Senior Python Developer

Fundment Limited; Greater London; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Pension 6% employer contribution

BUPA Private Health Insurance

Medicash Cashplan

Travel insurance

Life Assurance – 4 x base salary

Employee Assistance Programme

Hybrid working – 3 days in office

Job summary

Fundment Limited is seeking a Senior Python Engineer to design, develop, and optimise our innovative solutions. You will drive technical execution, mentor developers, and ensure our platform remains scalable, reliable, and secure. Role collaborates with operations, investments, client services, sales, and finance.

Requirements include 8+ years in software development with at least 4 years Python, plus experience mentoring. Hybrid work arrangement with 3 days in the Fitzrovia office in London.

Qualifications

• At least 8+ years of professional software development experience.
• Minimum 4 years of Python experience.
• Experience in Financial Services/regulatory environments beneficial.
• Proficiency in an additional programming language (e.g. C++, Java).
• Proven track record delivering scalable production systems.
• Experience mentoring and leading developers.
• Strong knowledge of version control, testing, CI, and Agile methodologies.

Responsibilities

• Technical Leadership: Own key platform components, ensuring scalability, security, and performance.
• Collaborate with non-technical teams to translate business needs into technical solutions.
• Maintain high code quality through reviews, testing, and best practices.
• Lead the investigation and resolution of production issues and performance bottlenecks.
• Deliver high-quality solutions on time with a clear development workflow.
• Contribute to documentation and knowledge sharing to promote learning.
• Stay updated with latest technologies to maintain competitive edge.

Skills

Python

Technical leadership

Mentoring

Communication

Agile

Tools

C++

Java

Job description

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 consistency, transparency, and delivering on our promises

Company Benefits

Be part of a modern, inclusive, high-trust engineering culture

Take ownership and ship code that directly improves client outcomes

Work with a smart, friendly team that values balance, growth, and support

Pension 6% employer contribution, minimum 2% employee contribution.

BUPA Private Health Insurance – fully paid for by the company, for you and your immediate family.

Medicash Cashplan – fully paid for by the company, for you and your immediate family.

Travel insurance – fully paid for by the company, for you and your immediate family.

Life Assurance – 4 x base salary.

Employee Assistance Programme

28 days annual leave plus bank holidays.

Paid compassionate leave – up to 5 days per year.

Enhanced paternity/maternity/adoption leave – 16 weeks at full pay after 12 months of service.

Jury service – 10 days at full pay.

Hybrid working arrangements – 3 days per week in the Fitzrovia office.