Senior Front Office Software Engineer

6 days ago

London, Greater London, United Kingdom Castleton Commodities International Full time £80,000 - £120,000 per year

Castleton Commodities International ) is a global leader in energy commodity trading and asset investment. Our Data Science & Technology team is central to our success, engineering the high-performance systems and innovative tools that power our commercial decision-making. We build the platforms that help our front-office teams understand market behavior, forecast price movements, and manage risk.

Our team solves complex, high-impact challenges using a modern technology stack. We develop everything in cloud-native infrastructure from real-time analytics to backtesting engines, third party integrations, and internal libraries—all designed to give CCI a competitive edge in the global commodities markets. This role is an opportunity to build solutions that have a direct commercial impact from day one.

What You Build:

  • Partner directly with traders and analysts to engineer and optimize trading processes, analytical models, and systematic strategies.
  • Build and maintain robust, performant Python-based services and APIs that power our analytics platform.
  • Develop solutions to support supply and demand models, market data analysis, and strategy research.
  • Design and implement cloud-native tools, including real-time analytics, visualization interfaces, and workflow automation, that integrate seamlessly into our Front Office platform.

What You Bring:

  • Strong professional experience in any programming language (python would be a plus)
  • Good knowledge of SQL and relational database technologies.
  • Familiarity with modern DevOps practices.
  • Exposure to AWS and Snowflake technologies is highly desirable.
  • Prior experience building or working on back testing engines and systematic trading is a plus.
  • Prior experience in energy or commodities trading is a major plus.
  • Ability to communicate effectively across technical and non-technical audiences.
  • Strong attention to detail, problem-solving skills, and a passion for technology innovation.
  • Must be able to work effectively in a fast-paced, dynamic and high-intensity environment including open-floor plan if applicable to the position, with timely responsiveness and the ability to work beyond normal business hours when required.

Employee Programs & Benefits:
CCI offers competitive benefits and programs to support our employees, their families and local communities. These include:

  • Competitive comprehensive medical, dental, retirement and life insurance benefits
  • Employee assistance & wellness programs
  • Parental and family leave policies
  • CCI in the Community: Each office has a Charity Committee and as a part of this program employees are allocated 2 days annually to volunteer at the selected charities.
  • Charitable contribution match program
  • Tuition assistance & reimbursement
  • Quarterly Innovation & Collaboration Awards
  • Employee discount program, including access to fitness facilities
  • Competitive paid time off
  • Continued learning opportunities

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