Mathematical Statistician (Data Scientist) (GS-14)

Summary

WHAT IS Large Business & International (LB&I) A description of the business units can be found at: https://www.jobs.irs.gov/about/who/business-divisions Position(s) are to be filled in following area(s): LBI - ADCCI - ADCCI, Data Solutions REVIEW THE ADDITIONAL INFORMATION BELOW FOR FURTHER DETAILS

Duties

The following are the duties of this position at the full working level. If this vacancy includes more than one grade and you are selected at a lower grade level, you will have the opportunity to learn to perform these duties and receive training to help you grow in this position. Serves as a technical expert with responsibility for the initiation, planning, implementation, controlling, modifying and executing of all or part of an entire project, including such tasks as formulation of workload estimates for program segments, specification of the methodology to be used, preparation of appropriate specifications and procedures, and review of computer systems specifications and materials and instructions needed for assuring the adequacy of the project's design and objectives. Takes a leadership role in the development of policy and guidance, and development of recommendations to improve the effectiveness of the organization. Formulates policies, develops program plans, designs and issues directives and instructions, and develops recommendations to improve business systems policy to business executives. As a technical expert on guidelines and policies, the incumbent interprets, develops, adapts, and coordinates analytical reviews of new policies, procedures, and program requirements of the Service and their impact on Servicewide operations and resources. Supports senior managers and executives in assessing impact of new or modified program requirements. Analyzes new or proposed legislation, regulations, or other authoritative guidance to determine impact on program operations. Identifies and analyzes critical problems and issues, the timing and sequence of key program events and milestones. Anticipates any adverse impact on budget and/or work plans. Develop innovative solutions, documents findings and conclusions, and make presentations. STANDARD POSITION DESCRIPTIONS (SPD): PD99378 Visit the IRS SPD Library to access the position descriptions.

Qualifications

Federal experience is not required. Experience may have been gained in the public sector, private sector or through Volunteer Service. One year of experience refers to full-time work; part-timework is considered on a prorated basis. To ensure full credit for your work experience, please indicate dates of employment by month/day/year, and indicate number of hours worked per week, on your resume. To qualify for this position, you must meet the following requirements by the closing date of this announcement: BASIC REQUIREMENTS (IOR) ALL GRADES: EDUCATION: A degree that included 24 semester hours of mathematics and statistics, of which at least 12 semester hours were in mathematics and 6 semester hours were in statistics. OR COMBINATION OF EDUCATION AND EXPERIENCE: A combination of education and experience -- at least 24 semester hours of mathematics and statistics, including at least 12 hours in mathematics and 6 hours in statistics, as shown in A above, plus appropriate experience or additional education. Evaluation of Education: Courses acceptable toward meeting the mathematics course requirement of paragraphs A or B above must have included at least four of the following: differential calculus, integral calculus, advanced calculus, theory of equations, vector analysis, advanced algebra, linear algebra, mathematical logic, differential equations, or any other advanced course in mathematics for which one of these was a prerequisite. Courses in mathematical statistics or probability theory with a prerequisite of elementary calculus or more advanced courses will be accepted toward meeting the mathematics requirements, with the provision that the same course cannot be counted toward both the mathematics and the statistics requirement. Evaluation of Experience: The experience offered in combination with educational courses to meet the requirements in paragraph B above should include evidence of statistical work such as (a) sampling, (b) collecting, computing, and analyzing statistical data, and (c) applying known statistical techniques to data such as measurement of central tendency, dispersion, skewness, sampling error, simple and multiple correlation, analysis of variance, and tests of significance. Without other indications of statistical experience, work required in the processing of numerical or quantified information by other than statistical methods is not considered appropriate qualifying experience. Examples of such nonqualifying work include statistical clerical work; statistical drafting; calculation of totals, averages, percentages, or other arithmetic summations; preparation of simple tables or charts; or verification of data by simple comparison or proofreading. AND SPECIALIZED EXPERIENCE GS-14: In addition to meeting basic requirements, to be eligible for this position at this grade level, you must have one (1) year of specialized experience at a level of difficulty and responsibility equivalent to the GS-13 grade level in the Federal service. Specialized experience for this position includes: Experience applying statistical methods, machine learning techniques, and data science methodologies to analyze structured and unstructured datasets and produce analytical results. Experience developing statistical models, predictive models, or machine learning models, including testing, validating, and evaluating model performance using established analytical methods. Experience acquiring, integrating, transforming, and analyzing data from multiple data sources using programming languages, statistical software, database technologies, or analytical platforms to support data-driven recommendations. Experience designing and executing analytical studies or experiments to evaluate business problems, test hypotheses, identify trends or patterns, and document analytical findings. Experience interpreting analytical results and presenting technical findings, recommendations, and visualizations to technical and non-technical stakeholders through written reports and oral briefings. Experience planning, coordinating, and executing multiple data science or analytical projects involving competing priorities, multiple stakeholders, and established project milestones. AND You must also meet the following requirement(s): TIME AFTER COMPETITIVE APPOINTMENT (TACA): Current civilian employees must have completed at least 90 days of federal civilian service since their latest non-temporary appointment from a competitive referral certificate, known as time after competitive appointment. For this requirement, a competitive appointment is one where you applied to and were appointed from an announcement open to "All US Citizens". TIME IN GRADE (TIG): For positions above the GS-05, applicants must meet applicable time-in-­grade requirements to be considered eligible. One year (52 weeks) at the next lower grade level is required to meet the time-in-grade requirements for the grade you are applying for. For positions at the GS-5, you cannot advance to the GS-05 if you have held a GS-02 in the past 52 weeks. There is no TIG restriction for GS-02, 03, or 04 positions. For more information on qualifications please refer to OPM's Qualifications Standards.

Requirements

Probationary Period - A person who is required to go through a probationary period and then is transferred, promoted, demoted, or reassigned before he or she completes such period is required to complete the remainder of the probationary period in the new position. Government Credit Card - Obtain and use a Government-issued charge card for business-related travel. ADDITIONAL REQUIREMENTS SHOWN IN QUALIFICATIONS SECTION

Education

A college or university degree generally must be from an accredited (or pre-accredited) college or university recognized by the U.S. Department of Education. For a list of schools which meet these criteria, please refer to Department of Education Accreditation page. FOREIGN EDUCATION: Education completed in foreign colleges or universities may be used to meet the requirements. You must show proof the education credentials have been deemed to be at least equivalent to that gained in conventional U.S. education program. It is your responsibility to provide such evidence when applying. Click here (Section 3, Explanation of Terms) or here for Foreign Education Credentialing instructions. We recommend choosing an evaluator from a member organization of one of the following national associations of credential evaluation services: National Association of Credential Evaluation Services (NACES) or Association of International Credentials Evaluators (AICE).

How you will be evaluated

Your qualifications will be evaluated based on your application materials (e.g., resume, supporting documents), your responses on the application questionnaire, and your responses to all assessments required for this position. Applicants who disqualify themselves will not be evaluated further. You will be assessed on the following competencies (knowledge, skills, abilities, and other characteristics): Attention to Detail Customer Service Decision Making Flexibility Influencing/Negotiating Integrity/Honesty Interpersonal Skills Learning 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 an assessment may also result in your removal from consideration. Rating: Your application will be evaluated in accordance with the Service's Merit Promotion Plan. A quality group rating will be used to rank and select eligible candidates. If qualified, you will be assigned to one of three quality level groups, Superior/Best Qualified, Highly Qualified and Qualified Referral: Eligible applicants rated in the highest quality group, may be referred to a selecting official for consideration. Candidates, if required to participate in a selection interview (telephonic and/or in person at the discretion of the Selecting Official in accordance with hiring practices), will be interviewed in quality group order. We will not reimburse costs related to the interview such as travel to and from the interview site. Performance Appraisal and Awards - Will not be used in determining your overall rating. Any performance appraisal/evaluation and award documentation you provide will be forwarded to the selecting official. The selecting official will review this documentation and give it due weight consideration during the overall selection process. IRS employees may obtain their most recent awards listing at https://persinfo.web.irs.gov/. If you are a displaced or surplus Federal employee (eligible for the Career Transition Assistance Plan (CTAP), you must receive a score of Highly Qualified or better to be rated as "well qualified" to receive special selection priority.

How to apply

Please read the entire announcement and all the instructions before you begin an application. To apply for 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. We are available to assist you during business hours (normally 8:00 a.m. - 4:00 p.m. ET, Monday - Friday). If applying online poses a hardship, please contact us by noon ET on 10/23/2026. To begin the application process, click the "Apply Online" button. You will be re-directed to USA STAFFING to continue your application process; answer the online questions. To preview the Application Questionnaire, please click the following link:https://apply.usastaffing.gov/ViewQuestionnaire/13087802. Upload all required documents. (To submit supporting documents, import documents from USAJOBS to the appropriate document types. If the document you need is not imported from USAJOBS, you may upload it directly into this application.) Click the Submit Application button. 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. Set aside up to 3 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. Visit the USA Hire Applicant Resource Center for practice assessments and assessment preparation resources. Visit USA Hire Online Help for online assessment information, system requirements, reasonable accommodations, and what to expect next. Reasonable Accommodations (RA): We provide reasonable accommodation to applicants with disabilities on a case-by-case basis; contact us if you require this for any part of the application and hiring process. To review reasonable accommodation policies and procedures please visit https://www.opm.gov/policy-data-oversight/disability-employment/reasonable-accommodations/. USA Hire Assessment 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. (https://appsupport-usastaffing.opm.gov/hc/en-us/sections/45063131363475-Reasonable-Accommodation-Information) To update your application, including supporting documentation: Visit USAJOBS - How to Update Application during the announcement open period, make updates or add supporting documentation, then continue through the entire application process and click Submit Application to send updates to the hiring agency. This option will no longer be available once the announcement has closed. To view the job status or your application status: Visit USAJOBS - How to View Application/Job 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.

Other information

Consider each location carefully when applying. If you are selected for a location, that location will become your official post of duty. In the event that a building is closed due to rent management, new hires may be placed in a local commuting location. Additional jobs may be filled from this announcement or any other source to fill these vacancies. Alternative work schedule, staggered work hours may be available. Salary: General Schedule (GS) Locality Pay tables may be found under Salaries & Wages. Cost-of-Living Allowances (COLA): Puerto Rico , Alaska & Hawaii includes COLA. See COLA Rates 2026.?