Senior Software Engineer I (JavaScript)

Salary: £65,000 - 105,000 per year

Requirements:

• We require strong knowledge of HTML, CSS, and JavaScript.
• We require experience building modern web applications using React.
• We require experience working with Node.js, Express, or related backend services.
• We require experience working with RESTful APIs.
• We require familiarity with agile development practices such as Test-Driven Development, Pair Programming, Continuous Integration, automated testing, and deployment.
• We require strong collaboration and communication skills with a positive and constructive approach to teamwork.
• We are particularly interested in engineers who actively use AI tools as part of a software engineering workflow.
• We value experience using AI coding assistants such as GitHub Copilot, Claude Code, Cursor, Codex, or similar tools.
• We require comfort working in an AI-augmented development environment.
• We require the ability to break work into well-scoped tasks that AI tools can assist with effectively.
• We value curiosity about how AI can improve developer productivity, experimentation, and software quality.
• We value enthusiasm for exploring and sharing effective ways of using AI in software engineering.

Responsibilities:

• We work as part of a highly collaborative, cross-functional, agile product development team to develop modern responsive web applications.
• We implement intuitive, interactive, and visually appealing user interfaces using React.
• We work closely with UX/UI designers to translate design concepts into functional web applications.
• We ensure applications are optimized for performance, accessibility, and responsiveness across devices and browsers.
• We use AI-assisted development tools to help design, implement, refactor, and debug software.
• We critically evaluate, adapt, and validate AI-generated output to ensure it meets engineering and quality standards.
• We help the team evolve effective AI-supported development workflows.
• We write well-tested, documented, and peer-reviewed code.
• We work closely with Product Managers and QA to ensure software meets user and business requirements.
• We contribute to engineering best practices, including testing, CI/CD, code review, and continuous improvement.
• We support the growth of the London engineering team through collaboration, knowledge sharing, and participation in recruitment.

Technologies:

• AI
• Backend
• CI/CD
• Claude Code
• Copilot
• CSS
• Cursor
• GitHub
• Support
• JavaScript
• React
• Web
• UX UI Design
• NodeJS
• Frontend
• Java

More:

We are ScienceDirect, the worlds leading collection of science information on the web and Elseviers flagship product. We are building modern web applications used by millions of researchers worldwide and fostering a culture of technical excellence, collaboration, and modern engineering practices. We support AI-assisted development workflows and encourage experimentation with AI tools to improve software quality and productivity. We offer a healthy work/life balance, flexible working hours, wellbeing initiatives, shared parental leave, study assistance, sabbaticals, comprehensive pension, home, office, or commuting allowance, generous vacation entitlement, family care leave, a personal choice budget, internal communities and networks, employee discounts, a recruitment introduction reward, and an Employee Assistance Program. This full-time role is based in London Wall, and we are committed to a fair and accessible hiring process.

last updated 36 week of 2026