Slagkryssaren - Web & Mobile App Development

The Tech Agency that prides itself on quality work, delivered on time

Who we are

Highly competent software development specialists with special strengths in mobile platforms, back-end, cloud computing, artificial neural network technologies and software architecture.

What we do

We help our clients get the results they need on time and on budget. We pride ourselves on being up-to-date with the most recent and upcoming technological developments and a team of excellent developers.

Why clients love us

Our clients praise us for the quality of our work, our sound advice and the speed of delivery. They appreciate our ability to integrate with their teams and our attention to detail. At SK we carry a high sense of ownership and interest in the products we work with.

Interested in working with us?



What matters most to us

We help you create the custom software solution that brings most value to your business. We cover any parts needed to build a world class digital service that can strengthen your competitiveness or simply save time and cost.

Highest Quality

Best in Class


On Time and Budget


We offer comprehensive app development across all major platforms.

iOS and Android mobile app development

Slagkryssaren has longstanding experience in mobile application development. Our strong team of developers work with startups and multinationals alike. We ensure the best technological and design solutions.

  • iOS, Swift and Objective C with Xcode
  • Android development, Kotlin and Java
  • Multi-platform apps with React Native
  • Continuous integration and deployment using Fastlane and Jenkins
Web development

At Slagkryssaren we pride ourselves on our efficiency and proficiency in a wide array of technologies. We always aim to work with the technologies that best serve our clients' and their specific needs.

  • React.js, Angular.js and other front-end frameworks
  • Ruby on Rails, Django, Spring and other back-end frameworks
  • Back-end languages such as Go, Node.js, C#, Python and PHP
  • AWS (e.g. EC2, S3), Heroku and other cloud services
  • Expertise in many different dialects of SQL (e.g. MySQL, MSSQL, PostgreSQL) & NoSQL (e.g. MongoDB, Redis)
Other services

In addition to building great digital services we are regularly involved in related topics as expert advisors or second opinion.

  • GDPR compliance
  • Technical due diligence
  • Technical expertise for M&A activities
  • Architecture and scaling
  • Jump start of new digital initiatives


At Slagkryssaren the best minds are at play, whatever the current. Come sail with us!

Sail with Us

Slagkryssaren is a company for developers by developers. We understand the importance of taking care of our talented employees and to challenge them with new exciting projects. We strongly believe in creating a good work environment where everyone feel comfortable and welcome.

We love to code:

Everyone at the company loves software development. No boring lunches when everyone is having a heated debate on the latest technologies.


We have an awesome office in the absolute center of Stockholm with lots of great lunch restaurants and bars nearby.


We enjoy hanging out together, share a beer at the office or watch the latest sci-fi movie. Many of us are also happy gamers and love to play a match of CS:GO or LoL at the end of the work day.


We have our own Tech Talks and other inspiration events to boost your tech skills. We also try to make sure our developers can attend awesome conferences and meet-ups!


We have a flat hierarchy and believe in sharing information with everyone. Our salary model is transparent and beneficial for developers. We pride ourselves on providing a lot of individual freedom.


Sweden and Stockholm is consistently recognised as one of the world's best places to live. Adding to that, Stockholm has a very innovative IT-industry and a vibrant start-up scene.

Open Positions

Software developer

We are constantly looking for talented developers to expand our team. If you are interested in working with us don't hesitate to get in touch!

Minimum qualifications:
  • Programming talent and interest.
  • BA/BS degree in Computer Science or related technical field or practical experience.
  • Fluent in English and/or Swedish.
Appreciated qualifications:
  • iOS, Android or React native development.
  • Web app development in React or other similar frameworks.
  • Web service development.
  • DevOps experience.
  • CI/CD processes.
  • Experience with databases.
  • Automated software testing practices.

Apply Now!


Share your thoughts and ideas with us, we appreciate your feedback

Business inquiries

Gabriel Haglund
+46 (0)709 96 98 49
[email protected]

Career opportunities

Oskar Henriksson
+46 (0)704 68 15 64
[email protected]
Stockholm office
Slagkryssaren AB
Drottninggatan 78
SE-111 36 Stockholm
[email protected]
London office
Slagkryssaren UK Limited
5 Upper Montagu St Marylebone
London W1H 2AG
[email protected]