you know the test levels and different test strategies
• you have experience using MUI and CSS Modules
• you have experience working with PHP (Symfony)