Senior Full Stack Developer – Java & Angular

Onyx-Conseil; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Pension plan

Private healthcare

Share scheme

Job summary

CGI is seeking a Senior Full Stack Developer to help shape digital services supporting access to justice across the UK. You’ll own reusable tech built to onboard faster, integrate consistently and operate reliably, using Java and Angular to tackle complex challenges.

This hybrid role works with a UK Government Department client, and requires UK Security Clearance or eligibility. CGI offers a competitive salary, generous pension, private healthcare, and a share scheme.

Qualifications

• Proven experience in Java and Angular to build scalable web applications.
• Strong background in full-stack development and modern UI/UX practices.
• Experience delivering accessible and secure services in complex environments.

Responsibilities

• Develop reusable services and components for UK public-sector applications.
• Collaborate with architects and delivery teams to ensure scalable, reliable platforms.
• Contribute to AI-assisted engineering initiatives and technical decisions.

Skills

Java

Angular

Full stack development

Secure coding

Job description

Join CGI as a Senior Full Stack Developer and help shape the digital services that support access to justice across the UK. Working with one of our key UK Government Department clients, you’ll take ownership of reusable technology that enables their services to onboard faster, integrate consistently and operate reliably. You’ll apply your Java and Angular expertise to solve complex engineering challenges, improve developer experiences and deliver secure, accessible services at scale. You’ll have the scope to introduce fresh ideas, explore AI-assisted engineering and influence technical decisions, while working alongside supportive CGI colleagues, architects, product specialists and delivery teams committed to engineering excellence and meaningful public-sector outcomes.

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.

Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance. This is a hybrid position.