Senior Software Engineer, Front End

ONI

Senior Software Engineer developing high-performance software to automate microscopy for scientific discovery. Collaborating with teams to deliver exceptional user experiences and solve complex technical problems.

Posted 7/14/2026full-timeOxford • 🇬🇧 United KingdomSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and developing scalable frontend applications using React, TypeScript, and JavaScript, while ensuring high standards for code quality and performance. Proficient in collaborating with cross-functional teams and mentoring junior engineers to foster a culture of best practices in software development.

Highest-signal resume keywords

React DevelopmentTypeScript ProgrammingJavaScript ExpertiseCI/CD Pipeline ContributionRESTful API Integration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Frontend DevelopmentAsynchronous ProgrammingState Management (Redux, Zustand, React Context)Unit TestingIntegration TestingEnd-to-End Testing

Soft Skills

Analytical SkillsProblem-Solving SkillsMentorship

Tools & Technologies

GitPostgresMongoDBMySQL

Certifications & Qualifications

Bachelor’s Degree in Computer Science

Industry Keywords

Agile Software DevelopmentFrontend ArchitecturePerformance OptimizationAccessibility

Tech Stack

Tools & technologies

JavaScriptMongoDBMySQLReactReduxTypeScript

About the role

Key responsibilities & impact

Design, develop, test, and maintain modern applications using React, TypeScript, and JavaScript.
Build reusable, maintainable UI components and scalable frontend architectures.
Contribute to architecture for building end-to-end systems optimized for speed and scale.
Contribute to CI/CD pipelines and frontend automation.
Champion engineering best practices including testing, accessibility, performance optimization, and maintainable code.
Participate in all aspects of agile software development, including design, implementation, and deployment.
Ensure application performance, uptime, and scale, and maintain high standards for code quality and application design.
Provide mentorship and guidance to junior engineers.
Collaborate closely with Product Managers, UX designers, scientists, and backend engineers to translate user needs into high-quality software.

Requirements

What you’ll need

Bachelor’s degree in Computer Science, or related field.
Minimum of 5 years experience as front end developer.
Demonstrated expertise and experience in building large scale applications.
Experience in designing and integrating RESTful APIs and asynchronous programming.
Excellent programming skills in the following: React, JavaScript, Typescript.
Experience with state management solutions (Redux, Zustand, React Context or similar).
Familiarity with database technology such as Postgress/MongoDB/MySQL.
Experience writing unit, integration, and end-to-end tests.
Familiarity with Git-based development workflows and CI/CD.
Excellent analytical and problem-solving skills with focus on clean code.

Benefits

Comp & perks

Competitive Compensation We recognise and reward your talent. Enjoy a competitive salary that reflects your expertise and contributions, ensuring your hard work is recognized.
Time Off That Counts 28 days of annual leave plus bank holidays and 4 dedicated wellbeing days!
Onsite Gym Facilities Stay active and energized with our convenient onsite gym, promoting your overall health.
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.