Front-End Developer, Payment Experience

WHO WE ARE
At Trustly, we're building a smarter, faster, and more secure financial future by revolutionizing the world of payments. As a global leader in Open Banking Payments, we are establishing Pay by Bank as the new standard at checkout, providing unparalleled freedom, speed, and ease to millions of consumers and merchants worldwide.

Our Ambition: To build the world’s most disruptive payment network and redefine what the payment experience should feel like.

Trustly is a global team of innovators, collaborators, and doers. If you are driven by a strong sense of purpose and thrive in a dynamic, entrepreneurial, and high-growth environment, join us and be part of a team that’s transforming the way the world pays.

About The Role
We are looking for an all-star Front-End Developer with strong Typescript experience to join our team in Stockholm, Sweden. You’ll primarily be working on improving the Checkout experience for millions of customers across Europe. You are a frontend developer by heart, who is eager to take responsibility and drive things end-to-end.

About The Payment Experience Team
The Payment Experience team manages the payin and deposit product at Trustly, which is one of our core offerings. The team is a mix of frontend and backend engineers, working closely with UX and neighbouring teams. On a daily basis, the team focuses on improving existing product flows and managing new or changing integrations, with the aim to create the highest converting payment product on the market.

What you'll do:
• Be a part of our payment team and build the UI for the next-generation payment platform using React.
• Learn new methods and techniques in a team where pair and mob programming is part of the daily methodology.
• Work closely with other developers, UX Designers, and product owners on a daily basis.
• Maintain a high focus on writing clean, testable code.
• Analyze large volumes of data to find possible problems and propose performance improvements.
• Identify performance issues and propose solutions.
• Support new developers on the company and train them on the development process, patterns, and features.
• Participate in functional meetings with non-engineering teams, offering knowledge of all front-end features and skills to propose solutions.
• Be able to participate in incident meetings and create an action plan.
• Drive technical initiatives from ideation to completion, influencing how your team collaborates and ships code.
• Design, develop, test, deploy, maintain, and improve software; take full responsibility for the lifecycle of your code.

Who you are:
• Expert understanding and deep practical knowledge of state management, API integration, and frontend testing frameworks, ensuring robust and maintainable code
• Highly skilled in JavaScript/TypeScript, including ES6+ features, asynchronous operations, and contemporary web development methodologies.
• Significant practical experience with current web frameworks such as React.
• Demonstrated success in building fast, high-performance web applications, with a focus on speed optimisation, adherence to accessibility standards (WCAG), and reliable cross-browser functionality.
• Familiarity with CI/CD (Continuous Integration/Continuous Delivery) practices.
• Familiar with using AI-tools in software development
• Ability to navigate across the entire technology stack, not limited to the frontend scope.
• Strong communication skills and fluency in English.

• Experience in mobile app development, specifically covering both iOS and Android platforms.
• Knowledge of infrastructure orchestration using Kubernetes and Istio for traffic flow management.
• Proficient in application monitoring, leveraging tools like Datadog for system reliability.
• Experience of Java for building scalable and maintainable backend services.
• Expertise in end-to-end testing methodologies, utilising modern frameworks like Playwright.
• Familiarity with deployment control, specifically using feature flag tools like Config Cat.
• Interest in User Experience (UX), ensuring technical deliverables align with design principles.
• Proven ability to manage merchant integrations and provide direct technical customer support.

• Responsible and proactive in driving things end-to-end.
• A collaborative spirit, as you will be one of a small number of Front-end developers—it is important that we do not work in a silo.
• A willingness to act as a cross-team bridge between different teams and systems.

Our Fantastic Benefits (varies by location)
🌴 20 to 30 days of holiday to support a healthy work-life balance
🥳 Monthly team outing allowance to enjoy social events with your colleagues
👶 Parental leave top-up additional support for new parents
🥐 Daily breakfast and on-site perks to make your workday smoother
💚 Well being support our health allowance covers gym memberships, massages, and much more to help you feel your best
PLUS additional benefits designed to enhance your work-life experience!

Shape Your Role and Make an Impact
Join a dynamic environment where you can take ownership, drive change, and continuously embrace new challenges. We’re looking for dedicated and highly motivated individuals who thrive in a fast-paced environment and enjoy collaborating across different areas of the organisation.
If your skills and experience align with this role, we’d love to hear from you! Apply now and submit your CV in English.