Demo

Test Engineer III

Apex Systems
Warren, MI Full Time
POSTED ON 3/27/2026
AVAILABLE BEFORE 4/25/2026
Job#: 3025380

Job Description:

Hardware Development Engineer – Diesel Fuel Injector Test Benches

The Role

We are seeking a high‑performing Hardware Development Engineer to plan, develop, and execute diesel fuel injector component and subsystem tests in a world‑class development facility. Responsibilities include hands‑on test bench work, data analysis, calibration support, and driving test efficiency through data reduction and virtualization of lab activities. This assignment requires creativity, initiative, and independent judgment, as well as effective cross‑organizational teamwork.

What You’ll Do

Test & Bench Ownership

  • Execute diesel fuel injector development and validation testing across multiple engine programs.
  • Develop, implement, and execute first‑time capable tests for hardware development and validation on diesel injector benches.
  • Lead diagnosis and resolution of issues that occur during test setup, execution, and post‑test investigations.
  • Track and report test status, issues, and risks to support program milestones and decision making.
  • Ensure all testing is conducted in accordance with GM safety, quality, and procedural standards.

Data, Tools & Virtualization

  • Create, maintain, and utilize post‑processing tools (e.g., MATLAB) to assure data quality and improve test efficiency.
  • Analyze data to optimize test plans, reduce test time, and support virtual model development and correlation.
  • Identify and implement data reduction opportunities, including standardization of data sets and automation of routine analysis tasks.
  • Contribute to the migration of lab‑based activities to virtual methods, partnering with analysis and virtualization teams.

Collaboration & Continuous Improvement

  • Collaborate with facilities, technical specialists, calibration teams, hardware release engineers, and other stakeholders to improve process and test efficiency.
  • Participate in the pursuit of test reduction and elimination, working with design, analysis, and program teams to identify where physical testing can be streamlined, replaced, or virtualized.
  • Support continuous improvement of standard work, procedures, and documentation for diesel injector bench testing.

Leadership & Mentoring

  • Train, mentor, and develop new engineers and co‑ops/rotators on bench operation, safety, and standard work.
  • Provide technical guidance on diesel fuel injector function, test methods, and data interpretation to peers and partners.

Education & Training

  • BS in Mechanical Engineering, Aerospace Engineering, Electrical Engineering, Chemical Engineering, Computer Science, Physics, or a related engineering discipline.

Required Skills & Experience

  • Minimum 2 years of experience in automotive engineering with engine knowledge (diesel or gasoline).
  • Demonstrated drive for results in a laboratory or development environment.
  • Strong planning and problem‑solving skills, including the ability to manage multiple test activities in parallel.
  • Strong oral and written communication skills.
  • High level of interpersonal skills to work effectively with others, build peer relationships, and work independently with minimal direction.
  • Proven ability to prioritize work and resources, balancing urgent program needs with long‑term improvements.
  • Proficient with computer and data acquisition systems used in test environments.
  • Experience in data analysis to optimize testing, assess hardware performance, or support model correlation.
  • Experience using and creating MATLAB scripts for data analysis and post‑processing.

Preferred Skills & Experience

  • Experience with AVL PUMA/IndiCom and ETAS INCA software.
  • Exposure to engine calibration in test cell and/or vehicle environments.
  • 5 years of experience in automotive engineering with engine development or testing.
  • Hands‑on experience with engine dynamometer setup and testing.
  • Experience with diesel engine function, architecture, and subsystems, including high‑pressure common‑rail fuel injection.
  • Hands‑on experience with diesel injector or common‑rail bench testing (flow, leakage, spray characterization, durability, etc.).

Work Location & Model

  • This role is expected to be lab‑based/hybrid, with significant time spent on‑site in the Pontiac test facility supporting hands‑on bench activities.
  • Specific onsite expectations and hybrid details will be defined by the hiring manager based on business needs.

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click here for more details.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6 months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide.

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click here for more details.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6 months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide.

Apex Systems is part of the Commercial Segment of ASGN Incorporated.

NYSE: ASGN

4400 Cox Road

Suite 200

Glen Allen, Virginia 23060

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Apex Systems.

Salary : $35 - $50

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