Platform Engineer

At CGI, we deliver secure, scalable cloud platforms that support critical programmes across Space, Defence and Intelligence. As a Platform Engineer, you’ll help design, automate and optimise modern infrastructure environments using Kubernetes and Linux. You’ll take ownership of technical challenges, develop innovative automation solutions and collaborate with experienced teams to deliver resilient, high-performing platforms. Working on a secure programme in Belfast, you’ll have the opportunity to make a tangible impact while developing your expertise in cloud infrastructure and platform engineering.

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 role requires five days per week onsite in Belfast.