Senior developer Work, Jobs in Harwell, Oxf (with Salaries)

Senior React Frontend Developer (Data)
Open Cosmos —Didcot
- Hybrid work
Senior Developer
Tetra Tech —Abingdon
- Azure
- Team management
- Mentoring
Senior Drupal Developer
Torpedo Group —Cassington
- Full-time
- Agile
Quick apply
Senior Online Developer (JavaScript)
Rebellion —Oxford
- Full-time
- Databases
- Bachelor's degree
- APIs
- Free parking
- Relocation assistance
Quick apply
Senior AI Developer
BCN Group —Reading
- Full-time
- Hybrid work
- Azure
- Software development
- AI
- Annual leave
- Employee assistance programme
Quick apply
Senior Software Engineer - Rock Physics Applications
Halliburton —Abingdon
- Full-time
- Computer Science
- Engineering
- Mentoring
Software Solutions Developer
Vodafone —Newbury
- Full-time
- AWS
- Analysis skills
- Software development
- Annual leave
Experienced/Senior Online Developer - Tech Team
Rebellion —Oxford
- Full-time
- Databases
- AWS
- Bachelor's degree
- Free parking
- Relocation assistance
Quick apply
Associate Software Engineer
Halliburton —Abingdon
- Full-time
- Computer Science
- Engineering
- No experience needed
Senior Engine Programmer
Rebellion —Oxford
- Full-time
- Hybrid work
- C++
- Free parking
- Relocation assistance
Quick apply
Senior Infrastructure Engineer
Dexory —Wallingford
- Mentoring
- Employee assistance programme
- Life insurance
Quick apply
Software Development Specialist
Vodafone —Newbury
- Full-time
- Computer Science
- Engineering
- Databases
- Annual leave
Senior LabVIEW Software Engineer (Real-Time & FPGA Systems)
Infinitesima —Abingdon
- £50,000 - £60,000 a year
- Hybrid work
- Software troubleshooting
- Mentoring
Quick apply
Experienced/Senior DevOps Engineer (AWS/Azure) - Tech Team
Rebellion —Oxford
- Full-time
- DevOps
- Bachelor's degree
- Free parking
- Relocation assistance
Quick apply
Senior C# Software Engineer – Semiconductor Metrology
Infinitesima —Abingdon
- £58,000 - £65,000 a year
- Hybrid work
- Computer Science
- Engineering
- Mentoring
Quick apply
Sr. MarkLogic Developer
Datavid —Reading
- Full-time
- Azure
- AWS
- Machine learning
- Paid training
- Annual leave
Senior Python Cloud Developer
Oxford Nanopore Technologies —Oxford
- Full-time
- AWS
- Agile
- Communication skills
Experienced/Senior Gameplay Programmer
Rebellion —Oxford
- Full-time
- Maths
- Bachelor's degree
- Free parking
- Relocation assistance
Quick apply
Mid-Level Java Developer
Halliburton —Abingdon
- Full-time
- Hybrid work
- Computer Science
- Software troubleshooting
- Engineering
Software Team Leader (C#)
Oxford Instruments plc —High Wycombe
- Hybrid work
- Team management
- Mentoring
- Software development
- Annual leave
- Employee assistance programme

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Senior React Frontend Developer (Data)

Open Cosmos -
Didcot

Apply Now

Job details

Qualifications

Performance tuning
UI development
React
D3.js
Git
UI design
CI/CD pipelines
Redux
Front-end development
Multidisciplinary collaboration
Unit testing
Data visualisation

Full job description

Aim high, go beyond!

At Open Cosmos we are solving the world’s biggest challenges from space, providing businesses, governments and researchers access to more readily available information than ever before - ready for the challenge? Then read on…

Working in our Data Division

At Open Cosmos, our Data division transforms satellite data into meaningful insights that drive real-world impact. The team delivers all data products generated by Open Cosmos and its partners, curates and develops DataCosmos (our geospatial data platform) and builds integrations that make satellite imagery easy to access and act on.

What will you be doing?

As a Senior React Fronted Developer in the Data Team you will lead the design and development of the interfaces that bring the DataCosmos platform to life — building performant, scalable UI components and data visualisations that make complex satellite data clear, accessible, and actionable for users across the platform.

You’ll be:

Designing, developing, and maintaining React-based user interfaces for data exploration, visualisation, and delivery
Building intuitive and performant UI components to handle large and complex datasets
Implementing reusable, scalable front-end architecture and component libraries
Translating data requirements into clear, accessible, and user-friendly interfaces
Working closely with data and backend engineers to integrate APIs and data services effectively
Optimising front-end performance when handling high-volume or real-time data
Writing and maintain unit and integration tests to ensure reliability and robustness
Participating in code reviews, ensuring adherence to front-end best practices and coding standards
Contributing to CI/CD pipelines for front-end deployment and release
Providing technical guidance on React architecture, state management, and data handling patterns
Acting as a subject matter expert for front-end development within data-driven applications
Identifying opportunities to simplify, optimise, and enhance data visualisation and UI performance
Ensuring front-end solutions support clarity, usability, and efficiency for both technical and non-technical users

What You’ll bring

Strong proficiency in React and TypeScript, with the ability to design scalable and maintainable front-end systems
Deep understanding of modern front-end development practices, including HTML, CSS, and component-based architecture
Strong capability in building data-driven interfaces and working with APIs and asynchronous data flows
Confident use of state management approaches like Redux, Zustand, Context, or similar
Familiarity with data visualisation libraries (e.g. D3.js, Recharts, or similar)
Strong understanding of front-end performance optimisation, particularly for large or complex datasets
Understanding of CI/CD concepts and cloud-native environments
Ability to structure, transform, and present complex data effectively in the front end
Strong understanding of version control systems (Git) and collaborative development practices
Clear and effective communication, with the ability to work across technical and non-technical teams
Ability to take ownership of front-end architecture, overall user experience and setting high standards for code quality, usability, and performance.
Proactivity in identifying and driving improvements across systems and workflows and providing guidance and support to other engineers, contributing to team capability
A collaborative and solution-oriented approach, working effectively across disciplines, operating in a fast-paced, scaling environment with evolving priorities

This role can be based in any of our locations.

To apply, you must have the legal right to work in our chosen location.

When applying, please submit your CV in English.

Why Open Cosmos?

Work at the cutting edge of space technology with customers around the globe
A mission-driven company making space accessible to help solve real-world challenges
A diverse, ambitious, and supportive team

Equal opportunity employer

At Open Cosmos, we are dedicated to fostering a workplace built on respect, dignity, and belonging. As an equal opportunity employer, we actively challenge bias to ensure every candidate and employee feels truly welcome. We celebrate diversity in all its forms and are committed to maintaining an inclusive environment where everyone has the opportunity to thrive.

Apply Now

Refine Your Search

senior developer jobs in harwell, oxf

Senior React Frontend Developer (Data)

Senior Developer

Senior Drupal Developer

Senior Online Developer (JavaScript)

Senior AI Developer

Senior Software Engineer - Rock Physics Applications

Software Solutions Developer

Experienced/Senior Online Developer - Tech Team

Associate Software Engineer

Senior Engine Programmer

Senior Infrastructure Engineer

Software Development Specialist

Senior LabVIEW Software Engineer (Real-Time & FPGA Systems)

Experienced/Senior DevOps Engineer (AWS/Azure) - Tech Team

Senior C# Software Engineer – Semiconductor Metrology

Sr. MarkLogic Developer

Senior Python Cloud Developer

Experienced/Senior Gameplay Programmer

Mid-Level Java Developer

Software Team Leader (C#)

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