SENIOR DATA SCIENTIST

Salary : $121,788.00 - $164,128.32 Annually
Location : Los Angeles County, CA
Job Type: Full time
Job Number: Y1764B
Department: HEALTH SERVICES
Opening Date: 09/30/2026

Position/Program Information
EXAM NUMBER
Y1764B
TYPE OF RECRUITMENT

We welcome applications from anyone.
NO OUT-OF-CLASS EXPERIENCE WILL BE ACCEPTED FOR THIS EXAMINATION.
FILLING DATE
The application filing period will begin on October 28, 2026 - Continuous.

We will keep accepting applications until the position is filled. The application window may close unexpectedly once we have enough qualified candidates.
LA Health Services is LA County's integrated healthcare system and the second-largest public health system in the nation. Our system includes four public hospitals, more than 20 community health centers, Emergency Medical Services (EMS), Correctional Health Services, and community-based programs that connect people to care where they are.
We serve as the safety net for more than 10 million residents, providing care regardless of ability to pay, insurance coverage, or immigration status. As one connected system, we deliver outstanding care-from prevention and primary care to emergency, specialty, trauma, and recovery services across Los Angeles County.

With more than 2.9 million visits annually and a workforce of over 23,000 dedicated staff, LA Health Services is proud to deliver high-quality, compassionate, and accessible care to everyone, no matter how they come through our doors.
Explore our one system of hospitals and community health centers: Our Locations - Health Services Los Angeles County

Check Out Our Outstanding Benefits!
We offer one of the strongest public-sector benefits packages in the country. Join us and discover a rich selection of health care options, robust retirement plans and the flexibility to work, relax and rejuvenate as you reach your fullest personal and professional potential. Click here to see comprehensive information regarding County employee benefits.

LA Health Services seeking a dedicated Senior Data Scientist to join our team. Whether you're working in community clinics or hospitals, this is an opportunity to grow your career while serving diverse communities across LA County.

Our Mission:
To advance the health of our patients and our communities by providing outstanding care.

The Team Member We Are Looking for Will:
Under general supervision, leads the development and application of methods to identify, collect, process, organize, and analyze structured and unstructured data using advanced statistical prediction, inference, and optimization; effectively communicates results to County, departmental, and divisional decision makers and provides ongoing support to strengthen data-driven program design and management.

Essential Job Functions
What You'll Be Doing:

• Develops and maintains inpatient bed utilization and staffing forecast models and scenario-planning tools to support capacity planning and operational decision-making.
• Develops clinical notes Natural Language Processing (NLP) and machine learning-based anomaly detection to identify trends and potential coding gaps affecting data quality, specifically KPIs and quality measures.
• Collaborates with division, departmental, and countywide partners to solicit, define, and manage highly complex data science projects from conception through implementation; ensures that projects result in actionable insights and recommendations that can be used to support business decisions and allocate resources; and provides ongoing consultation during program implementation of recommendations as necessary to ensure program fidelity.
• Conducts and coordinates statistical inference of data and conveys findings and conclusions orally, in writing, visually, in presentations, and by developing interactive tools as appropriate to communicate effectively with a wide range of audiences, including technical and nontechnical staff, partners, and members of the public.
• Provides technical oversight to small teams of Data Scientists and Predictive Data Analysts as necessary to ensure project success.
• Recommends ongoing improvements to methods and algorithms that lead to findings, including new information.
• Creates and monitors performance of automated-detection systems and provides business metrics for overall project to show improvements initially and over multiple iterations.
• Leads the discovery process with departmental partners to document business requirements and frame business problems so that appropriate corresponding data science techniques and products can be identified and deployed.
• Develops and maintains a high level of expertise in statistical programming languages and packages and other software tools; provides training and support to Data Scientists and Predictive Data Analysts as necessary; and ensures the quality of code and programming logic generated by the data science team.
• Works with program staff to understand the implications of analyses and to ensure that findings are actionable and support data-driven program, policy, and operational decision-making.
• Develops and maintains operational and service line KPI dashboards spanning clinical operations, quality and patient outcomes, patient experience, and financial sustainability to support data-driven decision-making.
• Collaborates with other department subject matter experts to understand, identify, and select available and relevant sources of data for use cases, including internal, external, structured, and unstructured data sources; and provides guidance to other department data experts in the selection and transformation of such sources.
• Maintains version-controlled notebooks, model cards, technical documentation, and reproducible workflows within the Azure data environment.
• Coordinates with various functional teams to develop and implement products, services, tools, or business process changes resulting from the analysis.
• Troubleshoots deployed analytical solutions and implements corrective enhancements to maintain data and model accuracy.
• Assists in implementing recommended business process changes in ways retain fidelity to standard methodologies identified through the analysis and recognize the operational realities underlying existing business processes; provides ongoing consultation as recommended changes and new programs grow and evolve, including recommending modifications to adopted goals and metrics.
• Tracks and manages data science project activities, landmarks, and blockers through Jira and established sprint cycles.
• In conjunction with the Information Technology organization, supports collection, integration, and retention requirements for large sets of structured and unstructured data from disparate sources; acts as a resource for senior data engineers and architects in the selection and design of systems for use by the data science team.

Requirements
REQUIREMENTS TO QUALIFY:

Option I:

Two (2) years of experience carrying out complex data science projects that included independently developing and applying methods to identify, collect, process, structure, and analyze data using statistical prediction, inference, and optimization to support data-driven program design and management, at a level equivalent to the Los Angeles County class of Data Scientist*.
*You may still qualify even if your job title isn't exactly the same as the ones listed. What matters is that your experience is at a similar level - meaning your job involves similar responsibilities, requires comparable skills and knowledge, and takes place within a similar organizational structure. Please provide a clear explanation of your experience to demonstrate that it is at the appropriate level.
Option II:
A bachelor's degree from an accredited college or university in a field of applied research such as Data Science, Machine Learning, Mathematics, Statistics, Business Analytics, Psychology, or Public Health that included 12 semester or 18 quarter units of coursework in data science, predictive analytics, quantitative research methods, or statistical analysis** -AND- Six (6) years of experience, including two (2) years in a lead capacity***, applying and overseeing the application of machine learning, predictive analytics, data management, and hypothesis-driven data analysis to make actionable recommendations to support program, policy, and operational decision-making.

A master's or doctoral degree** from an accredited college or university in a field of applied research such Data Science, Machine Learning, Mathematics, Statistics, Business Analytics, Psychology, or Public Health may substitute for up to two (2) years of experience.

***For this examination, lead capacity is defined as assigning, coordinating, and reviewing the work, ensuring proper work methods are followed and providing technical assistance and training. A lead person is a Senior member of the Data Science team that provides technical assistance to other team members but does not supervise.
LICENSE:

A valid California Class C Driver License or the ability to utilize alternative method of transportation when needed to carry out job-related essential functions

Physical Class II - Light: This class includes administrative and clerical positions requiring light physical effort that may include occasional light lifting to a 10-pound limit and some bending, stooping, or squatting. Considerable ambulation may be involved.

DESIRABLE QUALIFICATIONS:
Additional credit will awarded to applicants who possess the following:

• If you are qualified under option I: Additional years of experience beyond the requirements.
• If you are qualified under option II: Additional experience in excess of two (2) years of experience in a lead capacity*** applying and overseeing the application of machine learning, predictive analytics, data management, and hypothesis-driven data analysis to make actionable recommendations to support program, policy, and operational decision-making.

SPECIAL REQUIREMENTS INFORMATION:
**In order to receive credit for the required degree, license, and certificate/s from an accredited institution, you must include a legible copy of your official diploma, official transcripts, or official letter from the accredited institution which shows the area of specialization. Your official transcripts from an accredited institution must show the degree conferred, the area of specialization, and the relevant course work specified in the requirements. The required degree should show the date the degree was conferred and be in English. If not in English, then translation is required. International degrees must be evaluated for equivalency to U.S. standards. Include official copies of all relevant documents. For more information on our standards for educational documents, please visit:

Documents marked as unofficial will not be accepted. We do not accept password-protected documents. Please make sure documents are unlocked.
If you are unable to attach the required documents to your application at the time of filing, you may email them within seven (7) calendar days from the application date to Darlene Beamon-Thomas at Please include your full name (as it appears on your application), the exam number, and the exam title in the email message.

Additional Information
EXAMINATION CONTENT:

Training & Experience (T&E) Evaluation:This assessment type will evaluate the experience you list on the online application and supplemental questionnaire and assign a score based on a standardized scoring system. This part of the assessment is worth 100% of your total score and assesses: Requirements to Qualify, Desirable Qualifications, and Supplemental Questionnaire responses.
Applicants must receive a passing score of 70% or higher on the assessment to be added to the eligible list.
ELIGIBILITY AND VACANCY INFORMATION:
We process applications as we receive them. If you pass the assessment, we will place you on a list for 12 months. Hiring managers within LA Health Services will use this list to fill vacancies as they become available.

Successful applicants that were added to the eligible list may not apply for this examination for twelve (12) months following the date of being placed on the eligible list. Applications received before expiration from the eligible list will be rejected.

Applicants who did not meet the requirements may reapply after 30 days of their most recent application if the exam is still open for filing,

AVAILABLE SHIFTS:
Appointees may be required to work any shift, including evenings, nights, weekends, and holidays.

APPLICATION AND FILING INFORMATION:
We only accept applications filed online. Applications submitted by U.S. mail, fax, or in person are not accepted. Apply online by clicking on the green "Apply" button at the top right of this posting. This website can also be used to get application status updates. New email addresses need to be verified. This only needs to be done once per email address and can be done at any time by logging in to and following the prompts. This is to enhance the security of the online application and prevent incorrect email addresses.

Please fill out the application completely! The acceptance of your application depends on whether you have clearly shown that you meet the requirements. Provide relevant job experience including employer's name and address, job title, beginning and ending dates, number of hours worked per week, and description of work performed.

We may verify information included in the application at any point during the examination and hiring process, including after an appointment has been made. Falsification of information could result in refusal of application or rescission of appointment. Copying verbiage from the requirements or class specification as your work experience will not be sufficient to demonstrate meeting the requirements. Doing so may result in an incomplete application and may lead to disqualification.
EMAIL VERIFICATION INFORMATION:
We will send notifications to the email address provided on the application, so it is important that you provide a valid email address. If you choose to unsubscribe or opt out from receiving our emails, it is possible to view notices by logging into governmentjobs.com and checking the profile inbox. It is every applicant's responsibility to take steps to view correspondence, and we will not consider claims of missing notices to be a valid reason for re-scheduling an exam part. Register the below domains as approved senders to prevent email notifications from being filtered as spam/junk mail.

SOCIAL SECURITY NUMBER:
Federal law requires that all employed persons have a Social Security Number, so include yours when applying.

NO SHARING OF USER ID AND PASSWORD:
All applicants are required file their application using their own user ID and password. Using a family member or friend's user ID and password may erase a candidate's original application record.

COMPUTER AND INTERNET ACCESS AT PUBLIC LIBRARIES:
For candidates who may not have regular access to a computer or the internet, applications can be completed on computers at public libraries throughout Los Angeles County.

ANTI-RACISM, DIVERSITY, AND INCLUSION (ARDI):
The County of Los Angeles recognizes and affirms that all people are created equal and are entitled to all rights afforded by the Constitution of the United States. LA Health Services is committed to promoting Anti-racism, Diversity, and Inclusion efforts to address the inequalities and disparities amongst race. We support the ARDI Strategic Plan and its goals by improving equality, diversity, and inclusion in recruitment, selection, and employment practices.

DEPARTMENT CONTACTS:

• For any inquiries about the position or assistance with the application process, please contact Darlene Beamon-Thomas at Darlene is here to guide you every step of the way.
• Department Contact Phone:
• Teletype Phone:
• California Relay Services Phone:
• For Accommodation requests, please contact our Accommodation Coordinator, via
• Please reference Exam Number: Y1764B in all communications during the application process.

COUNTY OF LOS ANGELES

Employment Information

Any language contained in the job posting supersedes any language contained below.

This document is intended to provide general information about the recruitment process of the County of Los Angeles. Applicants with questions about a specific job posting should contact the exam analyst listed on the posting.

Equal Employment Opportunity/Non-Discrimination Statement:
The County of Los Angeles is an Equal Employment Opportunity Employer and is committed to non-discrimination in the County workforce, regardless of age (40 and over); ancestry; color; ethnicity; religious creed; protected family or medical leave status; disability; marital status; medical condition; genetic information; military and veteran status; national origin; race ; sex; gender; sexual orientation; or any other characteristic protected by State or federal law. For more information, please visit:
Testing Accommodations for Applicants:
The County of Los Angeles complies with all federal and state disability laws and makes reasonable accommodations for qualified applicants and employees with disabilities. If a reasonable accommodation is needed to participate in the job application process, please contact the testing accommodation coordinator listed on the job posting. Hearing impaired applicants with telephone teletype equipment may leave messages by calling the teletype phone number on the job posting. For more information on accommodations, please visit:
Fair Chance:
The County of Los Angeles is a Fair Chance employer. Except as otherwise permissible under applicable laws, you will not be asked to provide information about conviction history unless you receive a conditional offer of employment. The County will make an individualized assessment of whether your conviction history has a direct and adverse relationship with the specific duties of the job, and will also consider potential mitigating factors, which may include, but is not limited to, evidence and extent of rehabilitation, recency of the offense(s), and age at the time of the offense(s). If asked to provide information about conviction history, any convictions or court records which are exempted by a valid court order do not have to be disclosed. Qualified applicants with arrest or conviction records will be considered for employment in accordance with County Fair Chance Policies and the Fair Chance Act (Gov. Code Section 12952).
Employment Eligibility:
Final appointment is contingent upon verification of U.S. citizenship or the right to work in the United States.
Career PathFinder:
Resources to help current and prospective employees plan a career with Los Angeles County are available. To explore career paths to and from nearly all job titles, please visit our interactive Career PathFinder application at
Veteran's Credit:
Pursuant to the County Charter and County policy, in all open competitive examinations (i.e., examinations open to everyone), the County of Los Angeles will add a credit of 10 percent of the total credits specified for such examination to the final passing score of an honorably discharged veteran, as well as the spouse of a deceased or disabled veteran, who served in the Armed Forces of the United States under specific conditions.
For more information on veteran's credit, please visit:
Revised September 2025
For detailed information, please click
01

The information you provide on this supplemental questionnaire will be evaluated and used to determine your eligibility to participate in the next phase of the examination process.

CHECK YOUR ANSWERS CAREFULLY.

Any mistakes you make and/or any incomplete responses you provide in completing these questions will be used to disqualify your application, even if you possess the education and qualifying experience. Be as specific as possible and include all information requested. Comments such as "see resume" or "see application" will NOT be considered as a response. We may verify information included in the application at any point during the examination and hiring process, including after an appointment has been made. Falsification of information on your application and any attachments will result in refusal of application, rescission of appointment, or restriction of application to future recruitments.

• I understand the above information and instructions.

02

Many important notifications and results notices, will be sent electronically to the email address provided on the application. It is important that you provide a valid email address. Please add and to your email address book and to the list of approved senders to prevent email notifications from being filtered as spam/junk/clutter mail.Applicants can opt out of emails from LA County. If you unsubscribe, you will not receive any email notification for any examination for which you apply to Los Angeles County. Regardless of whether you choose to unsubscribe, you can always check for notifications by logging in to governmentjobs.com and viewing your profile inbox, which stores copies of all emailed notices. It is the applicant's responsibility to take the above steps to view correspondence. Los Angeles County will not consider claims of not viewing or receiving notifications as a valid reason for a late test administration, rescheduling, or an extension of the appeal rights period.

• I understand the above information and instructions.

03

EXPERIENCE REQUIREMENT:
How many years of experience do you have in carrying out complex data science projects that included independently developing and applying methods to identify, collect, process, structure, and analyze data using statistical prediction, inference, and optimization to support data-driven program design and management, at a level equivalent to the Los Angeles County class of Data Scientist?

You may still qualify even if your job title isn't exactly the same as the ones listed. What matters is that your experience is at a similar level - meaning your job involves similar responsibilities, requires comparable skills and knowledge, and takes place within a similar organizational structure. Please provide a clear explanation of your experience to demonstrate that it is at the appropriate level.

• Less than 2 years
• 2 and more years
• No Experience.

04

If you indicated that you have experience for Question 3, please provide a detailed description of your experience. You MUST provide ALL requested information in the space below:1. Payroll Title:
2. Name of Employer/ Department / Division / Section / Unit:
3. Name and Title of Supervisor and Contact Information:
4. Dates of Employment (mm/yy): FROM _____ TO _____
5. Hours Worked per Week:
6. Detailed Description of Duties:

List all experiences that apply.

Please note, the information requested above should align with the information you entered in the Work Experience Section of the application.

If you do not have any experience in this area, please type "N/A" in the space below.
05

OPTION II - EDUCATION REQUIREMENT:
Do you possess a Bachelor's degree from an accredited college or university in a field of applied research such as Data Science, Machine Learning, Mathematics, Statistics, Business Analytics, Psychology, or Public Health that included 12 semester or 18 quarter units of coursework in data science, predictive analytics, quantitative research methods, or statistical analysis?

In order to receive credit for the required degree, license, and certificate/s from an accredited institution, you must include a legible copy of your official diploma, official transcripts, or official letter from the accredited institution which shows the area of specialization. Your official transcripts from an accredited institution must show the degree conferred, the area of specialization, and the relevant course work specified in the requirements. The required degree should show the date the degree was conferred and be in English. If not in English, then translation is required. Include official copies of all relevant documents. For more information on our standards for educational documents, please visit: _PPG123.pdfDocuments marked as unofficial will not be accepted. We do not accept password-protected documents. Please make sure documents are unlocked.

• Yes, I have attached a legible copy of my diploma/official transcripts to my applicaiton.
• Yes, I will email a legible copy to Darlene Beamon-Thomas at within seven (7) calendar days from filing my application.
• Not Applicable.

06

If you selected one of the "YES"options for Question 5, please list ALL qualifying coursework below and include the following information (you may group courses taken based on the semester or quarter and year in which they were taken) :1. Name of College or University:
2. Degree Conferred Title:
3. Title of Course/s and/or Subject/s:
4. Semester/Quarter and Year Taken:
5. Number of Semester/Quarter Units Earned (Indicate whether semester/quarter units, e.g., "6 semester"):
If you did not complete any accounting courses, enter "Not Applicable."
07

OPTION II - EXPERIENCE REQUIREMENT:
How many years of experience do you have in applying and overseeing the application of machine learning, predictive analytics, data management, and hypothesis-driven data analysis to make actionable recommendations to support program, policy, and operational decision-making?

• Less than 4 years
• 4 years but less than 6 years
• 6 or more years
• No Experience.

08

If you indicated that you have experience for Question 7, please provide a detailed description of your experience. You MUST provide ALL requested information in the space below:1. Payroll Title:
2. Name of Employer/ Department / Division / Section / Unit:
3. Name and Title of Supervisor and Contact Information:
4. Dates of Employment (mm/yy): FROM _____ TO _____
5. Hours Worked per Week:
6. Detailed Description of Duties:

List all experiences that apply.

Please note, the information requested above should align with the information you entered in the Work Experience Section of the application.

If you do not have any experience in this area, please type "N/A" in the space below.
09

OPTION II - LEAD EXPERIENCE REQUIREMENT:
How many years of experience do you have in a lead capacity, applying and overseeing the application of machine learning, predictive analytics, data management, and hypothesis-driven data analysis to make actionable recommendations to support program, policy, and operational decision-making?

For this examination, lead capacity is defined as assigning, coordinating, and reviewing the work, ensuring proper work methods are followed and providing technical assistance and training. A lead person is a Senior member of the Data Science team that provides technical assistance to other team members but does not supervise.

• Less than 2 years
• 2 or more years
• No Experience.

10

If you indicated that you have experience for Question 9, please provide a detailed description of your experience. You MUST provide ALL requested information in the space below:1. Payroll Title:
2. Name of Employer/ Department / Division / Section / Unit:
3. Name and Title of Supervisor and Contact Information:
4. Dates of Employment (mm/yy): FROM _____ TO _____
5. Hours Worked per Week:
6. Detailed Description of Duties:

List all experiences that apply.

Please note, the information requested above should align with the information you entered in the Work Experience Section of the application

If you do not have any experience in this area, please type "N/A" in the space below.
11

Do you possess a Master's or Doctoral degree from an accredited college or university in a field of applied research such Data Science, Machine Learning, Mathematics, Statistics, Business Analytics, Psychology, or Public Health?

• Yes, I have attached a copy of my degree or official transcripts to my application.
• Yes, I will email a copy of my degree or official transcripts to within 7 calendar days of my application submission.
• Not Applicable.

12

If you indicated "YES" to Question 11, you MUST provide ALL of the following information in the space below:1. Degree(s) Conferred Title(s):

2. Name of Institution Which Conferred the Degree(s):

3. Graduation Date (mm/yyyy).
In order to receive credit for the required degree from an accredited institution, you must include a legible copy of your official diploma, official transcripts, or official letter from the accredited institution which shows the area of specialization. Your official transcripts from an accredited institution must show the degree conferred, the area of specialization, and the relevant course work specified in the requirements. The required degree should show the date the degree was conferred and be in English. If not in English, then translation is required. International degrees must be evaluated for equivalency to U.S. standards. Include official copies of all relevant documents. For more information on our standards for educational documents, please visit: _PPG123.pdf.Documents marked as unofficial will not be accepted. We do not accept password-protected documents. Please make sure documents are unlocked.

Required Question