As an AST, Mechanical Experimental Equipment engineer, you will be responsible for mechanical systems maintenance (vessels, piping, valve, control valves, regulators, etc.) of the rocket test facilities at Stennis Space Center. In addition, you will participate in the design, construction and test operations for new and existing NASA and commercial test programs in the test complex.
Learn more about this agency
U.S. Citizens, Nationals or those who owe allegiance to the U.S.
- Duties described below are at the highest grade advertised. Duties assigned at lower grade levels will be of more limited scope, performed with less independence and limited complexity; duties will be commensurate with the grade of selected employee.
- Assists senior engineers in managing, coordinating, and supporting the design, activation, and test of electrical and mechanical systems and related components in areas such as rocket propulsion and power.
- Develops procedures for the facility build-up, activation, operations, and maintenance of electrical and mechanical systems as applicable in support of propulsion testing. n and organize work.
- Identifies and investigates standard problems in electrical and mechanical systems.
- Works with senior engineers in providing engineering solutions and technical consultation to civil servants and support contractors in the resolution and correction of field problems and monitors corrective actions through completion.
- Monitors contractor activities to ensure written procedures and policies are followed.
- With senior engineer oversight, operate mechanical facility systems in support of rocket engine testing on NASA’s primer test stands.
- Writes procedures for maintenance of mechanical systems to keep these test systems safe and operational.
- Participates in the design process through attendance of project reviews. Review plans, specifications and cost estimates for technical adequacy. Prepare written reports and presentations on complex subject matter.
- This position is open to U.S. citizens, nationals or those who owe allegiance to the U.S.
- This position may require a one-year probationary/trial period. If selected, the requirement to serve such period will be determined by Title 5 of the Code of Federal Regulations, Part 11. **See Additional Information section**
- You must meet qualifications requirements by the closing date of this announcement.
- Position subject to pre-employment background investigation or higher-level clearance. Investigation/Clearance may differ and be required based on the duty location/NASA Center requirements.
- Financial Disclosure, Drug Testing, and/or the Travel Requirements for this position may differ and be required based on the duty location/NASA Center requirements.
In addition to the Basic Education Requirement (in the Education section below), to qualify for this position you must meet the requirements below. Specialized experience is experience that has equipped you with the particular ability, skill, and knowledge to successfully perform the duties of this position and is typically in or related to this line of work.
NASA utilizes OPM-approved qualification and rating requirements specific for Aerospace Technology (AST) positions which recognizes NASA's unique aerospace work. The specific qualifications and minimum education requirements are further described below and within the education section of the job announcement.
To qualify for GS-07, you must have:
a) One year of directly related specialized experience equivalent to the GS-05 level:
- Utilizing theories, principles, practices, and techniques associated with the operations and maintenance of facility systems such as valve control pneumatics, hydraulics, cryogenics, and high-pressure gases (nitrogen, helium, hydrogen, and air) including components, piping, tubing, instrumentation, facility power, and control systems;
OR
b) Completed 1 full academic year of graduate study in an appropriate field
OR
c) Any combination of experience and graduate study in an appropriate field
OR
d) You may also qualify at the GS-07 level by meeting
one of these Special Provisions:
- Are in the upper third of your class, based on completed college work at the time of filing an application.
- Have an average of 2.9 or better on a 4.0 scale for either all completed college work at the time of application, or all college courses completed during the last 2 years of the undergraduate curriculum.
- Achieved a grade average of B+ (3.5 on a 4.0 scale) or better in the major field of study where such field is fully qualifying. This is either the average of all completed college work in the major field of study at the time of application or the average of all college courses completed in the major field of study during the last 2 years of the undergraduate curriculum.
- Elected to membership in one of the national honorary scholastic societies meeting the minimum requirements of the Association of College Honor Societies (other than freshman honor societies). These honor societies are listed at ACHS.
- Completed 12 months of student trainee experience that includes at least one work period equivalent to the GS-5, or at least 15 months of appropriate student trainee experience which includes one work period equivalent to the GS-04 level. One work period is 2 months or 320 hours.
- For engineering positions, successfully completed a 5-year program of study, or at least 160 semester hours, leading to a bachelor's degree.
- For engineering positions, have a professional engineering degree, and up to 12 months of experience gained as a technician or technologist equivalent to the GS-5 or higher level.
- Successfully completed all requirements for two bachelor's degrees, one in an appropriate field of science or engineering.
- Have six months of directly related/specialized experience or training, including 3 months gained after the junior year of college. This experience may have been obtained on a part-time or intermittent basis and may have been paid or unpaid.
- Received honors or elective positions indicating superior leadership outside of your academic setting. Additionally, your academic standing must have been in the upper half of the graduating class.
- Have pattern of completing courses that include unusual preparatory value or direct relation to the particular aerospace specialty for which you are being considered.
- Have creative research aptitude or special talent for NASA scientific or engineering work. This must be shown by evidence obtained and documented by NASA in certifications from college professors or officials, or standardized questionnaires, or similar techniques.
you must have:
a) One year of directly related specialized experience equivalent to the GS-07 level:
- Providing input on techniques associated with the operations and maintenance of facility systems such as valve control pneumatics, hydraulics, cryogenics, and high-pressure gases (nitrogen, helium, hydrogen, and air) including components, piping, tubing, instrumentation, facility power, and control systems;
- Performing engineering in one or more of the following areas: operations, design or construction of facilities;
- Handling techniques for propellants such as Liquid Hydrogen, Liquid Oxygen, Liquid Nitrogen, and hydrocarbon-based fuels.
OR
b) Completed all requirements for a master's or equivalent graduate degree in an appropriate field
OR
c) Completed 2 full academic years of graduate education in an appropriate field
OR
d) Have an equivalent combination of experience and graduate study as discussed in a), b) and c) above
Your resume must include a clear and detailed narrative description, in your own words, of how you meet the required specialized experience. Experience statements copied from a position description, vacancy announcement or other reference material constitutes plagiarism and may result in disqualification and losing consideration for the job.
NASA prohibits the use of artificial intelligence (AI) or AI-assisted tool in drafting application and assessment responses. Please visit https://www.nasa.gov/careers/how-to-apply/#Artificial-Intelligence to review NASA's guidance on the use of AI tools during the application process.
Basic Education Requirement: You must have successfully completed a bachelor's degree with a major in one of the following:
a) Engineering from a college or university that has ABET accredited engineering programs
b) Physical Science, Mathematics, Life Science or other field of Science
c) Computer Science that included 30 semester hours or 45 quarter hours of course work in any combination of mathematics, statistics and computer science with at least half of those hours in mathematics and statistics courses that included differential and integral calculus; and that provided an in-depth knowledge of theoretical and practical applications of computer science, including digital computer system architecture and system software organization, the representation and transformation of information structures, and the theoretical models for such representations and transformations.
If you did not complete a qualifying bachelor's degree, you may be eligible if you have obtained a graduate degree in an AST qualifying field, as listed above.
Degrees in engineering technology are not considered qualifying for this position.
Engineering degrees earned within the United States: Engineering degrees earned within the United States must be from a college or university that has at least one ABET accredited engineering program. To find out if a school has at least one ABET accredited program, please visit http://www.abet.org.
Engineering degrees earned outside the United States: Engineering degrees earned outside the United States must be recognized by a Mutual Recognition Agreement (MRA), often known as accords. These are non-governmental agreements among organizations that accredit academic degree programs. MRAs recognize the substantial equivalence of mature accreditation systems and programs accredited by signatory organizations within their jurisdictions. For a listing of Signatories, please visit, https://www.abet.org/global-presence/mutual-recognition-agreements/is-your-program-recognized/.
Science and other related degrees earned within the United States: Science and other related degrees must have been awarded from colleges or universities that are accredited by recognized accrediting organizations. For a list of schools that meet this criteria, go to http://ope.ed.gov/accreditation/.
Science and other related degrees earned outside the United States: If you are using education completed in foreign colleges or universities to meet the qualification requirements, you must show that the education credentials have been evaluated by a private organization that specializes in interpretation of foreign education programs. These education credentials must be 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/.
All degrees must have been received in the year of, or any year subsequent to the original date of accreditation.
Additional selections may be made for similar positions across NASA within the local commuting area(s) of the location(s) identified in this announcement. By applying, you agree to have your application shared with interested selecting official(s) within NASA. CTAP/ICTAP will be cleared for any additional selection from this announcement.
If you have special priority selection rights under the Agency Career Transition Assistance Program (CTAP) or the Interagency Career Transition Assistance Program (ICTAP), you must:
- Indicate your eligibility when applying for a position. The questionnaire asks you to identify your ICTAP/CTAP eligibility.
- Meet the minimum qualifications requirements for the position
- Submit proof that you meet the requirements for CTAP/ICTAP as indicated in 'Required Documents'
For additional information about CTAP/ICTAP eligibility, click here - https://www.opm.gov/policy-data-oversight/workforce-restructuring/employee-guide-to-career-transition/#ictap
Any applicant that received a Voluntary Separation Incentive Payment (VSIP) from the federal governmentwithin the last five years based of the closing date of this announcement, if selected, may be required to repay the full amount prior to establishing a start date. For additional information on the VSIP repayment requirement, click here - https://www.opm.gov/policy-data-oversight/workforce-restructuring/voluntary-separation-incentive-payments/.
Per Executive Order 14343, this position is not part of a bargaining unit.
Probationary Period
You may be required to serve a one-year probationary period during which we will evaluate your fitness and whether your continued employment advances the public interest. If selected, the requirement to serve such period will be determined by Title 5 of the Code of Federal Regulations, Part 11.
In determining if your employment advances the public interest, we may consider:
Upon completion of your probationary period your employment will be terminated unless you receive certification, in writing, that your continued employment advances the public interest.
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.
You will be evaluated for this job based on how well you meet the qualifications above.
Direct Hire Authority: These positions will be filled through the Office of Personnel Management's Direct Hire Authority. Category rating and veterans' preference will not be considered in evaluating applicants. For more information on Direct Hire Authority, please see: OPM Direct Hire Fact Sheet.
Veterans: Under the provisions of Direct Hire Authority, veterans' preference does not apply. However, applicants who are eligible for veterans' preference are encouraged to include that information in their application and submit supporting documentation (i.e. DD-214, or other substantiating documents). For more information please see: Veterans' Preference information on the FedsHireVets website.
You will be evaluated for this position based on how well you meet the qualifications and eligibility requirements listed in this vacancy announcement. To determine your qualifications and referral status, we may review your resume and supporting documentation and compare it against your responses to the assessment questionnaire. Overstating your qualifications and/or experience in your application materials or assessment questionnaire may result in your removal from consideration.
You will be assessed on the following competencies:
- Technical Competence
- Technology Application
- Written Communication
- General Engineering
To preview the application questionnaire, click on the following link: https://apply.usastaffing.gov/ViewQuestionnaire/12972508
NASA considers 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). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will receive credit for all qualifying experience, including volunteer experience.
NASA will not ask you to disclose criminal history record information during the application process or before we make a conditional/tentative offer of employment. If you apply for this position and are selected, NASA will conduct a suitability/security background investigation after you accept a tentative job offer. If you feel you are asked to disclose your criminal history before you accept a tentative offer and wish to file a complaint within 30 days, please contact: Agency-FCCJ@NASA.gov.
All submitted resumes must not exceed two (2) pages in length. Resumes longer than two pages will be rejected by USAJOBS. Applicants are strongly encouraged to prioritize including experience and relevant qualifications that directly align with the position advertised. All work experience and accomplishments must be associated with dates (month/year) to allow for accurate qualification assessment.
A complete application package includes a resume, required documents and completion of the vacancy announcement questionnaire. Please see this guidance: What to include in your resume. Your resume should describe your specialized experience and support your answers to the vacancy announcement questionnaire. If you are using a Curriculum Vitae (CV) as a resume, it must meet all requirements listed above for a complete resume package.
Please note: if any of the following types of information are included on your resume, your application package will be disqualified:
- Classified or government sensitive information.
- Social Security Number (SSN)
- Photos of yourself
- Personal information, such as age, gender, religious affiliation, etc.
- Encrypted and digitally signed documents.
If your resume contains any of the above information, you must redact that information prior to the submission of your application.
The following documents are required:
As listed in the Education section above, this position has a basic education requirement.
To be found qualified, you must provide a copy of your college transcript that fully demonstrates you meet the requirements listed in the Education section. You may provide either an unofficial transcript or a copy of an official transcript.
Failure to provide a complete copy of your college transcript that shows you have completed a required degree program or coursework may result in you being found not qualified.
At the GS-07 level, most applicants qualify based on their grade point average (GPA). Transcripts without a GPA will likely result in you being found not qualified.
You may need to submit other supporting documents (licenses, certification, veterans' preference information, etc.), based on your answers to the application questionnaire. When you apply, please verify you submit the appropriate documents. Do not submit an OF-306 with your application.
If you are a surplus or displaced employee (CTAP and ICTAP), submit proof that you meet the requirements for CTAP/ICTAP. This includes copies of your agency notice, most recent Performance Rating and most recent Notification of Personnel Action (SF-50) noting current position, grade level, and duty location.
Official documents are required at the time of appointment for verification of eligibility and qualifications.
Please read the entire announcement and all the instructions before you begin an application and have all required information available. We encourage you to provide a complete description of your educational achievements and include both paid and non-paid work in the experience portion of your resume. If you submit a resume that does not contain the required information, you may lose consideration.
To apply for this position, you must complete the initial online application, to include the initial online assessment and submission of the required documentation specified in the Required Documents section below.
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:
- To begin the application process, you will need to be logged into your USAJOBS account. If you do not have a USAJOBS account, you will need to create one before beginning the application process. Once logged in to your account, click on the "Apply" link.
- Follow the prompts to select your resume (2 pages or fewer) and/or other supporting documents to be included with your application package. Resumes longer than 2 pages will be rejected by the system. Resumes submitted via other document types will not be forwarded to the hiring manager, nor will they be used in the review of your qualifications. We strongly encourage you to utilize the USAJOBS resume builder when creating your resume. Using the resume builder will help you ensure your resume includes important information related to your qualifications and eligibility for this position. Answer the questions presented in the application and attach all necessary supporting documentation. During the application process you can review, edit, delete and update your information. We'll automatically save your progress as you go, so you won't lose any changes. Your uploaded documents may take several hours to clear the virus scan process.
- After acknowledging you have reviewed your application package, complete the 'Include Personal Information' section as you deem appropriate and click to continue with the application process. You will be taken to the vacancy questionnaire which you must complete in order to apply for the position. Complete the online application, verify all required documentation is included with your application package, and submit the application.
- Click the Submit Application button prior to 11:59PM (ET) on the announcement closing date.
NASA's online application process provides step by step guidance to ensure you provide all needed information. If you are unable to apply online, please contact NSSC-STAFFING@MAIL.NASA.GOV for assistance. Be advised - application materials faxed, emailed, and/or mailed to Stennis Space Center
will not be accepted for this announcement.
NASA provides reasonable accommodations to applicants with disabilities. If you are an applicant with a disability and need a reasonable accommodation for any part of the application and hiring process, please notify the agency contact center listed on the job vacancy announcement. The decision on granting reasonable accommodations will be on a case-by-case basis.
NASA Shared Services Center
Phone
1-877-677-2123
Fax
1-866-779-6772
Email
nssc-staffing@mail.nasa.gov
Address
Stennis Space Center
Building 1111, Jerry Hlass Road
Stennis Space Center, MS 39529
US
Once you submit your application package, you will receive an acknowledgement email. Throughout the process you will receive regular status updates through USAJOBS. To verify the status of your application, log into your USAJOBS account (Account Login), all of your applications will appear on the Welcome screen. The Application Status will appear along with the date your application was last updated. For information on what each Application Status means, visit: Application Status.
Whether or not you are contacted for an interview depends upon the location of the position and the judgment of the hiring manager.
If you are selected, you will be notified by phone or email with a tentative job offer. If you fail to meet the conditions of employment or any other pre-employment requirements, such as missing a scheduled appointment, we may rescind a tentative job offer.
An official, written job offer will be issued once all requirements have been verified.
Accepting applications
Posted this week · Apply today
Due by 11:59 p.m. ET on June 8, 2026
Location
1 vacancy in the following location:
Stennis Space Ctr
Stennis Space Center, MS
No matching locations found.
Work site options
Telework eligible
Yes—as determined by the agency policy.
Relocation expenses reimbursed
No
Salary
$56,039 - $84,371 per year
Pay scale & grade
GS 7 - 9
Learn more about pay scale and grade
Pay scale and grade determines the salary of the job.
Travel Required
Occasional travel - You may be expected to travel for this position.
Appointment type
Permanent
Occupations and job series
- 0830 Mechanical Engineering
Federal service type
This job is in the Competitive Service
Represented by a union
No
Security clearance
Not Required
Position sensitivity and risk
Non-sensitive (NS)/Low Risk
Jobs require a background check and some require a security clearance. The type depends on the job.
Financial disclosure required
No
Some jobs require financial disclosure to identify conflicts of interests.
Announcement number
SSC-26-DE-12972508-SL
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