Bayer Posted September 1, 2026

Mechanical Engineer Co-Op (Chesterfield, Missouri, US)

Chesterfield, United States Type not listed
Manufacturing & CMC Intern/Fellow/Postdoc
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Bayer is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

About this opportunity

At Bayer we’re visionaries, driven to solve the world’s toughest challenges and striving for a world where 'Health for all Hunger for none’ is no longer a dream, but a real possibility. We’re doing it with energy, curiosity and sheer dedication, always learning from unique perspectives of those around us, expanding our thinking, growing our capabilities and redefining ‘impossible’. There are so many reasons to join us. If you’re hungry to build a varied and meaningful career in a community of brilliant and diverse minds to make a real difference, there’s only one choice.

Mechanical Engineer Co-Op

As a Mechanical Engineer Co‑op, you will work with a team to provide mechanical engineering designs for large‑scale capital projects and support multiple sites and projects concurrently; you will collaborate closely with other Mechanical Engineers and project team members at a local level to help deliver safe, reliable, and efficient manufacturing operations; this is a hands‑on learning opportunity where you apply your academic knowledge to real‑world engineering challenges in a dynamic, diverse environment.

YOUR TASKS AND RESPONSIBILITIES

The primary responsibilities of this role are to:

Prepare project mechanical specifications and summaries for design packages;

Review equipment vendor drawings and support construction activities at manufacturing sites;

Support engineers in the development of mechanical equipment specifications and construction drawings;

Contribute to the development of equipment checkout plans and support project checkout and startup at manufacturing sites;

Apply basic project management skills to help coordinate tasks, timelines, and deliverables;

Collaborate with other Mechanical Engineers and project team members to solve problems and implement practical engineering solutions.

WHO YOU ARE

Bayer seeks an incumbent who possesses the following:

Required Qualifications:

Pursuing a Bachelor’s degree in Mechanical Engineering or Industrial Engineering;

Must have completed at least 1 year of a Bachelor's program.

Preferred Qualifications:

Minimum 3.0 cumulative GPA on a 4.0 scale;

General mechanical aptitude and interest in applying engineering principles to real‑world projects;

Strong written and oral communication skills;

Good problem‑solving skills and a high degree of personal initiative;

Excellent organization and planning skills with the ability to manage multiple tasks;

Ability to work well in a team environment and within a diverse culture;

No travel limitations.

Employees can expect to be paid a salary of approximately between $26.00 to $31.50. Additional compensation may include a bonus or commission (if relevant).  Additional benefits include health care, vision, dental, retirement, PTO, sick leave, etc..  This salary (or salary range) is merely an estimate and may vary based on an applicant’s location, market data/ranges, an applicant’s skills and prior relevant experience, certain degrees and certifications, and other relevant factors.

YOUR APPLICATION       Bayer offers a wide variety of competitive compensation and benefits programs. If you meet the requirements of this unique opportunity, and want to impact our mission Health for all, Hunger for none, we encourage you to apply now. Be part of something bigger. Be you. Be Bayer.

To all recruitment agencies: Bayer does not accept unsolicited third party resumes.

Bayer is an Equal Opportunity Employer/Disabled/Veterans

Bayer is committed to providing access and reasonable accommodations in its application process for individuals with disabilities and encourages applicants with disabilities to request any needed accommodation(s) using the contact information below.

Equal Opportunity Employer Statement: Notice for U.S. Visitors: All information on this site is subject to compliance with local rule and regulations as they may vary from time to time and across different geographies, including, without limitation, U.S. Executive Orders.       Bayer is an E-Verify Employer.               Location: United States : Missouri : Chesterfield      Division: Crop Science     Reference Code: 878570          Contact Us     Email: hrop_usa@bayer.com  ]]>

Job details

Seniority
Intern/Fellow/Postdoc
Function
Manufacturing & CMC
Therapeutic area
Not listed
Location
Chesterfield, United States
Employment type
Not listed

How this role compares

Computed from every other active Manufacturing & CMC role in our database, not just this employer's listings.

We currently track 420 comparable Intern/Fellow/Postdoc Manufacturing & CMC roles across 58 biopharma companies.

420Comparable roles tracked
386Currently active
58Companies hiring similar roles
26Countries represented

Salary context

93 of 420 peers report a salary range (USD, annualized)

Peers share this role's job function and a matching or adjacent seniority level -- not necessarily the same therapeutic area or country.

This roleSubject Not listed on this posting
Lowest disclosed · Warehouse Associate I (M-F 11am-7:30pm) · AbbVie $16/hr – $29/hr (≈ $33,280–$60,320/yr)
Highest disclosed · Advisor, Bioanalytical Chemistry · Lilly $168,000/yr – $268,400/yr
Peer group range $46,800 – $218,200 (median $82,050)

Where these roles are based

Top locations among the 420 comparable roles

United States252
France47
Germany30
Belgium16
Ireland16
Netherlands9

+ 20 more countries

Seniority mix

420 of 420 peers have a known seniority level

Intern/Fellow/Postdoc258
Associate162

Therapeutic area mix

6 of 420 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Vaccines & Infectious Disease6

Similar opportunities

The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

60%similar
Lilly Indianapolis, Indiana, United States of America Intern/Fellow/Postdoc
Same function Same seniority Same country
60%similar
Lilly Indianapolis, Indiana, United States of America Intern/Fellow/Postdoc
Same function Same seniority Same country
60%similar
Merck West Point, Pennsylvania, United States Intern/Fellow/Postdoc
Same function Same seniority Same country
60%similar
Merck Trenton, New Jersey, United States Intern/Fellow/Postdoc
Same function Same seniority Same country
60%similar
AbbVie North Chicago, IL Intern/Fellow/Postdoc
Same function Same seniority Same country
60%similar
AbbVie North Chicago, IL Intern/Fellow/Postdoc
Same function Same seniority Same country

Notify me about similar jobs

Get an email when we spot other openings like this one – same job function, comparable seniority, roles you'd actually want to see.

Or follow a whole field: get every new Manufacturing & CMC job in the United States, and choose locations and companies.

How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

60%
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Function Therapeutic area Seniority Country
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Function Therapeutic area Seniority Country
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Function Therapeutic area Seniority Country
Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.