Python Developer- Leatherhead

FDM is a global business and technology consultancy seeking a Python Developer to work for our client within the Public Sector.This is initially a 6 month contract with very good prospects to extend and will be a hybrid role that will be based in Leatherhead (minimum 1 day per week on-site).

Our client is seeking a self-motivated Python Developer to support the development of microservices for processing complex scientific and engineering data in a secure, high-performance environment. The role sits within a growing Secure Space Systems function, working on projects related to Space-based Intelligence, Surveillance and Reconnaissance (ISR). Work typically starts in prototyping and evolves into Agile delivery using frameworks such as Scrum, SAFe and DevSecOps.

Responsibilities:

• Develop and maintain Python-based microservices for processing complex datasets
• Design and implement RESTful APIs using OpenAPI and JSON standards
• Build and execute automated tests to ensure performance and reliability
• Work within Agile delivery teams using frameworks such as Scrum, SAFe and DevSecOps
• Collaborate with cross-functional teams to solve evolving technical challenges

• Strong experience developing and testing Python microservices using Docker
• Hands-on experience building RESTful APIs with OpenAPI and JSON
• Experience working in Agile environments with a delivery-focused mindset
• Knowledge of PostgreSQL and data-driven application development
• Strong communication skills with the ability to adapt to changing requirements

Minimum number of 5+ years’ experience in:

Python development and microservices architecture

Additional requirements:

• UK National with active SC Clearance
• No unrestricted travel permits (e.g. OCI, NICOP)
• Willingness to work on-site in Leatherhead at least 1 day per week

Desirable skills:

• Experience with GIS technologies
• Experience with workflow tools such as NiFi
• Experience with orchestration tools such as Temporal

FDM is an award-winning global leader in tech and business talent solutions, backed by more than 35 years of industry experience. We have centres across Europe, North America, and Asia-Pacific, and a global workforce of over 2500 employees. FDM has shown exponential growth throughout the years, firmly establishing itself as an award-winning employer, currently listed on the FTSE4Good Index and as a 2026 Financial Times UK ‘Best Employer’.

Diversity and Inclusion

FDM Group is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, sexual orientation, national origin, age, disability, veteran status or any other status protected by federal, provincial or local laws.

Why join us

• Career coaching, mentoring and access to upskilling throughout your entire FDM career
• Assignments with global companies and opportunities to work abroad
• Opportunity to re-skill and up-skill into new areas, develop non-linear career paths and build a skillset within your field
• Annual leave and work-place pension