• Development and maintenance of medium- and high-complexity features, directly contributing to the product’s scalability and the satisfaction of our end users. • Technical refinement of solutions in collaboration with Product and Design teams, ensuring technical feasibility and visual fidelity (pixel-perfect) from conception in Figma. • Implementation of automated tests and monitoring of production applications, with a focus on innovation, continuous improvement, and ecosystem stability.

• Develop and maintain responsive, interactive web interfaces • Ensure good usability and accessibility practices • Integrate applications with RESTful APIs and backend services • Work with modern frameworks such as React, Angular or Vue.js • Ensure cross-browser and device compatibility • Participate in ceremonies and meetings with product, design and backend teams • Implement unit and UI tests to ensure quality • Use Git for version control • Support the definition of technical solutions and effort estimates • Fix bugs and continuously improve performance • Participate in code reviews

Role Description Lunar Gridshare is transforming how we use and manage energy in the home and on the grid. We manage solar, home energy storage systems, electric vehicles, and other energy-intensive flows in the home, optimising value and efficiency for end users and energy companies to reduce costs and carbon footprint. We are looking for a Senior Frontend Designer to join our small, focused and collaborative software team. Your work will focus on the Typescript+React-based web front-end to our platform, and its corresponding UI/UX designs. Your responsibilities would include: - Taking initiative to ensure delivery of high stakes and/or time sensitive deliverables - Working and coordinating across multiple teams to ensure delivery, raise standards and ensure consistency - Ensuring the quality and reliability of the Lunar Energy component library both at the software and design level - Contributing to the continual improvement of our development best practices You will be supported to work and grow your knowledge on multiple parts of the stack according to your interests and abilities. Our team has a strong tradition of using functional programming and type systems to build pragmatic and flexible systems to solve business problems. Qualifications - Expert level in Typescript, React and front-end development (HTML/CSS) - Expert level in UI/UX design, and tools such as Figma, Adobe Suite, and Sketch - Strong visual portfolio showcasing UI/UX design, data visualisations, and motion design - Experience in developing component libraries, including complex, high-interaction components such as charts, tables, date pickers, and other advanced UI patterns - Experience working in a functional programming paradigm or openness to doing so - Working experience with Unix-like operating systems - You love working in a smaller team where you can see the huge impact of your work - You are autonomous and enjoy managing your workload and deadlines Requirements - Optional/useful: Experience mentoring other developers and providing leadership on technical decisions - Optional/useful: Experience with AWS, particularly serverless architecture - Optional/useful: Ability to work independently, using your assessment of the technical landscape to work out where you will be most effective - Optional/useful: Ability to engage with multiple technical stakeholders and teams, to find common needs and themes Benefits - A competitive salary and stock options package - 25 days annual leave a year + public holidays - Private Medical Insurance via BUPA (medical history disregarded) - A wellbeing and lifestyle benefits plan through Medicash - 5% employer contributions pension matching - A budget for work-related training of £1,000 per financial year and an allowance of 4 training days - Cycle To Work scheme and Workplace Nursery benefit - Access to Spill - Mental Health Support platform - Enhanced Maternity + Paternity Pay - Regular socials and activities, online and in-person - Flexible start and finish times, fully remote working or hybrid depending on preferences Company Description We are proud to be an equal opportunities employer and welcome applications from all suitably qualified persons regardless of race, sex, ethnicity, disability, religion/belief, sexual orientation, gender identity or expression, nationality, age or social background. We would like to actively encourage applications from those who identify with less represented and minority groups. We do not filter applications by university background and encourage those who have taken alternative educational and career paths to apply.

• Build and maintain low-latency, real-time interfaces for controlling autonomous cars and robots• Architect robust React applications that integrate live video feeds, real-time maps, and interactive controls for navigation and remote assistance• Optimize for operator efficiency: keyboard workflows, high-res layouts, fast feedback loops• Collaborate with backend, robotics, and UX teams to shape APIs and flows for reliability under edge conditions• Ship fast, iterate often, and deliver responsive, intuitive tools that support autonomous vehicle operations