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MMS Applications Engineer

ErcotAustin, TXL4 MidJuly 28th, 2026
Overview Join to apply for the GMS Application Engineer role at ERCOT . At ERCOT, our diverse and dynamic work environment provides a platform on which employees can work together to build the future of the Texas power grid and wholesale market utilizing the latest technologies and resources. We encourage you to join our talented, dedicated workforce to develop world-class solutions for today and tomorrow's energy challenges while learning new skills and growing your career. ERCOT is committed to fostering inclusion at all levels of our company. It is the cornerstone of our corporate values of accountability, leadership, innovation, trust, and expertise. We know that individuals with a wide variety of talents, ideas, and experiences propel the innovation that drives our success. An inclusive and diverse workforce strengthens us and allows for a collaborative environment to solve the challenges that face our industry today and in the future. Responsibilities GMS Application Engineer, Markets provides support for Market Management Systems (MMS) applications portfolio such as Security Constrained Economic Dispatch (SCED), Day-Ahead Market (DAM), Reliability Unit Commitment (RUC), Congestion Revenue Rights (CRR), QSE Training Simulator etc. Actively involved in the design, development, testing, validation and implementation of modifications and enhancements to MMS applications. This position will report to the Supervisor/Manager of Grid & Market Solutions (GMS) Applications Engineering - Markets. Understands and apply principles, theories and concepts related to the profession and ERCOT's culture. Exercises judgment within defined procedures and practices to determine appropriate action. Impact is generally limited to specific assignments or projects. May respond to inquiries and/or provide assistance and/or guidance to lower-level workers. Additional Job Duties Works under the direction of a senior level engineer or supervisor/manager to complete departmental goals and assignments. Performs all work according to applicable rules and regulations including regulatory requirements and organization policies and procedures. Member of the 24/7 Market Applications Engineering support on call team and supports, troubleshoot market applications and system on call issues. Assists in the proactive enhancements, improvements and issue remediation. Coordinate application set up and testing with QSEs, LSEs, REs as appropriate. Performs MMS model load testing on periodic basis and updates the model data in real-time based on established procedures. Design and Test MMS Interfaces and Web & Client/Server applications changes. Verify and support MMS applications during system site failovers, server/system/database upgrades and patching Supports the execution of Disaster Recovery Drills and business continuity procedures Maintain, troubleshoot and repair MMS applications and interfaces, and escalate as appropriate May provide on the job training or help oversee the work of other engineers/analysts Act as a consultant, representative and subject matter expert in project and activities that affect the MMS environments and applications as appropriate Participates in multifunctional teams to obtain input, address comments and provide application support Represents the Market Applications Engineering Team at interdepartmental and Stakeholder meetings All Levels -- Preferred Work Experience Experience with Hitachi ABB or any MMS vendors suite of applications Experience with Data Historians such as OSIsoft PI Experience with programming languages such as FORTRAN, C, C++, Java & Perl Experience with PL/SQL Required Experience Level 2 Requirements: Requires minimum 1 year job related work experience in excess of degree requirements Level 3 Requirements: Requires minimum 3 years job related work experience in excess of degree requirements Senior Level Requirements: Requires minimum 5 years job related work experience in excess of degree requirements Lead Level Requirements: Requires minimum 8 years job related work experience in excess of degree requirements Salary and level will be based on overall experience as determined by ERCOT. Education Bachelor's Degree: Electrical Engineering, Computer Engineering, Computer Science or related field (Required) Master's Degree: Electrical Engineering, Computer Engineering, Computer Science or related field (Preferred) or a combination of education and experience that provides equivalent knowledge to a major in such fields is required Work Location Employees will be required to be on-site in Taylor, TX at a minimum of 2 days per week, or more, as needed based on the business needs as determined by management On-site schedules are flexible or may be rotated based on business needs as determined by the Manager Remote work is required to be performed from your Texas residence. Employees may opt to work on-site more than required or 100% of the time The foregoing description reflects the minimum qualifications and the essential functions of the position that must be performed proficiently with or without reasonable accommodation for individuals with disabilities. It is not an exhaustive list of the duties expected to be performed, and management may, at its discretion, revise or require that other or different tasks be performed as assigned. This job description is not intended to create a contract of employment with ERCOT. Both ERCOT and the employee may exercise their employment-at-will rights at any time. ERCOT is firmly committed to equal employment for all qualified persons without regard to race, sex, medical condition, religion, age, creed, national origin, citizenship status, marital status, sexual orientation, physical or mental disability, ancestry, veteran status, genetic information or any other protected category under federal, state or local law. Expected Salary Range $109,165 - $185,571 Seniority level Mid-Senior level Employment type Full-time Job function Management and Manufacturing Industries Utilities #J-18808-Ljbffr