<div>Aker Systems was founded in 2017 by a team of experienced technology professionals who recognised an opportunity to provide highly secure enterprise data platforms to large organisations.  We build and operate ground-breaking, ultra-secure, high performance, cloud-based data infrastructure for the enterprise. Our proprietary technology solutions drive performance and reduce costs while helping our clients to improve the management and sharing of data across their organisations. In 2024, Aker Systems won the Breakthrough Culture Awards highlighting growth companies putting culture first. In 2020 Aker Systems was recognised as a ‘One to Watch’ on the Sunday Times Tech Track.  The Company was also recognised at the Thames Valley Tech Awards 2020; winning the Thames Valley Tech Company of the year, the Emerging Tech Company and High Growth Tech Business categories.  We encourage people of all different backgrounds and identities to apply.  We are committed to maintaining an inclusive, and supportive place for you to do your very best work.</div>We’re looking for a Senior Frontend UI Engineer to help us shape the future of intuitive, performant, and accessible user interfaces across our cloud-native product suite. In this role, youll take the lead on crafting scalable UI components, optimizing frontend architecture, and delivering pixel-perfect experiences. You’ll work collaboratively across design, product, and backend engineering, guiding technical decision-making and mentoring others along the way. This is a high-impact, hands-on role for someone who values clean design, robust engineering practices, and responsive, accessible interfaces—particularly in secure, regulated, and public-sector-ready software platforms.   Key Responsibilities <ul> <li>Design, build, and maintain high-performance UI components using React, Preact, and TypeScript</li> <li>Collaborate closely with designers and product managers to turn prototypes into production-ready experiences</li> <li>Drive best practices around accessibility, cross-browser compatibility, and responsive design</li> <li>Lead the evolution of our component libraries and design systems for reusability and consistency</li> <li>Partner with backend teams to define and consume RESTful APIs with Swagger/OpenAPI</li> <li>Optimize applications for performance (e.g. lazy loading, bundle splitting, SSR) and scalability</li> <li>Guide testing strategy using Jest, React Testing Library, Playwright, or Cypress</li> <li>Influence and improve our CI/CD pipelines, code quality standards, and tooling</li> <li>Participate in technical planning, code reviews, and mentoring across the frontend team</li> </ul>   Technologies You’ll Use Languages &amp; Frameworks: TypeScript, React, Preact, JavaScript (ES6+) Tooling: Vite, Webpack, Babel, ESLint, Prettier Styling: CSS Modules, Tailwind, Emotion, Styled Components Testing: Jest, React Testing Library, Playwright, Cypress Collaboration: Git, GitHub, Figma, Storybook, Jira, Confluence   What We’re Looking For Technical Expertise <ul> <li>5+ years of experience developing frontend applications in production environments</li> <li>Deep expertise with React/Preact and TypeScript, including SPA architecture and component abstraction</li> <li>Understanding of performance profiling, code-splitting, and bundle optimization</li> <li>Strong grasp of responsive UI/UX, semantic HTML, and web accessibility (WCAG) standards</li> <li>Familiarity with REST APIs, Swagger/OpenAPI specs, and full integration workflows</li> <li>Experience contributing to or maintaining design systems or UI libraries</li> </ul> Mindset &amp; Soft Skills <ul> <li>A craftsman’s approach to UI: attention to detail, empathy for users, and appreciation for visual hierarchy</li> <li>Clear, proactive communicator who thrives in collaborative, cross-functional environments</li> <li>A continuous learner who values mentoring, peer review, and shared ownership</li> <li>Comfortable operating in a fast-paced, agile product culture with an eye for simplicity and usability</li> <li>Passion for scalable design and performance in cloud-native, secure, and regulated software</li> </ul> Bonus Points <ul> <li>Experience working with Preact in constrained environments (e.g., embedded UIs)</li> <li>Familiarity with SSR frameworks like Next.js, Astro, or similar</li> <li>Contributions to open-source frontend projects or community tooling</li> <li>Background in SaaS, developer platforms, or public-sector-facing digital services</li> </ul><div>Aker Systems Attributes At Aker we work as a team; we are collaborative, hardworking, open, and delivery obsessed. There is no blame culture here: try things, and take responsibility for the outcomes. You are always part of the wider Aker. We help our colleagues and take pride in successfully achieving difficult tasks. We run towards problems and help to solve them. Communicate always, do so accurately and in a timely fashion. In return, we offer a competitive salary, 25 days holiday plus bank holidays, company paid medical insurance and life assurance, pension scheme, annual training allowance, wellbeing allowance, virtual GP, Employee Assistance plan and more. Equal Opportunities Aker Systems fosters a diverse environment that encourages openness in its communications and is committed to providing equal employment opportunity for all people regardless of race, religion, gender or sexual orientation, age, marital status, national origin, citizenship status, disability, veteran status or other personal characteristics. We embrace differences of opinion and diversity because they help challenge us and find new groundbreaking technical solutions.</div>

Aker Systems

Senior UI Engineer

Aker Systems

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