Skip to main content

Senior Software Engineer, Javascript

Location: Stockholm, Sweden

Contract Type: Full Time Permanent

Apply

Our DevOps culture is strong: we believe in “release small, release often.” Thanks to our fully automated CI/CD pipelines, we push over 13,000 releases to production every year, delivering value to customers in real time. We use modern technologies across backend, frontend, apps, data and infrastructure, and we’re continuously evolving. We tackle complex engineering challenges such as real-time scalability, database migrations with no downtime, and peak transaction loads, all while maintaining an exceptional and safe customer experience.

Turning skills into thrills

    Turning skills into thrills

  • Technical Expertise
  • Strategic Thinking and Innovative
  • Adaptive Problem-Solving & Experimentation
  • Cross-Functional Collaboration
  • Agility & Adaptability
  • Curiosity & Continuous Learning

United by our three values

illustration of a heart Passion to succeed

Striving for excellence and beyond

illustration of a scale Accountability

Taking ownership and upholding high standards every day

illustration of a group of people Collective Spirit

As one team, we achieve more

Senior Software Engineer, Javascript

The Role:

As a Senior Software Engineer in Gaming, you are a key contributor within the Frontend team, responsible for building, and maintaining high-quality, scalable frontend solutions that directly impact our customer-facing gaming experiences. You take strong ownership of your work and actively contribute to the team's success by sharing knowledge, mentoring others, and providing thoughtful technical feedback.

You identify and drive improvements in code quality, performance, and development practices, and proactively address technical and process gaps within the team. With a mature understanding of technical governance, you make well-reasoned decisions and maintain a long-term perspective on the frontend architecture, components, and applications, ensuring they remain robust, maintainable, and aligned with Gaming's strategic goals.

Key accountabilities:

  • Develop high quality code using the most appropriate techniques and design patterns

  • Designs solutions to meet the requirements (business and tech). Able to challenge and proactively suggest improvement to requirements

  • Contributes to best practice, pro-actively looks to improve status quo e.g. can the team improve logging, performance testing etc.

  • Focused and engaged in team commitments, takes ownership to help the team reach their goals

  • Constructively critique solutions and code of peers

  • Actively seeks to automate where relevant with a shift left mindset (catch bugs early during development)

  • Follows and implements good practices in quality assurance (BDD, TDD)

  • Confidently makes decisions affecting the team

Skills, knowledge and experience:

  • Strong Javascript experience 6+ years with React.

  • Proficient in React and other libraries of the ecosystem (ReactQuery).

  • Strong understanding of frontend architecture

  • Experience with design system and common shared libraries

  • Solid knowledge of frontend testing practices, including unit, integration, and end-to-end testing, with a focus on reliability and maintainability.

  • Good understanding of frontend security principles, such as data protection, and mitigation of common web vulnerabilities.

  • Experience collaborating closely with UX, product, and backend teams to deliver high-quality gaming experiences with direct customer impact.

  • Maintain the team's CI/CD pipelines

  • Ability to break down technical GAP documents/requirements into deliverable work items

  • Experienced in working with agile practices and able to suggest improvements to the team's process

  • Good communication skills to work with team and stakeholders

  • Experienced in incident management

  • Ability to effectively represent the team in stakeholder discussions using domain concepts and language

  • Understanding of risk assessment and impact analysis

Apply

Testimonials

  • Bertrand Le Piolot
    Photo de profil Bertrand Le Piolot

    My mission is to position cybersecurity as a business enabler, by finding the right balance between security requirements and business development objectives.

    Bertrand Le Piolot
    Group Cybersecurity Director
  • Lesya Liskevych
    Photo de profil Lesya Liskevych

    Our team turns every customers interaction into mainingful insights, leveraging AI to personalise and enhance the user experience on our gaming platform.

    Lesya Liskevych
    Head of Product Insights & AI Automation Technology
  • From improving product features to enhancing safe gaming practices, data isn't just information, it's a catalyst for innovation and maintaining the Group's integrty.

    Nonna Shakhova
    Cloud Data Engineer
    Nonna Shakhova
    Photo de profil Nonna Shakhova

A European gaming champion

FDJ UNITED is a European leader in betting and gaming, trusted for its iconic brands and technological strength across around 15 regulated markets. We’re rapidly digitising our lottery business and expanding our sports-betting footprint, creating exciting opportunities to build the next generation of player experiences. Here you’ll work on high-impact projects: modernising platforms, scaling data-driven personalisation, and developing tools that both delight customers and protect them. Our goal is to strengthen customer relationships through smarter identification and insights. That means meaningful, purpose-driven work, from customer service to marketing, product design, compliance and more. All within an international, innovation-focused environment. We are shaping the future of gaming, join us!

Learn more

Benefits

These are flip cards. Activate by pressing Enter or Space

LET’S STAY IN TOUCH

Don't see what you are looking for? Sign up and we'll notify you when roles become available.

Interested InSelect a job category from the list of options. Select a location from the list of options. Finally, click “Add” to create your job alert.