Accountant II - Back Office

Mitsui & Co. Energy Marketing and Services (USA), Inc.; Houston (TX); On-site; USD 65,000 - 90,000; Full time

Job summary

Mitsui & Co. Energy Marketing and Services (USA), Inc. is seeking a contract-to-hire Accounting Specialist to handle day-to-day back-office operations in the retail power sector.

Responsibilities include AR/AP, journal entries, reconciliations, and financial reporting, with focus on accuracy and compliance. You will collaborate with operations, credit, treasury, and billing teams, drive process improvements, and adopt tools like Excel Copilot to enhance workflows.

Qualifications

• More than 2 years direct experience in accounting or accounting-related fields.
• Experience with NetSuite, Allegro, and retail power billing systems (preferred).

Responsibilities

• Perform monthly accounting activities: AR/AP, journal entries, reconciliations.
• Collaborate with operations and credit teams to monitor customer payments and reporting.
• Support Treasury operations: cash management coordination and bank reconciliations.
• Support billing operations and data processing for the retail electricity business.
• Prepare monthly/quarterly financial reports (BS/PL/CF) and shareholder reporting.
• Perform budget-to-Actual variance analysis; assist with budgets and forecasts.
• Support internal controls; evaluate processes and data flows to improve.
• Adopt new tools/tech (Power Apps, Excel Copilot, AI analytics) to streamline workflows.
• Coordinate internal and external audit requests.
• Communicate with stakeholders (parent company, auditors, tax/accounting advisors, partners, vendors).
• Perform other duties as assigned.

Skills

Advanced Excel

Analytical thinking

Process improvement

Contract interpretation

AI tools familiarity

Stakeholder communication

Education

Bachelor's Degree in Accounting

2+ years accounting experience

Tools

NetSuite

Allegro

Retail billing system

Job description

Summary

This role is a contract-to-hire position responsible for day-to-day back-office operations within the retail power business, including financial reporting, retail electricity billing, support of treasury activities, and ensuring compliance with audit and tax requirements. In addition, this position actively contributes to process and data flow improvements, and the adoption of new technologies to enhance process efficiency. Reports to the Sr. Manager - Accounting. While employed by MEMS, this role is fully dedicated to supporting MEMSIS operations within the retail power business.

Essential Functions & Responsibilities

• Perform monthly accounting activities, including processing Accounts Receivable and Accounts Payable, preparing journal entries, and completing account reconciliations, with a focus on retail power contracts, usage-based revenue recognition, and market settlements.
• Collaborate with operations and credit teams to monitor customer payments and support timely reporting.
• Support Treasury operations, including cash management coordination and bank reconciliations.
• Support billing operations and data processing related to the retail electricity business.
• Prepare monthly/quarterly financial reports (BS/PL/CF) , and shareholder reporting.
• Perform budget-to-actual variance analysis; contribute to creating, updating, and analyzing budget and forecast.
• Support internal control assessments; evaluate accounting processes and data flows to identify inefficiencies and propose improvements.
• Proactively explore and adopt new tools and technologies (e.g., Power apps, Excel Copilot or AI-assisted analytics) to streamline process workflows.
• Coordinate internal and external audit requests.
• Communicate with internal and external stakeholders (parent company, auditors, tax/accounting advisors, project partners, and vendors) to complete tasks.
• Perform additional duties as assigned.

Required

REQUIRED SKILLS & ABILITIES

• Able to work accurately and independently in a fast-paced, multiple-deadline environment with minimal supervision.
• Able to analyze processes and data flows, identify improvement opportunities, and drive productivity enhancements.
• Basic business skills and knowledge (understanding of normal business flow and ability to interpret contracts, invoices, and official correspondence).
• Intellectual curiosity and willingness to continuously learn emerging technologies and incorporate them into daily work.
• Advanced Microsoft Excel skills (including pivot tables, complex formulas, Power Query, and data modeling); willingness to adopt AI-assisted tools such as Excel Copilot.
• Strong analytical and numerical reasoning skills, with the ability to interpret and reconcile complex, high-volume data.

Preferred

• Experience and strong understanding of the retail power business.
• Experience with ISO settlements, particularly ERCOT and PJM.
• Ability to adapt to a cross-cultural environment.

Education & Experience

• More than 2 years direct experience in Accounting or Accounting related fields are required.
• NetSuite, Allegro and Retail power billing system (preferred)
• Bachelor’s Degree in Accounting or related field required

Language Skills

• Fluent verbal and written skills in English.

Licences, Certificates, Registrations

• None

Work Environment & Physical Demands

This job operates in a professional office environment and routinely uses standard office equipment such as computers, phones, photocopiers, and filing cabinets. Physical demands include:

• Prolonged periods of sitting and may need to routinely move around to communicate with different groups

Disclaimer

This position description is not to be construed as an exhaustive statement of duties, responsibilities, or requirements. Employees may be required to perform any other job-related instructions as requested by their leader, subject to reasonable accommodation.

MEMS is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, or disability.