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Senior Accountant RTO/ISO Job

Job Grade: P
Hierarchy:  No - We can only hire at the posted level 
Union Position: Non-Bargaining





The purpose of this position is to accurately understand, account for and report all ISO/RTO transactions (sales/purchases, ancillary services, etc.) for the power marketing business. Responsibilities include a) shadow settlements using the respective ISO data to reconcile to internal data, b) analysis of energy, revenue, LMP, congestions, losses, Financial Transmission Rights (FTR) and all other charge type calculations used in the settlement of day-ahead and real-time markets, c) data entry in the transaction accounting systems, d) reconciliation of ISO settlement statements and invoices, e) communication with various ISOs to resolves discrepancies and to submit disputes, f) manage the invoice and payment process, g) record journal entries into the general ledger, h) reconcile various general ledger accounts and i) provide ISO analysis of activity to management. Flexible hybrid working model dependent upon business needs. 

Essential Responsibilities


  • Download and review the daily ISO settlement files and reconcile transmission, energy and pricing to the Xcel Energy transaction system. Research discrepancies and resolve differences to complete the checkout process. Work with the front office to resolve scheduling and settlement issues.
  • Maintain detailed supporting documentation of ISO activity. Provide analysis of ISO activity to front office traders and management to enhance the Company's bidding strategies.
  • Reconcile ISO invoices, research discrepancies and resolve differences with the various ISOs. Prepare and process requests for payment with appropriate approval authority. Must meet invoicing deadlines and payment processing deadlines while maintaining accuracy.
  • Complete monthly general ledger journal entries, analyze results for correctness and provide the supporting detail reports to the appropriate departments. Maintain files and work papers for audit purposes.
  • Assist in the development of new settlement systems, processes and controls
  • Reconcile applicable general ledger accounts and provide detailed analysis of account activity to management.
  • Other projects and duties as assigned




  • High school diploma or equivalent
  • Bachelor's Degree in Accounting or Finance (3 years experience in Transmission Accounting, ISO or an energy trading environment may substitute for the degree)
  • Proficient in the use of Microsoft Office suite





  • Energy industry experience.
  • Workflow Automation (RPA, Alteryx) experience. 
  • Experience with SQL.




Competency Band:

  • Accountability
  • Customer and Stakeholder Engagement
  • Job and Business Expertise
  • Operational Excellence
  • Relationship Focused


Location(s): CO - Denver
Organization: CFO Organization
Department:  29128:Market Operations Acct
Schedule: Full-Time

Non-Union jobs will be posted internally for a minimum of 5 business days, after 5 days the job may be unposted at any time.

Union jobs will be posted based on the union agreement.

The anticipated starting base pay for this position is: $66,000 to $94,000 per year

This position may also be eligible for the following benefits and/or pay components: Pay - Annual Incentive Program, Medical/Pharmacy Plan, Dental, Vision, Life Insurance, Dependent Care Reimbursement Account, Health Care Reimbursement Account, Health Savings Account (HSA) (if enrolled in eligible health plan), Limited-Purpose FSA (if enrolled in eligible health plan and HSA), Transportation Reimbursement Account, Short-term disability (STD), Long-term disability (LTD), Employee Assistance Program (EAP), Fitness Center Reimbursement (if enrolled in eligible health plan), Tuition reimbursement, Transit programs, Employee recognition program, Pension, 401(k) plan, Paid time off (PTO), Holidays, Personal holidays, Volunteer Paid Time Off (VPTO) (full-time employees only), Parental Leave


Click here to see our benefits

Recruiter: Elizabeth A Robinson
Hiring Manager: Tessa M Venetz

All qualified applicants will receive consideration for employment without regard to age, race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Individuals with a disability who need an accommodation to apply please contact us at

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Nearest Major Market: Denver

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