Senior Python Engineer – Contract

Searchability; Greater London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading consultancy firm is seeking a Senior Python Engineer for a 12-month contract in Milton Keynes, offering a day rate of £500–£750. The role involves developing secure, scalable applications in a government setting, with active Enhanced DV clearance required. Applicants must be experienced in Python and related technologies. Opportunities to work on mission-critical projects are provided.

Benefits

Excellent day rate

Strong extension potential

Opportunity to work on high-profile programmes

Exposure to cutting-edge technology

Qualifications

• Active Enhanced DV clearance is mandatory.
• Ability to work full-time onsite in Milton Keynes.

Responsibilities

• Develop secure, scalable applications and systems.
• Design, code, test, and support Python-based solutions.
• Maintain coding standards, security protocols, and performance measures.

Skills

Strong hands-on experience with Python development

Proficient in working with JSON and related data formats

Ability to design, build, and maintain APIs and integrations

Strong understanding of secure coding practices

Job description

Overview

Senior Python Engineer – Contract

12-month initial contract, £500–£750/day (depending on experience). Full-time onsite in Milton Keynes. Enhanced DV clearance (active) required.

ABOUT THE CLIENT

Our client is a leading global consultancy delivering complex technology programmes for secure government and defence customers. With a long-standing reputation for innovation and technical excellence, they work on mission-critical projects where reliability, security and performance are paramount. Due to continued demand in this space, they are seeking a Senior or Lead Python Engineer to join their delivery team on a long-term contract.

BENEFITS

• Excellent day rate £500–£750/day
• 12-month contract with strong extension potential
• Opportunity to work on high-profile, mission-critical programmes
• Secure project environment with exposure to cutting-edge technology

The Senior Python Engineer Role

As Senior Python Engineer, you will play a key role in developing secure, scalable applications and systems in a complex environment. You will be responsible for designing, coding, testing and supporting Python-based solutions, with a strong focus on JSON-based data handling and integrations. Working in a secure government setting, you will ensure coding standards, security protocols and performance measures are maintained throughout.

Senior Python Engineer Essential Skills

• Strong hands-on experience with Python development
• Proficient in working with JSON and related data formats
• Ability to design, build, and maintain APIs and integrations
• Strong understanding of secure coding practices
• Ability to work full-time onsite in Milton Keynes
• Active Enhanced DV clearance (mandatory)

To Be Considered

Please either apply through this advert or email me directly at [e-mail]. For further information please call me on 0203 854 0120 / 07889 589 648. By applying for this role, you give express consent for us to process and submit (subject to required skills) your application to our client in conjunction with this vacancy only.

Key Skills

Senior Python Engineer, Python Developer, JSON, API Development, Secure Coding, Enhanced DV, Milton Keynes, NSD