Full Stack Software Engineer
£44,000 - 54,000 (+ Benefits)
Reports to: Lead Software Engineer
Department: Chief Operating Office
Contract: Permanent
Hours: Full time 35 hours per week
Location: Stratford, London. Office-based with high flexibility (1‑2 days per week in the office)
Visa sponsorship: You must be eligible to work in the UK to apply for this vacancy. Cancer Research UK is not able to offer visa sponsorship.
Closing dates: 29 June 2026 23:55 (Internal & External)
Recruitment process: Telephone interview followed by a technical exercise and one competency‑based interview
We are looking for a Full Stack Software Engineer with experience in JavaScript/TypeScript who can take our digital products to the next level by partnering with our product teams to develop software packages, high‑quality code, best practices, and deliver technical solutions as part of our ambitious Engineering Strategy.
As part of a portfolio rotating across a range of change initiatives and products used by Cancer Research UK's Scientific Research & Innovation portfolio, you will collaborate with Engineers, Product Managers, Testers, Agile Coaches, Architects and Business Analysts to convert business challenges into technical solutions while continually improving the accessibility, availability, performance, and security of our R&I products.
What will I be doing?
- Developing software packages and solutions within our Scientific Research & Innovation portfolio.
- Applying lean and Agile principles to develop high‑quality code with minimal bugs, adhering to Cancer Research UK standards, and ensuring supportability.
- Working independently or with Solution Architects to design new solutions and maintain, implement, and improve SaaS solutions in line with the Software Engineering strategy.
- Autonomously delivering backlog items for an existing product.
- Collaborating with the R&I product team (Product Managers, Service Designers, UX Designers, Business Analysts, etc.) to identify user needs, discuss capabilities and iteratively design solutions.
- Contributing to the Software Engineering capability team to share best practices, develop standards, patterns, automation & tools, and reduce technical debt and operational risks.
- Applying Site Reliability Engineering principles to track and improve the availability, performance, and security of our R&I products while supporting the resolution of incidents impacting these products.
What skills will I need?
- Experienced Software Engineer with a proven ability to write clean, readable, and properly tested code based on tried and tested design patterns.
- Demonstrable knowledge of JavaScript / TypeScript with an ability and willingness to learn new languages, frameworks, and tools.
- Some experience building modern user interfaces and single‑page applications (preferably using React and Next.js).
- Some experience developing REST APIs and other back‑end components (preferably using Node.js).
- Knowledge of Jest or other modern testing libraries.
- Some experience with cloud‑native architecture and AWS services (including various SQL and NoSQL databases).
- Ran critical services in production and designed highly available, scalable, and secure solutions.
- Awareness of accessibility standards and guidelines.
- Collaborative with an ability to communicate with technical and non‑technical business colleagues.
What will I gain?
We create a working environment that supports your wellbeing and provide a generous benefits package, a wide range of career and personal development opportunities and high‑quality tools. Our policies and processes enable you to improve your work‑life balance, take positive steps in your career and achieve your personal wellbeing goals.
You can explore our benefits by visiting our careers web page.
