Senior Accountant Location: Tulsa, OK-Onsite Type: Direct Hire Compensation: $70-90K/year System One is working with a well-established manufacturing organization to identify an experienced Senior Accountant to join their accounting team. This role sup...

Senior Accountant/ Accounts Payable Manager Accounting: Prepare, review, and reconcile general ledger accounts and financial statements. Support month-end and year-end close, including journal entries and accruals. Assist with annual audits and ensure ...

Job Title: Accountant Location: Tulsa, Oklahoma Type: Direct Hire Compensation: $75,000.00 - $95,000.00 Position Overview: System One is seeking an Accountant to perform a variety of accounting functions under the direction of the Controller. This role...

Senior Accountant System One is partnering with a client seeking an experienced Senior Accountant for a position based in Tulsa, OK. This position is responsible for the accounting of one or more companies and, like many positions within finance, will ...

Job Title: Senior Oil & Gas Accountant Location: Tulsa, Oklahoma Type: Direct Hire Compensation: $85000 - $100000 Contractor Work Model: Hybrid Senior Oil & Gas Accountant We are seeking an experienced Oil & Gas Accountant to support general ledger acc...

Project Accountant Location: Tulsa, OK Travel: Regular domestic travel Type: Full-Time | Exempt Salary: $70,000–$90,000/year Job Summary System One is seeking an experienced Project Accountant to support multiple projects and ensure accurate billing, r...

Controller System One is partnering with a client seeking an experienced and strategic Controller to join their team and provide financial leadership and oversight across their portfolio of environmental and civil projects. The Controller will be respo...

Job Title: Sr. Accountant Location: Tulsa, OK Type: Direct Hire Compensation:$75-84K/year System One is working with a client seeking an experienced Accountant to perform complex, professional-level accounting work in a public-sector environment. This ...

Job Title: Staff Accountant Location: Tulsa, OK Type: Direct Hire Compensation: $68-75K/year Contractor Work Model: Onsite Accountant (Public Sector) Job Summary Under general direction, this role performs complex, professional accounting work involvin...

Accounts Payable Supervisor Overview: System One is partnering with a client seeking an experienced and motivated Supervisor, Accounts Payable to lead and develop a high-performing AP team. Reporting to the Director of Accounting & Controllership, this...

Job Title: Executive Administrative Assistant Location: Tulsa, Oklahoma Type: Direct Hire Compensation: $70,000.00 - $90,000.00 System One is seeking a highly organized and detail-oriented Executive Administrative Assistant to support senior leadership...

Underwriter (Contract-to-Hire) – On-Site in Tulsa or OKC Compensation: $80,000 per year A client is seeking an experienced Mortgage Underwriter for an on-site, contract-to-hire position based in either Tulsa or Oklahoma City. This role requires a stron...

Overview We are seeking a skilled and customer-focused Technical Support Analyst II to provide advanced technical support to end-users. This role serves as the escalation point for complex issues that cannot be resolved at the Tier I level. The ideal c...

Intercompany Billing Analyst Overview: System One is partnering with a client seeking a Billing Analyst who is highly motivated and detail-oriented to support high-volume AR and AP transactions between company subsidiaries. This role reports to the Acc...

Accounts Payable Manager Overview: System One is partnering with a client seeking an AP Manager who will be responsible for overseeing the full-cycle accounts payable function, ensuring accurate and timely processing of invoices, vendor payments, and e...

Job Title: IT Asset Management Specialist Location: Tulsa, Oklahoma Type: Contingency Compensation: $90,000.00 - $100,000.00 Contractor Work Model: Hybrid Hours: 40.0 Security Clearance: Not specified Overview The IT Asset Specialist is responsible for...

Staff Accountant System One is partnering with a client seeking a Staff Accountant who will prepare monthly journal entries, account reconciliations, credit card analysis, and account reviews. This person will serve as backup to other team members in t...

Job Title: SAP Business Analyst I Location: Tulsa, Oklahoma Type: Contingency Compensation: $70,000.00 - $80,000.00 Contractor Work Model: Hybrid Hours: 40.0 Security Clearance: Not specified Overview The SAP Business Analyst will work closely with sen...

Job Description: A proactive, detail-oriented, and self-motivated sales professional is needed to help lead the Northeast U.S. equipment sales effort. In this role, the Regional Sales Manager will call on upstream, midstream, and downstream operators—p...

System One is seeking a detail-oriented and patient-focused Self-Pay Collections Representative to join a reputable medical facility in Tulsa, OK. This role is responsible for managing self-pay patient accounts, ensuring timely collection of outstandin...

Civil Intern Engineer System One is partnering with an architectural firm seeking a Civil Intern Engineer here in the Tulsa area. Responsibilities include: Assist in civil engineering site development projects, gaining hands-on experience in the field ...

Senior Designer (Vapor Controls) Responsibilities Design and draft packaged, skid-mounted vapor control equipment using Plant 3D (Plant Pro) and Autodesk Inventor Collaborate with cross-functional project teams to develop accurate and efficient control...

Customer Data Operations Specialist (Hybrid) Pay: $19/hour Location: Tulsa, Oklahoma Schedule: Hybrid Position Overview System One is partnering with a client in Tulsa, Oklahoma to join their Customer Data Operations team. This role is responsible for ...

Job Title: Archaeological Field Technician Location: Tulsa, Oklahoma Type: Contract Compensation: $22 - $27 hourly Contractor Work Model: Onsite Hours: Add the job’s scheduled days and times (delete if not needed) Security Clearance: List security clea...

A BIM Technician will assist on all aspects of architectural documentation working within a multi-discipline project team of architects and engineers. This work will include architectural production work, such as drafting, 3D computer modeling and main...

Job Title: IT Project Manager Location: Tulsa, OK Type: Direct Hire Compensation: $125,000 Contractor Work Model: Onsite JOB DESCRIPTION Plan, organize and manage resources to lead the completion of specific project goals supporting AI and Digital Tran...

Civil PE Engineer System One is partnering with an architectural firm seeking a Civil PE Engineer here in the Tulsa area. Responsibilities include: Design and manage projects involving water/sewer upgrades, lift stations, gravity-fed systems, water tow...

E&I Technician – Mill We are working with a client seeking a skilled Instrumentation & Electrical (E&I) Technician to support mill operations by ensuring reliable, efficient, and safe performance of all electrical and control systems. This role offers ...

Seeking a CONTRACT Expediter (4-6 months) to support production, supply chain, and quality requirements by ensuring critical parts, materials, and work orders move efficiently through the manufacturing process. This role is a hybrid desk + shop-floor p...

System One is seeking a detail-oriented and self-motivated Insurance Follow-Up Representative to support a respected medical facility in Tulsa, OK. This role is responsible for resolving outstanding insurance claims by working directly with payers, ide...