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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Python Developer - **Company:** Responsibilitiestechnical - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Agile Methodology, C++ (Programming Language), Software Quality, Code Review, Computer Programming, Continuous Integration, Python (Programming Language), Software Engineering, Software Coding, Software Version Control, Programming Languages - **Published:** October 1, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/senior-python-developer/49536167 ## About the Role LogisticsEmployment type: PermanentJob DescriptionAs 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 ResponsibilitiesTechnical 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/RequirementsAt least 8+ years of professional software development experience with a minimum of 4 years of experience in Python as a core programming languageExperience in Financial Services/Highly regulated environment is highly beneficialProficiency in one additional programming language is preferred (e.g. C++, Java, etc.)A proven track record of delivering scalable, high-quality solutions in production environmentsExperience mentoring and guiding developers, with strong leadership skills in a technical capacityDeep understanding of software development principles, including version control, testing, continuous integration, and agile methodologiesAccountability: You take ownership of projects and tasks, drive them to completion, and deliver consistent, high-quality workStrong communication skills with the ability to engage with both technical and non-technical teams, ensuring alignment and smooth collaboration Company ValuesCollaborative: We listen, communicate, and work together to achieve shared goalsInnovative: We constantly seek new ways to push the boundaries and improve our solutionsSupportive: We lift each other up, creating an environment where everyone can grow and succeedFlexible: We adapt to the evolving needs of our team and clients, ensuring work-life balance and effective outcomesTrustworthy: We build trust through consistency, transparency, and delivering on our promisesCompany BenefitsBe part of a modern, inclusive, high-trust engineering cultureTake ownership and ship code that directly improves client outcomesWork with a smart, friendly team that values balance, growth, and supportPension 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 Programme28 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. #J-18808-Ljbffr ## Related Videos - [Are Code Reviews Worth It? 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