Python Developer

Senior Python Developer

London Contract Energy / Trading Environment
£400-£425 per day (Inside IR35)

We are supporting a leading organisation operating within the energy and commodities space who are looking to engage a Senior Python Developer to support the build‑out of advanced data‑driven applications and analytical tools.

This is a hands‑on engineering role working at the intersection of data, analytics and front‑office stakeholders. You will be responsible for building clean, modular Python applications, manipulating complex datasets and delivering interactive dashboards used for commercial insight.

You will:

• Develop robust, production‑grade Python applications
• Manipulate and analyse large datasets using pandas and numpy
• Build interactive dashboards using Plotly Dash
• Design modular, reusable and well‑tested code
• Integrate with REST APIs and backend services
• Collaborate with commercial and technical stakeholders to translate requirements into scalable solutions
• This is a highly technical role suited to someone who enjoys building clean systems rather than quick scripts.

• Hands‑on Python development experience
• Strong object‑oriented programming skills
• Deep experience with pandas and numpy for data manipulation
• Experience with virtual environments, dependency management and packaging
• Strong understanding of software engineering best practices including Git, unit testing (pytest), documentation and code quality tools
• Experience building data‑driven applications in a commercial environment.