Work in a small, growing team where you’ll contribute both to early design and hands-on delivery
Help shape and build the experiences that deepen participant understanding and motivation, making thoughtful decisions about what to develop, when to reuse, and how to optimise the journeys people already see
Design and implement systems that encourage people to return, explore insights, share additional data, and take part in studies
As the work is still in its early stages, you’ll often move across the stack, from front-end features built with TypeScript and modern frameworks to backend and data-driven work in Python, depending on what the problem calls for
Learn from real behaviour and iterate quickly based on what works

Requirements

Experience building cloud-hosted consumer applications using open source technologies such as Python or Node
Knowledge of modern frontend development, including JavaScript/TypeScript with frameworks like React or Next.js, and experience building intuitive, user-focused interfaces
Experience working on backend systems – ideally using Python – for data movement, processing, and storage
Experience working on consumer-facing products where experimentation, rapid iteration, and learning from user behaviour are important
Prior experience with Azure (ideally), AWS or GCP
Knowledge of how to work with Infrastructure as Code, ideally Terraform
Knowledge of good data modelling and design patterns; knowledge of relational databases (e.g. PostgreSQL) and familiarity with other types of data store (blob, document, graph)
Good experience with modern, agile development practices like code review, TDD, CI/CD and pairing using tools like Git and GitHub
Experience of operationally managing software components once live, including observability, logging, metrics, error reporting, debugging and live incident management
Experience of working with sensitive personal data
Experience working in cross-functional teams consisting of e.g. engineers, product, UX and non-technical stakeholders
Ability to communicate with stakeholders and audiences outside your own team
Experience working in small, growing organisations with a high degree of ambiguity, where flexibility is valued
Understanding of software quality principles and practices
Comfortable sharing knowledge and helping others
Comfortable taking part in technical discussions

Benefits

Competitive base salary from £60,000
Generous Pension Scheme – We invest in your future with employer contributions of up to 12%
30 Days Holiday pro rata + Bank Holidays – Enjoy a generous holiday allowance with the flexibility to take bank holidays when it suits you
Enhanced Parental Leave – Supporting you during life’s biggest moments
Cycle to Work Scheme – Save 25-39% on a new bike and accessories through salary sacrifice
Home & Tech Savings – Get up to 8% off on IKEA and Currys products, spreading the cost over 12 months through salary sacrifice
£1,000 Employee Referral Bonus – Know someone amazing? Get rewarded for bringing them on board!
Wellbeing Support – Access to Mental Health First Aiders, plus 24/7 online GP services and an Employee Assistance Programme for you and your family
A Great Place to Work – We have a lovely Central London office in Holborn, and offer flexible and remote working arrangements

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

TypeScriptPythonJavaScriptReactNext.jsNodeAzureAWSGCPTerraform

Soft Skills

communicationflexibilitycollaborationproblem-solvingiterationknowledge sharingstakeholder engagementadaptabilityteamworkuser-focused design