Overview
We are seeking a high-calibre Senior Python Developer to join our London-based Engineering squad. Sitting at the heart of our Front-Office analytics platform, you will bridge the gap between complex energy market fundamentals and high-performance software engineering.
You will be responsible for the architecture and delivery of scalable data products that power real-time trading decisions. As a senior member of the London hub, you will act as a technical lighthouse mentoring junior talent, driving TDD standards, and ensuring our cloud-native infrastructure is as agile as the markets we trade in.
Responsibilities
- Engineering Excellence: Design and build robust, low-latency Python solutions for processing large-scale financial and energy market datasets.
- Architectural Leadership: Lead decisions on system design, transitioning legacy scripts into scalable, containerised microservices.
- Stakeholder Engagement: Partner directly with Traders, Quants, and Product Managers to translate market requirements into production-ready code.
- Mentorship: Conduct rigorous code reviews and foster a culture of continuous learning for our mid-level and junior engineers.
- DevOps Culture: Own your code from local dev to production, leveraging CI/CD automation and Kubernetes orchestration.
- Operational Integrity: Troubleshoot business-critical production issues in a high-pressure, time-sensitive trading environment.
Technical Requirements
Core Stack (Must Have)
- Expert Python (3.9+): Mastery of OOP, Design Patterns (Factory, Strategy, Observer), and logical data modelling. Familiarity with recent PEPs.
- Data Science Tooling: Advanced use of pandas and SQLAlchemy. Experience with parquet and Arrow for high-performance memory management.
- Testing: Strong advocate for TDD/BDD (Pytest, Behave); experience in building automated integration test suites.
- Modern DevOps: Expert Git, Docker, and CI/CD pipelines (Azure DevOps/GitHub Actions).
- SQL Mastery: Deep knowledge of PostgreSQL or SQL Server (Query tuning, indexing strategies, and complex joins).
Preferred Skills
- Cloud & Orchestration: Hands-on Kubernetes (AKS/EKS) including Helm charts and StatefulSets.
- Market Knowledge: Previous experience with ETRM systems, tick data, or financial risk analytics.
- Build Tools: Experience with Poetry or uv for modern dependency management.
Qualifications & Experience
- Experience: 7+ years in professional software development, with a significant tenure in London’s Financial Services or Energy Trading sectors.
- Education: BSc/MSc in Computer Science, Mathematics, or a related Engineering field.
- Soft Skills: Exceptional communication skills; the ability to explain complex technical trade-offs to non-technical stakeholders in a fast-paced environment.