At a Glance
- Tasks: Develop secure, scalable Python applications for mission-critical programmes.
- Company: Join CGI, a top-rated employer known for its inclusive and innovative culture.
- Benefits: Competitive salary, excellent pension, private healthcare, and a share scheme.
- Other info: Opportunities for continuous learning and career growth in a friendly community.
- Why this job: Make a real impact while solving complex engineering problems in a supportive environment.
- Qualifications: 5+ years of Python development experience and strong team collaboration skills.
The predicted salary is between 50000 - 60000 £ per year.
At CGI, you'll help deliver secure, high-impact solutions that enable government agencies to tackle some of their most complex and mission-critical challenges.
As a Python Software Engineer, you'll work with modern technologies to build secure, scalable and reliable systems that drive real-world outcomes.
You'll collaborate with talented colleagues, contribute innovative ideas, and take ownership of technical solutions in an environment that values continuous learning, creativity and professional growth.
If you're passionate about solving complex engineering problems and want to make a meaningful impact while developing your career, CGI offers the opportunity to do just that.
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 is required on a secure site.
Candidate Profile
In this role, you will develop secure, scalable Python applications that support mission-critical programmes within CGI's Space, Defence and Intelligence business.
Working as part of a collaborative, cross-functional engineering team, you will design, build, test and enhance software solutions using modern development practices, while contributing ideas that help solve complex technical challenges.
You'll take ownership of your work, share your expertise by mentoring colleagues, and play a key role in delivering high‑quality solutions that make a tangible impact for our clients.
You'll also contribute to the continuous improvement of engineering standards, helping to evolve development processes, adopt new technologies and maintain a strong focus on quality, security and innovation throughout the software lifecycle.
Key Responsibilities
- Develop & Deliver secure, scalable Python software using modern engineering practices.
- Design & Document technical solutions and software components.
- Build & Maintain data processing pipelines for complex applications.
- Test & Assure quality through unit, integration and end-to-end testing.
- Collaborate & Mentor within cross-functional Agile delivery teams.
- Optimise & Improve development processes using Dev Ops and CI/CD practices.
- Innovate & Solve complex technical challenges with creative engineering approaches.
- Support & Enhance cloud-based and virtualised environments where appropriate.
- Required Qualifications To Be Successful In This Role
You’ll be an experienced Python Software Engineer with a passion for developing high‑quality software and solving challenging technical problems.
You will be comfortable working within collaborative delivery teams, have strong communication skills, and enjoy continuously learning new technologies.
Experience across modern software engineering, testing and cloud-based environments will enable you to succeed in this role.
Essential Qualifications
- You should have at least five years' experience developing software using Python, including object-oriented and functional programming.
- Strong experience working within cross‑functional software development teams.
- Proven ability to mentor and support junior engineers.
- Experience with unit, integration and end‑to‑end testing, with a quality-first mindset.
- Experience producing technical designs and documentation.
- Experience developing or maintaining data processing pipelines.
- Working knowledge of Dev Ops practices and cloud or virtualisation platforms.
- Strong interpersonal and stakeholder communication skills.
- Demonstrable enthusiasm for learning new technologies and driving innovation.
Desirable
- Experience with AWS.
- Experience using Elasticsearch and Kibana.
- Containerisation experience with Docker, Kubernetes and/or Open Shift.
- Knowledge of security technologies and protocols, including PKI and TLS.
- #J-18808-Ljbffr
Python Developers in London employer: Free-Work UK
Flotek Group is an exceptional employer, offering a dynamic work environment in Bridgend, St Asaph, or Plymouth, where employees are at the heart of our values-led business. With a focus on professional growth, we provide ample opportunities for learning and development within one of the UK's fastest-growing Managed Service Providers, alongside competitive benefits such as a staff share equity scheme and increasing holiday entitlement. Join us to be part of a passionate team dedicated to delivering world-class IT solutions while enjoying a supportive and collaborative culture.
StudySmarter Expert Advice🤫
We think this is how you could land Python Developers in London
✨Join Local Tech Meetups
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✨Contribute to Open Source Projects
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We think you need these skills to ace Python Developers in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Free-Work UK.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Free-Work UK and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Free-Work UK
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Free-Work UK uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
