Senior Mechanical Engineer

Hunt Guillot & Associates (HGA); The Woodlands (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

Hunt Guillot & Associates (HGA) is seeking a Senior Mechanical Engineer to lead design and execution of mechanical systems for complex industrial projects in The Woodlands, TX. You will perform detailed calculations, create drawings, and support construction and procurement activities.

The role requires 8–15 years in mechanical design for Oil & Gas, Refinery, or Chemical sectors, with PE licensure preferred or pursuing it. On-site work and collaboration across disciplines are essential.

Qualifications

• ABET-accredited Bachelor’s degree in Mechanical Engineering.
• Professional Engineering license preferred; licensure willingness if not currently held.
• 8–15 years of mechanical design experience in oil, gas, refinery or chemical industries.
• Strong understanding of ASME, API, piping codes, PFDs and P&IDs.
• Experience developing equipment specs and reviewing vendor data.

Responsibilities

• Lead the mechanical design process from concept through detailed engineering with cross-discipline collaboration.
• Estimate and track engineering effort and resources for projects.
• Perform field surveys to optimize equipment layout and safety.
• Size equipment, specify piping, and perform hydraulic/stress calculations.
• Develop and review technical docs; support procurement with material take-offs and vendor packages.

Skills

Mechanical design

Piping design

Hydraulic calculations

3D modeling

Vendor data review

MS Office

Education

ABET-accredited B.S. in Mechanical Engineering

PE license preferred

Tools

MS Office

Job description

Position Overview

We are seeking a Senior Mechanical Engineer to lead and support the design and execution of mechanical systems for complex industrial projects. This role involves performing detailed engineering calculations, developing design drawings, collaborating on 3D modeling, and supporting construction and procurement activities. The ideal candidate will bring strong technical expertise, leadership skills, and a commitment to delivering high-quality engineering solutions.

Key Responsibilities

Lead and guide the mechanical design process from concept through detailed engineering, collaborating with engineers and designers to ensure high-quality deliverables.

Estimate and track engineering effort and resources required for assigned projects, supporting effective planning and execution.

Participate in field surveys to support optimal equipment layout and ensure safety and operational efficiency.

Perform and oversee mechanical design tasks including equipment sizing, piping specifications, and hydraulic/stress calculations.

Develop and review technical documentation such as equipment specifications, data sheets, and vendor packages; support procurement with material take-offs and technical evaluations.

Review vendor data and ensure compliance with design requirements and project standards.

Collaborate in multi-discipline design reviews and squad checks to ensure integration across engineering disciplines.

Coordinate with the Project Manager to maintain project schedules, budgets, and scope alignment.

Qualifications

• Bachelor’s degree in Mechanical Engineering from an ABET-accredited university or college.
• Mid-stream experience is highly preferred.

Professional Engineering (PE) license preferred; candidates without licensure should demonstrate a willingness to pursue it.

8-15years of experience in mechanical design engineering, preferably within the Oil & Gas, Refinery, or Chemical industries.

Strong understanding of engineering principles, design standards, and relevant codes (ASME, API, piping codes, PFDs, P&IDs).

Experience developing equipment specifications, performing design calculations, and reviewing vendor data.

Familiarity with engineering software and tools; proficiency in MS Office (Excel, Word, Outlook) required.

Prior experience with a consulting engineering firm is a plus.

Strong communication and collaboration skills with the ability to work effectively in multidisciplinary teams.

Must be authorized to work in the U.S. without current or future sponsorship.

On-site role; candidates must be able to commute to The Woodlands, TX.

Equal Opportunity Employer/Veterans/Disabled