{"id":4207182,"url":"https://alion.io/job/ercot-senior-mms-application-developer-markets-ui","title":"Senior MMS Application Developer - Markets & UI","company":{"id":6006,"name":"ERCOT","domain":"ercot.com","url":"https://alion.io/company/ercot","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":81,"open_postings":4,"ghost_share":0,"stale_share":0.75,"repost_share":0,"time_to_fill_p50_days":48,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Austin, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":121000,"max":167000,"currency":"USD","period":"year","gross":null,"usd_annual":167000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Bitbucket","optional":false},{"name":"C++","optional":false},{"name":"Fortran","optional":false},{"name":"Oracle","optional":false},{"name":"Perl","optional":false},{"name":"Python","optional":false},{"name":"Selenium","optional":false},{"name":"SOAP","optional":false},{"name":"SQL","optional":false},{"name":"Anomaly Detection","optional":true},{"name":"Apache Tomcat","optional":true},{"name":"Git","optional":true},{"name":"GitHub","optional":true},{"name":"Java","optional":true},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-11-12T23:57:48Z","employer_posted_date":"2026-11-12","last_verified_at":"2026-11-12T23:57:48Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"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.\nERCOT is committed to fostering inclusion at alllevels 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 diverseworkforce strengthens us and allows for a collaborative environment to solve the challenges that face our industry today and in the future.\nDevelops 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.\nJOB DUTIES\nWorks under the direction of a senior developer or supervisor/manager to complete departmental goals and assignments.\nPerforms all work according to applicable rules and regulations including regulatory requirements and organization policies and procedures.\nGood 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.\nWorks with internal stake holders closely, reviews and understands functional and non-functional requirements.\nDevelops 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.\nDesign, develop and test market applications backend oracle database changes using Oracle PL/SQL programming language.\nParticipates in requirements and design review discussions with market system vendors (Hitachi Energy and Resource Innovations) and ensure quality software is delivered by vendors.\nMerge vendor developed market applications software changes with internal developed changes, build, deploy, and test merged software in development environments.\nDevelops and manages source code using Atlassian Bitbucket source code control tool.\nAdheres to software development life cycle (SDLC) standards for all the software changes within portfolio.\nUnderstands and follows market applications software release process to deliver software changes to customers seamlessly. Adheres to change management processes during software release delivery.\nLevel 3 - Above +\nDesigns and develops market applications optimization solvers CPLEX/AMPL models to incorporate various constraints.\nWorks with vendors on market applications and its interfaces improvements and proposes design changes.\nPerforms code reviews and approve code changes developed by other developers.\nAutomates 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.\nProvides advice and guidance to ERCOT Grid and market Operations regarding GMS market applications, processes, and tools.\nEnsures 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.\nWorks with Market Participants, ERCOT representatives, and vendors to drive and deliver solutions for the ERCOT Electricity Market’s needs.\nRepresents ERCOT at market participant meetings.\nPREFERRED SKILLS\nProgramming Languages/Packages/Scripting: C, C++, VisualC++, FORTRAN, Java, Perl, Python, PL/SQL, Shell Scripting\nWeb Application Servers: JBOSS, Tomcat, JWS, Spring Boots,\nMessage Queues: Tibco JMS, AMQ \nWeb Based Development - J2EE, Servlets, SOAP, Java Script, HTML/CSS, XML\nDatabase: Oracle, SQLSERVER\nSource Code Control Tools: Git, GitHub\nOptimization Solvers: CPLEX/AMPL, Gurobi\nREQUIRED EXPERIENCE\nLevel 2: Requires minimum 1 year job related work experience in excess of degree requirements\nLevel 3: Requires minimum 3 years of job-related work experience in excess of degree requirements\nSenior Level: Requires minimum 5 years of job-related work experience in excess of degree requirements\nSalary and level will be based on overall experience as determined by ERCOT.\nPREFERRED EXPERIENCE\nExperience with one of the vendors (Hitachi Energy/ABB, GE, Siemens, Resource Innovations/Nexant, OSI Inc) Energy or Market Management Systems and applications preferred.\nPower industry experience in grid and market arena preferably with software vendors or ISO/utilities.\nExperience with programming languages such as FORTRAN, C, C++, Java, Perl and Python.\nExperience with Oracle PL/SQL\nExperience with Commercial Optimization Solvers: CPLEX/AMPL, Gurobi\nExperience with CIM/XML model-based tools.\nExperience with developing integration layers using Messaging Services: Tibco JMS, AMQ\nExperience applying AI/ML techniques and data analytics for forecasting, anomaly detection, and operational insights\nEDUCATION\nBachelor's Degree: Electrical Engineering, Computer Engineering, Computer Science or Related field (Required)\nMaster's Degree: Electrical Engineering, Computer Engineering, Computer Science or related field (Preferred)\nor a combination of education and experience that provides equivalent knowledge to a major in such fields is required\nWORK LOCATION - Taylor, TX:\nEmployees 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\nRemote work is required to be performed from your Texas residence. \nEmployees may opt to work on-site more than required or 100% of the time\nThe 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, #LI-Hybrid\nERCOT 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.\nExpected Salary Range:\n$121,000 - $167,000","description_format":"text","description_chars":7479,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Power Grid"],"lifecycle":[{"event":"open","at":"2026-11-12T23:57:48Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":48,"reasons":["conf:1","win:early"],"computed_at":"2026-11-13T01:19:06Z"},"pay":{"stated_usd_annual":167000,"is_top_pay":false},"html_url":"https://alion.io/job/ercot-senior-mms-application-developer-markets-ui","json_url":"https://alion.io/job/ercot-senior-mms-application-developer-markets-ui.json","meta":{"generated_at":"2026-11-13T01:19:06Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":2883,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-14T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":6006},"rest":"https://alion.io/mcp/rest/get_company?id=6006"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fercot-senior-mms-application-developer-markets-ui"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"free","price":{"credits":0,"usd":0},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fercot-senior-mms-application-developer-markets-ui"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fercot-senior-mms-application-developer-markets-ui"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/ercot-senior-mms-application-developer-markets-ui\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fercot-senior-mms-application-developer-markets-ui"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4207182}},{"tool":"search_jobs","arguments":{"company":"ercot.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4207182},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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