Senior Developer
Senior Developer – Shape the Future of Fiber Broadband! Join COS Systems in Umeå to develop innovative software, solve complex challenges, and drive global impact in a dynamic team. Apply now!
Senior Developer – Join Our Global Team and Shape the Future of Fiber Broadband!
About COS Systems
We are a global software company that helps our clients connect people to high-speed fiber broadband, enabling their full participation in today’s digital world and economy. Our headquarters are located in Umeå, Sweden, but we have a global presence with team members in the USA, which together with Canada, is our most important market. You will work in an international environment where innovation and collaboration are key.
About the role
As a Senior Developer at COS Systems, you will play a crucial role in designing, developing, and maintaining our industry-leading software solutions. You will work closely with our product, support, and test teams to build scalable and high-performing applications that drive the fiber broadband industry forward. Your expertise will contribute to solving complex challenges and improving system architecture.
This is an exciting opportunity for an experienced developer who thrives in a dynamic environment and wants to make a significant impact on both technology and business growth. You will have the chance to influence product development, optimize performance, and ensure our solutions remain at the forefront of the market
We’d love to hear from you if you
- Have extensive experience in software development, preferably with a background in web-based applications and cloud solutions.
- Are proficient in modern programming languages such as C#, JavaScript/TypeScript, and frameworks like .NET and React.
- Have strong skills in database management (SQL, NoSQL) and system architecture.
- Thrive in a collaborative, agile environment and enjoy working closely with colleagues to drive innovation.
- Have experience with DevOps, CI/CD pipelines, and cloud platforms such as Azure or AWS (a plus).
- Are a problem solver who enjoys analyzing complex technical challenges and finding efficient solutions.
- Have excellent communication skills and can effectively work with international colleagues across different time zones.
- Are fluent in both written and spoken Swedish and English.
- Have experience with Microsoft’s development environments (C#, MS-SQL, Azure DevOps).
We offer you:
- A unique opportunity to be an important part of a fast-growing global tech company.
- A dynamic work environment with a strong company culture that values collaboration and expertise.
- A fun and very nice office environment in central Umeå, with the flexibility to work partially remotely.
- A supportive manager who encourages your personal and professional growth and gives you the freedom to achieve great results in your own way.
- A competitive salary and benefits package.
Are you the experienced developer we’re looking for? Apply now and join our global team!
Questions about the position are welcomed and directed to Mattias Viberg,
Head of Software Engineering: mattias.viberg@cossystems.com
Department: Development
Role: Senior Software Engineer (full-time entry-level)
Location: Umeå
- Department
- Product & Development
- Role
- Senior Developer
- Locations
- Sweden
Sweden
About COS Systems
Everything begins somewhere, and our beginning was in the north of Sweden. COS Business engine was founded in 2008, which is not that long ago but in the infancy of fiber infrastructure technology. In 2009 the Swedish parliament ratified a government order that in 2020, 90 % of all households should have access to high speed internet, symmetrical 100 Mbit/s. Due to a very successful development the goal was raised in 2016, so that 95% should have 100 Mbit/s in 2020 and in 2025 98% of the Swedish households should have access to 1Gbit/s (1,9% should have 100Mbit/s and 0,1% at least 30Mbit/s).
This digital evolution in Sweden has only been possible due to the very high grade of automation of the fiber business and with an Open Access approach where take rates often exceed 80% and customers have a variety of providers to choose from, or being able to keep their existing provider independently of who builds the fiber network.
Swedish society has also become more digital native and being able to work from home was not a problem when Covid came. Sweden is also very high ranked in the tech industry with famous companies like Spotify, Klarna, Mojang, King, Skype, IZettle, Truecaller etc etc
It is in this context COS was built up and has been focusing in developing a software to support this nationwide rollout of a new high speed and robust digital infrastructure in Sweden. With the same focus and vision from day one COS now supports other countries all around the globe with similar challenges.
Senior Developer
Senior Developer – Shape the Future of Fiber Broadband! Join COS Systems in Umeå to develop innovative software, solve complex challenges, and drive global impact in a dynamic team. Apply now!
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