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Location
In office (Aalborg)
Seniority
Middle · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 23, 2026. First seen by Alion on Oct 23, 2026.

Overview
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Impact
Profile match

XCI

XCI is a Danish software company that develops software helping police authorities and intelligence services prevent and fight crime. It works with C++ and backend technologies and hires senior C++ developers, backend developers, DevOps engineers and student workers. The company is based in Aalborg, Denmark.

Join a rapidly growing technology company with an important purpose of developing the best software products to prevent and fight crime. We make sure that police authorities and intelligence services always have the best technological solutions, giving them the optimal conditions to protect citizens in the city, on the street and in our homes.

If you find motivation in working in a dynamic, innovative environment, and have experience with JavaScript, building UI and data processing, we would love to have you as our next team member.

We are looking for an experienced and driven frontend developer to help build impactful, scalable solutions using React, JavaScript (ES6), TypeScript, and Node.js.

Develop scalable big data software

Your primary role will involve developing scalable and high-quality software systems that support big data flows and analytics used by national security organizations.

As an experienced Frontend Software Developer, you can drive the entire process from conception through implementation to customer feedback. You focus equally on crafting beautiful UI and solid, fully tested functionality making you a key player in your team.

You will join a dedicated and experienced team where professionalism runs high, the atmosphere remains informal, and colleagues support and motivate each other. You will have significant influence over your own work, with ample opportunities for both professional and personal development.

You will work on industry-leading products, help drive innovation and continuous improvement to deliver maximum value to our customers.

Areas of responsibilities:

  • Help drive innovation in a product used by thousands of people helping to keep us safe in everyday life

  • Implement new functionality, refactor existing components, and build on top of a core UI components library

  • Build and maintain a UI components library

  • Collaborate closely with designers and product managers to bring creative ideas to life

  • Continuously improve product usability and performance with a strong eye for detail and design

  • Drive architecture and solution designs

  • Help drive quality improvement in frontend-related challenges

About you

With an eye for visual design and the ability to bring data to life through interactive interfaces, you are an engineer with some years of experience working on digital products. You communicate well in English, both written and spoken, and take pride in writing structured, high-quality, well-tested code. You always seek the best solution while keeping simplicity in mind, and your interest in big data and experience with relevant technologies drives your work. You are passionate about learning new technologies and enjoy sharing your insights with colleagues.

You have experience with:

  • 3-5 years of experience with React

  • JavaScript (ES6)

  • TypeScript

  • StoryBook or something similar

  • HTML5, SASS, CSS and SCSS

  • Building and maintaining a UI components library

  • Usability and user experience

We consider it an advantage if you have experience with:

  • React and the JavaScript ecosystem

  • Browser support and scalability

  • Quality assurance

  • Node js

Even if you don’t tick off all the boxes listed above, don’t hesitate to apply and let us know what else you bring to the table that should make us consider you for this role.

Be part of the XCI Team

You will be a par of our creative community of +170 experts who believe in XCI’s core purpose of protecting us all against criminal threats. Our projects present complex technical challenges that have real meaning and contribute to making society safer.

As part of the XCI team, you should expect to work with motivated and happy colleagues in a dynamic work environment. The informal XCI culture has "freedom under responsibility" as its internal motto, which allows you flexible working hours and a good work/life balance. We prioritize employee development very highly, and there is always a focus on your professional and personal development.

Application

We are very much looking forward to hearing from you.

If you have any questions about the position, you are welcome to contact Development Manager Andreea Ceachir at [email protected].

We conduct interviews on an ongoing basis and will close the recruitment process once the right candidate has been found.

We look forward to hearing from you!

Due to GDPR, applications can only be submitted via the link provided in the job posting.

All employees at XCI must be able to obtain a security clearance, which is why we will request a clean criminal record during the recruitment process.

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