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ERCOT

Senior MMS Application Developer - Markets & UI

Austin, TX, United States

$121,000 - $167,000

Apply on ercot.wd1.myworkdayjobs.com About employer

Applications open in a new tab.

Job details

Pay: $121,000 - $167,000
Posting language: English
Posted: Nov 12, 2026

Original job description

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.

Develops design and performs software development for suite of Wholesale Electric Market Applications and Web-based User Interfaces. The suite includes Market Management Systems (MMS) applications such as Day-Ahead Market (DAM), Reliability Unit Commitment (RUC), Ancillary Service Market, Security Constraint Economics Dispatch (SCED), CIM Importer, Market Submissions, APIs, MMS database Interfaces, Market Simulator, Outage Scheduler (OS), User Interfaces (UI) and Congestion Revenue Rights (CRR) Applications. Adhere to software development life cycle (SDLC) processes that includes performing testing and validation of Market Applications and User Interface changes to deliver quality software to customers.

JOB DUTIES

Works under the direction of a senior developer 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.
Good Knowledge on core power systems operations and control functions like power flow studies, state estimation, contingency analysis, economic dispatch, Unit Commitment, and electric market operations.
Works with internal stake holders closely, reviews and understands functional and non-functional requirements.
Develops design and performs software development (using Fortran, C/C++, Java, Perl, Python etc. programming languages) and testing for suite of market applications and its interfaces.
Design, develop and test market applications backend oracle database changes using Oracle PL/SQL programming language.
Participates in requirements and design review discussions with market system vendors (Hitachi Energy and Resource Innovations) and ensure quality software is delivered by vendors.
Merge vendor developed market applications software changes with internal developed changes, build, deploy, and test merged software in development environments.
Develops and manages source code using Atlassian Bitbucket source code control tool.
Adheres to software development life cycle (SDLC) standards for all the software changes within portfolio.
Understands and follows market applications software release process to deliver software changes to customers seamlessly. Adheres to change management processes during software release delivery.

Level 3 - Above +

Designs and develops market applications optimization solvers CPLEX/AMPL models to incorporate various constraints.
Works with vendors on market applications and its interfaces improvements and proposes design changes.
Performs code reviews and approve code changes developed by other developers.
Automates market applications and user interfaces unit and regression testing as much as possible by developing scripts and using third party automation tools such as SOAP UI, Selenium.
Provides advice and guidance to ERCOT Grid and market Operations regarding GMS market applications, processes, and tools.
Ensures that GMS market and UI products and solutions comply with the organization’s architectural standards. Employs in the full systems development life cycle in projects and work processes. May provide on-the-job training or oversee the work of other developers.
Works with Market Participants, ERCOT representatives, and vendors to drive and deliver solutions for the ERCOT Electricity Market’s needs.
Represents ERCOT at market participant meetings.

PREFERRED SKILLS

Programming Languages/Packages/Scripting: C, C++, VisualC++, FORTRAN, Java, Perl, Python, PL/SQL, Shell Scripting
Web Application Servers: JBOSS, Tomcat, JWS, Spring Boots,
Message Queues: Tibco JMS, AMQ
Web Based Development – J2EE, Servlets, SOAP, Java Script, HTML/CSS, XML
Database: Oracle, SQLSERVER
Source Code Control Tools: Git, GitHub
Optimization Solvers: CPLEX/AMPL, Gurobi

REQUIRED EXPERIENCE

Level 2: Requires minimum 1 year job related work experience in excess of degree requirements
Level 3: Requires minimum 3 years of job-related work experience in excess of degree requirements
Senior Level: Requires minimum 5 years of job-related work experience in excess of degree requirements

Salary and level will be based on overall experience as determined by ERCOT.

PREFERRED EXPERIENCE

Experience with one of the vendors (Hitachi Energy/ABB, GE, Siemens, Resource Innovations/Nexant, OSI Inc) Energy or Market Management Systems and applications preferred.
Power industry experience in grid and market arena preferably with software vendors or ISO/utilities.
Experience with programming languages such as FORTRAN, C, C++, Java, Perl and Python.
Experience with Oracle PL/SQL
Experience with Commercial Optimization Solvers: CPLEX/AMPL, Gurobi
Experience with CIM/XML model-based tools.
Experience with developing integration layers using Messaging Services: Tibco JMS, AMQ
Experience applying AI/ML techniques and data analytics for forecasting, anomaly detection, and operational insights

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 – Taylor, TX:

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
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. #LI-MH1,

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:

$121,000 - $167,000

Apply on ercot.wd1.myworkdayjobs.com About employer

More about this job

Skills

CIM
Estimating
Software development
Fortran
C
C++
Oracle Java
Perl
Python
Programming languages
Oracle Database
Oracle PL/SQL
Atlassian Bitbucket
Change management
AMPL
Selenium
GMS
Market participants
Electricity market
Jboss
Apache Tomcat
JavaScript
HTML
CSS
Oracle
Microsoft SQL Server
Git
GitHub
ML
Data analysis
Forecasting
Electrical engineering
Computer engineering
Computer science

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Work requirements

Jobs in the United States