Senior JavaScript Software Engineer

Join us at Barclays as a Senior JavaScript Software Engineer, where you’ll design, develop, and enhance software solutions that deliver cutting-edge business and technology capabilities for our customers and colleagues. In this role, you’ll lead complex coding projects, mentor engineers, drive Dev Ops practices, and ensure the delivery of high-quality, modern software aligned with the latest standards.

To be successful as a Senior JavaScript Software Engineer, you should have experience with:

• Strong experience with JavaScript and React.
• Proven track record in Agile methodologies.
• Ability to develop and debug complex code, ensuring best practices and quality standards.

• Team Collaboration – Work effectively within cross‑functional teams to achieve shared goals.
• Effective Decision‑Making – Analyze options and make sound, timely decisions.
• Coaching and Mentoring – Guide and support colleagues to develop technical and professional skills.

You may be assessed on the key critical skills relevant for success in the role, such as risk and controls, change and transformation, business acumen, strategic thinking, and digital and technology, as well as job‑specific technical skills.

This role is based in Knutsford/Glasgow/Manchester.

To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues.

• Development and delivery of high‑quality software solutions by using industry‑aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimised for performance.
• Cross‑functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives.
• Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing.
• Stay informed of industry technology trends and innovations and actively contribute to the organisation’s technology communities to foster a culture of technical excellence and growth.
• Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions.
• Implementation of effective unit testing practices to ensure proper code design, readability, and reliability.

• To advise and influence decision making, contribute to policy development and take responsibility for operational effectiveness. Collaborate closely with other functions/ business divisions.
• Lead a team performing complex tasks, using well‑developed professional knowledge and skills to deliver on work that impacts the whole business function. Set objectives and coach employees in pursuit of those objectives, appraisal of performance relative to objectives and determination of reward outcomes.
• If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others.
• OR for an individual contributor, they will lead collaborative assignments and guide team members through structured assignments, identify the need for the inclusion of other areas of specialisation to complete assignments. They will identify new directions for assignments and/or projects, identifying a combination of cross‑functional methodologies or practices to meet required outcomes.
• Consult on complex issues; providing advice to People Leaders to support the resolution of escalated issues.
• Identify ways to mitigate risk and develop new policies/procedures in support of the control and governance agenda.
• Take ownership for managing risk and strengthening controls in relation to the work done.
• Perform work that is closely related to that of other areas, which requires understanding of how areas coordinate and…