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...

Now Hiring: Medical Assistants | Tulsa, OK System One is hiring Medical Assistants for a specialty clinic in Tulsa! This is a temp-to-hire opportunity with a great team that is looking to bring someone on quickly. Pay: $17–$20/hr (DOE) Schedule: Full-T...

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...

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 ...

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...

POSITION SUMMARY Successful candidates must be able to provide proof of ability to work in the U.S. without sponsorship. The MEP Superintendent is responsible for managing mechanical, electrical, and plumbing (MEP) field operations to ensure projects a...

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: IT Business Analyst Location: Tulsa, OK Type: Direct Hire Compensation: $105000 - $128000 annually Contractor Work Model: Hybrid JOB DESCRIPTION IT Business Analyst – Flexible Customer Payments General Summary The IT Business Analyst for the...

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...

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...

Bilingual Enrollment Clerk (Contract) – Tulsa, OK System One is hiring! System One is seeking a Bilingual Enrollment Clerk for a client located in downtown Tulsa. This is a great opportunity for someone with strong administrative and data entry skills ...

Permitting Coordinator The Permitting Coordinator assists with all aspects of tracking, organizing, and monitoring Building, Zoning, and Site permits from initial submittal through project closeout. This role works closely with the permitting team and ...

Document Control Specialist (Contract Only 4-6 months) Location: Tulsa, Oklahoma Type: Contract Contractor Work Model: Onsite Responsibilities Manage, organize, and maintain all technical documentation to ensure compliance with internal processes and e...

System One is partnering with a local company in search of a Sr. Architectural Document QA / QC Leader Location: Tulsa, Oklahoma WHAT YOU’LL DO… With projects nationwide serving a broad market, every day brings a new measure of professional challenge a...

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...

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...

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...

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...

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 ...

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...

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...

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 ...

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...

As a Low Voltage Project Manager, you will play a pivotal role in overseeing the successful completion of Low Voltage installation projects on time and within budget. You will be responsible for: Developing comprehensive project plans and schedules Dir...

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...

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...

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...

Civil PE System One is partnering with an architectural firm seeking a Civil PE Engineer here in the Tulsa area. Responsibilities include: Serve as the "right hand" to the principal in civil site development projects, managing the full project lifecycl...

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 ...

MEP Manager Location: Tulsa, OK Type: Direct Hire | Onsite Mission Critical experiance Overview The MEP Manager oversees mechanical and electrical field operations to ensure projects are completed safely, on time, and within budget. This role leads MEP...