Sr. Principal Engineer - Emissions & Powertrain
Listed on 2026-02-11
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Engineering
Systems Engineer, Mechanical Engineer, Engineering Design & Technologists, Electrical Engineering
About Oshkosh Defense, An Oshkosh Company
Oshkosh Defense stands behind those who dedicate their lives to protecting others. As an industry-leading tactical vehicle manufacturer, every day we strive to meet or exceed our customers' ever-changing needs with next generation defense technologies and advanced systems. We operate with unparalleled commitment to those who depend on our products and services worldwide to perform their missions.
The Sr. Principal Engineer – Mechanical performs high level, engineering analysis, design or re-design, validation and troubleshooting of complex components for heavy duty vehicles. Provide integration and execution support for vehicle and component design. Provide technical leadership in high level analysis and design of new and modified components and subsystems in accordance with engineering standards and project scope. Provide specialty research and development, analysis, modeling, and simulation in strategic technology areas.
YourImpact
- Responsible for completion of a complex project on time.
- Will be responsible for overall project schedule and budget.
- Responsible for managing multiple priorities.
- Collaborate as needed with other engineering business support disciplines internally as well as suppliers externally.
- May have exposure to the external customers and/or industry organizations.
- Provide guidance or mentorship to entry level engineers working on a common project.
- Perform and check complex engineering calculations, investigations, and tasks as assigned according to Oshkosh as well as general industry engineering standards and processes.
- Responsible for the preparation and delivery of complex plans designs, computation methods, and/or reporting.
- Research, create, and update standard engineering methodology and procedures - best practices, etc.
- Researches, studies, and proposes use of new technologies to be used in the development of new and improved products.
- Maintain effective communication with suppliers, internal and external customers, and outside resources concerning technical issues.
- Provide guidance or mentorship to entry level engineers.
- Enforce the proper use of engineering criteria and drawing standards. Ensure that technical issues are conducted with the framework of company policies and procedures.
- Evaluate designs for performance, safety, and reliability.
- Create and maintain project documentation for analysis, research, and historical records.
- Perform rigorous engineering analysis to support the selection of parts, components, and materials that meet requirements.
- Prepare complex technical proposals, quotations, reports, and presentations.
- Other duties as assigned.
- Regular attendance is required.
- Accredited Bachelor's degree in Engineering or related field with eight (8) or more years of related experience.
- Accredited Master's degree in Mechanical Engineering.
- Strong mechanical knowledge of automotive or heavy-vehicle equipment and related systems.
- Experience with a high level CAD system.
- Internal Contacts:
Contact with peers and others involving explanation of information (these contacts may be within or outside department or division), and the gathering of factual information; may include the communication of sensitive or confidential information. - External Contacts:
Limited external contact to: gather information, answer queries, or ask assistance. - Communication
Skills:
Read, write and comprehend simple instructions, short correspondence and memos;
Read and interpret safety rules, operating/maintenance instructions and procedure manuals;
Write routine reports, correspondence and speak effectively before both internal and external groups;
Read, analyze and interpret business manuals, technical procedures and/or government regulations:
Read, analyze and interpret scientific and technical journals, financial reports and legal documents. - Decision-Making:
Significant responsibility for decisions and final results, affecting more than one function or a function with multiple unites. Substantial analysis is required and many factors must be weighted before a decision can be reached. - Complexity, Judgment and Problem Solving:
Work requires the ability to plan and perform work in light of new or constantly changing problems, work from broad instruction, and deal with complex factors not easily evaluated. Decisions require considerable judgment, initiative and ingenuity in areas there is little precedent. - Supervisory/Managerial:
General instructing, scheduling, and reviewing the work of others performing the same or directly related work. Acts as “lead worker”.
- Physical Demands:
Frequent:
Standing, Walking/Running, Sitting, Reaching, Hearing, Talking, Visual, Typing;
Occasional:
Driving, Fine Dexterity, Manual Dexterity;
Upper Extremity Repetitive Motion;
Seldom:
Lifting/Carrying 25lbs., Pushing/Pulling 25llbs. - Non-Physical Demands:
Frequent:
Analysis/Reasoning, Communication/Interpretation, Math/Mental…
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