python developer jobs in Belfast

At CGI, we deliver innovative digital solutions that help clients modernise operations, improve efficiency, and unlock measurable business value. As a Full Stack Developer within our Intelligent Automation team, you will play a key role in designing and building scalable applications that support complex business and operational outcomes. Working across modern technologies and collaborative delivery teams, you’ll have the opportunity to influence solution design, contribute creative ideas, and take ownership of high-impact development work in an environment that values quality, continuous improvement, and professional 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.

Your future duties and responsibilities

Required qualifications to be successful in this role

To succeed in this role, you should have proven experience delivering production-ready full-stack applications and a strong understanding of modern software engineering principles. You will bring strong problem-solving skills, a collaborative mindset, and the ability to work effectively across both technical and non-technical teams. Experience working within secure or regulated environments and exposure to cloud and DevOps practices would be advantageous.

You should have demonstrable experience as a Full Stack Developer delivering enterprise-grade solutions

Strong commercial experience with Python

Experience of open source systems especially Kubernetes (K8s) & Helm Charts

Experience with Angular frameworks

Proven ability to develop back-end services and RESTful APIs

Strong proficiency in HTML, CSS, and JavaScript

Experience working with SQL and/or NoSQL databases

Strong understanding of application architecture and software design principles

Proficiency using version control tools such as Git

Experience working within Agile or DevOps delivery models

Awareness of security, resilience, and performance considerations in application development

Exposure to cloud platforms, ideally Azure, with AWS or GCP also beneficial

Strong communication skills and the ability to collaborate across multidisciplinary teams

#LI-SF2

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.

Come join our team—one of the largest IT and business consulting services firms in the world.