Senior Frontend Developer

Merixstudio is a full-stack, agile software team of creative technologists from Poznań. With our primary services being web&mobile app development, product design, and software development consulting, our focus is on helping our clients turn ideas into a business. And as Top Software Design & Development Company on Clutch, we have plenty of great reviews to prove that’s were good at it! Fueled by a passion for people and the newest technologies, we work in a culture based on values, cooperation, and team spirit. Put simply, we are nice people to work with - check out our profile and #MeetMerix! What you'll do: You'll work on modern Javascript Single Page Applications using mostly React while following high standards of quality. Our stack is based on the newest ECMAScript edition and encourages you to use proper design patterns.In your daily work you will take care of: implementing new features and automated tests (50%), system configuration and maintenance (35%), bug-fixing (10%), solution design (5%). While you work on User Interface, you will also help implement business logic and design API communication in close cooperation with Backend Developers and our clients. Together with your team, you will follow the latest additions to the JavaScript and TypeScript ecosystem. Who you are (requirements): • you have at least 4 years of experience in Web Development with JavaScript • you have very good knowledge of JavaScript • you have practical experience and you feel confident using TypeScript • you have expert knowledge of React • you have a perfect command of HTML5 APIs and CSS3 • you are up-to-date with the latest ECMAScript functionalities • you have knowledge of commonly used design patterns and programming principles • you have excellent English skills both spoken and written • you know security issues and know how to ensure application security (OWASP, SAST, Semgrep) • you know how to work in Scrum methodology • you are open to actively work with English speaking clients • 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 are open to help teammates to overcome obstacles • you can detect application's bottlenecks and you proactively work to eliminate them • you are able to write unit and integration tests (Jest, Enzyme, React Testing Library, TypeScript) • you are familiar with frontend AI tools and you're willing to work with them • you are experienced working with legacy systems What we'd like to see: • eagerness to take the role of the lead project developer • you know the test levels and different test strategies