Associate, Front Office Software Engineer

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 back testing 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.Responsibilities:Partner directly with traders and analysts to engineer and optimize trading processes, analytical models, and systematic strategies.Build and maintain scalable

high-performance Python 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.Qualifications:Bachelor’s or Master’s degree in Computer Science or a related STEM field.0-3 years of professional software engineering experience (talented new graduates are encouraged to apply).Strong foundation in computer science fundamentals, including data structures, algorithms, and software design principles.Proficiency in Python for backend development (services, APIs, data processing).Prior experience developing front-end applications utilizing React, Angular, TypeScript is preferred.Excellent problem-solving and analytical skills with strong attention to detail.Strong communication skills, with the, ability to collaborate

effectively with both technical and commercial teams, 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. Preferred Qualifications:Familiarity with cloud platforms (e.g., AWS) and data warehousing solutions (e.g., Snowflake).Experience working in a Linux/Unix environment.Knowledge of DevOps practices and CI/CD pipelines.Prior exposure to or a demonstrated interest in finance, quantitative trading, or the commodities markets.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 benefitsEmployee assistance & wellness programsParental and family leave policiesCCI 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 programTuition assistance & reimbursementQuarterly Innovation & Collaboration AwardsEmployee discount program, including access to fitness facilitiesCompetitive paid time offContinued learning opportunitiesVisit to learn more!SummaryLocation: London, UKType: Full time