Marmon

Senior Mechanical Engineer

United States · Work style not stated · Full time

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About the role

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EmployerMarmon
LocationUnited States
Work styleWork style not stated
Employment typeFull time
Employer posted4 Aug 2026

Marmon Industrial Water LLC

As a part of the global industrial organization Marmon Holdings—which is backed by Berkshire Hathaway—you’ll be doing things that matter, leading at every level, and winning a better way. We’re committed to making a positive impact on the world, providing you with diverse learning and working opportunities, and fostering a culture where everyone’s empowered to be their best.

About Us
Marmon Industrial Water designs and manufactures advanced water and wastewater treatment solutions through our trusted brands, Graver Water Systems and Ecodyne. Our technologies serve some of the world’s most demanding industries — petrochemical, chemical, power generation, and heavy industrial plants. From raw water pretreatment and ion exchange to wastewater treatment, cooling, and oil/water separation, our systems play a critical role in keeping essential industries running efficiently and sustainably.

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The Opportunity
We are seeking a Senior Mechanical Engineer to join our Warren, NJ office. In this role, you will lead the mechanical design, analysis, and development of complex water and wastewater treatment systems and equipment. You will serve as a technical expert, mentor junior engineers and designers, and collaborate with cross-functional teams to deliver high-quality engineered solutions that meet client specifications, industry standards, and project schedules.

Responsibilities

The list below highlights the essential job responsibilities but is not exhaustive.

Lead the mechanical design of pressure vessels, piping systems, skids, and packaged equipment for industrial water treatment applications.

Review and check detailed drawings, general arrangements, P&IDs, fabrication details, and BOMs.

Select and specify equipment such as pumps, valves, and mechanical components to meet project and process requirements.

Enter and manage engineering data, parts, and BOMs within the company’s ERP system to support manufacturing and supply chain activities.

Ensure designs comply with ASME, ANSI, and other relevant codes and standards.

Perform and/ or reviews engineering calculations to support designs.

Collaborate with project managers, electrical engineers, and process engineers to ensure integrated system designs.

Provide technical leadership, guidance, and mentorship to junior engineers and designers.

Review vendor drawings and technical documentation to ensure alignment with project requirements.

Support manufacturing and field service teams during fabrication, assembly, testing, and commissioning.

Participate in design reviews, risk assessments, and continuous improvement initiatives.

Engage with clients and stakeholders to clarify requirements, resolve technical issues, and support project execution.

Qualifications

Bachelor’s degree in mechanical engineering (Master’s is an asset)

Minimum of 7+ years of relevant engineering experience.

Licensed as a Professional Engineer.

Knowledge of mechanical design codes and standards including ASME, AWWA, API.

Strong communication skills, capable of presenting technical information to both internal and external stakeholders clearly and concisely.

The ability to be a positive team player in a high paced environment working under tight deadlines.

Excellent problem-solving, communication, and organizational skills.

Ability to manage multiple projects and priorities in a fast-paced environment.

Capable of working independently, setting priorities, and meeting deadlines.

Additional Information

This role may require up to 10% travel within North America

Physical demands may vary and could include extended periods of standing and occasional lifting of objects.

Benefits

We support your well-being with comprehensive and easy-to-use benefits that you’ll be eligible to enroll in on your first day of employment. Here are some of the highlights:

Medical, dental, vision, and prescription drug coverage

Tax-advantaged health and dependent care spending accounts

Paid time off, holidays, and parental leave

Company-sponsored life insurance

401(k) with fully vested company match and potential for additional annual discretionary contribution to your account

Access to wellness programs, mental health resources, and telehealth services

Financial and retirement planning support

Pay Range:

$90,000 - $125,000

Learn more about Marmon Industrial Water at www.marmonindustrialwater.com.

Following receipt of a conditional offer of employment, candidates will be required to complete additional job-related screening processes as permitted or required by applicable law.

We are an equal opportunity employer, and all applicants will be considered for employment without attention to their membership in any protected class. If you require any reasonable accommodation to complete your application or any part of the recruiting process, please email your request to careers@marmon.com, and please be sure to include the title and the location of the position for which you are applying.

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