Front End Team Lead

Flat Rock Technology is a leading software development company that offers custom software development, outsourcing and cloud management services to clients around the world.

We serve as a reliable partner to medium and large-sized businesses since 2008. Today we unite more than 200 highly-skilled professionals in our offices in London, Amsterdam, Tbilisi, Varna, Ruse, Burgas and Budapest.

We are highly devoted to our improvement and are constantly in search of upgrading our knowledge to meet the evolving need of our clients. Flat Rock Technology is a Microsoft Gold Certified Partner and ISO 9001:2013 and ISO 27001:2015 Certified.

Our team is constantly growing and searching for professionals to join us. We encourage learning, personal development and life & work balance. With more than 14 years of experience and commitment to delivering exceptional results, Flat Rock Technology is the right place for you to grow and develop your talent!

Main responsibilities:

• Lead Development: Guide and participate in the design and development of complex front-end applications using modern JavaScript frameworks.
• Mentor & Coach: Support team members through code reviews, 1:1s, and continuous feedback, fostering a culture of learning and technical excellence.
• Architecture & Design: Make architectural decisions, enforce coding standards, and establish scalable front-end patterns and practices.
• Collaborate: Work closely with Product Owners, UI/UX designers, and Backend Leads to translate requirements into high-quality deliverables.
• Optimize: Ensure code performance, maintainability, and scalability across devices and browsers.
• Innovate: Evaluate and integrate new tools, libraries, and best practices to improve the development workflow and application performance.
• Plan: Participate in sprint planning, task estimation, and team capacity tracking in Agile development environments.

Requirements:

• 5+ years of front-end development experience, with at least 2 years in a team or technical leadership role.
• Degree in Computer Science or related field and/or demonstrated capability through previous experience
• Expert in JavaScript (ES6+), TypeScript, HTML5, CSS3.
• Deep proficiency in React (in addition Angular or Vue.js) and experience with React Native or other hybrid mobile frameworks.
• Proven experience building and maintaining design systems, component libraries, and reusable UI components.
• Hands-on experience with modern CSS techniques, CSS-in-JS, preprocessors (SASS, LESS), Tailwind CSS, and styled-components.
• Proficient in module bundlers and build tools like Webpack, Vite, Rollup, and task runners.
• Solid knowledge of RESTful APIs, GraphQL, and API integration patterns.
• Familiar with state management libraries (Redux, MobX, Zustand, NGXS, Pinia).
• Understanding of cross-browser compatibility, accessibility (WCAG standards), and responsive design.
• Experience with Jest, Testing Library, Cypress, or similar testing frameworks.
• Familiarity with CI/CD pipelines, Git workflows, and modern DevOps practices.

Leadership & Communication:

• Strong people management skills, capable of leading 3–6 developers.
• Experience in recruiting, onboarding, and performance management.
• Excellent written and verbal communication in English.
• Strong decision-making and problem-solving skills, with a proactive mindset.

Nice to Have:

• Experience with using AI platforms in the development process.
• Experience with Micro-Frontend architecture or Module Federation.
• Familiarity with WebSockets, OAuth2/JWT, and real-time applications.
• Knowledge of server-side rendering (Next.js) and static site generation.
• Exposure to mobile-first development and PWA best practices.
• Background in the gaming industry or high-traffic consumer platforms.

What we offer in return:

• Hybrid Work: Flexible working arrangements to suit your lifestyle.
• Attractive Compensation: Competitive salary packages based on performance.
• Health & Wellbeing: Comprehensive health insurance and wellness support.
• Leadership Development: Training and mentorship for tech leaders.
• Innovation Culture: Opportunities to experiment, influence, and shape tech strategy.
• Team Culture: Inspiring colleagues, team-building activities, and an engaging work environment.
• Modern Environment: Well-equipped office spaces, lounges, and recreation areas.

Privacy statement:

Join Us: If this sounds like the next step in your career, we’d love to see your CV (in English). All applications will be handled with the utmost confidentiality, and only shortlisted candidates will be contacted for an interview.

We can’t wait to meet you!