Senior ETRM Application Developer page is loaded Senior ETRM Application Developerlocations: London, UKtime type: Full timeposted on: Posted Todayjob requisition id: R1285Castleton Commodities International (CCI) is hiring a Senior ETRM Application Developer to expand our Commodities Trading Application Development team. This role sits at the center of our end-to-end trading lifecycle and is responsible for building and enhancing the applications and integrations that support front-to-back commodities trading, from exchange connectivity and trade capture through Confirmations, Scheduling, P&L, Risk, & Settlements. You will work across a distributed application landscape and partner closely with Trading, Risk, Operations, and Technology teams to deliver scalable solutions with strong data quality, resiliency, observability, and control. The ideal candidate is a hands-on engineer who can design clean interfaces, modernize integrations, and drive best practices across development and release processes. Responsibilities: Design, develop, and support applications and services across the end-to-end commodities trade lifecycle. Build and enhance integrations between ETRM platforms and systems utilizing Java & Oracle. Develop and maintain robust data pipelines including mapping, transformations, validations, and exception handling to ensure accuracy and completeness. Partner with Trading, Risk, Scheduling, Settlements, and Accounting stakeholders to translate requirements into technical designs and deliverables. Own production support for assigned systems, including incident response, root cause analysis, and implementation of permanent fixes. Improve operational resiliency through monitoring, alerting, automated controls, reconciliation routines, and reprocessing capabilities. Contribute to architecture and design decisions with a focus on performance, maintainability, testability, and security. Participate in code reviews and mentor engineers by promoting strong engineering standards and reusable design patterns. Drive modern SDLC practices including version control discipline, automated testing, CI/CD, and release management. Coordinate and lead work delivered by offshore development teams, including planning, task delegation, and quality oversight. Qualifications: Bachelor's Degree in any relevant discipline such as Mathematics, Computer Science, or Engineering. 10+ years of experience successfully delivering ETRM development and support in a commodity trading company. Experience working with a US based management team and global development team with offshore development. Proven ability to directly interface with business users on the entire SDLC. Significant experience in Triple Point (TPT) CommodityXL (CXL) or similar full scale ETRM system. Experience in interfacing with commodity exchanges (ICE, CME, NYMEX). Working knowledge in cloud platforms such as AWS and Azure. Ability to work effectively in a fast-paced, dynamic and high-intensity environment including an open-floor plan, with timely responsiveness and the ability to work beyond normal business hours when required. Technical Skills: Python Kafka Java (J2EE) JavaScript Spring Framework SQL (AWS Redshift, Oracle, Sybase and DB2), Oracle PL/SQL Rest API Angular or React Scripting (Windows, Linux) IBM MQ, TIBCO, JMS 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 opportunitiesVisit to learn more!Castleton Commodities International is a leading global energy commodities merchant and infrastructure asset investor. As a trader, CCI deploys capital on a proprietary basis in the physical and financial commodity markets, providing the Company with market insights and access. As a strategic investor and developer, CCI leverages its market expertise, operations capabilities, and industry knowledge to invest in, and develop, select commodity infrastructure assets. This fully integrated platform has generated strong risk-adjusted returns for our investors since our formation.