Senior Software Engineer (Full-Stack) 

Who We Are and What We Do  

At SilverRail, we're on a mission to reshape the way the world travels, and we're inviting you to be part of this journey. Rail is becoming the go-to choice for short and medium-haul travel worldwide, and we're here to help make it happen. 

In the face of the ongoing climate crisis, our vision is crystal clear. We are transforming the online customer experience for rail travel, making it easier than ever for customers to find, buy and use rail. Our cutting-edge technology is the backbone of rail and travel agencies worldwide, making it effortless for travellers to choose the eco-friendly option and reduce their carbon footprint.  

We have over 15 years of trailblazing success behind us, and our teams are spread across the globe, with bases in London, Boston, Brisbane, and Stockholm. We thrive on the philosophy of 'fail-fast-fail-early,' which drives us to find ingenious solutions to complex challenges. 

Join us, and help shape the future of travel! 

The Role  

As a Senior Full-Stack Software Engineer, you will play a key role in designing, building, and maintaining high-quality software solutions that support our evolving platform. Our team in Stockholm build products that are used by multiple API customers and travel agencies, enabling easy, accessible and frictionless rail ticketing across Europe. 
 
Working closely and cross-functionally, you will help translate business requirements into scalable, reliable technical solutions. You will contribute across the full development lifecycle, from requirements analysis and system design through implementation, testing, deployment, and ongoing optimization, all while applying best practices in code quality, maintainability, and performance. 
 

You will work in a collaborative Agile environment, actively participating in Sprint planning, backlog refinement, daily stand-ups, reviews, and retrospectives. As a senior member of the team, you will bring strong technical expertise and a passion for clean, maintainable code while contributing to architectural discussions, mentoring teammates, and continuously improving engineering practices. You will help ensure that new features meet the Definition of Done and that each Sprint delivers meaningful, high-quality value. 

Key Responsibilities  

• Analyse requirements and translate functional specifications into well-designed, scalable software components. 

• Design, implement, and maintain application features, contributing to both backend and frontend solutions. 

• Write clean, readable, and maintainable code that follows established engineering standards and best practices. 

• Develop and maintain comprehensive unit and integration tests to ensure reliability and maintain strong test coverage. 

• Produce and maintain clear technical documentation to support maintainability and knowledge sharing. 

• Design, implement and evolve REST and SOAP APIs to support internal services and external integrations. 

• Build and maintain modular, testable Spring/Java-based middleware applications that align with architectural standards. 

• Contribute to the design and architecture of applications and services, helping evaluate technical solutions and trade-offs. 

• Collaborate with cross-functional team members, including Product Managers, QA, Tech Ops and Platform Engineering, to deliver high-quality features within each Sprint. 

• Participate in Agile ceremonies, code reviews, and continuous improvement initiatives to ensure features meet the Definition of Done and engineering standards.   

Required Competence and Skills 

• Strong knowledge and experience with Java 17+, Spring and Spring Boot frameworks. 

• Experience running microservices in the cloud, specifically with AWS, Docker and Kubernetes. 

• Experience of Hibernate and relational databases including MySQL.    

• Experience building JSON and XML based APIs. 

• Strong knowledge of RESTful principles.  

• Experience with UI technologies including JavaScript/TypeScript 

• Experience with UI frameworks including React.JS 

• Experience working in an Agile (Scrum) environment. 

• Familiarity with design patterns, SOLID and TDD 

• Experience using Git/GitLab managing CI/CD pipelines. 

• Minimum 5 years of hands-on work experience.   

• BSc in Computer Science or equivalent experience. 

• Fluent in English both written and spoken. 

• Strong analytical and problem-solving capabilities. 

• Comfortable working in a fast-paced environment while finding solutions to complex challenges. 

Why us?  

• We utilise a hybrid working model, providing equipment for home working so you can work 2-3 days per week at home and 2-3 days per week in our beautiful central Stockholm office.  

• We are part of the Tech Sverige and Almega organisations offering a strong collective working agreement. 

• We provide a wealth of career development opportunities with training that is individual, focused on improving your skills and helping you become the best professional you can be.  

• Our team’s health and wellness is genuinely important to us, so we provide a generous annual Wellbeing Allowance for you to use. 

• A unique opportunity to work for a tech company that is helping the environment by revolutionising the way we travel.  

Our values are simple: Do Good by working for a better tomorrow; Think Big Act Smart by being curious, adaptable and data-driven; and remember that through collaboration we will always be Stronger Together.  

*We are a neurodiverse employer and are working hard to improve our recruitment processes, so if there is any way that we can make the recruitment experience better for you then please let us know in your application - all information will be treated as strictly confidential*  

At Betsson Group, the Player Rewards and Gamification Area ensures our customers come back for more! It’s all about loyalty. We provide a world class customer experience beyond the game play featuring exciting features like tournament, dynamic personalised campaigns and much more! We also work closely with our Commercial, Compliance and Data teams to build the next generation back-office tools to support their processes.

The Wow

As our Senior Product Manager, you will be a part of a cross functional development team where you will have the primary responsibility for defining, organising and prioritising requirements. You will work closely with business stakeholders within the organisation, as well as developers, architects and UX designers to continuously optimise the customer experience.

Together with your team you will take ownership of a number of customer journeys and/or capabilities where you will be one of the key people expected to drive and lead the delivery of new functionality as well as improvements of existing functionality. This will often require you to collaborate with other development teams and engage with a number of stakeholders to ensure a successful roll out. We operate in a fast paced and challenging industry, and you will have several opportunities to work on complex and cutting edge products and contribute to Betsson Group’s success.

A taster of what you will be involved with: 

• Proactively get input from relevant Business Units on operational needs and problems that need to be solved
• Align requirements, scope, and plan with company-wide initiatives
• Conduct competitors’ analysis
• Lead User Research, experimentation, A/B testing, UAT initiatives
• Own Product Roadmap and prioritization
• Set and track Product KPIs and Success Metrics for product deliveries
• Communicate iteratively on Roadmap changes and deliveries
• Working with UX and UI designers (and other stakeholders as necessary) to define the customer experience and product specifications
• Defining user stories with acceptance criteria together with the development team
• Defining tracking, reporting, and non-functional requirements for user stories
• Working with the team to refine, plan and prioritise user stories according to business value, always taking technical debt and the long term success of the product into account
• Collaborating with stakeholders and ensuring that they are kept up to date and aligned with the current progress and prioritization
• Helping the rest of the development team and Product Management peers to ensure that acceptance criteria are met
• Occasional travelling be required to our various offices

What we are looking for

• Prior software engineering experience or education.
• Collaboration and dialogue. You will be collaborating both with members of your development team, stakeholders outside the team as well as third party providers and partners
• Agile. Not just processes but a true agile mind-set where all members of the cross functional development team are involved and where changing requirements based on business needs and market opportunities are embraced
• Facilitating and creating workshops materials
• Prioritizing and taking educated decisions
• Collaborating with development teams
• Problem solving and tough conversations. We work in a high paced industry and having more requirements and expectations than capacity is the norm. You will play a key role in managing expectations and ensuring a sustainable pace in your team.
• You are technical enough to manage software product – backend, back-office, and player-facing features for the enterprise platform
• Understanding of APIs, SQL, event-based services and various API exploration tools, like Postman, Swagger, LINQ Pad or similar is a must due to most of functionality is in the backend and API, with limited exposure to UI
• Transactional business rules and algorithmic thinking
• Defining observability, logging requirements, coming up with metrics, alerts ad defining deviations from normal performance of the system.
• Good understanding and ability to define non-functional requirements is a must
• Analysing legal and regulatory requirements
• Product Discovery, Product Planning, and delivery tools (like Jira, Confluence, Miro or similar)
• Thorough documentation of decisions, requirements, analysis and dependencies
• Creating audience-specific presentations and workshop materials
• Gaming, Payments, Revenue Recognition and Accounting, Taxation, CRM, SAAS experience is a big plus

What we offer

Much like riding a rollercoaster, sometimes life at Betsson can be lightning fast with twists and turns but always FUN! Then again, what else would you expect from a business 75% millennial and 1700 strong, spread across 7 offices with 900 based out of our Malta HQ alone! We recognise it may not be for the faint-hearted, but if you’re a go-getter, initiator and adrenaline junkie, always striving to push the boundaries and challenge yourself, then you’ll fit right in.

Challenge accepted?

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