Participate in the next great thing.
Do you enjoy taking on challenging tasks?  Do you have a strong desire to develop solutions that advance commerce?  Do you think it's important to support and uplift those around you?
Concerning us:
The market leader in digital checkout systems in the Nordic region is Kustom, formerly known as Klarna Checkout (KCO).  We now provide a simplified checkout process to more than 24,000 businesses in more than 170 countries.  In 18 markets, we provide specialized solutions that are suited to certain payment methods, currencies, and languages.  We provide a checkout experience that satisfies the demands of both merchants and customers, fostering development everywhere, regardless of where companies are located.
The part:
To join our development team, we are looking for a Frontend JavaScript Engineer with ability and enthusiasm.  Using contemporary JavaScript frameworks, you will be in charge of creating and implementing user interface elements in this position.  To create fluid and captivating web apps that maximize user experience and increase conversions, you will collaborate closely with our UX/UI designers and backend developers.
Activities you'll be engaging in:
. Create and manage features that interact with users using HTML5, CSS3, and JavaScript.
. Make reusable components and front-end libraries for future use.
. Applications should be optimized for scalability and performance.
. Collaborate with cross-functional teams to discover, create, and introduce new features.
. Verify the UI/UX designs' technological viability.
. Put in place user interfaces that improve conversion rates and user experience.
. Write code that is clear, tested, and maintainable.
. Keep abreast with new developments in frontend development trends and technology.
Proficiency and background  You'll require:
. a bachelor's degree in engineering, computer science, or a similar discipline.
. 5+ years of frontend development experience in the workplace.
. competence with Vue.js, React, Angular, or JavaScript ES6+.
. strong knowledge of responsive design concepts, HTML5, and CSS3.
. familiarity with state management tools such as Vuex or Redux.
. knowledge of handling asynchronous requests and RESTful APIs.
. familiarity with contemporary authorization methods, such JSON Web Token.
. competent knowledge of Git and other code versioning systems.
. familiarity with front-end testing frameworks such as Cypress, Jest, Mocha, or Playwright.
. Excellent problem-solving abilities and meticulousness.
. outstanding teamwork and communication skills.
We believe you'll thrive in this role if you have:
. If you are familiar with Next.js and server-side rendering, we think you'll succeed in this position.
. knowledge of TypeScript.
. familiarity with web speed enhancement methods.
. strong knowledge of best practices and the concepts of user experience (UX).
. familiarity with conversion rate optimization (CRO) and A/B testing.
. familiarity with Scrum and Agile development techniques.
Advantages:
. strong pension scheme that includes both occupational and national components
. Outstanding health insurance that offers choices for salary exchange and protection against long-term illnesses
. A wellness stipend of 3,000 SEK each year to spend on your fitness and well-being
. When significant holidays (like Christmas Eve and New Year's Eve) come on a weekend, there is an extra day off.
. Opportunities for ongoing education and assistance with professional growth
A location for growth:
You won't be simply another face in the throng at Kustom.  Here, we support one another and rejoice in our collective accomplishments.  We are confident in our capacity to produce quality while enjoying the process!
We are aware that we have high standards, but we also understand that success isn't always a straight path.  We encourage and support one another to try, fail, and try again.  Because that's how we develop both as a team and as individuals.
Do you think this is the right place for you?
Concerning your application:
. Please use English when applying.  Everyone is welcome at Kustom!  Unless we're celebrating together, in which case we'll need to know, we don't care where you're from, who you love, or what your favorite dish is.  We support inclusion for everyone.
. We treat every candidate equally in light of the aforementioned!  To keep track of all the incredible talent that applies, we have this fantastic recruiting tool. Please use it to apply, and we'll keep you informed throughout the hiring process.  Please be aware that resumes and other similar materials supplied by email cannot be tracked by us.
. Your privacy is important to us!  We'll take good care of your data when you apply.  Are you curious about how we utilize your data?  We have all the information you need in our frequently asked questions, which are located at the bottom of the employment page.