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Salary
≈ $67k – $160k per year (Estimated)
Location
In office (Seminole)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 14, 2026. First seen by Alion on Sep 24, 2026.

Overview
Company
Impact
Profile match
Experience innovation and reliability with our advanced environmental control systems. From design to certification, experience excellence at every step.

Description

At ACE Thermal Systems, we design, engineer, manufacture, and support high-performance environmental control systems (ECS) and components for extreme temperature and operating conditions and reliable everyday use in aircraft. We are a dedicated supplier for bleed air systems, air conditioning systems, cabin pressure control systems, components, and more.

Our mission is to be the trusted source of mission critical products and services for Aerospace and Defense customers. We do this by exceeding customer expectations through innovative products and processes. We are committed to fostering a dynamic, collaborative environment that encourages professional growth and innovation.

*** position is located in SEMINOLE, OKLAHOMA ***

Position Summary:

As the Design Engineer you will be a key contributor for supplying subcomponents for aerospace. You’ll design your product on-screen and then see it built, tested and used. A Design Engineer is responsible for supporting product development programs for aerospace environmental control system applications. From component and / or system design development, verification, validation, transition to production and continued sustaining support, your main role is to document the design of a product and any changes as the product lifecycle progresses. You’ll also conduct testing in our research and development lab. All under the guidance of an engineering manager, staff engineer or senior level engineer. Responsibilities include:

  • Performs project assignments under direct supervision of engineering manager, staff engineer or senior engineer.
  • Assesses customer requirements and designs projects to meet these requirements.
  • Analyzes problems or difficulties and recommends action to be taken.
  • Responsible for completion and accuracy of engineering documentation.
  • Prepares and presents design data in support of internal and Customer design reviews.
  • Support DFX (Design to Cost, Manufacturability, Reliability, etc.) efforts.
  • Prepares Development and Qualification Test Plans, Procedures and Test Reports.
  • Creates initial drawings and minor revisions. Release simple drawings.
  • Understands the concepts of the system/components functionality.
  • Understands the principles of the design under construction.
  • Monitor and control project cost and schedule and effectively communication project status to stakeholders.
  • Supports existing products.
  • Makes recommendations for design, process or cost reduction improvements including substantiating tests and analysis.
  • Provides technical assistance to Business Development, Manufacturing and Quality organizations.
  • Maintains project files, ensures proper documentation per Company guidelines
  • Assists in planning and coordination with support groups.
  • Reviews project status, makes recommendations where necessary.
  • Assists Business Development Department in proposal preparation and customer presentations; interacts with customers and suppliers on technical and program matters.
  • Communicates status accurately and regularly to Management, recommending solutions for problems encountered.
  • Performs miscellaneous duties as needed within Engineering Department

Requirements

Required Qualifications:

  • B.S. Degree in Mechanical Engineering, Aerospace Engineering, or related field required.
  • 0-5 years of experience in development of environmental control, system components and systems. Aerospace or aircraft industry experience preferred.
  • SolidWorks or AutoDesk experience required, certification preferred.
  • Working knowledge of CAD design and analysis tools.
  • Proficiency in MS Office software, including MS Project, Outlook, and more.
  • Able to work on-site in Seminole, OK facility is required.
  • Ability to travel domestically and internationally up to 5% of the time, required to support customer meetings and reviews.

It should be noted that this position will require regular use of hands, fingers, handle, control, or feel objects, tools or controls. And will require regular walking, sitting, stooping, bending, and movement about the office.

Application Deadline: The position will remain open until filled.

Benefits: We offer a comprehensive benefits package that includes medical, dental, and vision coverage; a 401(k) plan with company match; paid time off (including vacation and company holidays); life and disability insurance; and an employee assistance program. Employees may also be eligible for professional development support, and wellness initiatives. Benefits eligibility and offerings may vary based on position, location, and length of employment.

EEO Summary: We are an equal opportunity employer and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, genetic information, veteran status, or any other status protected by applicable federal, state, or local laws.

We are committed to providing reasonable accommodation for individuals with disabilities throughout the application and employment process. If you require assistance or accommodation, please contact us.

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