Frontend Engineer (React/React Native)

KindGeek is looking for a detail-oriented engineer who takes real pride in the quality of the interfaces they build. Your mission will be to deliver polished, high-performance user experiences across web and mobile for a regulated UK fintech platform that manages hundreds of millions in assets. Depending on the project phase, your focus may shift between a Next.js web platform rebuild and React Native mobile development — so versatility and a genuine care for both surfaces matter.

As a Frontend Engineer, you will be responsible for:

• Implementing new customer-facing UI on a Next.js web platform, translating Figma designs into pixel-precise, production-ready interfaces;
• Developing and maintaining React Native features for iOS and Android as needed, including periods where mobile is the primary focus;
• Building and maintaining reusable, well-typed UI components in TypeScript, contributing to a consistent design system across web and mobile;
• Integrating frontend interfaces with REST backend APIs, handling data flows, validation logic, and error states cleanly;
• Working in parallel with a legacy platform — maintaining existing functionality while delivering the new web experience;
• Contributing to code reviews and raising the bar for code quality across the engineering team;
• Debugging issues across web and mobile environments and proactively improving platform reliability.

We're looking for a Frontend Engineer who has:

• 5+ years of professional frontend engineering experience;
• Strong command of React and TypeScript, writing clean and maintainable code;
• Solid experience with Next.js, including understanding of SSR, SSG, and client-side rendering trade-offs;
• Hands-on experience with React Native for iOS and Android development;
• Solid understanding of design systems and UI component architecture;
• Experience integrating with REST APIs in production applications, including auth flows, cookies, and security considerations;
• A sharp eye for UI detail and a genuine care for user experience quality;
• Experience working on legacy codebases — maintaining existing systems while simultaneously delivering a new platform;
• Strong problem-solving skills and the ability to work independently in a small, high-autonomy team;
• Comfort operating with vague requirements — ability to ask the right questions, find answers in documentation or code, and move forward.

Will be a plus:

• Experience working in fintech, lending, or compliance-heavy environments;
• Familiarity with frontend testing frameworks (Jest, Cypress, Playwright) and CI/CD pipelines;
• Knowledge of web accessibility standards (WCAG) and inclusive design practices.

We want you to thrive and feel supported

• Professional growth: at Kindgeek, we want our employees to grow and achieve ambitious professional goals. We support professional development with training and certification refunds and provide regular feedback and technical reviews.
• Benefits package: Kindgeek offers all team members competitive compensation and a benefits package that includes 18 working days of fully paid vacation, 10 compensated by 50% sick leaves without a note from the doctor, and an opportunity to take study leaves. Depending on how long you stay in the company, you can receive different health insurance packages from our partners.
• Personal growth: as a part of our team, you will have access to corporate English courses with a 50% reimbursement, take advantage of our offline library and access a large selection of corporate training and classes. Also, every employee can request any internal or external training or certification if it applies to his or her work responsibilities.
• Geek community: at Kindgeek, we value community – even in the full-scale invasion times, we take every opportunity to stick together. Our geeks organise various online and offline clubs – from stretching and skiing to English. We volunteer together and support each other.
• Flexibility: Kindgeek offers a hybrid working model. Team members can work remotely or from the office or Kindgeek London Hub – an innovative cafe-style co-working in Lviv (it's pet-friendly!).

At Kindgeek, we encourage everyone to apply – regardless of nationality, race, gender, marital status, disability, sexual identity, or religion. We are growing into an inclusive, equal-opportunity company where only professionalism, competence, and ideas matter. We are committed to supporting mobilised employees and veterans joining Kindgeek and facilitating their career development. We aim to bring equal opportunities to all team members and candidates – especially those underrepresented in technological companies.