Senior Front Office Software Engineer

Castleton Commodities International; Stamford; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading energy trading company in Stamford seeks an experienced data engineer to partner with commercial trading teams, building and optimizing analytical models. Candidates should have strong Python programming skills, advanced SQL knowledge, and familiarity with DevOps practices. This role offers competitive benefits, a high-performance trading environment, and the opportunity for innovation.

Benefits

Comprehensive medical and dental benefits

Employee wellness programs

Parental leave policies

Charity volunteering days

Tuition assistance and reimbursement

Employee discount program

Continued learning opportunities

Qualifications

• Strong professional experience with Python and deep understanding of object-oriented programming.
• Advanced knowledge of SQL and relational database technologies.
• Familiarity with DevOps practices, including Docker and cloud-native deployments.
• Experience in Linux and Windows environments.
• Exposure to AWS and Snowflake technologies is highly desirable.

Responsibilities

• Partner with trading teams to optimize trading processes and analytical models.
• Build and maintain Python-based services and APIs using modern frameworks.
• Design solutions for supply and demand models and market data analysis.

Skills

Python programming

SQL

DevOps practices

Linux

AWS and Snowflake

Job description

Castleton Commodities International (www.cci.com) is redefining how data and technology drive the future of global energy trading. Our Data Science & Technology team designs powerful systems and innovative tools that help front-office teams understand market behavior, forecast price movements, and manage risk more effectively. With a commitment to excellence and a modern, open-source technology stack, we solve complex, high-impact challenges at scale using cloud-native infrastructure, machine learning platforms, real-time analytics, custom APIs, and internal libraries.

If you’re looking to build cutting-edge solutions in a high-performance trading environment, we’d love to hear from you. Apply today and take the next step in your technology career at CCI!

What You Build

• Partner directly with commercial trading teams to engineer and optimize trading processes and analytical models.
• Build and maintain Python-based services and APIs using modern frameworks and best-in-class design patterns.
• Design and develop solutions to support supply and demand models, market data analysis, and position management.
• Design cloud-native tools that integrate seamlessly into our Front Office platform, including visualization and analytics interfaces.

What You Bring

• Strong professional experience with Python and deep understanding of object-oriented programming.
• Advanced knowledge of SQL and relational database technologies.
• Familiarity with DevOps practices, including Docker and cloud-native deployments.
• Experience in Linux and Windows environments.
• Exposure to AWS and Snowflake technologies is highly desirable.
• 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.

Employee Programs & Benefits

• 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 employees are allocated 2 days annually to volunteer at 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

Visit https://www.cci.com/careers/life-at-cci/ to learn more!

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