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Senior Mechanical Engineer Jobs in Oak Ridge, TN

Amentum

Senior Mechanical Engineer

Oak Ridge, TN · On-site

$99K - $131K/yr

Senior Mechanical Engineer Amentum is a global leader in advanced engineering and innovative solutions, supporting critical missions across defense, intelligence, energy, and civilian sectors. Our ...

Pae

Senior Mechanical Engineer

Oak Ridge, TN · On-site +1

$99K - $131K/yr

Senior Mechanical Engineer Amentum is a global leader in advanced engineering and innovative solutions, supporting critical missions across defense, intelligence, energy, and civilian sectors. Our ...

Ms Technology, Inc

Sr. Mechanical Engineer

Oak Ridge, TN · On-site

$90K - $119K/yr

The Sr. Mechanical Engineer will support scopes of work associated with components, assemblies, and machines within the project, providing technical expertise to help achieve program goals and ...

MS Technology, Inc.

Sr. Mechanical Engineer

Oak Ridge, TN · On-site

$90K - $119K/yr

The Sr. Mechanical Engineer will support scopes of work associated with components, assemblies, and machines within the project, providing technical expertise to help achieve program goals and ...

Mesa Associates, Inc.

Mechanical Engineer

Knoxville, TN · On-site

$85 - $130/hr

Mesa Associates is seeking a Mechanical Engineer to join our team, working closely with our ... Perform piping design, sizing, and routing tasks under senior engineer guidance * Prepare ...

Mesa Accosiates

Mechanical Engineer

Knoxville, TN · On-site

Mesa Associates is seeking a Mechanical Engineer to join our team, working closely with our ... Perform piping design, sizing, and routing tasks under senior engineer guidance * Prepare ...

Mesa Brand

Mechanical Engineer

Knoxville, TN · On-site

$85 - $110/hr

Mesa Associates is seeking a Mechanical Engineer to join our team, working closely with our ... Perform piping design, sizing, and routing tasks under senior engineer guidance * Prepare ...

New

Barge Design Solutions

Sr. Mechanical Engineer

Knoxville, TN · On-site

$99K - $131K/yr

Barge Design Solutions is seeking an experienced Senior Mechanical Engineer to join our Facilities Engineering Solution Center in either our Nashville or Knoxville, TN office. In this role, you will ...

Mesa Associates Inc.

Senior Mechanical Engineer

Knoxville, TN · On-site

$93K - $123K/yr

Mesa Associates is seeking a Senior Mechanical Engineer to serve as a true generalist across our Mechanical Engineering department, delivering projects for our Generation, Industrial, and Government ...

Mesa Accosiates

Senior Mechanical Engineer

Knoxville, TN · On-site

$93K - $123K/yr

Mesa Associates is seeking a Senior Mechanical Engineer to serve as a true generalist across our Mechanical Engineering department, delivering projects for our Generation, Industrial, and Government ...

Mesa Associates, Inc.

Senior Mechanical Engineer

Knoxville, TN · On-site

$93K - $123K/yr

Mesa Associates is seeking a Senior Mechanical Engineer to serve as a true generalist across our Mechanical Engineering department, delivering projects for our Generation, Industrial, and Government ...

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All JobsMechanical Engineer JobsSenior Mechanical Engineer JobsSenior Mechanical Engineer Jobs in Oak Ridge, TN

Senior Mechanical Engineer information

See Oak Ridge, TN salary details

$64.6K

$106.3K

$148.4K

How much do senior mechanical engineer jobs pay per year?

As of Sep 2, 2026, the average yearly pay for senior mechanical engineer in Oak Ridge, TN is $106,335.00, according to ZipRecruiter salary data. Most workers in this role earn between $90,700.00 and $119,700.00 per year, depending on experience, location, and employer.

What does a senior mechanical engineer do?

A senior mechanical engineer manages the research and manufacturing of mechanical devices and systems. Day to day responsibilities of a senior mechanical engineer include estimating manufacturing project costs and timelines, making recommendations on system efficiencies and safety, and performing general engineering duties such as the development and testing of machines. A senior mechanical engineer job is a leadership position and requires managerial experience and excellent communication skills.

What does a senior mechanical engineer do?

A Senior Mechanical Engineer is responsible for designing, developing, and overseeing the production of mechanical systems and devices. They lead engineering projects, solve complex technical problems, and may supervise junior engineers and other team members. Their work often involves using advanced software tools for modeling and analysis, ensuring compliance with industry standards, and communicating with clients and stakeholders. Senior Mechanical Engineers typically have several years of experience and play a key role in project planning and execution.

What are the key skills and qualifications needed to thrive as a senior mechanical engineer, and why are they important?

To thrive as a Senior Mechanical Engineer, you need a strong background in mechanical design, engineering analysis, and project management, usually supported by a bachelor's or master's degree in mechanical engineering and several years of industry experience. Proficiency with CAD software (such as SolidWorks or AutoCAD), FEA tools, and familiarity with relevant industry standards and certifications (like PE licensure) are typically required. Excellent problem-solving, leadership, and communication skills help you lead teams and collaborate effectively with cross-functional departments. These skills and qualifications are crucial for delivering innovative, reliable engineering solutions and successfully managing complex projects.

How does a senior mechanical engineer typically collaborate with cross-functional teams during a project?

As a Senior Mechanical Engineer, you’ll regularly work alongside professionals from disciplines such as electrical engineering, manufacturing, project management, and quality assurance. Effective collaboration involves participating in design reviews, aligning on technical requirements, and troubleshooting challenges that arise during development. You’ll often serve as a key technical liaison, ensuring that mechanical solutions integrate seamlessly with other systems and that project milestones are met on schedule. Strong communication and leadership skills are invaluable, as you’ll help guide both junior engineers and multidisciplinary teams toward shared goals.

What is the difference between Senior Mechanical Engineer vs Mechanical Designer?

AspectSenior Mechanical EngineerMechanical Designer
Required CredentialsBachelor's or Master's in Mechanical Engineering, Professional Engineer (PE) license often preferredAssociate's or Bachelor's in Mechanical Engineering or related field, certifications vary
Work EnvironmentDesign, analysis, project management, often in engineering firms or manufacturingDrafting, CAD modeling, product development, typically in design departments
Employer & Industry UsageEngineering firms, manufacturing, aerospace, automotiveProduct design companies, manufacturing, engineering consultancies

While both roles involve mechanical design, Senior Mechanical Engineers focus on project oversight, analysis, and technical leadership, whereas Mechanical Designers primarily handle CAD modeling and drafting tasks. The senior role requires more advanced credentials and experience, often with broader responsibilities in project management and engineering decisions.

How much do senior mechanical engineers get paid?

Senior mechanical engineers typically earn a median annual salary ranging from $85,000 to $130,000, depending on experience, location, and industry. They often have specialized skills in CAD software, project management, and engineering design, which can influence compensation levels.
More about Senior Mechanical Engineer jobs

What are the most commonly searched types of Mechanical Engineer jobs in Oak Ridge, TN?

The most popular types of Mechanical Engineer jobs in Oak Ridge, TN are:

What are popular job titles related to Senior Mechanical Engineer jobs in Oak Ridge, TN?

For Senior Mechanical Engineer jobs in Oak Ridge, TN, the most frequently searched job titles are:

What job categories do people searching Senior Mechanical Engineer jobs in Oak Ridge, TN look for?

The top searched job categories for Senior Mechanical Engineer jobs in Oak Ridge, TN are:

What cities near Oak Ridge, TN are hiring for Senior Mechanical Engineer jobs?

Cities near Oak Ridge, TN with the most Senior Mechanical Engineer job openings:

Senior Mechanical Engineer jobs near you
Infographic showing various Senior Mechanical Engineer job openings in Oak Ridge, TN as of August 2026, with employment types broken down into 85% Full Time, 13% Part Time, 1% Contract, and 1% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $106,335 per year, or $51.1 per hour.

Senior Mechanical Engineer

Amentum

Oak Ridge, TN • On-site

$99K - $131K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 14 days ago

Job description

Senior Mechanical Engineer
Amentum is a global leader in advanced engineering and innovative solutions, supporting critical missions across defense, intelligence, energy, and civilian sectors. Our people are our competitive advantage, driven by purpose, collaboration, and a commitment to delivering excellence for our customers and communities. We are currently seeking a Senior Mechanical Engineer to support our Projects.
Description:
As a senior-level mechanical engineer, you will serve as a technical leader responsible for the design, coordination, and delivery of building mechanical systems for industrial and government facilities. This role includes oversight of HVAC, plumbing, and piping system designs; leadership of mechanical engineering teams; and accountability for technical quality and compliance throughout the project lifecycle.
The successful candidate will work closely with project management, discipline leads, and clients to deliver fully coordinated, code-compliant, and high-quality engineering solutions in accordance with Amentum's established quality procedures.
Key Responsibilities:
  • Lead and oversee the design of HVAC, plumbing, and piping systems, including B31.3 process piping
  • Serve as technical authority for mechanical system design within assigned project scope
  • Review, approve, and check engineering calculations, layouts, specifications, and drawings
  • Apply advanced engineering judgment to resolve complex design issues
  • Support project planning by assisting with:
    • Scope definition
    • Equipment sizing
    • Schedule development
    • Budget control for mechanical design activities
  • Coordinate mechanical designs with structural, electrical, architectural, and process disciplines
  • Apply applicable codes, standards, and procedures (e.g., IMC, ASHRAE, NFPA, ASME)
  • Interface with clients and other stakeholders as a senior technical contributor
  • Provide senior-level support during procurement and construction phases, including review and resolve RFIs, submittals, and field issues
  • Mentor and guide engineers and designers on applicable codes, standards, and best practices
  • Ensure all work under your technical responsibility complies with Amentum's engineering and quality procedures

Basic Qualifications:
  • B.S. Mechanical Engineering from an ABET accredited engineering program
  • 15+ years in industrial/government design of Mechanical, HVAC, Plumbing Systems, and related mechanical building systems
  • Demonstrated experience delivering projects from concept through detailed design completion
  • Proven ability to lead teams of engineers and designers within budget and schedule constraints
  • Proficiency with discipline-specific tools such as: Carrier HAP, Trane TRACE, PipeFlo, AutoCAD, MicroStation, etc.
  • Thorough knowledge of applicable codes & standards (International Mechanical Code, NFPA, ASHRAE, etc.)
  • Professional Engineer (PE) license required

Preferred Qualifications:
In addition to the Basic Qualifications the ideal candidate might also have:
  • Prior nuclear, DOE, or high-hazard facility design experience
  • Experience working under a formal quality program (ISO 9001, NQA 1)
  • Strong leadership, communication, and technical mentoring skills
  • Demonstrated attention to detail and commitment to technical excellence
  • Proficiency with Microsoft Office (Excel, Word, Outlook)

Work Environment:
  • Primarily office-based work in a secure engineering environment
  • Amentum office location is preferred; hybrid or remote work may be available by prior agreement based on role and project requirements
  • Occasional exposure to industrial facilities, which may include elevated noise levels, hazardous materials, or controlled areas
  • Site visits may be required

Physical Requirements:
  • Ability to sit or stand for extended periods
  • Ability to lift up to 35 lbs occasionally
  • Vision correctable to 20/20
  • Ability to read and use computer-aided design software effectively
  • Appropriate PPE and training will be provided as required

Compliance & Eligibility Requirements:
  • U.S. Citizenship required (no dual citizenship)
  • Valid driver's license is required
  • Ability to obtain and maintain a security clearance
  • Ability to pass pre-employment background investigation and drug screening
  • Willingness to work overtime or outside normal hours as needed
  • Professional appearance appropriate for a customer-facing engineering environment
  • Travel required: less than 10%

Compensation Details:
$140,000 - $165,000
The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.
Benefits Overview:
Our health and welfare benefits are designed to support you and your priorities. Offerings include:
  • Health, dental, and vision insurance
  • Paid time off and holidays
  • Retirement benefits (including 401(k) matching)
  • Educational reimbursement
  • Parental leave
  • Employee stock purchase plan
  • Tax-saving options
  • Disability and life insurance
  • Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.
Original Posting:
08/20/2026 - Until Filled
Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.
Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

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