Python Software Engineer

Fundment; Greater London; Hybrid; GBP 85,000 - 120,000; Full time

Benefits offered by this job

Pension 6% employer contribution

Private health insurance

Medicash Cashplan

Travel insurance

Life assurance

Employee Assistance Programme

Annual leave 28 days + bank holidays

Compassionate leave

Parental leave

Jury service paid

Hybrid work in Fitzrovia

Job summary

Fundment is seeking an experienced Python Software Engineer to join our product engineering team. You’ll build and evolve backend systems powering our wealth platform using modern Python tools, APIs, and data-driven workflows.

You’ll collaborate across teams, own complex problems, and ship production-ready code that drives client outcomes in a fast-paced, supportive environment.

Qualifications

• 5+ years of professional experience writing production-grade Python.
• Strong understanding of modern Python libraries, REST APIs, and async patterns.
• Familiarity with SQL and relational databases at scale.
• Passion for pragmatic clean code, robust architecture, and scalable systems.
• Strong communicator, comfortable with collaboration and taking ownership.
• Experience working in SaaS or fintech.
• Bonus: experience with GCP or similar cloud-native environments.

Responsibilities

• Design, build, and maintain APIs, backend services, and internal systems.
• Develop data-driven workflows and integrations with third-party systems.
• Shape technical direction and plan for scalability, performance, and reliability.
• Write clean, pragmatic code focusing on maintainability, observability, and security.
• Investigate complex issues across distributed systems and drive long-term solutions.
• Collaborate with Product, Operations, and engineers to translate business needs.
• Participate in code reviews and contribute to team engineering practices.
• Mentor peers and help grow a high-trust engineering culture.
• Work with Python 3.x, FastAPI, Pydantic, SQLAlchemy, Pandas, NumPy.

Skills

Python

Async programming

System design

Communication

Ownership

SaaS experience

Tools

FastAPI

Pydantic

SQLAlchemy

Pandas

NumPy

MySQL

PostgreSQL

GCP

Job description

Fundment is a fast-growing wealth infrastructure company transforming the £3 trillion UK wealth management industry. Our modern investment platform is becoming the platform of choice for financial advisers and their clients. We’re building high-performance tools with modern technology to create a better investment experience.

About the Role

We’re looking for an experienced Python Software Engineer to join our product engineering team. You’ll help build and evolve the backend systems that power our platform – working with modern Python tools and frameworks to deliver secure, scalable, and maintainable services. This includes building APIs, designing backend systems, and developing internal tools that support our operations and client-facing platform.

You’ll work closely with other engineers and cross-functional teams, take ownership of complex problems, and ship production-ready code that has real business impact. You’ll also contribute to design and architecture discussions and help maintain high standards for code quality and system reliability.

This role is best suited to someone with at least 4 years’ experience in Python based environments, who enjoys working in a fast-paced setting, values ownership and responsibility, and thrives in a collaborative, supportive team where real impact is encouraged.

What You’ll Be Doing

• Design, build, and maintain APIs, backend services, and internal systems that support both client-facing features and operational teams
• Develop and evolve data-driven workflows and integrations with third- party systems, including asynchronous processing and event-driven architecture
• Shape technical direction, contribute to architectural decisions, and plan for scalability, performance, and reliability
• Write clean, pragmatic code with a strong focus on maintainability, observability, and security
• Investigate complex issues across distributed systems, identify root causes, and drive long-term solutions
• Collaborate closely with Product, Operations, and fellow engineers to translate business needs into robust, well-engineered solutions
• Contribute to code reviews, technical discussions, and shared team practices
• Mentor peers and help grow a high-trust, high-impact engineering culture
• Python 3.x with FastAPI, Pydantic, SQLAlchemy, Pandas, and NumPy
• Relational databases: MySQL and PostgreSQL
• GCP experience is a plus, but not required
• Modern Middleware is a plus – e.g. Pub/Sub, Memcache

What We’re Looking For

• 5+ years of professional experience writing production-grade Python
• Strong understanding of modern Python libraries, REST APIs, and async patterns
• Familiarity with SQL and working with relational databases at scale
• Passion for pragmatic clean code, robust architecture, and scalable systems
• Strong communicator, comfortable with both collaboration and taking ownership
• Experience working in fast‑paced product teams, ideally within SaaS or fintech
• (Bonus) Experience working in GCP or a similar cloud‑native environment

Our Values

• Collaborative – We solve problems together, with empathy and respect
• Innovative – We challenge assumptions and rethink what’s possible
• Supportive – We help each other grow and succeed
• Flexible – We adapt and evolve quickly as we scale
• Trustworthy – We deliver 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.