Lead Front End Developer

Shape the future of a cutting-edge engineering platform.We are partnering with an innovative technology company looking for a Lead Frontend Software Engineer to take ownership of the frontend architecture behind a complex, data-intensive software platform. This is an opportunity to lead the development of a highly interactive application used by technical professionals to analyse data, run simulations, and make critical decisions.As the frontend technical lead, you will drive architectural decisions, establish engineering best practices, and help shape the long-term direction of a sophisticated React and TypeScript application. The platform combines large datasets, analytical workflows, rich user interactions, persistent state management, and advanced 2D/3D visualisation capabilities.The RoleYou will work closely with product managers, designers, backend engineers, and subject matter experts to transform complex technical requirements into intuitive and high-performing user experiences.This position combines hands-on development with technical leadership and offers significant influence over frontend strategy, application quality, performance, and scalability.Key ResponsibilitiesOwn and evolve the frontend architecture of a large-scale React and TypeScript application.Define engineering standards, development practices, and technical direction.Lead the design and implementation of scalable, maintainable frontend solutions.Build performant user interfaces capable of handling large datasets and complex workflows.Drive browser performance optimisation, including rendering efficiency, asynchronous data loading, and memory management.Collaborate on API design and integration with backend services.Support the development of data visualisation and interactive user experiences.Mentor developers and promote a culture of knowledge sharing and continuous improvement.Ensure high standards for testing, debugging, observability, and production support.About YouEssential Skills & ExperienceStrong commercial experience with React and TypeScript.Proven experience leading frontend architecture for complex production applications.Experience building sophisticated software platforms involving analytics, simulation, scientific, engineering, or other data-heavy environments.Strong understanding of frontend architecture, application scalability, and software design principles.Experience with state management solutions such as Zustand, TanStack Query, Redux, or similar technologies.Strong understanding of performance optimisation for modern web applications.Ability to work across the full application lifecycle and collaborate effectively with backend teams.Excellent problem-solving and technical decision-making skills.Desirable ExperienceExperience with visualisation technologies such as D3.js, Plotly, Three.js, WebGL, or Canvas.Familiarity with engineering, scientific, GIS, CAD, simulation, or technical computing environments.Experience developing highly interactive software products used by specialist users.We are seeking someone who:Takes ownership and provides technical leadership.Communicates effectively with both technical and non-technical stakeholders.Is analytical, structured, and proactive in solving complex challenges.Balances architectural quality with business priorities and delivery objectives.Enjoys mentoring others and contributing to a collaborative team environment.Thrives in a fast-moving environment with evolving requirements.Embraces modern engineering practices, including the use of AI-assisted development tools.Is naturally curious and enjoys learning new technologies and domains.Why Apply?This is a unique opportunity to join a technology-driven organisation where frontend engineering plays a critical role in delivering value to end users. You'll have the autonomy to influence technical direction, work on challenging engineering problems, and help build a product that combines modern software engineering with advanced visualisation and analytics capabilities.If you're passionate about creating high-performance applications and leading frontend engineering excellence, we'd love to hear from you.