Senior Software Engineer

Fundment; Greater London; On-site; GBP 80,000 - 110,000; Full time

Job summary

A tech-driven financial services firm is looking for a Senior Engineer to lead the technical execution of projects. You will mentor junior developers and collaborate with teams in operations and finance to design innovative solutions. The ideal candidate has at least 8 years of experience in software development, strong proficiency in Python, and a proven track record of delivering high-quality solutions. This role offers an opportunity to work in a dynamic environment that values collaboration, innovation, and personal growth.

Qualifications

• At least 8+ years of professional software development experience.
• Minimum of 4 years of experience in Python.
• Experience in Financial Services or a highly regulated environment is beneficial.
• Proficiency in one additional programming language preferred (e.g., C++, Java).
• Strong communication skills to engage technical and non-technical teams.
• Proven track record of delivering scalable solutions in production.

Responsibilities

• Take ownership of key components within the platform.
• Mentor junior developers and provide technical guidance.
• Implement improvements to enhance user experience.
• Coordinate project execution to meet industry best practices.
• Document features, code, and processes effectively.

Skills

Python

Technical leadership

Collaboration

Problem solving

Continuous learning

Tools

Version control

Agile methodologies

Job description

As a Senior 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