Web Frontend Engineer (React / Next.js)

Mid • On-site

Copenhagen, Denmark

Do you want to help shape modern, scalable web applications used by thousands of businesses worldwide?

Our client is looking for a skilled frontend developer with a strong focus on web technologies — especially React and Next.js — to help drive the development of high-quality, user-centric solutions.

About the Role

In this role, you will play a key part in building and evolving our clients web-based user interfaces. You’ll work closely with product managers, UX designers, and backend engineers to deliver performant, scalable, and intuitive solutions that create real value for customers.

We are looking for developers across different seniority levels — both experienced profiles and developers with 5–10 years of experience who are eager to grow and take ownership.

Key Responsibilities

Develop and maintain modern web applications using React, Next.js, and TypeScript
Build reusable components and scalable frontend architecture
Collaborate closely with product and design teams to translate requirements into high-quality user experiences
Ensure performance, accessibility, and responsiveness across applications
Contribute to and evolve shared component libraries and design systems
Participate in code reviews and contribute to improving development practices
Work with CI/CD pipelines and modern development workflows
Stay updated on frontend trends, tools, and best practices

Key Requirements

Solid experience with React and TypeScript in a web context
Experience with Next.js or similar frameworks is highly preferred
5+ years of experience in frontend/web development (we are open to mid-level and senior profiles)
Strong understanding of modern web development principles (performance, scalability, component architecture)
Experience working with APIs and integrating backend services
Familiarity with version control (Git) and CI/CD pipelines
A collaborative mindset and strong communication skills
Motivation to learn, improve, and contribute to a strong engineering culture

Nice to Have

Experience with design systems and component libraries
Knowledge of testing frameworks (e.g., Jest, Playwright, Cypress)
Experience with performance optimization and monitoring
Exposure to cloud environments and modern deployment setups

emagine Polska

emagine Polska is a company operating in the telecommunications industry, based in Warsaw, Poland. The company is involved in innovative projects, focusing on the development and maintenance of portals using modern technologies. Emagine Polska values creativity, motivation, and independence in its team members, emphasizing a collaborative work environment. The company is structured to support agile methodologies, particularly SCRUM, and is integrated with DevOps practices, highlighting its commitment to efficient and effective project management. Emagine Polska is distinguished by its focus on leveraging cutting-edge technologies like React.js and TypeScript, and its dedication to fostering a culture of continuous improvement and innovation.

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