Mechanical Engineer - Oil and Gas

Atwell, LLC; Dallas (TX); On-site; USD 90,000 - 145,000; Full time

Benefits offered by this job

Generous Paid Time Off

Flexible work schedules

Tenure Awards – Travel vouchers

Job summary

Atwell, LLC is hiring a mid-level Mechanical Project Engineer to support oil & gas, CO₂, hydrogen, and RNG pipelines and facilities. You’ll lead mechanical design from concept through construction, coordinating across disciplines to deliver safe and constructible solutions.

You will collaborate with project teams, interface with clients and regulators, and mentor junior staff while maintaining design quality and schedules. A PE license is preferred/required where applicable.

Qualifications

• Bachelor’s degree in Mechanical Engineering or related field.
• Professional Engineer (PE) license required (or ability to obtain promptly).
• Experience with piping design for large pipeline systems and facilities.
• Experience interfacing with clients, EPCs, vendors, and regulators.

Responsibilities

• Lead and support project teams on assigned tasks; provide technical guidance and implement design changes.
• Interface with clients, EPCs, vendors, and regulators; communicate scope, progress, risks, and decisions.
• Coordinate with civil/structural/electrical/instrumentation teams for integrated designs.
• Mentor junior engineers/designers; contribute to mechanical best practices and QA/QC.
• Travel to offices, vendor facilities, and jobsites as needed.

Skills

Piping design

Facility mechanical systems

Client coordination

Project leadership

Mentoring

Education

Bachelor's degree in Mechanical Engineering

PE license

Tools

AutoCAD

Bluebeam

Microsoft Office

Plant 3D / CADWorx / AVEVA

Job description

Atwell, LLC is a bold leader in the consulting, engineering, and construction services industry, delivering a broad range of creative solutions to clients in the real estate & land development, and energy markets. We have a strong national presence and a diverse, award-winning project portfolio. Atwell is a privately owned company, with 2,000+ passionate team members across 75+ locations and growing!

Atwell, LLCis a proud recipient of the following 2025 awards:

• Ten consecutive years in a row as a “Best Place to Work” by Zweig Group (#11)
• Recognized as #70 in the ENR Top 500 Design Firms, ranked in every region
• Recognized in Crain's “Fast 50” as one of the fastest-growing companies (#14)
• Recognized as the 2025 ENR Design Firm of the year for the southeastern US

Position Snapshot

Atwell is hiring a mid-level Mechanical Project Engineer (PE) to support oil & natural gas, CO₂, hydrogen, and RNG pipeline and facility projects. This role focuses on mechanical design and project execution for large pipeline systems and facilities (meter stations, compressor stations, terminals, valve sites, pigging facilities). You’ll work from concept through construction/commissioning, coordinating across disciplines to deliver safe, compliant, and constructible solutions.

Essential Functions

• Lead and support project teams on assigned tasks; provide technical guidance and implement client-requested design changes.
• Interface with clients, EPCs, vendors, and regulators; communicate scope, progress, risks, and design decisions.
• Coordinate with civil/structural/electrical/instrumentation/process teams to ensure integrated, constructible designs.
• Mentor junior engineers/designers; contribute to mechanical best practices, standards, and QA/QC.
• Travel to offices, vendor facilities, and jobsites as needed.

Education / Credentials

• Bachelor’s degree in Mechanical Engineering (or related discipline).
• Professional Engineer (PE) license required (or ability to obtain promptly per state requirements).

Day to Day

• Serve as the mechanical engineering lead or key contributor for pipeline and facility projects, including:
• Meter & regulator (M&R) stations, valve sites, pig launcher/receiver sites
• Compressor stations and station tie-ins
• Terminals, pump stations, and related facility upgrades/expansions
• Develop and own mechanical deliverables such as:
• Mechanical basis-of-design, design criteria, and equipment/system selections
• P&IDs, PFDs, line lists, and mechanical specifications (in coordination with process)
• Equipment data sheets and procurement packages (valves, meters, regulators, filters/separators, pumps, compressors packages interface, pigging components, heaters, coolers, heat exchangers)
• Piping isometrics, piping plans, tie-in packages, and installation details
• Perform/oversee engineering calculations and technical evaluations, including:
• Pressure design and code compliance
• Relief device sizing / overpressure protection support and coordination
• Hydraulic/line sizing coordination, equipment sizing support, and operating case reviews
• Support facility layout and integration:
• 3D model/design review participation as applicable; resolve clashes and support constructability
• Coordinate with structural/civil for foundation loads, pipe rack interfaces, and equipment anchorage

Preferred Tools & Experience

• Strong experience with piping design, facility mechanical systems, and field execution support.
• Familiarity with AutoCAD, Bluebeam, Microsoft Office; exposure to 3D tools (Plant 3D, CADWorx, AVEVA, or similar) is a plus.
• Consulting/EPC experience and comfort working to owner/operator standards.
• Experience supporting projects in operating facilities

Pay Range - $90,000 - $145,000 base + end of year bonus.

Disclaimer

While AI tools may support your application process, this role is built on human talent. Your judgment, experience, and character matter most, so we encourage you to showcase what makes you uniquely you.

Atwell Benefits:To attract and retain the best professionals in the industry, we aim to provide an excellent working environment and a progressive benefits program designed to support your personal and professional needs.

Work/Life:

• Generous Paid Time Off
• Flexible work schedules are available for some positions
• Tenure Awards — Travel Vouchers to see the world based on your travel preferences

Compensation:

• Competitive Compensation packages
• Annual bonuses, spot bonuses and peer recognition awards
• 401K match - 1:1 up to 4% of compensation
• Tuition Assistance
• Student Loan Repayment
• Paid Licensing / Certification Fees and Renewals
• Financial Rewards for Obtaining Licensure
• Employee Referrals
• Annual Wellness Reimbursement for anything wellness related (Gym memberships, fitness tracker, home gym equipment, etc.)
• Dependent Care Match
• Medical (BC/BS), Dental (Delta), and Vision (VSP)
• Family Planning & IVF Benefits
• Pet Insurance
• Health Savings Account & Flex Spending Account options
• Employer paid LTD, STD, and life insurance
• Metlife Supplemental Benefits covering accident, hospitalization, and critical illness
• Member Assistance Program (MAP) with complimentary counseling sessions, legal benefits, financial consultations, and work/life referral services

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in Atwell, LLC’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A \"disabled veteran\" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A \"recently separated veteran\" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An \"active duty wartime or campaign badge veteran\" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An \"Armed forces service medal veteran\" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

We use Greenhouse’s AI-powered Talent Matching tool to compare your application against our job requirements.