Senior Platform Engineer

Project Freelance; United Kingdom; Hybrid; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Private healthcare

Share scheme (3.5% + 3.5% matching)

Excellent pension

Job summary

CGI in the United Kingdom is seeking a Senior Platform Engineer to strengthen reliability, performance and security of critical platforms. You will own complex infrastructure challenges, automate intelligently and shape DevSecOps practices to accelerate delivery.

The role is hybrid with an out-of-hours on-call rota; you will work with engineering, development and security professionals in a collaborative environment that supports your professional growth and long-term career opportunities.

Job description

At CGI, we’re helping organisations transform the way they develop, deploy and manage critical applications through secure, scalable and innovative technology solutions. As a Senior Platform Engineer, you’ll play a key role in strengthening the reliability, performance and security of the platforms that underpin essential digital services. You’ll take ownership of complex infrastructure challenges, introduce intelligent automation and shape modern DevSecOps practices that accelerate delivery and improve operational resilience. Working alongside talented engineering, development and security professionals, you’ll have the freedom to innovate, influence technical decisions and continuously improve our platforms, while benefiting from a collaborative environment that supports your professional development and long-term career growth.

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 but the role includes participation in an out-of-hours on-call support rota to help maintain platform availability and service continuity.