Frontend Developer (Senior) - Madrid

As a Frontend Developer at Mjølner Informatics in Madrid, you will typically work on a variety of projects for Danish and international clients. You will collaborate closely with cross-functional teams including frontend and backend developers, UX consultants, designers, and project managers across Spain and Denmark.

The projects vary in scope, duration, industries, and technologies. You will be involved throughout the lifecycle of the solution, from early idea and design to implementation and delivery.

Freedom with responsibility is key to our culture. You are trusted to plan your own day-to-day work while respecting both project goals and your personal time.

You will also become part of our professional guilds (e.g. Frontend, Backend & Architecture, IT Security), where you can deepen your expertise, share knowledge, and help shape best practices across the company., To succeed in the role, you will have the opportunity to visit Mjølner in Denmark, both initially and on an ongoing basis, to meet your Danish colleagues and experience our culture firsthand. Occasional onsite customer meetings may also take place.

The rest of the time, you will work from our centrally located Madrid office in the Golden Mile area, with flexibility for remote work.

Do you have experience in UX?, * 6+ years of experience as a Frontend Developer

• Extensive experience with React, and a strong understanding of TypeScript, JavaScript, and SPA architectures
• Deep technical insight and a passion for building robust and scalable solutions
• Experience working with agile methods such as SCRUM
• An interest in working closely with clients

And that you are:

• Technologically curious and eager to share your knowledge with others
• Responsible and ready to take ownership of projects, both internally and in collaboration with clients
• Social, helpful, and motivated to contribute to our culture, for example by mentoring less experienced colleagues

As you will work closely with teams and stakeholders in Denmark, a very high level of English is required, both spoken and written.

• Competitive base salary based on your experience and skills
• Strong professional support from experienced frontend and cross-disciplinary teams
• Hybrid work setup: 2-3 days per week in the office (Goya 8, Madrid)
• 30 business vacation days
• Private medical insurance and yearly bonus
• Flexible benefits from gross salary (gym membership, food and transportation tickets)
• True work-life balance. No overtime culture - and we mean it
• A people-first culture where you grow professionally and make a real impact

Mjølner Informatics opened its first international office in Madrid almost three years ago, and we are continuing our growth journey. We are now expanding the team with a highly motivated Senior Frontend Developer, whose assignments will primarily be project-based, working closely with Danish and Spanish colleagues on end-to-end digital solutions. Regardless of the project, one thing is certain: you will be an essential part of building solutions that make a real difference for both our clients and their end users., We develop your business through IT, together Mjølner is an IT House specializing in software, digitalization, and end-to-end solutions. Although we love technology, we always put business first. Across our offices in Denmark and Spain, we are a collective of more than 400 specialists. When the challenge is complex and the solution is not obvious, we are a good choice. This has been the case since nine computer scientists from Aarhus University founded Mjølner in 1988. Since then, we have turned our customers' most complex challenges into concrete, high-quality IT solutions. Like the famous hammer whose name we bear, we hit the mark and come back stronger. We offer more than just a workplace; we offer a work home. An environment built on trust, strong professional dialogue, and a genuine sense of community. We enjoy going to work, but we also value our leisure time and understand the importance of balance. We are deeply rooted in Scandinavian values of low hierarchy, high trust, clear communication, and true work-life balance.