Job Title: Senior Oil & Gas Accountant Location: Tulsa, Oklahoma Type: Direct Hire Compensation: $90000 - $120000 Contractor Work Model: Hybrid Senior Oil & Gas Accountant We are seeking an experienced Oil & Gas Accountant to support general ledger acc...

System One is assisting a Tulsa client with a search for a Senior Accountant. The Senior Accountant will work with others who excel in their areas of expertise. Responsibilities: Support month-end and year-end close processes Perform reconciliations an...

System One is assisting a Tulsa client with a search for a Senior Accountant. The Senior Accountant will work with others who excel in their areas of expertise. Responsibilities: Support month-end and year-end close processes Perform reconciliations an...

Accountant Overview We’re seeking a detail-oriented General Accountant to support monthly close activities and day-to-day accounting operations across multiple entities. This is a hands-on role requiring strong fundamentals in GAAP, solid Excel skills,...

Senior Accountant System One is partnering with an oil & gas client seeking a Senior Accountant to support Gas Operational Accounting activities. This role is responsible for preparing and analyzing journal entries, account reconciliations, month-end c...

System One is currently seeking an experienced Accounting Clerk for a client in Tulsa. This is a full-time opportunity with a growing organization that offers a collaborative work environment and long-term potential. Schedule: Monday–Friday, 8:00 AM – ...

Credit Analyst Position Summary System One is partnering with a client seeking a Credit and Collection Analyst who will be responsible for evaluating customer credit risk and supporting the timely collection of outstanding receivables to maintain consi...

System One is seeking a Staff Accountant – Accounts Payable to support a fast-paced, high-volume accounting environment. This role is responsible for full-cycle accounts payable processing, ensuring accuracy, compliance, and timely execution of financi...

Director, FP&A Summary System One is assisting a Tulsa client with a search for a Director, Financial Planning & Analysis (FP&A). This role leads enterprise planning, forecasting, and financial strategy while partnering with executives to drive perform...

System One is hiring two contractors for a valued client in Downtown Tulsa. These are immediate openings expected to last approximately 4 months, supporting a busy department during a special project. Schedule: Monday–Friday, 8:00 AM – 5:00 PM Location...

System One is assisting a client with a search for an Operations Finance Controller to serve as the on-site finance partner to plant leadership, owning budgeting/forecasting and performance management. This role focuses on FP&A, operational finance, an...

Job Title: Controller Location: Tulsa, OK Type: Direct Hire Compensation: $110,000 - $140,000 Contractor Work Model: Hybrid – onsite and remote System One has partnered with a growing and established manufacturing organization assisting them in their s...

System One is hiring an Insurance Follow-Up Representative for a respected healthcare organization in Tulsa. This contract-to-hire opportunity is ideal for someone with medical billing experience who enjoys problem-solving and working directly with ins...

Loan Specialist System One has partnered with a local bank that is seeking a detail-oriented and dedicated Loan Specialist to join their team and contribute to their mission of delivering exemplary customer service and support. Position Summary: The Lo...

AR / Billing Specialist Tulsa, OK (Onsite) Contract-to-Hire $20–$24/hour (DOE) System One is hiring an AR/Billing Specialist for a client in the Tulsa area with strong, hands-on experience in Accounts Receivable and billing. This role is AR-heavy and i...

Job Title: Design Engineer Location: Tulsa, OK Type: Direct Hire A growing engineering organization is seeking a highly motivated Mechanical Engineer with strong experience in hydraulic system design. This role is ideal for someone who enjoys hands-on ...

Job Title: Customer Service Coordinator Location: Tulsa, Oklahoma Type: Direct Hire Compensation: $45,760.00 - $54,080.00 Contractor Work Model: Onsite – onsite System One has partnered with a growing manufacturing organization in Tulsa, OK, to identif...

Job Title: Project Billing Accountant Location: Pittsburgh, PA Type: Direct Hire Contractor Work Model: Onsite with Hybrid after training Overview The Project Billing Accountant is responsible for providing billing support to assigned functional areas ...

System One is working with a local company to find a Sr Project Engineer. Project Engineer Take the lead on high-level development projects, serving as the primary technical authority throughout the sales and execution lifecycle Respond to advanced cus...

Job Title: HR Manager Location: Tulsa, OK Type: Direct Hire Compensation: $100-130K Contractor Work Model: Onsite – onsite System One has partnered with a growing manufacturing organization in their search for an experienced Human Resources Manager to ...

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...

Job Title: Administrative Assistant Location: Tulsa, Oklahoma Type: Contract Compensation: $18.00 Contractor Work Model: Onsite – onsite Responsibilities Maintain accurate entry and management of the customer database, including data entry and updates ...

Job Title: Accounting Clerk Location: Houston, Texas Type: Contract To Hire Compensation: $25.00 per hour Contractor Work Model: Hybrid – onsite and remote Hours: 40.0 hours per week Security Clearance: Not specified Responsibilities Support day-to-day...

System One is seeking a professional and organized Administrative Assistant for a valued client in Tulsa. This is a full-time opportunity with a stable schedule and a supportive team environment. Schedule: Monday–Friday, 8:00 AM – 5:00 PM Pay: $19–$22/...

System One is seeking a friendly and organized Medical Scheduler / Front Desk Receptionist for a busy healthcare client in Tulsa. This is a great opportunity to join a patient-focused team in a professional medical office environment. Schedule: Monday–...

Job Title: Application Developer Location: Tulsa, Oklahoma Work Model: Onsite Responsibilities Provide application support and maintenance for mobile payment platforms, ensuring system uptime and performance. Troubleshoot and resolve production inciden...

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...

Job Title: Cocoa FP&A Analyst Location: Hershey, Pennsylvania Type: Contract Contractor Work Model: This is a remote U.S.-based opportunity; however, due to the reporting structure and regular interaction with a manager in Switzerland, availability dur...

Position: SAP Capital Project Closeout Analyst Location: Denver, CO Work Arrangement: Onsite: Tuesday–Thursday Contract Duration: 12-Months Pay Rate: $48.50/hr. W-2 Position Summary The SAP Capital Project Closeout Analyst – Gas Portfolio supports the ...

Overview System One is working with a manufacturer in the Tulsa area to place a Structural Fabrication Supervisor. Responsibilities Supervise daily fabrication operations, including welders and fitters Schedule manpower and assign work based on the mas...