Fullstack Developer

At XXL, we're on a mission to create the best shopping experience for sports and outdoor enthusiasts across the Nordics. Behind every great customer experience is a strong technology team, and we're looking for a Fullstack Developer who wants to help us build and improve the digital solutions that power XXL.

As part of our in-house IT team, you'll work across the entire technology stack, developing everything from customer-facing e-commerce solutions to internal applications, integrations and automation. This is an opportunity to work with modern technologies, influence technical decisions and contribute to scalable solutions that make a real impact across the business.

About the role

As a Fullstack Developer, you'll be responsible for developing, maintaining and improving both frontend and backend solutions across XXL's digital platforms.

Working closely with developers, architects and business stakeholders, you'll contribute to everything from new features and integrations to infrastructure improvements and long-term technical development. We value developers who are curious, pragmatic and passionate about building robust, secure and scalable solutions.

What you'll be doing

As part of the development team, you'll:

• Develop new functionality across frontend, backend, infrastructure and integrations

• Improve and maintain our e-commerce platform and internal applications

• Build, maintain and optimise APIs and integrations between different systems

• Contribute to architecture discussions and technical decision-making

• Improve performance, scalability, security and cost efficiency across our platforms

• Design and maintain event-driven integrations, scheduled jobs, queue-based processing and synchronous/asynchronous system flows

• Debug and monitor distributed systems using logs, metrics and monitoring tools

• Work with CI/CD pipelines, deployments and multiple development environments

• Reduce technical debt and continuously improve code quality and maintainability

• Collaborate with the development team to continuously improve ways of working and engineering best practices

Who we're looking for

We're looking for someone who enjoys solving complex technical challenges and building high-quality solutions that last.

You likely have:

• At least 3 years of experience in a similar Fullstack Developer role

• Experience with modern JavaScript/TypeScript development

• Strong knowledge of React and Node.js

• Experience building frontend and backend applications using modern web technologies

• Experience working with REST APIs, integrations and API contracts

• Experience with serverless architectures and cloud-based solutions

• Good understanding of distributed systems, event-driven architecture and asynchronous processing

• Experience working with NoSQL databases

• Experience with Git, code reviews and collaborative software development

• Experience with CI/CD pipelines, automated testing and deployment processes

• Knowledge of application security, authentication, authorization and IAM

• You communicate fluently in English, both verbally and in writing. Swedish or Norwegian language skills are a plus

It's an advantage if you also have experience with:

• Next.js

• AWS services such as DynamoDB, S3, CloudWatch, ECS, API Gateway, Cognito or CloudFront

• Infrastructure as Code (CloudFormation/CDK)

• GraphQL

• Cypress or Playwright

• Web performance optimisation

• CSS, SASS, component libraries and Figma

• AI tools, automation and emerging technologies

• E-commerce platforms and digital retail

Who you are

We believe you'll thrive in this role if you are:

• Curious and eager to learn new technologies.

• Passionate about creating high-quality software.

• A proactive problem solver who enjoys taking initiative.

• Pragmatic and able to balance technical quality with business value.

• A collaborative team player who enjoys sharing knowledge.

• Structured and quality-focused, with a long-term mindset.

• Motivated by continuous improvement and modern ways of working.

Why join XXL?

At XXL, technology is an important part of our future. We develop many of our digital solutions in-house, giving our developers the opportunity to influence both technology choices and ways of working.

You'll become part of a collaborative team where knowledge sharing, continuous learning and innovation are highly valued. We offer exciting technical challenges, modern technologies and the opportunity to contribute to solutions used by millions of customers across the Nordics.

If you're looking for a role where you can combine hands-on development with real business impact, we'd love to hear from you.

Practical information

Location: HQ Stockholm

Due to the summer holiday period, we have set the application deadline to 23rd August. As a result, there may be a slightly longer response time than usual between your application and hearing from us.

We've replaced the traditional cover letter with a few screening questions, and you'll simply need to upload your CV as part of your application.

Please note that we only process applications submitted through our online application system.

If you have any questions about the role, please contact Peter Skogsberg, IT Development Manager, Peter.Skogsberg@xxl.se / +46 7024 18527

We look forward to hearing from you!