Senior Python Engineer & Tech Lead — Cloud & Security

CGI Group Inc.; Leatherhead; On-site; GBP 65,000 - 90,000; Full time

Job summary

CGI Group Inc. is seeking an experienced Python Software Engineer to join its Space, Defence and Intelligence unit in the UK. You will apply Python for OOP and functional programming, lead development efforts, and drive high‑quality, scalable solutions for government clients.

The role covers design and documentation, data processing pipelines, and collaboration across DevOps and cloud platforms. You’ll mentor junior engineers, communicate with stakeholders, and continuously learn new

Qualifications

• At least 7 years of Python experience including OOP and FP.
• Proven experience leading software teams and mentoring juniors.
• Experience with unit, integration, and end-to-end testing.
• Ability to create designs and documentation.
• Experience working with data processing pipelines.
• Knowledge of DevOps and cloud/virtualisation platforms.
• Strong willingness to learn new technologies and innovate.
• Excellent interpersonal skills.

Skills

Python (OOP/FP)

Team leadership

Testing (unit/integration/end-to-end)

Design & documentation

Data processing pipelines

DevOps & Cloud

Lifelong learning

Interpersonal skills

Tools

AWS

Docker

Kubernetes

OpenShift

Elastic

Kibana

PKI/TLS security

Job description

CGI Group Inc. is seeking an experienced Python Software Engineer to join its Space, Defence and Intelligence unit in the UK. You will apply Python for OOP and functional programming, lead development efforts, and drive high‑quality, scalable solutions for government clients.

The role covers design and documentation, data processing pipelines, and collaboration across DevOps and cloud platforms. You’ll mentor junior engineers, communicate with stakeholders, and continuously learn new