Frontend Technical Lead

Sonata One is a rapidly scaling, regulated fund services and technology (fintech) business.  We're The Private Funds Clearinghouse, connecting more than 53,000 investors with 6,500 funds and 180 fund managers around the globe. Our vision is to change the paradigm of private markets investing through harmonising the end-to-end investment process within one platform. Investors benefit from a seamless, one & done experience across the fund lifecycle (from fund selection and subscription through to settlement and reporting) underpinned by a globally compliant KYC passport and 24/7 support. Fund managers can raise capital faster at a lower cost from a wider pool of pre-approved investors.  Founded in 2015, Sonata One has a presence in eight locations worldwide including the US, UK and Luxembourg, Guernsey, South Africa and Mauritius.    

We operate as #OneGlobalThread in line with our values: We challenge the norm, we change the way we think and work, by connecting systems and people, while committing to our vision and each other. We are now looking to recruit an experienced Team Lead – Front End Developer to join our global team. 

Position Overview 

As the Frontend Technical Lead, you will play a critical role in shaping the technical direction of our frontend ecosystem. This role combines hands-on engineering with technical leadership, ensuring the delivery of high-quality, scalable frontend solutions. 

You will act as the technical authority for frontend development, leading architecture decisions, establishing development standards, and guiding engineers in building robust React applications. Working closely with Product, DevOps, and backend teams, you will help drive the evolution of our platform while ensuring engineering excellence. 

This role requires someone who is passionate about building performant, maintainable systems, mentoring developers, and creating best-in-class frontend experiences. 

Responsibilities 

• Provide technical leadership and architectural guidance for frontend development across the platform. 

• Design and maintain scalable frontend architecture using React and Next.js. 

• Establish and champion coding standards, best practices, and engineering principles across the frontend team. 

• Work closely with Product Owners, DevOps, and backend engineers to align technical solutions with business and product goals. 

• Lead technical discussions, design reviews, and architecture decisions for new features and platform improvements. 

• Ensure high-quality code through reviews, testing strategies, and performance optimisation. 

• Identify and implement improvements to developer experience, tooling, and development workflows. 

• Provide technical mentorship and guidance to frontend engineers, helping them grow their technical capabilities. 

• Contribute actively to the codebase, leading by example with hands-on development where required. 

• Support Agile development practices, contributing to planning, technical estimation, and sprint ceremonies. 

Qualifications 

• Strong hands-on experience with React, including frameworks such as Next.js. 

• Extensive experience developing modern web applications using TypeScript. 

• Proven experience designing frontend architecture and scalable UI systems. 

• Experience collaborating with backend engineers to build end-to-end applications. 

• Strong understanding of frontend performance optimisation and application scalability. 

• Excellent communication skills, able to translate complex technical concepts to both technical and non-technical stakeholders. 

• Demonstrated experience providing technical leadership, mentorship, or leading engineering initiatives. 

 Desirable 

• Experience with modern build tools and CI/CD pipelines. 

• Familiarity with cloud platforms and deployment environments (Azure DevOps, Vercel, AWS). 

• Experience with frontend testing frameworks such as Jest, React Testing Library, Cypress, or Playwright. 

• Experience working in Agile/Scrum environments and contributing to technical planning. 

• Knowledge of web security best practices, including OWASP principles and authentication/authorisation patterns. 

• Experience building design systems or reusable component libraries.