KTO Group
KTO Group

Senior FrontEnd Developer

April 21, 2025
Full-time
Remote · United Kingdom
Mid-Senior level
Front-end Developer
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Welcome to KTO Group, where innovation drives excitement in iGaming. Founded in 2018 by Andreas Bardun, we’re transforming online gaming with a focus on transparency and player satisfaction.

At KTO.com, we blend the thrill of sports betting with online casino entertainment, tailored to local markets and powered by our proprietary platform for a seamless, personalized experience.

KTO is a rising leader in LATAM, proudly ranked among Brazil’s top 10 iGaming brands. Join us as we set new standards in trust, innovation, and the future of iGaming.

Join KTO as a Senior Frontend Developer and collaborate with our design team to create visually stunning and highly functional web applications. You will be responsible for translating wireframes and mockups into responsive and efficient web applications using ReactJS and Gatsby. If you're passionate about creating exceptional user experiences and have a strong foundation in frontend development, we want you on our team.

Main Responsibilities

  • Collaborate with the design team to translate wireframes and mockups into functional web applications using ReactJS and Gatsby.
  • Develop and maintain reusable, efficient frontend components and implement new features to meet project requirements.
  • Integrate various data sources, such as APIs and databases, into our websites to provide dynamic content and functionality.
  • Optimize web applications for search engine visibility and performance through techniques like image optimization, code splitting, and asset optimization.
  • Write comprehensive tests to ensure the stability and reliability of the codebase, using tools like Jest and React Testing Library.
  • Participate in code reviews, providing constructive feedback and ensuring code quality and best practices are maintained.
  • Provide technical guidance and mentorship to junior developers, helping them grow and develop their skills.

Experience & Qualifications

  • Proven experience in frontend development, with proficiency in ReactJS and Gatsby.
  • Strong understanding of HTML, CSS, and JavaScript, with experience in building responsive and accessible web applications.
  • Experience integrating data sources, such as REST APIs and databases, into frontend applications.
  • Knowledge of web performance optimization techniques and best practices.
  • Experience writing unit tests and familiarity with testing frameworks like Jest and React Testing Library.

At KTO, diversity isn't just a buzzword – it's our strength. We're all about creating an inclusive environment where everyone feels valued and empowered. Together, we're not just working on projects – we're making a real impact in our communities. Join us in celebrating diversity and driving meaningful change!

At KTO, diversity isn't just a buzzword – it's our strength. We're all about creating an inclusive environment where everyone feels valued and empowered. Together, we're not just working on projects – we're making a real impact in our communities. Join us in celebrating diversity and driving meaningful change!