Computer Scientist

About the Position: This position is with the US Army Corps of Engineers, Institute for Water Resources (IWR), Hydrologic Engineering Center. This position will be filled on a permanent basis. Position is being filled at the GS-07, GS-09, GS-11, GS-12 or target GS-13 grade level. Duties described reflect the full performance GS-13 level. GS-07, 09, 11, and 12 duties will be performed in a developmental capacity under close supervision.

Major duties
Develops, tests, and maintains Army-wide hydrologic engineering software applications for the analysis and simulation of hydrologic systems.
Provides expert technical consultation and guidance to software development teams on hydrologic software design principles and best practices.
Develops system requirements for computer programs, considering architecture, feasibility, interoperability, and Army Enterprise Strategy.
Serves as a computer science consultant on USACE planning groups, advising on software development, simulation, modeling, and technology.
Prepares and presents briefings on software requirements, designs, testing procedures, and results to obtain necessary approvals.

Qualifications
Who May Apply: Only applicants who meet one of the employment authority categories below are eligible to apply for this job. You will be asked to identify which category or categories you meet, and to provide documents which prove you meet the category or categories you selected. See Proof of Eligibility for an extensive list of document requirements for all employment authorities. Current Department of Army Civilian Employees Current Department of Defense (DOD) Civilian Employee (non-Army) Domestic Defense Industrial Base/Major Range and Test Facilities Base Civilian Personnel Workforce Interagency Career Transition Assistance Plan Land Management Workforce Flexibility Act Military Spouses, under Executive Order (E.O.) 13473 Non-Department of Defense (DoD) Transfer Priority Placement Program, DoD Military Reserve (MR) and National Guard (NG) Technician Eligible Priority Placement Program, DoD Military Spouse Preference (MSP) Eligible Priority Placement Program, DoD MR and NG Preference Eligible Tech Receiving Disability Retirement Priority Placement Program, DoD Retained Grade Preference Eligible Reinstatement Veterans Employment Opportunity Act (VEOA) of 1998 In order to qualify, you must meet the education and 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 Computer Scientist: Degree: Bachelor's degree (or higher degree) in computer science or bachelor's degree (or higher degree) with 30 semester hours in a combination of mathematics, statistics, and computer science. At least 15 of the 30 semester hours must have included any combination of statistics and mathematics that included differential and integral calculus. In addition to meeting the basic requirement above, to qualify for this position you must also meet the qualification requirements listed below: Experience required for the GS-07 level: One year of specialized experience equivalent to at least the GS-05 grade level in the Federal service which includes: 1. Writing computer programs or software code for scientific, engineering, or technical use. 2. Reviewing basic software or computer system requirements. 3. Applying computer programming languages or software development principles. Experience required for the GS-09 level: One year of specialized experience equivalent to at least the GS-07 grade level in the Federal service which includes: 1. Developing computer programs or software applications for scientific, engineering, or technical use. 2. Reviewing software or computer system requirements. 3. Applying computer programming languages, software design principles, or software development methods. Experience required for the GS-11 level: One year of specialized experience equivalent to at least the GS-09 grade level in the Federal service which includes: 1. Developing software applications for scientific, engineering, or technical use. 2. Analyzing software or computer system requirements. 3. Applying computer programming principles, software design concepts, or software development practices. Experience required for the GS-12 level: One year of specialized experience equivalent to at least the GS-11 grade level in the Federal service which includes: 1. Developing software applications used for engineering, scientific, or technical purposes. 2. Analyzing computer system requirements involving software architecture, interfaces, interoperability, or integration. 3. Providing technical guidance on computer programming, software design, or software development practices. Experience required for the GS-13 level: One year of specialized experience equivalent to at least the GS-12 grade level in the Federal service which includes: 1. Developing software applications used for engineering analysis or simulation. 2. Analyzing computer system requirements involving software architecture, interfaces, interoperability, or integration. 3. Advising software development teams on computer science principles, programming technologies, or software design. Time in Grade Requirement: Applicants who have held a General Schedule (GS) position within the last 52 weeks must have 52 weeks of Federal service at the next lower grade or equivalent.

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: Click the Apply Online button. 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/13068565 Click the Submit Application button prior to 11:59 PM (ET) on 10/05/2026. 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. Access USA Hire using your unique assessment link. Access is granted through your USAJOBS login credentials. 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. 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. 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.