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Principal Mechanical Engineer

Job in Batavia, Kane County, Illinois, 60510, USA
Listing for: Fermilab
Full Time position
Listed on 2026-05-25
Job specializations:
  • Engineering
    Engineering Design & Technologists, Systems Engineer
Salary/Wage Range or Industry Benchmark: 125000 - 150000 USD Yearly USD 125000.00 150000.00 YEAR
Job Description & How to Apply Below

The expected hiring range for this position is: $-$. Please note that the pay range information is a general guideline only. The pay offered to a selected candidate will be determined based on factors such as the scope and responsibilities of the position, qualifications of the selected candidate, business considerations, internal equity, and external market pay for comparable jobs.

About the Role

The Fermilab Infrastructure Services Division (ISD) is seeking a Principal Mechanical Engineer. This individual is responsible for major, complex, high-level engineering projects requiring engineering creativity in developing innovative concepts and techniques. The Principal Mechanical Engineer leads and contributes to projects in areas such as design, design review, procurement, manufacture, installation, test, and initial operations of a project with extensive & diversified engineering requirements in compliance with all applicable local, state, and federal regulations, requirements and standards, and all Department of Energy (DOE) orders.

This role may oversee sub-contractors or supervise/ manage an engineering group/department.

Day-to-Day Responsibilities
  • Analyze data and perform engineering calculations.
  • Develop specifications, designs, and documents for major and technically complex, high-level, and highly visible engineering projects and design solutions. Work involves a variety of complex and advanced engineering techniques.
  • Plan and/or lead large or complex projects from inception to completion and bring them to operating status. Estimate manpower, schedules work, coordinate and direct technicians.
  • Provide technical direction to draftsmen, designers, engineering associates, technicians, or less senior engineers. Coordinate and/or supervise technicians and other engineers and sub-contractors. May manage the activities of engineering groups or departments.
  • Identify problems or tasks requiring engineering solutions and provide a thorough analysis of alternatives.
  • Participate in procurement, as well as manufacture, installation, testing, and operation.
  • Assist or lead in the development of cost estimates, as well as the monitoring and/or management of budgetary obligations.
  • Review and approve work before hardware and financial resources are committed, ensuring conformance to specifications and cost/time constraints.
  • Enhance the national and international presence of projects or the lab through participation in and collaboration on project reviews, as well as participation in technical conferences and publication.
  • Serve on safety panels, review committees, and other subcommittees as assigned. May serve as chair of subcommittee(s) or division/section committees.
  • Contribute to setting lab-wide engineering policies, safety standards or technical standards.
  • May provide supervision or leadership of a team including hiring, promotions, performance reviews, training, disciplinary actions, team exits, and other duties as assigned.
  • Perform other duties as assigned by supervisor.
  • Abide by and is responsible for performing all duties in accordance with all environmental, health and safety regulations and practices pertinent to this position.
Essential Skills and Competencies

Bachelor’s in an applicable Engineering discipline from an ABET accredited institution with 8+ years of engineering experience, or a Master’s or PhD in an applicable Engineering discipline from an ABET accredited institution with 6+ years of engineering experience.

Applicable Knowledge,

Skills and Abilities

Required
  • In-depth knowledge and proficiency in application of theories, concepts, principles, and methodology for the engineering discipline.
  • Possess extensive project planning skills in developing specifications and documents for major and technically complex, high-level, and highly visible engineering projects and engineering design solutions.
  • Ability to perform a variety of complex and advanced engineering techniques.
  • Experience with AutoCAD required, and/or Revit is a plus.
  • Professional Engineer licensure in the State of Illinois is desired.
Work Arrangement

Onsite:
This is an onsite role, and the candidate must be able to work from our Batavia office.

Benefits/Perks
  • Medical, Dental, Vision and Flexible Spending Accounts
  • Paid time off
  • Life insurance
  • Short and Long-term disability insurance
  • Retirement benefits
  • Onsite day care
Equal Opportunity Statement

Fermilab is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, age, national origin, disability, veteran status, genetic information, and other legally protected categories.

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