Python Developer

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.

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.

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

Docker, GitLab CI/CD, Git

4+ 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

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