Full Stack Developer

Full Stack Developer – Contract

Location: Predominantly Remote / 1 day per week onsite in the Windsor/Surrey area

Contract: 30 billable days, 7.5 hours per day

Start: ASAP

About the Role

We are looking for an experienced Full Stack Developer to join a global pharmaceutical organisation on a short-term contract supporting a new digital project.

You will work alongside an existing developer, designers and internal stakeholders to develop and enhance a web-based platform supporting an existing AI system. The focus of the role is application development and integration rather than AI or machine-learning model development.

The primary technology stack is React, TypeScript and PostgreSQL. You will contribute across the front end, back end, database, integrations, testing and deployment, while translating approved UI/UX designs into robust, production-ready functionality.

Key Responsibilities

• Build and enhance an existing web-based platform using React and TypeScript.
• Translate approved UI/UX designs into responsive, accessible and maintainable components.
• Work across front-end, back-end, API and database layers.
• Work with PostgreSQL, including schema changes, queries, relational data modelling, performance and data integrity.
• Build, consume and integrate REST APIs and web services.
• Integrate the platform with an existing AI system and other internal or external services.
• Collaborate with the existing developer to understand the prototype, architecture, codebase and development standards.
• Work closely with designers and stakeholders to clarify requirements and accurately deliver approved designs.
• Test, debug and support applications across development and production environments.
• Create and maintain technical documentation covering architecture, code, data flows, deployment and support procedures.
• Support additional website development, maintenance, bug fixes and digital projects where required.

Essential Experience

• Strong commercial experience with React and TypeScript.
• Proven full-stack development experience across front-end, back-end, APIs and databases.
• Strong practical experience with PostgreSQL, including relational data modelling and query development.
• Experience designing, building, integrating and consuming REST APIs or comparable web services.
• Experience implementing responsive interfaces from approved designs, prototypes or specifications.
• Strong knowledge of HTML, CSS and JavaScript.
• Experience with Git, branching, pull requests and code review.
• Experience testing, debugging and supporting web applications.
• Ability to communicate effectively with developers, designers and non-technical stakeholders.
• Strong organisation, documentation, problem-solving and prioritisation skills.

Desirable Experience

• Experience integrating web platforms with AI, machine learning, image analysis or other data-driven services.
• Experience within pharmaceutical, healthcare, scientific, regulated or compliance-led environments.
• Experience with component libraries, design systems and accessible web-development standards.
• Experience with automated front-end, back-end, integration or end-to-end testing.
• Familiarity with CI/CD pipelines, environment configuration and release management.
• Experience with performance optimisation, monitoring, logging and production support.