Senior Data Engineer – Short Term Power Markets

Senior Data Engineer – Short Term Power Markets

Castleton Commodities International (CCI) is a global leader in energy commodity trading and asset investment. Our Data Science & Technology team powers commercial decision‑making with high‑performance data, systems, and innovative tools. We build platforms and forecasts 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, including GenAI and cloud‑native infrastructure, from structured data and real‑time analytics to back‑testing engines and internal libraries. This role is an opportunity to build solutions that have a direct commercial impact from day one.

Castleton Commodities International seeks a Senior Data Engineer to join our DS&T team in London, supporting the Intraday Short‑Term Power business. The Data Engineer will play a critical role in engineering the availability, quality, and performance of real‑time data feeds that drive execution strategies, analytics, and decision‑making. This is an exciting opportunity to work within a fast‑paced, data‑driven trading environment, contributing directly to systematic trading and risk‑management efforts.

Responsibilities

• Design, build, and maintain scalable data pipelines to deliver real‑time and historical data for back‑testing, modeling, and execution of trading strategies.
• Integrate and manage data feeds from multiple sources, including fundamental market data, grid operations, weather providers, and internal trading systems.
• Collaborate closely with Technology and Trading teams to ensure the timely availability and reliability of data across all systems supporting the Intraday Power desk.
• Organize and structure Power data, including both reference and transactional data.
• Monitor, troubleshoot, and optimize streaming data infrastructure, proactively resolving issues to minimize downtime and ensure data integrity.
• Partner with Technology and Commercial teams to enhance the back‑testing and signal generation frameworks that support systematic trading models.
• Implement best practices in data governance, versioning, and lineage, ensuring compliance and traceability across the data stack.
• Develop internal tools, APIs, and dashboards that improve data accessibility, transparency, and usability for Traders & Analysts.

Qualifications

• Bachelor\’s degree in Computer Science, Engineering, Mathematics, or related field of study.
• 5-10 years of professional experience as a Senior Data Engineer, preferably supporting Intraday Short‑Term Power trading or similar real‑time energy market environments.
• Experience working with energy commodity time‑series datasets is required; familiarity with short‑term power market data sources such as EPEX, ENTSO‑E, or Nord Pool is strongly preferred but not required.
• Understanding of systematic trading workflows, including signal generation, back‑testing, and model validation.
• Proven ability to work in a high‑frequency, intraday trading environment with tight feedback loops between data, models, and execution.
• Experience with ETL/ELT frameworks to write pipelines to load millions/billions of records.
• Advanced skills in writing highly optimized SQL code.
• Hands‑on experience developing data solutions in Python, Pandas, Numpy, etc.
• Experience with relational databases; Snowflake highly preferred.
• Strong communication skills, with the ability to convey complex technical concepts to non‑technical stakeholders.

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!

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Information Technology

Industries

Investment Management

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