Senior Fullstack Software Engineer

Job Description

Do you want to build digital solutions that help millions of customers on their journey towards a fossil-free future?

At Vattenfall IT, we develop and operate digital solutions that create value for both our customers and our business. Innovation, collaboration, and continuous improvement are at the heart of everything we do. Together with our business partners, we are shaping modern digital experiences that support Vattenfall's ambition to enable fossil freedom within one generation.

We are now looking for a Senior Fullstack Software Engineer to join our team in Stockholm, Sweden.

About the position  
As a senior member of the team, you will contribute throughout the entire application lifecycle, from solution design and development to deployment, monitoring, and continuous improvement. You will help translate business goals into technical solutions while promoting modern software engineering practices and supporting knowledge sharing across the team.

Your tasks and responsibilities 

• Design secure, robust, and sustainable end-to-end solutions
• Translate product and business objectives into high-quality technical solutions
• Develop and continuously improve customer-facing applications
• Collaborate closely with software engineers, architects, Product Owners, UX designers, and business stakeholders
• Transform requirements into user stories and technical implementations
• Build automated tests and maintain efficient CI/CD pipelines
• Promote agile development methods and software engineering best practices
• Support knowledge sharing and technical mentoring within the team
• Contribute to continuous delivery of high-quality features and improvements
• Monitor application performance, reliability, and health throughout the application lifecycle

Qualifications

You are a passionate and experienced software engineer who enjoys creating high-quality digital products and solving complex technical challenges. You combine strong technical expertise with a collaborative mindset and are motivated by delivering great customer experiences. You take ownership, continuously seek improvements, and enjoy helping others grow through knowledge sharing and teamwork.

As our Senior Fullstack Software Engineer, you bring strong fullstack development experience and a solid understanding of modern cloud-based application development.

Next to this, you bring:

• University degree in Information Technology, Mathematics, Engineering, Computer Science, or a related field
• At least 6 years of professional experience in fullstack software development
• Good knowledge of Swedish
• Experience working with customer-facing digital products
• Experience mentoring developers and driving engineering excellence
• Passion for emerging technologies and continuous learning
• Strong experience with:
  • Angular 19 or later
  • TypeScript, HTML5, and CSS
  • C#, .NET Framework, and .NET 8 or later
• Experience working with Microsoft Azure and cloud-native development
• Hands-on experience with Azure DevOps, CI/CD pipelines, Git, and Gitflow
• Experience using development and security tools such as Visual Studio, GitHub, SAST, and DAST solutions
• Familiarity with modern AI-supported development tools such as Microsoft Copilot, GitHub Copilot, or Cursor
• Experience working in agile software development environments
• Ability to translate business and product requirements into secure, scalable, and maintainable technical solutions
• Strong collaboration and communication skills
• Fluent English, written and spoken

Additional Information

Our Offer 
We offer a challenging and international work environment and the possibility to work with some of the best in the field. You will be working in interdisciplinary teams and you can always count on support from committed colleagues as ‘Ask and Share’ concept is essential for the way we work. We offer attractive employment conditions (smart working, flexible working hours and a good-work-life balance) and opportunities for personal and professional development. Click here for further information.  

Location  
Stockholm

For more information: for more information about the recruitment process you are welcome to contact our recruiter: Marta Jura.

Trade Union representatives in Sweden via Vattenfall´s switchboard +46 8 739 50 00. 

We welcome your application in English no later than 30.09.2026. We kindly request that you do not send applications by any means other than via our website and that you refrain from submitting a cover letter with your application. You apply quickly and easily by answering screening questions and attaching your CV.
 
At Vattenfall, we value being active, positive, open, and safety-conscious. We are looking for employees who share our vision and can contribute to strengthening our corporate culture. We firmly believe that diversity helps build a more profitable and attractive company, and we strive to be good role models when it comes to diversity. Vattenfall actively works to ensure that all employees have the same opportunities and rights regardless of age, ethnic or cultural background, gender identity, religion/belief, sexual orientation, or disability. Read more about how we work with diversity and inclusion here.  

The security of Vattenfall and its employees is essential. For that reason, a pre-employment screening will be part of your recruitment process. The screening is based on the role you will fulfill within Vattenfall. 

Working at Vattenfall means working with critical societal infrastructure. Therefore, many of our positions are security-classified, and you may be required to fill a wartime posting. If this position is security-classified, a security clearance will be carried out before employment, in accordance with the Security Protection Act. Any potential wartime posting will be based on the employment contract and the Total Defence Service Act.

We look forward to receiving your application!