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Senior Python Developer

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Fundment Limited
Part Time, Seasonal/Temporary position
Listed on 2026-09-12
Job specializations:
  • Software Development
    Backend Developer, Software Engineer, Senior Developer
Salary/Wage Range or Industry Benchmark: 90000 - 120000 GBP Yearly GBP 90000.00 120000.00 YEAR
Job Description & How to Apply Below

Logistics

Employment type: Permanent

Job Description

As a Senior Python Engineer, you will play a critical role in designing, developing, and optimising our innovative solutions. You’ll be responsible for driving the technical execution of projects, mentoring other developers, and ensuring our platform remains scalable, reliable, and secure. This role requires a blend of hands‑on coding, technical leadership, and collaboration with non-technical teams such as operations, investments, client services, sales, and finance.

Key Responsibilities

Technical Leadership: Take ownership of key components and features within the platform, ensuring their scalability, security, and performance. Provide technical guidance and mentorship to junior and mid‑level developers, helping them grow their technical skills and understanding of system architecture.

Collaboration with Non-Technical Teams: Work closely with teams such as operations, investments, client services, sales, and finance to understand business requirements and translate them into technical solutions. Ensure that technical implementations align with both business goals and technical standards.

Code Quality and Best Practices: Ensure high standards of code quality through code reviews, testing, and adherence to best practices. Continuously work to improve the efficiency, scalability, and security of our platform.

Problem Solving and Optimisation: Lead the investigation and resolution of production issues and performance bottlenecks. Proactively identify areas for optimisation and implement improvements that enhance the user experience and system reliability.

Project Execution: Take responsibility for delivering high‑quality solutions on time, ensuring that development and release processes meet industry best practices. Work collaboratively with the team to maintain a clear and consistent development workflow.

Documentation and Knowledge Sharing: Contribute to the documentation of features, code, and processes to ensure that knowledge is easily accessible and maintained within the team. Share technical insights and solutions to promote a learning culture.

Continuous Learning: Stay current with the latest technologies and trends in software development. Proactively seek out opportunities for personal and team development to improve technical expertise and maintain Fundment’s competitive edge.

Person Specification/Requirements

At least 8+ years of professional software development experience with a minimum of 4 years of experience in Python as a core programming language

Experience in Financial Services/Highly regulated environment is highly beneficial

Proficiency in one additional programming language is preferred (e.g. C++, Java, etc.)

A proven track record of delivering scalable, high-quality solutions in production environments

Experience mentoring and guiding developers, with strong leadership skills in a technical capacity

Deep understanding of software development principles, including version control, testing, continuous integration, and agile methodologies

Accountability:
You take ownership of projects and tasks, drive them to completion, and deliver consistent, high-quality work

Strong communication skills with the ability to engage with both technical and non-technical teams, ensuring alignment and smooth collaboration

Company Values

Collaborative: We listen, communicate, and work together to achieve shared goals

Innovative: We constantly seek new ways to push the boundaries and improve our solutions

Supportive: We lift each other up, creating an environment where everyone can grow and succeed

Flexible: We adapt to the evolving needs of our team and clients, ensuring work‑life balance and effective outcomes

Trustworthy: We build trust through…

Position Requirements
10+ Years work experience
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