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We are seeking a skilled Market and Supply Systems Developer to support and enhance our market-facing applications, with a focus on ERCOT and PJM systems. This contract-to-hire role involves developing and maintaining software solutions that interact with Independent System Operators (ISOs), leveraging APIs and portals to ensure seamless data exchange and operational efficiency.

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Key Responsibilities

• Design, develop, and maintain applications supporting market operations, primarily for ERCOT and PJM.
• Integrate with ISO APIs and portals to automate data retrieval, submission, and reporting.
• Provide ongoing support and troubleshooting for existing market-facing systems.
• Collaborate with internal teams to gather requirements and deliver robust technical solutions.
• Monitor system performance and implement enhancements for reliability and scalability.
• Stay informed of ISO updates and ensure system compliance with evolving standards.

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Required Skills & Qualifications

• Strong proficiency in Java and Spring Framework for backend development.
• Experience with PL/SQL and Oracle databases for data management and reporting.
• Hands-on experience with ColdFusion for legacy system support and integration.
• Familiarity with ISO protocols and data exchange mechanisms (ERCOT, PJM).
• Experience working with APIs and web portals in a production environment.
• Solid understanding of software development lifecycle and best practices.

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Preferred Qualifications

• Experience with energy trading or ETRM systems.
• Knowledge of ISO market rules and data structures.
• Exposure to DevOps tools and CI/CD pipelines.

NRG Energy is committed to a drug and alcohol-free workplace. To the extent permitted by law and any applicable collective bargaining agreement, employees are subject to periodic random drug testing, and post-accident and reasonable suspicion drug and alcohol testing. EOE AA M/F/Vet/Disability. Level, Title and/or Salary may be adjusted based on the applicant's experience or skills.

Official description on file with Talent.