Senior Next.js Developer in Swansea

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About Scrumconnect Consulting

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Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful and innovative technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens.

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We are passionate about user-centred design, agile delivery, and building digital services that make a real difference. Our teams work at the forefront of innovation, helping organisations transform and deliver high-quality, scalable solutions that truly matter.

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Role Overview

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We are seeking a talented and experienced Senior Next.js Developer at SFIA Level 4 to join our multidisciplinary agile teams and help deliver world-class digital services for UK government clients. In this role, you will lead the development of modern, accessible, and performant Front End applications using Next.js, working in structured and governed environments where quality, accessibility, and user experience are paramount.

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Role Details

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Location: Swansea

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Working Pattern: Hybrid - 3 days per week in office

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Contract Type: Permanent

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SFIA Level: 4 (Enable)

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Key Responsibilities

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• Design, develop and maintain high-quality, accessible Front End applications using Next.js and React
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• Architect scalable, performant solutions aligned with the GOV.UK Design System and GDS Service Standard
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• Lead development across all project phases: Discovery, Alpha, Beta, and Live
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• Ensure all Front End code meets WCAG 2.2 AA accessibility standards
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• Build and maintain CI/CD pipelines and implement DevOps best practices
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• Collaborate closely with UX/Interaction Designers, Content Designers, and User Researchers in agile teams
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• Integrate with GOV.UK platforms including Pay, Notify, and One Login
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• Conduct code reviews, enforce best practices, and mentor junior developers
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• Contribute to technical documentation, architecture decisions, and sprint ceremonies
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• Ensure the security, scalability, and resilience of all applications
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Required Skills & Experience

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Core Technical Skills

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• Strong hands-on experience with Next.js (App Router and Pages Router)
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• Proficient in React, TypeScript, and modern JavaScript (ES6+)
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• Experience building Server Side rendered (SSR) and statically generated (SSG) applications
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• Hands-on with RESTful APIs and GraphQL integrations
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• Familiarity with Node.js for Server Side logic and API routes
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• Experience with CSS-in-JS, Tailwind CSS, or CSS Modules
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• Cloud platforms: AWS, Azure, or GCP
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• Containerisation: Docker and Kubernetes
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• CI/CD tools: GitHub Actions, Jenkins, or GitLab CI
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GDS-Specific Experience

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• Proven experience delivering projects aligned with UK GDS standards
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• Hands-on experience with the GOV.UK Design System
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• Strong understanding of the GDS Service Manual and Technology Code of Practice
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• Experience preparing for and passing GDS service assessments
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• Familiarity with public sector procurement and delivery environments
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Desirable Experience

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• Contributions to the GOV.UK Design System or open-source projects
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• Experience with performance monitoring and web vitals optimisation
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• Familiarity with micro-Front End architectures
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• Experience with testing frameworks such as Jest, Cypress, or Playwright
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• Background in delivering digital services within UK central government or the wider public sector
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SFIA Level 4 - What This Means

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At SFIA Level 4 (Enable), you will work autonomously on complex and diverse tasks, making decisions that influence the success of projects and contributing meaningfully to team outcomes. You will support and guide junior colleagues, delegate tasks where appropriate, and engage confidently with stakeholders, suppliers, and partners.

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Soft Skills

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• Strong communication skills with the ability to explain technical concepts clearly to non-technical stakeholders
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• Collaborative, team-first mindset with experience working in fast-paced agile environments
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• Problem-solving approach with strong attention to detail
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• Passion for building user-centred, accessible digital services
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Diversity & Inclusion

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At Scrumconnect Consulting, we believe that diversity drives innovation and better outcomes. We are committed to fostering an inclusive environment where every individual is valued, respected, and supported.

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We welcome applications from candidates of all backgrounds and actively encourage individuals from underrepresented groups, including women, people with disabilities, and diverse communities, as well as those seeking flexible working arrangements.

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As a Disability Confident Level 1 employer, we are committed to providing reasonable adjustments throughout the recruitment process and during employment to ensure equal opportunities for all.

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How to Apply

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Please submit your CV to our Talent Acquisition team. Shortlisted candidates will be invited to interview. If you have any questions about the role or the process, please don't hesitate to get in touch - we're always happy to help.