(Junior) Frontend Software Engineer (f/m/d) in Copenhagen

We are seeking a skilled (Junior) Frontend Software Engineer to build and optimize the user interface of custom web applications for enterprise IT solutions. You will collaborate with UX/UI designers, product managers, and backend engineers to create responsive,

user-friendly applications that deliver a seamless user experience across various platforms. The ideal candidate is passionate about modern web technologies, design, and building interfaces that are both functional and visually appealing.

Key Responsibilities

User Interface Development

  • design and develop responsive UIs with JavaScript frameworks (React, Angular, Vue.js)
  • collaborate with UX/UI designers for usability-focused implementations
  • optimize web apps for speed and scalability

Component Reusability & Maintainability

  • build reusable components and frontend libraries
  • ensure modular, scalable, and well-documented code
  • implement frontend architecture that enhances productivity

Integration with Backend Systems

  • integrate APIs and web services (REST, GraphQL) with backend teams
  • ensure smooth frontend and backend communication
  • handle state management with Redux, Vuex, or context-based libraries

Cross-Browser Compatibility & Testing

  • ensure cross-browser compatibility and responsiveness
  • conduct tests using Jest, Mocha, Cypress for reliable code
  • implement automated testing and continuous integration

UI/UX Best Practices

  • stay updated on frontend technologies and UI/UX trends
  • advocate for user-centric design and high usability
  • collaborate with stakeholders for feedback and improvements

What you bring
to the table

Required Skills and Experience

  • Bachelor’s degree in Computer Science, Web Development, or a related field – equivalent experience is also considered
  • expertise in JavaScript, HTML5, CSS3, and frontend frameworks (React, Angular, Vue.js)
  • strong knowledge of web performance optimization techniques
  • experience with state management libraries (Redux, Vuex) and responsive design frameworks (Bootstrap, Tailwind CSS)
  • familiarity with version control (Git) and collaboration tools (Jira, Confluence)
  • proficiency in integrating APIs and working with RESTful services
  • excellent understanding of frontend build tools (Webpack, Babel, npm) and task runners (Gulp, Grunt)
  • strong attention to detail with a focus on performance, scalability, and user experience

Preferred Qualifications

  • familiarity with TypeScript and modern JavaScript ES6+ features
  • a plus: Knowledge of progressive web apps (PWA) and frontend security best practices

Your work environment at SprintEins

  • Teamwork

    As an agile team of up to eight experts you are jointly responsible for the software. You deploy ready-made components in the cloud and communicate directly with users from a wide range of industries.

  • Methodology & Technology

    Collectively you have skills in the areas of Agile, UX, Development, Release Engineering, Architecture, and AI.

  • People Success Lead

    You choose your own supervisor. Together, you shape your development and further training.

  • Continuous education

    At SprintEins aka, you learn hard and soft skills from all areas of expertise – taught by experienced leads and colleagues.

  • Work & Life

    We provide an environment where you can maintain a healthy balance between your personal and professional life.

  • Working flexibly

    You coordinate where, when and how you work with your team.

  • Culture

    Our events are cozy evenings with good food and cold drinks, spent among great people.

We leave the look to your imagination. It's the content that counts.

The application process is coordinated by Karin, Sabine & Jenny. Your contact person Karin Bilsing is looking forward to hearing from you.

Apply easily using the form on the right, or at personal@sprinteins.com.

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