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Salary
$100k – $131k per year
Location
In office (United States)
Seniority
Senior · 6+ years exp
Visa
No sponsorship (stated in the posting)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 10, 2026. First seen by Alion on Sep 13, 2026. Fermilab scores B on the Alion truth index.

Overview
Company
Impact
Profile match

The expected hiring range for this position is:

$99,500.00-$130,900.00.

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 the scope and responsibilities of the position, qualifications of the selected candidate, business considerations, internal equity, and external market pay for comparable jobs.

This position is not eligible for sponsorship assistance.

About the Role:

We are seeking a Mechanical Engineer to become the Main Injector/Recycler (MI/RR) Primary Machine Engineer who is a collaborator by nature and who seeks out the latest technology and tools to design, fabricate, test, install and operate components and systems for our particle accelerators.

What your day-to-day as a Mechanical Engineer at Fermilab will look like:

  • You will serve as Primary Machine Engineer for the MI/RR machines and work with MI/RR machine stakeholders and scientists in the planning, implementation, and documentation of the installation of upgrades and repairs to the mechanical systems that support this accelerator. Oversee engineers, drafter/designers and technicians in their tasks.

  • Provide support to future accelerators such as PIP-II and LBNF in the mechanical design, analysis, fabrication/construction, and installation of devices and equipment.

  • Utilize fundamental engineering concepts and principles to complete assignments and develop familiarization with the Laboratory’s method of project engineering, from the design stage through review, procurement, fabrication, installation, test and operation.

  • Participate in and leading efforts involving general mechanical-system design, mechanical stress analysis, and thermal analysis.

  • Designing and planning the lifting/rigging of heavy components which will involve material handling equipment and techniques.

  • Overseeing and directing the activities of early-career engineers, technicians, and drafters/designers on their projects.

  • Direct the activities of co-op engineering students and interns on his/her projects.

  • Abide by and be responsible for performing all duties in accordance with all environmental, health and safety regulations and practices pertinent to this position.

Skills and Attributes for Success:

  • Bachelor’s in an applicable Engineering discipline from an ABET accredited institution with 6+ years of engineering experience, or a Master’s in an applicable Engineering discipline from an ABET accredited institution with 4+ years of engineering experience.

  • Demonstrated ability to communicate expectations clearly using verbal and written practices with customers / stakeholders and with team members

  • Demonstrated ability to lead a team in a project (technical or non-technical) and installation activities

  • Demonstrated ability to work effectively under the requirements of schedules and shifting priorities

  • Demonstrated ability to perform mechanical stress and deflection calculations

  • Demonstrated ability to create and read mechanical drawings

  • Demonstrated knowledge of machine shop practices and techniques for fabricating complex and intricate hardware

  • Must have strong computing skills including preparing and documenting engineering calculations, creating 3D models and 2D drawings using CAD software, FEA analyses, data presentation, and project management activities (cost estimates, schedules)

  • Experience with design, assembly and operation of high and ultra-high vacuum systems is desirable

  • Knowledge of welding and brazing practices (e.g. TIG, MIG and electron beam welding process, oven brazing) as related to manufacturing and fabrication of structures is desirable

  • Knowledge of materials, metallurgy and radiation damage of materials is desirable

  • Knowledge in the design and planning of lifting/rigging of heavy components which involve material handling of equipment and techniques is desirable

  • Use of geometric dimensioning and tolerancing on drawings is desirable

  • Planning and implementing preventative maintenance programs for a system’s equipment is desirable

  • Skills in Siemens Teamcenter and NX is desirable

  • Skills in ANSYS or NASTRAN is desirable

  • Experience in specifying, designing, fabrication, and operations of robotics systems is desirable

Physical Activity and Work Conditions

  • HUMAN FACTORS: Heights, mental concentration, sitting, standing, tight work schedule, visually demanding.

Work Arrangement:

Please note that the described work arrangement is subject to change based on business needs and is not guaranteed to be final.

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

Benefits/Perks:

Fermilab offers a competitive and comprehensive benefits program, including:

  • Medical, Dental, Vision and Flexible Spending Accounts

  • Paid time off

  • Life insurance

  • Short and Long-term disability insurance

  • Retirement benefits

  • Onsite day care

Why Fermilab:

Fermilab is America’s premier laboratory for particle physics and accelerator research, funded by the U.S. Department of Energy. We support discovery science experiments in Illinois and locations around the world, including deep underground mines in South Dakota and Canada, mountaintops in Arizona and Chile, CERN in Europe and the South Pole.

Pre-Employment Screening:

Drug-Free Workplace & Pre-Employment Screening

Fermilab is dedicated to fostering a safe, productive and drug-free environment. An offer of employment is contingent upon the successful completion of a background check and drug screening.

HSPD-12

In accordance with Homeland Security Presidential Directive 12 (HSPD-12) new employees are required to obtain and maintain a HSPD-12 Personal Identity Verification (PIV) Credential. To obtain this credential, new employees must successfully complete and pass a federal background check investigation. This investigation includes a declaration of illegal drug activities, including use, supply, possession, or manufacture. This includes marijuana and cannabis derivatives, which are still considered illegal under federal law, regardless of state laws. Failure to obtain or maintain such government access authorization could result in the withdrawal of a job offer or future termination of employment.

Foreign Government Sponsored Activities

Fermilab employees, and certain guest researchers and contractors, are subject to particular restrictions related to participation in Foreign Government Sponsored or Affiliated Activities, as defined and detailed in United States Department of Energy Order 486.1A. Such individuals will be asked to disclose any participation for review by Fermilab's Office of General Counsel.

REAL-ID Requirement for access to Fermilab Campus

Fermilab requires all members of the public to produce a REAL-ID, or equivalent, to access the Fermilab Campus for interviews or career events. A list of acceptable forms of ID can be found here: https://get-connected.fnal.gov/wp-content/uploads/2021/09/REALID-Documents.pdf. If a candidate is selected for an interview but does not possess any of the equivalent documents, we may schedule a virtual interview.

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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