Thales Defense & Security, Inc.

Senior Mechanical Engineer

Location US-Lemont Furnace
Posted Date 2 months ago(8/1/2022 3:46 PM)
Job ID
Engineering - Mechanical
Experience (Years)
Tracy Lin
Minimum Degree


Advanced Acoustic Concepts, LLC, a subsidiary of Thales Defense & Security, is a technical leader in the fields of sonar systems, sonar signal processing, acoustic training systems, and open architecture system & software integration for the United States defense industry. AAC focuses on emerging areas to be a leading provider of Undersea Warfare Solutions and our customers’ natural choice for integrated systems, sensors, weapons, and trainers. For additional information about Advanced Acoustic Concepts, please visit our website at:


Title: Senior Mechanical Engineer

Job Location
: Lemont Furnace, PA (Uniontown area)   


Duties and Responsibilities: 
The Senior Mechanical Engineer is responsible for performing tasks as directed which includes the following but is not limited to these tasks:

  • Involved with the design, fabrication and modification of mechanical and/or electro mechanical components, sub-systems and systems
  • May include Mechanical Analysis, Aerodynamics/Fluids, Thermal, Fluid Systems, Mechanical Packaging, or others
  • Evaluates and recommends design approaches to meet production requirements for new or improved products or services
  • Investigates solutions to product or process problems
  • Responsible for leading group of engineers on a technical activity and completion of activity on time and budget
  • Design, develop, analyze, document and support testing of products, systems or subsystems
  • May use computer-aided engineering or other design/analysis software in the performance of assignments
  • Review customer specifications and requirements, and under direction develops designs to best support them, including cost as a key design variable
  • Provide budget, cost and schedule input for design assignments
  • Specify and evaluate supplier components, subsystems and services
  • Drive the program design to cost and design for manufacture requirements
  • Develop prototypes to retire key development risks
  • Communicate clearly (written and oral) with other company personnel and the customer as required
  • Participates in preparation of proposals
  • Provide technical knowledge and assistance to other engineers and support personnel
  • Lead and direct the work of others as assigned
  • Support, communicate, reinforce and defend the mission, values and culture of the organization
  • Attend appropriate engineering, customer or business meetings
  • Lead less-experienced engineers


Basic Qualifications:

  • U.S. Citizenship required. Applicants selected may be subject to a government security investigation and must meet eligibility requirements for access to classified information.
  • Bachelor’s Degree in Mechanical Engineering (BSME, BSMET, or BSEMET)
  • 2 to 8 years of electrical engineering experience (position may be filled at less than the senior level)
  • Fluency in technologies and application domain
  • Ability to lead a technical group independently
  • Must be able to obtain/maintain the appropriate level of government issued security clearance and/or access
  • Proficient in Microsoft Office (Word, Excel, PowerPoint, Visio)
  • Technical knowledge of engineering documents including engineering drawings, parts lists, and bills of material
  • Must possess proficient problem-solving skills at both system and component levels
  • Experience with hydraulics
  • Experience with hands-on mechanical assembly and installation of heavy equipment using a crane

Additional Desirable Qualifications, Skills and Knowledge:

  • Performed structural analysis using Computer Aided Design and Model Driven Design Analysis tools such as ANSYS Multiphysics and SOLIDWORKS.
  • Developed fluid dynamic models using Computer Aided Design and Model Driven Design Analysis tools such as ANSYS Multiphysics and SOLIDWORKS.
  • Developed analytical models of mechanical systems using tools such as MATLAB and Mathcad.
  • Performed shock and vibration analysis using Computer Aid Design and Model Driven Design Analysis tools such as ANSYS Multiphysics and SOLIDWORKS.
  • Experience with thermal design and analysis
  • Strong electrical aptitude
  • Good interpersonal communication skills 

Physical Requirements:

  • Lifting up to 20 lbs. up to 25% of time
  • Walking up to 25% of time
  • Climbing, Bending, Standing, Stooping up to 10% of time
  • Sitting up to 75% of time
  • Must be willing to travel up to 25% of time to locations in the continental United States and internationally


We offer a variety of benefits, including medical, dental, vision, life, disability, and 401(k) savings plan. We champion programs that focus on you and your family’s physical, emotional and financial well-being.


Other benefits include:

  • Flexible work schedules such as our 9/80 schedule (off every other Friday)
  • Generous PTO and designated paid holidays
  • Tuition Assistance Program
  • Parental Leave

The health and safety of our employees and their families remains a top priority at AAC. Successful candidates must comply with federal contractor vaccine mandate requirements. Subject to state-specific exemptions, newly hired employees are required to provide proof they are fully vaccinated prior to their start date, unless a medical or religious accommodation or an exemption pursuant to applicable state law is formally approved by AAC prior to commencing employment. 


AAC champions inclusion and we believe diversity strengthens the fabric of our culture. We are an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

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