Front End Engineer

At ONI, we are driven by a profound mission: to propel scientific discovery and combat diseases by granting everyone the ability to visualize, comprehend, and share the intricate microscopic details of life. Our revolutionary Nanoimager stands at the forefront of advancing cellular studies on a molecular level, making substantial contributions to the evolution of scientific knowledge.

We dedicate ourselves to broadening the realms of human potential, and we are actively seeking an Software Test Engineer to join our team located in Oxford. We believe in the power of relentless curiosity and the pursuit of excellence, and we invite you to join us in shaping the future of scientific exploration and healthcare breakthroughs.

In this role you will build software solutions for the automation of super-resolution microscopy, image analysis to enable non-expert scientists to gain rapid and actionable insights using super-resolution across academic research, drug development, and diagnostics.

Your Role at ONI:

• Build modern, responsive, and accessible user interfaces using React, TypeScript, and JavaScript
• Collaborate with cross-functional teams including designers, backend developers, and product managers to deliver elegant solutions
• Develop and maintain reusable components and UI patterns
• Implement and advocate for best practices in code quality, architecture, and testing
• Optimize performance and handle cross-browser compatibility issues
• Participate in code reviews, stand-ups, and agile planning sessions
• Contribute to the development and evolution of our internal design system or component library
• Participate in all aspects of agile software development, including design, implementation, and deployment.
• Effectively communicate and collaborate with interdisciplinary teams, including software engineering, product management, bioware, chemistry, and hardware ensuring seamless integration and alignment of goals across all departments

Essential skills and qualifications:

• Bachelor’s degree in Computer Science, or related field.
• 2–5 years of professional front-end development experience
• Proficiency in React and TypeScript (interfaces, generics, strict typing)
• Strong understanding of modern JavaScript (ES6+) and functional programming principles
• Experience with state management libraries such as Redux, Zustand, Recoil, or React Query
• Proficiency with HTML5, CSS3/SASS, and responsive design
• Familiarity with RESTful APIs, JSON, and client-server communication
• Solid understanding of testing tools (e.g., Jest, React Testing Library, Cypress)
• Experience using Git, CI/CD pipelines, and modern front-end build tools
• Excellent debugging and optimization skills

Desired skills and qualifications:

• Experience with GraphQL
• Familiarity with Next.js, Vite, or server-side rendering
• Experience with component libraries (e.g., Material UI, Tailwind CSS, shadcn/ui)
• Exposure to design tools like Figma or working with design tokens
• Experience of developing embedded software/hardware-software integrated solutions.
• Experience of developing microscopy/scientific software.
• Knowledge of GRPC framework or other IPC frameworks.

At ONI, we understand that a fulfilling career involves more than just challenging work - it's about enjoying a well-rounded experience. When you become a part of our team, you not only contribute to groundbreaking research but also enjoy a range of benefits designed to enhance your life both inside and outside the workplace.

As an equal opportunity employer, we prioritize fairness and respect, ensuring every team member thrives regardless of their background. But that's not all - our perks include:

Competitive Compensation We recognise and reward your talent. Enjoy a competitive salary that reflects your expertise and contributions, ensuring your hard work is recognized.

28 days of annual leave plus local bank holidays and 4 dedicated wellbeing days.

Private Healthcare and Dental Coverage: Your health matters to us. Access top-notch medical and dental services, ensuring your well-being is in good hands.

Inclusive Culture: Be a valued member of our diverse, inclusive family. Your unique perspective is celebrated here, fostering a culture of mutual respect and understanding.

Health Assured: Your mental health is essential. Access our comprehensive mental health support services for a balanced work-life experience.

People’s Pension: Secure your future with our pension scheme, investing in your financial well-being beyond the workplace.

Perks at Work: Enjoy exclusive discounts and deals through our perks at work program, adding value to your everyday life.

If you are driven by innovation, eager to make a significant impact in the realm of scientific and medical research, and possess the skills and passion we are looking for, we invite you to apply and be a part of our mission to improve our understanding of the details of life.