Junior Python Developer
Role details
Job location
Tech stack
Job description
Step into a role where you'll learn Python development hands on while helping shape the future of Retail Finance. As a Junior Python Developer, you'll build smart automation and financial models that power real business change. You'll work alongside talented developers, analysts, and experts who'll support your growth every step of the way. Expect to get stuck into real delivery, from designing and testing through to creating user friendly model interfaces. If you're curious, collaborative, and excited to grow your technical skills, this is your chance to make an impact from day one!, We're on an exciting journey to transform our Group and the way we're shaping finance for good. We're focusing on the future, investing in our technologies, workplaces, and colleagues to make our Group a great place for everyone. Including you.
Day to day responsibilities
Support the design, build, UAT and ongoing maintenance of Python-based financial models and automation tools.
Work closely with experienced developers, Business Analysts, and domain experts to translate business needs into technical solutions.
Contribute to developing efficient, maintainable code for financial models and automation tasks.
Support the creation of user-friendly interfaces for model execution and reporting.
Help ensure code quality through unit, integration, and system tests.
Participate in design forums and peer code reviews.
Collaborate in agile delivery, including planning, backlog refinement, demos and retros, and helping prioritise work that drives measurable business value.
Demonstrate a proactive commitment to continuous learning and professional growth, seeking opportunities to expand your technical expertise and contribute to team success.
Requirements
Are you passionate about learning Python development and keen to build your skills in automation and financial modelling? Do you want to contribute to meaningful change in Retail Finance? If so, we'd love to hear from you!
We're looking for a Junior Python Developer to join our Retail Finance Change team and support the delivery of innovative financial solutions. You'll bring curiosity, a willingness to learn, and a collaborative mindset as we work on a strategic backlog of development and optimisation., * Experience of Python model development and implementation.
- A basic understanding of core software development principles.
- An interest in working with data and/or financial models.
- Familiarity with common Python tooling and best practices, including:
-
Virtual environments.
-
Package management (e.g. uv, pip, poetry).
-
Source control (e.g., Git/GitHub) for collaborative development.
-
CI/CD pipelines for automated testing and deployment.
-
Testing frameworks (e.g. pytest, unittest).
-
Code quality (e.g. flake8, black, isort, mypy, ruff)
- Documentation tools (e.g., MkDocs, Sphinx) for maintainable technical documentation.
- Good communication and presentation skills.
- Passion for learning and staying ahead of the curve, and an ambition to become an experienced Python developer.
And any experience of these would be really useful
- Experience or interest in business analysis.
- Exposure to front-end technologies e.g. React.
- Curiosity about data processing and validation libraries (Polars, Pandera), numerical computing (NumPy, Numba), and API frameworks (FastAPI).