Developer jobs in London
Senior Front-End Developer
Urgently neededNewCGIUnited Kingdom- Company pension
5 hires made in past 30 days- You'll have the freedom to take ownership of technical solutions, explore creative approaches and influence how we deliver exceptional digital experiences.
- Capital One UKLondon EC1Y 8AF
- Annual leave
- Company pension
- On-site gym
- Private medical insurance
- As a Senior Manager in our Product team, you will lead the strategic vision, discovery, and execution of innovative digital products that drive core business…
- UNiDAYSHybrid work in London E1 6BT
- Employee assistance programme
- Company pension
- Private medical insurance
- Work from home
- Improve developer experience and measure it.
- A proven track record of building internal developer platforms or self-service tooling that engineers actually…
- Capital One UKHybrid work in London EC1Y 8AF
- Annual leave
- Company pension
- Private medical insurance
- In this role, you will design, develop, test, and maintain software products that automate core business processes.
- Docker, for our containerised applications.
- Capital One UKHybrid work in London EC1Y 8AF
- Annual leave
- Company pension
- Private medical insurance
- In this role, you will design, develop, test, and maintain software products that automate core business processes.
- Docker, for our containerised applications.
- Capital One UKHybrid work in London EC1Y 8AF
- Company pension
- Private medical insurance
- Cycle to work scheme
- White Collar Factory (95009), United Kingdom, London, London.
- At Capital One, you'll be part of a community of technical leaders who drive engineering…
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- CitiHybrid work in London
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- In this position, you will lead the design, development, and delivery of complex application systems that directly shape how technology integrates across…
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- MujiLondon
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- Drive adoption of developer platforms, automation capabilities and enterprise engineering standards across multiple teams.
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- Company pension
- Private medical insurance
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- You will lead a team or cross-functional squad in the delivery of complex and ambiguous projects that support a broader business outcome.
- Allegis Global Solutions RPO UK for GSKLondon N1C 4AG
- At GSK we see a world in which advanced applications of Machine Learning and AI will allow us to develop novel therapies to existing diseases and to quickly…
- Allegis Global Solutions RPO UK for GSKLondon N1C 4AG
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Job Post Details
Senior Front-End Developer
Job details
Full job description
At CGI, we build innovative digital solutions that help organisations transform, improve user experiences and achieve lasting business outcomes. As a Senior Front-End Developer, you'll play a key role in growing our Software Development team across the UK, delivering modern, scalable applications for clients across diverse industries. You'll have the freedom to take ownership of technical solutions, explore creative approaches and influence how we deliver exceptional digital experiences. Working alongside talented colleagues in a collaborative Agile environment, you'll contribute your expertise, mentor others and develop your career within a global organisation that values fresh thinking, continuous learning and meaningful impact.
CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go.
You will need to hold UK Security Clearance or be eligible to go through this clearance. This is a hybrid position.
Your future duties and responsibilities
As a senior member of our growing Software Development team, you'll help shape technical decisions, champion engineering best practices and support the development of colleagues through mentoring and knowledge sharing. You'll be encouraged to explore emerging technologies, influence delivery approaches and continuously enhance the quality of our solutions, supported by a collaborative team that values your expertise and professional growth.
Key responsibilities:
- Design & Develop: Build and maintain scalable, responsive web applications using React, Angular, TypeScript and modern JavaScript.
- Lead & Innovate: Take ownership of front-end technical deliverables, contribute to architectural decisions and introduce creative solutions to development challenges.
- Collaborate & Deliver: Work closely with UX/UI designers, back-end engineers and stakeholders to create seamless digital experiences.
- Integrate & Optimise: Connect front-end applications with RESTful APIs, GraphQL services and back-end systems, ensuring performance and reliability.
- Champion Quality: Promote clean code, automated testing, accessibility standards and continuous performance improvement.
- Mentor & Support: Share technical knowledge, provide constructive code reviews and coach colleagues to strengthen team capabilities.
- Adapt & Evolve: Explore additional frameworks, including Next.js, Vue.js and Solid, where appropriate to support client requirements.
- Drive Agile Delivery: Contribute to sprint planning, retrospectives and continuous improvement activities to deliver high-quality outcomes.
Required qualifications to be successful in this role
Essential skills and experience:
- Front-End Development: significant commercial experience developing modern web applications.
- React / Angular: Strong hands-on experience with React and/or Angular, alongside TypeScript and JavaScript (ES6+).
- API Integration: Proven experience integrating front-end applications with RESTful APIs and GraphQL services.
- Technical Leadership: Ability to take ownership of technical deliverables, influence development decisions and mentor colleagues.
- Software Engineering: Strong understanding of modern development principles, code quality, testing and performance optimisation.
- Back-End Integration: Knowledge of integrating applications with technologies such as .NET, Java, Python or Entity Framework.
- Agile Delivery: Experience working within Agile teams using tools such as Jira, Confluence and Git.
- Communication & Collaboration: Strong interpersonal skills and the ability to work effectively with cross-functional teams and stakeholders.
- Experience working within an IT consultancy or client-facing environment.
- Familiarity with cloud platforms including Azure, AWS or Google Cloud.
- Understanding of CI/CD pipelines and automated testing frameworks.
- Knowledge of UX/UI principles, responsive design and human-centred design methodologies.
- Awareness of Web Content Accessibility Guidelines (WCAG).
- Exposure to additional JavaScript frameworks such as Next.js, Vue.js or Solid.
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Together, as owners, let’s turn meaningful insights into action.
Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…
You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.
Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.
You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.
That same commitment to fairness extends to how we use technology. To support our recruitment team, AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals.
Come join our team—one of the largest IT and business consulting services firms in the world.