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Cornerstone Energy Services

Principal Structural Engineer

Portland, ME, United States
Worcester, MA, United States
Plymouth, MA, United States

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Job details

Posting language: English
Posted: Nov 4, 2026

Original job description

About Cornerstone Energy Services

Cornerstone Energy Services, Inc. specializes in engineering, survey, and land solutions for the energy infrastructure sector. From initial concept through project completion, we provide comprehensive services including civil, process, mechanical, and I&E engineering; project management; survey and mapping; and right-of-way acquisition.

We collaborate closely with developers and operators of oil and gas pipelines and electric transmission systems, supporting both extensive linear projects and site-specific developments. Our work is guided by three core values:

Safety – protecting the public, our clients, and our team
Advocacy – prioritizing the best interests of our clients
Integrity – upholding professionalism and accountability in every aspect of our operations

The Senior Civil/Structural Engineer leads civil and structural design for natural gas and LNG facility projects, from conceptual studies through construction and commissioning, and owns the technical quality of the civil/structural discipline's work.

Applicants must be legally authorized to work in the United States at the time of application on a full-time basis without the need for employer-sponsored work authorization now or in the future. Candidates who qualify for TN classification may apply but are responsible for securing and maintaining their own work authorization.

ESSENTIAL FUNCTIONS

Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

· Serve as civil/structural discipline lead on multi-discipline project teams, owning the technical direction and quality of the discipline's work. · Act as a trusted technical advisor to clients, leading technical discussions and resolving design issues. · Define civil/structural scopes of work, man-hour estimates, and schedules for proposals. · Manage discipline budget and schedule, and report status to project managers. · Set the design approach for new, retrofit, and life-extension projects at LNG peak shaving plants, gate and regulator stations, and related gas infrastructure. · Direct the development of design packages, including site and grading plans, stormwater management, equipment foundations, pipe racks and supports, platforms, buildings and enclosures, and secondary containment. · Lead or perform complex structural analyses, such as dynamic equipment foundations, LNG containment structures, and condition assessments of aging structures. · Define geotechnical and survey scopes, and direct how their findings are applied to design. · Resolve interdisciplinary design issues with mechanical, piping, process, and electrical leads. · Represent the civil/structural discipline in design and constructability reviews. · Lead permitting strategy and represent projects before local, state, and federal agencies. · Lead structural inspections and field assessments at operating facilities and resolve complex field issues during construction. · Guide junior engineers and designers as they develop drawings, calculations, and specifications, then perform senior technical review of the finished deliverables. · Seal drawings and calculations as Professional Engineer of record. · Champion safe work practices on project teams and at client sites. · Mentor engineers, EITs, and designers on technical skills, codes, and progress toward professional licensure. · Develop internal standards, design guides, and lessons learned.

WORK ENVIRONMENT

Duties are performed in office and field settings.
Office work may include prolonged seated tasks, extended keyboarding, and use of computer screens.
Field settings may include work outdoors and on construction sites during all weather conditions.
May be requested to work overtime and weekends.
Position may require travel (up to 75%); valid driver’s license and acceptable DMV record required.

PHYSICAL REQUIREMENTS

The employee is regularly required to stand, walk, use stairs, use hands, reach, talk and hear.
The employee must frequently lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.
Specific vision abilities required by this job include close vision, distance vision, depth perception, and the ability to adjust focus.

MINIMUM QUALIFICATIONS

KNOWLEDGE, SKILLS AND ABILITIES

· Bachelor of Science in Civil or Structural Engineering from an ABET-accredited program. · Professional Engineer (PE) license in at least one state, with the ability to obtain licensure in other states where Cornerstone works. · 10+ years of progressive civil/structural engineering experience, including at least 5 years in oil and gas, natural gas utility, LNG, petrochemical, or similar industrial facilities. · Demonstrated experience designing foundations and structures for industrial process equipment. · Experience leading the civil/structural discipline on projects from design through construction support. · Ability to obtain and maintain client-required site access credentials, safety training, and drug and alcohol testing.

PREFERRED QUALIFICATIONS

· Direct experience at LNG peak shaving, satellite LNG, or liquefaction facilities in the Northeast. · Experience designing foundations for vibrating equipment such as compressors and pumps. · Experience working with Northeast gas utilities and their engineering standards. · Master's degree in Civil or Structural Engineering.