Associate, Front Office Software Engineer

Castleton Commodities International; City Of London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A global leader in energy trading in London seeks a Software Engineer to optimize trading processes and develop cloud-native solutions. The ideal candidate holds a degree in Computer Science and has proficiency in Python, alongside strong problem-solving skills. This role offers a competitive benefits package including medical, wellness, and educational assistance.

Benefits

Comprehensive medical, dental, and retirement benefits

Employee wellness programs

Tuition assistance and reimbursement

Paid time off

Competitive paid time off

Qualifications

• Proficiency in Python for backend development.
• 0-2 years of professional software engineering experience.
• Strong foundation in computer science fundamentals.

Responsibilities

• Partner with traders to optimize trading processes.
• Build robust Python-based services and APIs.
• Design cloud-native tools for market analysis.

Skills

Proficiency in Python

Problem-solving skills

Strong communication skills

Communication

Education

Bachelor's or Master's degree in Computer Science or related STEM field

Tools

Cloud platforms (e.g., AWS)

Linux/Unix environment

Snowflake

Job description

Overview

Castleton Commodities International (https://www.cci.com) 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 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.

Qualifications

• Bachelor\'s or Master\'s degree in Computer Science or a related STEM field.
• 0-2 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).
• 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.

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

• 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

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

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