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Seasonal Principal Structural Engineer Jobs (NOW HIRING)

Technical Leadership & Structural Engineering * Lead the preparation and review of construction drawings, specifications, and structural calculations for new and existing structures. * Oversee ...

Principal Structural Engineer

Chicago, IL · On-site

$130K - $195K/yr

Structural Engineering Expertise (Technical Depth) Expert knowledge of commercial and residential structural systems, including gravity/lateral systems across common materials (steel, concrete ...

Principal Structural Engineer

Chicago, IL · On-site

$130K - $195K/yr

Technical Leadership & Structural Engineering * Lead the preparation and review of construction drawings, specifications, and structural calculations for new and existing structures. * Oversee ...

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Seasonal Principal Structural Engineer information

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$43K

$103.5K

$192.5K

How much do seasonal principal structural engineer jobs pay per year?

As of Jun 11, 2026, the average yearly pay for seasonal principal structural engineer in the United States is $103,463.00, according to ZipRecruiter salary data. Most workers in this role earn between $81,000.00 and $122,500.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Seasonal Principal Structural Engineer, and why are they important?

To thrive as a Seasonal Principal Structural Engineer, you need advanced knowledge of structural engineering principles, a relevant engineering degree, and a Professional Engineer (PE) license. Expertise in structural analysis software (such as SAP2000 or ETABS), CAD tools, and relevant building codes is essential. Strong leadership, problem-solving, and communication skills set standout professionals apart in managing seasonal projects and multidisciplinary teams. These skills ensure safe, efficient project delivery and effective team coordination during peak workload periods.

What does a Seasonal Principal Structural Engineer do?

A Seasonal Principal Structural Engineer is a senior-level engineer who leads and manages structural engineering projects during peak periods or specific seasons when demand is high. They are responsible for overseeing the design, analysis, and evaluation of structures, ensuring safety, compliance with regulations, and overall project success. Their duties often include supervising teams, coordinating with clients and contractors, and providing technical guidance on complex structural issues. The 'seasonal' aspect means they are typically employed during certain times of the year, such as construction booms or periods with specific project needs.

What is the difference between Seasonal Principal Structural Engineer vs Structural Engineer?

AspectSeasonal Principal Structural EngineerStructural Engineer
CredentialsTypically requires a PE license, advanced degrees, and extensive experienceUsually requires a PE license or engineering degree, less experience needed
Work EnvironmentLeads projects, oversees teams, and makes high-level decisions, often in consulting or design firmsPerforms design, analysis, and calculations under supervision, often in engineering firms or construction sites
Industry UsageUsed in consulting, design, and project management roles, often seasonal due to project cyclesCommon in daily engineering tasks, site inspections, and project support

The Seasonal Principal Structural Engineer typically holds a senior, leadership role with advanced credentials and oversees complex projects, often on a seasonal basis. In contrast, a Structural Engineer focuses on technical design and analysis, usually with less experience and responsibility. Both roles are essential in the structural engineering industry but differ in scope, responsibilities, and work environment.

What unique challenges might a Seasonal Principal Structural Engineer face during peak project periods?

As a Seasonal Principal Structural Engineer, you may encounter increased workloads and tighter deadlines during peak construction or design seasons. Managing multiple projects simultaneously can require strong organizational and prioritization skills, as well as effective delegation to junior team members. Collaboration with other departments, such as architects and contractors, becomes more frequent and critical to ensure projects stay on track. Adapting quickly to shifting project scopes and addressing unforeseen site issues are also common challenges. However, this role offers valuable opportunities to demonstrate leadership and enhance your project management experience.
More about Seasonal Principal Structural Engineer jobs
What cities are hiring for Seasonal Principal Structural Engineer jobs? Cities with the most Seasonal Principal Structural Engineer job openings:
What are the most commonly searched types of Principal Structural Engineer jobs? The most popular types of Principal Structural Engineer jobs are:
What states have the most Seasonal Principal Structural Engineer jobs? States with the most job openings for Seasonal Principal Structural Engineer jobs include:
Infographic showing various Seasonal Principal Structural Engineer job openings in the United States as of June 2026, with employment types broken down into 97% Full Time, and 3% Part Time. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $103,463 per year, or $49.7 per hour.

$121K - $185K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 13 days ago


Job description

Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the U.S. National Nuclear Security Administration (NNSA).  Our MISSION is to help ensure the security of the United States and its allies by providing high-hazard experimentation and incident response capabilities through operations, engineering, education, field, and integration services and by acting as environmental stewards to the Site's Cold War legacy.  Our VISION is to be the user site of choice for large-scale, high-hazard, national security experimentation, with premier facilities and capabilities below ground, on the ground, and in the air. (See NNSS.gov for our unique capabilities.) Our 2,750+ professional, craft, and support employees are called upon to innovate, collaborate, and deliver on some of the more difficult nuclear security challenges facing the world today.   

  • MSTS offers our full-time employees highly competitive salaries and benefits packages including medical, dental, and vision; both a pension and a 401k; paid time off and 96 hours of paid holidays; relocation (if located more than 75 miles from work location); tuition assistance and reimbursement; and more.  
  • MSTS is a limited liability company consisting of Honeywell International Inc. (Honeywell), Jacobs Engineering Group Inc. (Jacobs), and HII Nuclear Inc.
  • Bachelor's degree in an engineering program accredited by the Accreditation Board for Engineering and Technology (ABET) required for Civil, Mechanical and Electrical engineering degrees
    • Or, Calculus-based STEM bachelor's degree in engineering
    • Or, for Architects, Certification from the National Council or Architectural Registration Board (NCARB)
    • Or Professional Engineer license
  • Plus at least 9 years' relevant experience. Skill building experience must demonstrate either deeper technical specialization or additional cross-disciplinary knowledge; graduate research experience may be recognized.
  • Ability to interpret codes and standards applicable to the position.
  • The primary work location will be at the Losee Road facility in North Las Vegas, Nevada.
  • Work schedule for this position will be 4/10's, Monday - Thursday (subject to change).
  • Pre-placement physical examination, which includes a drug screen, is required. MSTS maintains a substance abuse policy that includes random drug testing.
  • Must possess a valid driver's license.

MSTS is required by DOE directive to conduct a pre-employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Applicants offered employment with MSTS are also subject to a federal background investigation to meet the requirements for access to classified information or matter if the duties of the position require a DOE security clearance. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause a clearance to be denied or terminated by DOE, resulting in the inability to perform the duties assigned and subsequent termination of employment. In addition, Applicants for employment must be able to obtain and maintain a DOE Q-level security clearance, which requires U.S. citizenship, at least 18 years of age. Reference DOE Order472.2, "Personnel Security". If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted.

Department of Energy Q Clearance (position will be cleared to this level). Reviews and tests for the absence of any illegal drug as defined in 10 CFR Part 707.4, "Workplace Substance Abuse Programs at DOE Sites," will be conducted. Applicant selected will be subject to a Federal background investigation, required to participate in subsequent reinvestigations, and must meet the eligibility requirements for access to classified matter. Successful completion of a counterintelligence evaluation, which may include a counterintelligence-scope polygraph examination, may also be required. Reference 10 CFR Part 709, "Counterintelligence Evaluation Program."

MSTS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability, veteran status or other characteristics protected by law. MSTS is a background screening, drug-free workplace.

Annual salary range for this position is: $121,867.20 - $185,848.00.

Starting salary is determined based on the position market value, the individual candidate education and experience and internal equity.

The Design Engineering Department is seeking a Principal Structural Engineerwith proven experience in the design and analysis ofnon-building structures. This includes concrete and steel infrastructure such as industrial platforms, misc. supports, equipment foundations, and related civil/structural works. The ideal candidate will be well-versed instructural concrete design, shallow foundations, and non-building steel structures, and will be comfortable taking projects from concept through construction. This includes preparation of calculations, reports, specifications, checking of drawings and field trips to the site. Work will need to be completed in accordance with NNSS procedures and Department of Energy (DOE) requirements.

Key Responsibilities

  • Perform structural analysis and design of reinforced concrete and structural steel systems fornon-building applications.
  • Design and detailconcrete foundations, retaining systems, tanks, pits, and specialty industrial structures.
  • Prepare engineering calculations, construction drawings, and technical specifications.
  • Review and sign drawings, calculations, and design documents as the responsible engineer of record.
  • Collaborate with multi discipline engineers, and contractors to ensure constructability and compliance with project requirements.
  • Conduct field inspections, site assessments, and provide engineering support during construction.
  • Ensure all work complies with applicable codes and standards (IBC, ACI, AISC, ASCE, etc.).
  • Devise solutions to highly complex technical problems of broad scope. Solutions may require resolving conflicting customer expectations and design requirements, utilizing unconventional technology and materials, and cross-disciplinary integration.
  • Interpret and adapt guidelines for specific cases.
  • Evaluate processes, procedures, and work instructions to improve performance.
  • Conduct or lead research; develops and designs new instrumentation, equipment, and procedures for testing and solving problems; presents papers; and keeps abreast of new technological developments, methods or materials, keeping management informed of important new advances.
  • Ensure deliverables comply with laws, codes, orders, and MSTS policies and procedures.
  • Perform other duties assigned by Management.