Who we are

We’re a dynamic and rapidly growing Corporate Services Group, led by a passionate founder and CEO. With a thriving customer base of over 500,000 and consistent year-on-year growth of 20%, we're transforming the business services space. From company formation and legal support to accountancy services and virtual offices, we offer everything businesses need to start, grow, and succeed. Profitable, innovative, and relentlessly customer-focused, we're on a mission to redefine how modern businesses are supported — and we’re looking for driven individuals to grow with us.

Job Summary

We’re seeking a Senior Frontend Engineer who combines technical excellence with a sharp eye for detail and a passion for delivering beautiful, pixel-perfect user interfaces. In this role, you'll play a critical part in shaping the user experience of our product by transforming high-fidelity designs into seamless, responsive, and accessible web applications using React and Next.js.

🎯 What You’ll Own & Lead:

• Develop, maintain, and optimize high-quality, responsive, and performant web applications using React and Next.js, ensuring a smooth and consistent user experience across devices and browsers.

• Collaborate closely with product designers to translate design concepts and Figma mock-ups into seamless, visually polished user interfaces that meet both aesthetic and functional requirements.

• Write clean, maintainable, and efficient code, adhering to modern development standards, accessibility guidelines, and industry best practices.

• Contribute to the front-end architecture, helping to define scalable patterns, reusable components, and maintainable structures to support long-term product growth.

• Participate in code reviews and technical discussions, offering constructive feedback and sharing knowledge with the engineering team to uphold code quality and consistency.

• Continuously improve performance of web applications through profiling, optimization, and the implementation of modern tooling and techniques.

• Stay up to date with the latest trends and advancements in frontend development, particularly within the React/Next.js ecosystem.

📚 What You Bring to the Table

• 10+ years of professional experience building modern web applications, with deep expertise in React and Next.js in production environments.

• A strong command of JavaScript and TypeScript, along with expert-level understanding of HTML and CSS, including responsive layouts, accessibility, and cross-browser compatibility.

• Proven ability to deliver pixel-perfect, high-quality UIs, with experience translating Figma or other design tools into clean, maintainable front-end code.

• A proactive, self-driven mindset with a strong sense of ownership — you take initiative, follow through, and hold yourself to a high standard of excellence.

• Demonstrated grit and drive — you’re not afraid to dive into complex problems, experiment, and iterate until you find the best solution.

• A collaborative team player who thrives in a fast-paced, dynamic environment, and is excited to contribute to a high-growth company and product.

• Experience using analytics, A/B testing, and other data-driven methods to understand user behaviour and inform feature development and optimization.

• Solid understanding of frontend performance, with the ability to identify bottlenecks and implement effective solutions.

Remuneration and Benefits

• 25 days annual leave, plus 8 public/bank holidays

• Employee Assistance Program

• 14 weeks maternity leave pay, 2 weeks paternity leave pay

• 2 paid Volunteering Days per year with our charity partner

• Annual cost-of-living salary increase

• Cycle to Work Scheme

• Dog-friendly office

• Indoor bicycle storage, changing and shower facility

• Free soft drinks and bean-to-cup coffee all day

• Free Wednesday lunches

• Free fresh fruit - daily

🌍 Who You’ll Be Working With

You’ll be surrounded by passionate, talented changemakers with big ambitions—not just for our business but for our world. Our teams are based remotely and on-site in London and Glasgow, and you’ll be the critical cultural connector between them all. We're a company striving for best-in-class service through empathy, integrity, and innovation—and we want you to be the voice and leader who helps us get there.

Equal Opportunities

1st Formations is an equal opportunity employer and is committed to creating a diverse and inclusive workplace. We consider all applicants for employment without regard to race, colour, religion, sex, national origin, sexual orientation, age, citizenship, marital status, criminal history, disability, or gender identity. We encourage individuals from all backgrounds to apply. If you have a disability or special need that requires accommodation, please let us know.