Sr. Mechanical Engineer

Primary Talent Partners has a new contract opening for a Sr. Mechanical Engineer to join a multinational energy and gas company in Rockford, IL. Pay

$53.50 - $58.50/hr; W2 contract, no PTO, no Benefits. ACA-compliant supplemental package available for enrollment. Candidates must be legally authorized to work in the United States and must be able to sit on Primary Talent Partners W2 without sponsorship.

9 am - 3 pm (central)

We are looking for a driven and technically-skilled Mechanical Engineer to join our team. In this role, you'll take ownership of the complete lifecycle of critical mechanical equipment used in gas processing. From initial design and specification to commissioning and ongoing support, you'll ensure our systems operate safely, efficiently, and reliably. You will be a key player in multidisciplinary project teams, contributing your expertise to build and improve our state-of-the-art facilities.

This position is a perfect fit for an engineer who enjoys both technical design and hands‑on project execution.

• Equipment Lifecycle Management:
  Take full responsibility for the specification, selection, procurement, commissioning, and maintenance of mechanical equipment, ensuring it meets project and process requirements.
• Code Compliance:
  Ensure all pressure vessel and piping designs, modifications, and repairs adhere to relevant industry standards, particularly ASME Section VIII, Division 1 and ASME B31.3.
• Project Execution:
  Collaborate with other engineering disciplines (Process, Electrical, Controls) to design, install, and commission new equipment and systems safely and efficiently.
• Technical Support:
  Serve as a subject matter expert for key rotating equipment, providing engineering support for troubleshooting, maintenance strategies, and reliability improvements.
• Project Engineering:
  Assist in managing project scope, schedules, and budgets to ensure successful project delivery from concept to completion.

• Bachelor’s degree in Mechanical Engineering or a related field plus 8 years experience. Master’s plus 6 years.
• Qualifications (IE SAP Experience, Excel Knowledge, Any Certifications, Years of Experience in Certain Fields).

• Bachelor’s degree in Mechanical Engineering or a related field.
• 8+ years of experience in an industrial, manufacturing, or chemical processing environment.
• Working knowledge of ASME Boiler and Pressure Vessel Code (Section VIII, Div.
  1) and Process Piping code (B31.3).
• Demonstrated experience with industrial rotating equipment and mechanical systems.
• Strong leadership skills with ability to motivate cross‑functional teams.
• Excellent problem‑solving, communication, and interpersonal skills.
• Proven “hands‑on” mechanical and troubleshooting ability.
• Experience in environmental sustainability industry such as biogas, renewable energy or waste treatment.
• Working knowledge of commercial agreements and customer relations preferred.
• Ability to travel (up to 50%).
• Work in industrial environments.
• Must be legally authorized to work in the United States without sponsorship.
• Able to excel in a fast‑paced, dynamic environment, and has the strategic agility to adapt to changing priorities.

• Direct design or operational experience with centrifugal blowers, oil‑flooded screw compressors, and/or industrial mixers.
• Experience in project engineering or project management, including cost and schedule management.
• Familiarity with the gas processing, oil and gas, or chemical industries.
• Military technical training.
• Knowledge of industrial gases and pipeline safety preferred.

Primary Talent Partners is an Equal Opportunity / Affluent Action employer committed to diversity in the workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, age, national origin, disability, protected veteran status, gender identity or any other factor protected by applicable federal, state, or local laws.

If you are a person with a disability needing assistance with the application or at any point in the hiring process, please contact us at i