Research Aerospace Engineer, AST, Airbreathing Propulsion Systems (Direct Hire)

As a Computational Fluid Dynamics (CFD) research aerospace engineer in the Hypersonic Airbreathing Propulsion Branch at NASA Langley Research Center, you will be working to apply computational methods and tools to numerically simulate the flow in high-speed propulsive flowpaths and around hypersonic vehicles. You will also be part of the branch's VULCAN-CFD software development team working to enhance existing capabilities, as well as incorporating new capabilities into the software.

Major Duties

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.

Applies CFD and numerical tools in a parallel processing environment to simulate and analyze the performance and operability of high-speed air-breathing propulsive components.

Estimates numerical uncertainties and applies optimization methods to improve performance.

Conducts research to understand the fundamental physics associated with air-breathing propulsive components, flowpaths and ground test facilities and uses CFD to design and evaluate new components, flowpaths and test facility hardware.

Uses programming skills to add new models and new capabilities into CFD and utility codes. These codes are used in a parallel processing environment and use modern CPU and GPU computing hardware.

Develops new algorithms, methods, and solution approaches to reduce the time it takes CFD practitioner to go from an initial concept to a final solution.

Implements, verifies and validates CFD software utilizing unit testing, benchmark cases, analytical solutions, and / or method of manufactured solutions to ensure accurate simulation results.

Utilizes industry standard software tools (development environments, build systems, continuous integration, version control, and performance profiling) to aid in the development of CFD simulation tools for High-Performance Computing environments.

Prepares technical reports, research papers, and presentations to communicate simulation results in a clear and concise manner.

Qualifications

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. Vacant research positions may be filled at one of several grade levels depending upon the scientific impact of the person selected. A review may be required to determine the appropriate grade level of the position and supplemental materials may be required from the selectee. Please keep this in mind when indicating the lowest grade you will accept. If selected at the lower grade level, your scientific impact will be examined in addition to other factors, to determine if you are eligible for promotion. To qualify for GS-11, you must have: a) One year of directly related specialized experience equivalent to the GS-09 level: Generating high quality Computational Fluid Dynamics (CFD) solutions and post processing the data while following best practices for ensuing solution accuracy; Examining the computed flow field to verify that the solution makes physical sense and that there is nothing that indicates a problem with the solution; Developing and/or modifying software to use in pre- and/or post-processing grids and/or CFD solutions. Post processing CFD solutions to extract and/or compute properties and/or metrics of interest OR b) Completed all requirements for a master's or equivalent graduate degree in an appropriate field OR c) Have an equivalent combination of experience and graduate study as discussed in a) and b) above OR d) Expect to complete the education degree requirements for this grade level by January 10, 2027. To qualify for GS-12, you must have: a) One year of directly related specialized experience equivalent to the GS-11 level: Generating high quality Computational Fluid Dynamics (CFD) solutions for high-speed flows with complex geometries, post processing the data, identifying and correcting problems or issues, and following best practices to ensure solution accuracy; Developing and/or modifying software to use in pre- and/or post-processing grids and/or CFD solutions, for computing flow conditions, and/or to improve workflow. Post processing solutions to extract and/or compute properties and/or metrics of interest; Developing and/or modifying CFD software using a compiled language (e.g. Fortran, C, and/or C++) for parallel processing OR b) Completed all requirements for a doctoral degree (i.e., Ph.D. or equivalent) in an appropriate field. OR c) Expect to complete the education degree requirement for this grade level by January 10, 2027. To qualify for GS-13, you must have one year of directly related specialized experience equivalent to the GS-12 level: Applying Computational Fluid Dynamics (CFD) methods to numerically simulate flowfields, quantifying uncertainties, and optimizing aspects of a design; Discretizing the equations governing fluid flow (e.g. Euler, Navier-Stokes) and applying different solution approaches in a CFD code to solve the equations; Developing CFD software in Fortran, C, or C++ and using Message Passing Interface (MPI) software to run on GPU or CPU based compute clusters. Applying industry-standard software-development tools (e.g. git, cmake) and practices when developing software (e.g. unit testing). 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. Required college majors for applicants qualifying on the basis of undergraduate or graduate education only (GS-11 and GS-12 only): Aeronautical Engineering, Aeronautics, Aerospace Engineering, Astronautics, Chemistry, Applied Mechanics, Electrical Engineering, Engineering Mechanics, Mechanical Engineering, Nuclear Engineering, Nuclear Engineering Physics, Physics, Applied Physics, Engineering Physics. Other majors will qualify if the major includes or is supplemented as follows: Electronics Engineering, Applied Mathematics (or other field), if the major includes or is supplemented by one course in thermodynamics, nuclear physics, rocket propulsion fundamentals, gas dynamics or modem or molecular physics; Astronautical Engineering, Chemical Engineering, Pure Mathematics (or other related field), if includes or is supplemented by nine semester hours (or the equivalent) in physics, thermodynamics, chemistry or closely related fields.

Education

Basic Education Requirement: You must have successfully completed a bachelor's degree or expect to complete the basic education requirement for this position by January 10, 2027 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.

Promotion Potential

GS-13

How You Will Be Evaluated

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: Analytical and Computational Fluid Mechanics Mathematical Modeling and Analysis Aerospace Engineering Software Development To preview the application questionnaire, click on the following link: https://apply.usastaffing.gov/ViewQuestionnaire/12983612 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: [email protected].

Benefits

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Who Can Apply

• Open to the public

Required Documents

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: Resume Transcript 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. 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.

How to Apply

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 [email protected] for assistance. Be advised - application materials faxed, emailed, and/or mailed to Langley Research 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.

What to Expect Next

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.

Other Information

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 government within 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: your performance and conduct; the needs and interests of the agency; whether your continued employment would advance organizational goals of the agency or the Government; and whether your continued employment would advance the efficiency of the Federal service. 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.

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