Mechanical Engineer Job in Walla Walla, WA

Vacancy No. CEDE-26-12988747DHA Department U.S. Army Corps of Engineers
Salary $98,948.00 to $126,186.00 Grade 11 to 12
Perm/Temp Permanent FT/PT Full-time
Open Date 6/17/2026 Close Date 7/1/2026
Job Link Apply Online Who may apply Public
Locations:
Walla Walla, WA


Mechanical Engineer

Department of the Army
U.S. Army Corps of Engineers
Walla Walla District - Engineering & Construction Division

Summary

This is a Direct Hire Authority (DHA) solicitation utilizing the DHA for Certain Personnel of the DoD Workforce to recruit and appoint qualified candidates to positions in the competitive service.

About the Position: Serves as mechanical engineer with responsibility for developing the design of mechanical equipment and features of large Civil Works construction projects such as multipurpose dams, river navigation structures, fish hatcheries, and fish bypass facilities.

This job is open to

The public

U.S. Citizens, Nationals or those who owe allegiance to the U.S.

Duties

  • Senior Engineer in the Mechanical Design Section. GS-11 is a junior Mechanical Engineer leading to senior Engineer, GS-12.
  • Prepare preliminary design studies, design memoranda, design calculations, final design plans, and technical specifications for large Civil Works construction projects.
  • Develop preliminary and final design and layout of mechanical systems and equipment utilizing the CADD system as a design tool.
  • Make determinations regarding the compliance of contractors' proposals.
  • Coordinate with other engineers and architects during design development.
  • Furnish technical advice to other engineers and technicians.

Requirements

Conditions of employment

  • Appointment may be subject to a suitability or fitness determination, as determined by a completed background investigation.
  • Must possess and maintain a valid state Driver's License in one of the 50 U.S. states or possessions to operate vehicles.
  • You MUST submit a copy of your transcripts with your application package or proof of alternate Basic Requirements listed in this announcement.
  • This position has a Temporary Duty (TDY) or business travel requirement of 15% of the time.

Qualifications

Who May Apply: US Citizens

In order to qualify, you must meet the education and/or experience requirements described below. Experience refers to paid and unpaid experience, including volunteer work done through National Service programs (e.g., Peace Corps, AmeriCorps) and other organizations (e.g., professional; philanthropic; religious; spiritual; community; student; social). You will receive credit for all qualifying experience, including volunteer experience. Your resume must clearly describe your relevant experience; if qualifying based on education, your transcripts will be required as part of your application. Additional information about transcripts is in this document.

Basic Requirement for Mechanical Engineer:

A. Degree: Bachelor's degree (or higher degree) in engineering. To be acceptable, the program must: (1) lead to a bachelor's degree (or higher degree) in a school of engineering with at least one program accredited by the Accreditation Board for Engineering and Technology (ABET); OR (2) include differential and integral calculus and courses (more advanced than first-year physics and chemistry) in five of the following seven areas of engineering science or physics: (a) statics, dynamics; (b) strength of materials (stress-strain relationships); (c) fluid mechanics, hydraulics; (d) thermodynamics; (e) electrical fields and circuits; (f) nature and properties of materials (relating particle and aggregate structure to properties); and (g) any other comparable area of fundamental engineering science or physics, such as optics, heat transfer, soil mechanics, or electronics.

OR

B. Combination of Education and Experience: College-level education, training, and/or technical experience that furnished (1) a thorough knowledge of the physical and mathematical sciences underlying engineering, and (2) a good understanding, both theoretical and practical, of the engineering sciences and techniques and their applications to one of the branches of engineering. The adequacy of such background must be demonstrated by one of the following:

1. Professional registration or licensure - Current registration as an Engineer Intern (EI), Engineer in Training (EIT), or licensure as a Professional Engineer (PE) by any State, the District of Columbia, Guam, or Puerto Rico. Absent other means of qualifying under this standard, those applicants who achieved such registration by means other than written test (e.g., State grandfather or eminence provisions) are eligible only for positions that are within or closely related to the specialty field of their registration. For example, an applicant who attains registration through a State Board's eminence provision as a manufacturing engineer typically would be rated eligible only for manufacturing engineering positions.

2. Written Test - Evidence of having successfully passed the Fundamentals of Engineering (FE) examination, or any other written test required for professional registration, by an engineering licensure board in the various States, the District of Columbia, Guam, or Puerto Rico.

3. Specified academic courses - Successful completion of at least 60 semester hours of courses in the physical, mathematical, and engineering sciences and that included the courses specified in A above. The courses must be fully acceptable toward meeting the requirements of an engineering program.

4. Related curriculum - Successful completion of a curriculum leading to a bachelor's degree in an appropriate scientific field, e.g., engineering technology, physics, chemistry, architecture, computer science, mathematics, hydrology, or geology, may be accepted in lieu of a degree in engineering, provided the applicant has had at least 1 year of professional engineering experience acquired under professional engineering supervision and guidance. Ordinarily there should be either an established plan of intensive training to develop professional engineering competence, or several years of prior professional engineering-type experience, e.g., in interdisciplinary positions.

In addition to meeting the basic requirement above, to qualify for this position you must also meet the qualification requirements listed below:

GS-11 Specialized Experience: One year of specialized experience which includes assisting with the design of mechanical equipment using concepts of machine design, fluid dynamics, finite element analysis, or analysis of dynamic systems. (Must be well documented in resume to be referred to selection panel). This definition of specialized experience is typical of work performed at the second lower grade/level position in the federal service (GS-09).

OR

Education: Ph.D. or equivalent doctoral degree or 3 full years of progressively higher-level graduate education leading to such a degree in a field which demonstrates the knowledge, skills, and abilities necessary to do the work of the position, such as: Mechanical Engineer.

OR

Combination of Education and Experience: A combination of education and experience may be used to qualify for this position as long as the computed percentage of the requirements is at least 100%. To compute the percentage of the requirements, divide your total months of experience by 12. Then divide the total number of completed graduate semester hours (or equivalent) beyond the second year (total graduate semester hours minus 36) by 18. Add the two percentages.

GS-12 Specialized Experience: One year of specialized experience which includes experience working independently in the design of mechanical equipment using concepts of machine design, fluid dynamics, finite element analysis, or analysis of dynamic systems. (Must be well documented in resume to be referred to selection panel). This definition of specialized experience is typical of work performed at the next lower grade/level position in the federal service (GS-11).

Some federal jobs allow you to substitute your education for the required experience in order to qualify. For the GS-12, you must meet the qualification requirement using experience alone--no substitution of education for experience is permitted. Must upload proof educational requirement has been met.

Education

FOREIGN EDUCATION: If you are using education completed in foreign colleges or universities to meet the qualification requirements, you must show the education credentials have been evaluated by a private organization that specializes in interpretation of foreign education programs and such education has been deemed equivalent to that gained in an accredited U.S. education program; or full credit has been given for the courses at a U.S. accredited college or university. For further information, visit: https://sites.ed.gov/international/recognition-of-foreign-qualifications.

Additional information

  • Male applicants born after December 31, 1959, must complete a Pre-Employment Certification Statement for Selective Service Registration.
  • You will be required to provide proof of U.S. Citizenship.
  • This position requires a 1 year probationary period during which the agency evaluates your fitness and whether your continued employment advances the public interest. In making this determination, the agency may consider your performance and conduct; agency needs and interests; whether your continued employment supports organizational or Government goals; and whether it promotes the efficiency of the Federal service. Continued employment requires written certification that it advances the public interest.
  • Direct Deposit of Pay is required.
  • Selection is subject to restrictions resulting from Department of Defense referral system for displaced employees.
  • If you have retired from federal service and you are interested in employment as a reemployed annuitant, see the information in the Reemployed Annuitant information sheet.
  • This is a Construction, Analysis, Science, Infrastructure, and Engineering Career Management Directorate, Career Field position.
  • Multiple positions may be filled from this announcement.
  • Salary includes applicable locality pay or Local Market Supplement.
  • When you perform a Civilian Permanent Change of Station (PCS) with the government, the Internal Revenue Service (IRS) considers the majority of your entitlements to be taxable. Visit https://www.dfas.mil/civilianemployees/civrelo/Civilian-Moving-Expenses-Tax-Deduction/ for more information.
  • Permanent Change of Station (PCS) allowances may be authorized, subject to the provisions of the Joint Travel Regulations and an agency determination that a PCS move is in the Government Interest.
  • Management may select at any of the grade levels announced.
  • Non-competitive promotion potential to the target grade.
  • Hiring incentives such as a recruitment/relocation bonus, service credit for leave, and student loan repayment may be authorized (subject to available budget).
  • Eligible for Special Salary Rate (SSR) 0755 for 0830.
  • This position is covered under the International Federation of Professional and Technical Engineers (IFPTE) Bargaining Unit.

Reasonable Accommodation (RA) Requests: If you believe you have a disability (i.e., physical or mental), covered by the Rehabilitation Act of 1973 as amended that would interfere with completing the USA Hire Competency Based Assessments, you will be granted the opportunity to request a RA in your online application. Requests for RA for the USA Hire Competency Based Assessments and appropriate supporting documentation for RA must be received prior to starting the USA Hire Competency Based Assessments. Decisions on requests for RA are made on a case-by-case basis. If you meet the minimum qualifications of the position, after notification of the adjudication of your request, you will receive an email invitation to complete the USA Hire Competency Based Assessments, based on your adjudication decision. You must complete all assessments within 48 hours of receiving the URL to access the USA Hire Competency Based Assessments if you received the link after the close of the announcement. To determine if you need a RA, please review the Procedures for Requesting a Reasonable Accommodation for Online Assessments here: https://appsupport.usastaffing.gov/hc/en-us/sections/28980686389652-Reasonable-Accommodation-Information

Candidates should be committed to improving the efficiency of the Federal government, passionate about the ideals of our American republic, and committed to upholding the rule of law and the United States Constitution.

A career with the U.S. government provides employees with a comprehensive benefits package. As a federal employee, you and your family will have access to a range of benefits that are designed to make your federal career very rewarding. Opens in a new windowLearn more about federal benefits.

Review our benefits

Eligibility for benefits depends on the type of position you hold and whether your position is full-time, part-time or intermittent. Contact the hiring agency for more information on the specific benefits offered.

How you will be evaluated

You will be evaluated for this job based on how well you meet the qualifications above.

You will be assessed on the following competencies (knowledge, skills, abilities, and other characteristics):

  • Attention to Detail
  • Customer Service
  • Flexibility
  • Integrity/Honesty
  • Interpersonal Skills
  • Learning
  • Reading Comprehension
  • Reasoning
  • Self-Management
  • Stress Tolerance
  • Teamwork


Overstating your qualifications and/or experience in your application materials or application questionnaire may result in your removal from consideration. Cheating on the online assessment may also result in your removal from consideration.

Once the announcement has closed, a review of your application package (resume, supporting documents, and responses to the questionnaire) will be used to determine whether you meet the qualification requirements listed on this announcement.

If, after reviewing your resume and/or supporting documentation, a determination is made that you have inflated your qualifications and/or experience, you may lose consideration for this position. Please follow all instructions carefully when applying, errors or omissions may affect your eligibility.

You should list any relevant performance appraisals and incentive awards in your resume as that information may be taken into consideration during the selection process. If selected, you may be required to provide supporting documentation.

Veterans and Military Spouses will be considered along with all other candidates.

Required Documents

The documents you are required to submit vary based on whether or not you are eligible for preference in federal employment. A complete description of preference categories and the associated required documents is in the Applicant Checklist for Public Announcements.

As described above, your complete application includes your resume, your responses to the online questionnaire, and documents which prove your eligibility to apply. If you fail to provide these documents, you will be marked as having an incomplete application package and you will not be considered any further.

1. Your resume:

  • Your resume must be two pages or less and must support the specialized experience described in this announcement. Resumes exceeding two pages will be removed from consideration.
  • For each relevant work experience, make sure you include the employer's name, job title, start and end dates (include month and year), for qualifications purposes, the number of hours worked per week, and a brief description that show you can perform the tasks at the required level listed in the job announcement. If your resume does not contain this information, your application may be marked as incomplete, and you may not receive consideration for this position.
  • Use plain language. Avoid using acronyms and terms that are not easily understood. The hiring agency will not make assumptions about what's in your resume.
  • If your resume includes a photograph or other inappropriate material or content, it will not be used to make eligibility and qualification determinations, and you may not be considered for this vacancy.
  • For additional information, to include formatting tips, see: What to include in your resume.
2. Other supporting documents:
  • Cover Letter, optional
  • Most recent Performance Appraisal, if applicable
  • This position has an individual occupational requirement and/or allows for substitution of education for experience. If you meet this requirement based on education you MUST submit a copy of your transcript with your application package or you will be rated ineligible. See: Transcripts and Licenses
NOTE: Documents submitted as part of the application package, to include supplemental documents, may be shared beyond the Human Resources Office. Some supplemental documents such as military orders and marriage certificates may contain personal information for someone other than you. You may sanitize these documents to remove another person's personal information before you submit your application. You may be asked to provide an un-sanitized version of the documents if you are selected to confirm your eligibility.

If you are relying on your education to meet qualification requirements:

Education must be accredited by an accrediting institution recognized by the U.S. Department of Education in order for it to be credited towards qualifications. Therefore, provide only the attendance and/or degrees from schools accredited by accrediting institutions recognized by the U.S. Department of Education.

Failure to provide all of the required information as stated in this vacancy announcement may result in an ineligible rating or may affect the overall rating.

How to Apply

Please read the entire announcement and all the instructions before you begin an application. To apply and be considered for this position, you must complete all required questionnaires, assessments and submit all required documentation as specified in the How to Apply and Required Documents section.

The complete application package must be submitted by 11:59 PM (ET) on the closing date of the announcement to receive consideration. The application process is as follows:

  1. Click the Apply Online button.
  2. Answer the questions presented in the application and attach all necessary supporting documentation. As a reminder, your resume must be two pages or less and must support the specialized experience described in this announcement. Resumes exceeding two pages will be removed from consideration. For additional information, refer to the 'Required Documents' section. To preview the application questionnaire, click the following link: https://apply.usastaffing.gov/ViewQuestionnaire/12988747
  3. Click the Submit Application button prior to 11:59 PM (ET) on 07/01/2026.
  4. If you are required to complete any USA Hire Assessments, you will be notified after submitting your application. The notification will be provided in your application submission screen and via email. The notification will include your unique assessment access link to the USA Hire system and the completion deadline. Additionally, in USAJOBS you can click "Track this application" to return to your assessment completion notice.
  5. Access USA Hire using your unique assessment link. Access is granted through your USAJOBS login credentials.
  6. Review all instructions prior to beginning your assessments. You will have the opportunity to request a testing accommodation before beginning the assessments should you have a disability covered under the Rehabilitation Act of 1973 as amended.
  7. Set aside about two (2) hours to take the USA Hire Assessments; however, most applicants complete the assessments in less time. If you need to stop the assessments and continue later, you can re-use your unique assessment link.
  8. Your responses to the USA Hire Assessments will be reused for one year (in most cases) from the date you complete an assessment. If future applications you submit require completion of the same assessments, your responses will be automatically reused.

For more general information, system requirements, reasonable accommodation information, and to request assistance regarding the USA Hire Assessments, review the following resources: https://appsupport.usastaffing.gov/hc/en-us/sections/28980562523540-USA-Hire-Assessments

To update your application, including supporting documentation: During the announcement open period, return to your USAJOBS account, find your application record, and click Edit my application. This option will no longer be available once the announcement has closed.

To view the announcement status or your application status: Click on this: https://help.usajobs.gov/how-to/application/status. Your application status page is where you can view your application status, USA Hire assessment completion status, and review your notifications sent by the hiring agency regarding your application.

Agency contact information

Army Applicant Help Desk
Website
https://portal.chra.army.mil/hr_public?id=app_inq
Address
RH-W2SJ03 US ARMY ENGINEER DISTRICT-WALLA WALLA
DO NOT MAIL
Walla Walla, WA 99362
US

Next steps

If you provided an email address, you will receive an email message acknowledging receipt of your application. Your application package will be used to determine your eligibility, qualifications, and quality ranking for this position. If you are determined to be ineligible or not qualified, your application will receive no further consideration.

Based on your application and your responses to the application questionnaire, you may be presented with instructions on how to access the USA Hire system to complete the online assessments. The online assessments must be completed within 48 hours following the close of this announcement. You will have the opportunity to request a testing accommodation for the assessment should you have a disability covered under the Rehabilitation Act of 1973, as amended.

U.S. Army Corps of Engineers

Looking for a great place to work? The U.S. Army Corps of Engineers (USACE) is one of the best! In 2020, USACE ranked #2 of government large-agency subcomponent! USACE is one of the world's premier public engineering, design, and construction management agencies. We serve the American people, striving to provide the most effective engineering and environmental science solutions to the nation's complex problems affecting national security, the economy and the environment in which we live.

USACE offers a team-inspiring and collaborative work environment; providing challenging and rewarding careers across a variety of disciplines. We rely on leaders with vision, creativity, and programmatic and technical expertise to lead us into the future. Align your talents with your passion and find out why the U.S. Army Corps of Engineers is a great place to work!

Agency contact information

Army Applicant Help Desk
Website
https://portal.chra.army.mil/hr_public?id=app_inq
Address
RH-W2SJ03 US ARMY ENGINEER DISTRICT-WALLA WALLA
DO NOT MAIL
Walla Walla, WA 99362
US

Visit our careers page

Learn more about what it's like to work at U.S. Army Corps of Engineers, what the agency does, and about the types of careers this agency offers.

https://www.usace.army.mil/Careers/