SENIOR DATA SCIENTIST/EMERGENCY APPOINTMENTS HOMELESSNESS

SENIOR DATA SCIENTIST/EMERGENCY APPOINTMENTS HOMELESSNESS

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SENIOR DATA SCIENTIST/EMERGENCY APPOINTMENTS HOMELESSNESS

Salary

$119,403.36 - $160,912.32 Annually

Location

Los Angeles County, CA

Job Type

Full time

Job Number

b1764A-EA

Department

MENTAL HEALTH

Opening Date

07/23/2025

• Description

• Benefits

• Questions

Position/Program Information

TYPE OF RECRUITMENT :

OPEN COMPETITIVE- EMERGENCY

EXAM NUMBER:

b1764A-EA

FILING START DATE:

7/24/2025 at 9:00 a.m. (PT)

This examination will remain open until the needs of the service are met and is subject to closure without prior notice.

This announcement is a re-post to reopen the filing period

The LA County Board of Supervisors recentlydeclared a local state of emergency for homelessness ( ,and the County is working to revise and expand our response to help all who are affected. We are looking for qualified and passionate individuals to help us in the mission of addressing issues like housing, mental health, and substance use. If you are looking for a new career that will directly benefit the population of LA County, this may be the opportunity for you.

The Department of Mental Health is seeking qualified candidates to fill emergency Senior Data Scientist vacancies related to the homelessness crisis.

Under the emergency order, applicants who meet the requirements may be hired for an initial period of up to 90 days, with an opportunity for permanent County employment.

Before the end of your initial work period, you will be assessed on your work performance. This assessment will be weighted 100%.

Those who successfully pass the assessment will be considered for permanent appointment to Senior Data Scientist.

Essential Job Functions

Collaborates with division, departmental, and countywide stakeholders 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.

Provides technical oversight to small teams of Data Scientists and Predictive Data Analysts as necessary to ensure project success.

Leads the discovery process with departmental stakeholders to document business requirements and frame business problems so that appropriate corresponding data science techniques and products can be identified and deployed.

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.

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.

Reviews proposals by Data Scientists and analysts regarding selection and improvement of data science tools and ensures that the team’s tools and systems are well documented.

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, stakeholders, and members of the public.

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.

Assists in implementing recommended business process changes in ways retain fidelity to best practices 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.

Coordinates with various functional teams to develop and implement products, services, tools, or business process changes resulting from the analysis.

Creates and validates advanced analytic products (e.g., Recommender Engines, Auto Classification algorithms, Predictive Scoring, geo-spatial clustering, NLP classifier, etc.) and places them in production; works with nontechnical program managers and staff to understand analytic products and to integrate them into departmental programs.

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. Provides ongoing tracking and monitoring of performance of decision systems and statistical models and troubleshoots and implements enhancements and fixes to systems as needed.

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.

Requirements

TRAINING AND EXPERIENCE:

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*.

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—s ix (6) years of experience*** 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. Two (2) years of this experience must have been in a lead capacity***.

ForOption II only, a Master’s or Doctoral 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 may substitute for up to two (2) years of the general experience.

Applicants must meet the above requirement(s) at the time of filing in order to be appointed to fill any vacancies related to this recruitment.

LICENSE :

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

PHYSICAL CLASS:

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.

SPECIAL REQUIREMENTS INFORMATION:

*Experience at the level of Data Scientist is defined as u nder general supervision, develops and applies methods to identify, collect, process, organize, and analyze structured and unstructured data using statistical prediction, inference, and optimization; effectively communicates results to County, departmental, and divisional decision makers to support data-driven program design and management.

ACCREDITATION INFORMATION:

**ACCREDITATION: Accredited institutions are those listed in the publications of regional, national or international accrediting agencies which are accepted by the Department of Human Resources. Publications such as American Universities and Colleges and International Handbook of Universities are acceptable references.

• Foreign degrees must be evaluated for equivalency to United States accredited institutions standards by an academic credential evaluation agency recognized by The National Association of Credential Evaluation Services ( (NACES)or The Association of International Credential Evaluators, Inc ( .(AICE). (see Employment Information under Accreditation Information).

• Official Transcripts is defined as a transcript that bears the college seal and states "official and/or copy" issued by the school's registrar office. A printout of the courses from the school's website is NOT considered official transcripts and will not be acceptedand may result in your application being incomplete and rejected.

Official transcripts MUST be submitted to verify the required coursework from the accredited institution, which shows the date the Bachelor's degree was awarded, with Registrar's signature and school seal, to the application at the time of filing, or e-mail to View email address on click.appcast.io within seven (7) calendar days from application submission or your application may be rejected.

In order to receive credit for Bachelor's or higher degree, you must attach a legible copy of the Official Diploma, Official Transcripts, or Official Letter from the accredited institution, which shows the date the degree was awarded, with Registrar's signature and school seal, to the application at the time of filing, or e-mail to View email address on click.appcast.io seven (7) calendar days from application submission or your application may be rejected.

***Lead capacityis defined as act as team or group leader to at least two (2) or more journey or lower-level employees with responsibility for 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.

Additional Information

EXAMINATION CONTENT :

Under the emergency order, applicants who meet the requirements may be hired for an initial period of up to 90 days, with an opportunity for permanent County employment.

Before the end of your initial work period, you will be assessed on your work performance. This assessment will be weighted 100%. Those who successfully pass the assessment will be considered for permanent appointment.

APPLICATION AND FILING INFORMATION

Applications must be submitted online only and will be reviewed for interview consideration on an ongoing basis. If you have not been contacted within 60 days and the recruitment remains open or reopens for filing, we encourage you to submit a new application. This will allow you to reaffirm your interest and update any relevant information.

Applications must be filed online by clicking on the green "Apply" button located on the top right corner of the screen.

Applicants must complete and submit their online applications and upload required documents (e.g. Official Transcripts, Resume, etc.) as attachment(s) during application submission, or send by email to View email address on click.appcast.io within 7 calendar days from date of application submission. Indicate the Exam Title on the subject line when sending required documents by email.

Fill out your application completely. The acceptance of your application will depend on whether you have clearly shown that you meet the Minimum Requirements. Provide any relevant education, training, and experience in the spaces provided so we can evaluate your qualifications for the job. For each job held, provide the name and address of your employer, your job title, beginning and ending dates, and description of work performed. If your application is incomplete, it will be rejected.

Many important notifications will be sent electronically to the email address provided on the application, so it is important that you provide a valid email address. Please add View email address on click.appcast.io as well as View email address on click.appcast.io and View email address on click.appcast.io to your email address and list of approved senders to prevent email notification from being filtered as span/junk/clutter mail.

You have the ability to opt out of emails from LA County. If you unsubscribe, you will not receive any email notification for any examination for which you apply with Los Angeles County. Regardless of whether you choose to unsubscribe, you can always check for notifications by logging into governmentjobs.com and viewing your profile inbox, which saves a copy of all emailed notices.

Plan to submit your online application well in advance before the deadline as you may be required to verify your email address. This only needs to be done once per email address, and if you already have a job seeker account on govermentjobs.com/careers/lacounty .gov

you can verify at any time by logging in and following the prompts. This is to enhance the security of your online application and to ensure you do not enter an incorrect email address.

IMPORTANT NOTES:

• Applications may be rejected at any stage of the examination and selection process.

• FALSIFICATION of any information may result in DISQUALIFICATION or RESCISSION OF APPOINTMENT.

• Utilizing VERBIAGE from the Class Specification, Minimum Requirements, and/or Special Requirement Information serving as your description of duties WILL NOT be sufficient to demonstrate that you meet the requirements. In doing so, your application will be REJECTED as INCOMPLETE.

SOCIAL SECURITY NUMBER LANGUAGE

Please include your Social Security Number for record control purposes. Federal law requires that all employed persons have a Social Security Number .

COMPUTER AND INTERNET ACCESS AT 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.

FAIR CHANCE EMPLOYER

The County of Los Angeles is a Fair Chance employer. Except for a very limited number of positions, you will not be asked to provide information about a conviction history unless you receive a contingent offer of employment . The County will make an individualized assessment of whether your conviction history has a direct or adverse relationship with the specific duties of the job, and consider potential mitigating factors, including, but 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 a conviction history, any convictions or court records which are exempted by a valid court order do not have to be disclosed.

NO SHARING USER ID AND PASSWORD

All applicants must file their applications online 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.

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. The Department of Human Resources 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 CONTACT:

HR Examinations Unit: View phone number on click.appcast.io

HR Examinations Unit Email: View email address on click.appcast.io

Analyst Contact Phone: Irene San, View phone number on click.appcast.io

Analyst Contact Email: View email address on click.appcast.io

ADA COORDINATOR PHONE: View phone number on click.appcast.io

TELETYPE PHONE : View phone number on click.appcast.io

CALIFORNIA RELAY SERVICES PHONES: View phone number on click.appcast.io

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 clickhere (

01

The information you provide on your application and this Supplemental Questionnaire will be evaluated and used to determine your eligibility to participate in the next phase of the examination process. 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 qualifying experience or education.

It is the applicant's sole responsibility to complete this Supplemental Questionnaire completely, correctly, and accurately.The experience you claim in this Supplemental Questionnaire must be consistent with the experience listed in your application. Comments such as "see resume or application" will not be considered as a valid response and credit will not be given.

Please read each question carefully and be as specific as possible when answering the questions by including all the information requested.

• Yes, I have read and understand the above information and instructions and, I certify that the information provide is accurate and I am aware that the information on the application, attachments, and supplemental questionnaire is subject to verification at any time in the examination and hiring process. I also understand that any false statements may result in disqualification or dismissal.

02

This position works with individuals experiencing homelessness.

• Yes, I understand and am willing to perform all necessary work duties.

03

Option I: Do you have 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*?

*Experience at the level of Data Scientist is defined as under general supervision, develops and applies methods to identify, collect, process, organize, and analyze structured and unstructured data using statistical prediction, inference, and optimization; effectively communicates results to County, departmental, and divisional decision makers to support data-driven program design and management.

• Yes

• No

04

Describe in detail your 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*.

Please be as specific as possible and include all information as requested. It is the applicant's sole responsibility to complete this questionnaire completely, correctly, and accurately. The experience you claim in this supplemental questionnaire must be consistent with experience listed on your application or resume.

If only the above keywords appear in your answer response and no supporting details related to the above question, credit will not be given. Additionally, please do not use "see resume and application", this is a non-response and credit will not be given.

Use the format below in your response:

EMPLOYER NAME / SECTION:

PAYROLL TITLE:

DATES OF EMPLOYMENT RELATED TO ABOVE EXPERIENCE:From(mm/year) –TO(mm/year)

LIST OF DUTIES RELATED TO ABOVE EXPERIENCE:

05

Option II: Do you have 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*** 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. Two (2) years of this experience must have been in a lead capacity***.

For Option II only, a Master's or Doctoral 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 may substitute for up to two (2) years of the general experience.

In order to receive credit for Bachelor's or higher degree, you must attach a legible copy of the Official Diploma, Official Transcripts, or Official Letter from the accredited institution, which shows the date the degree was awarded, with Registrar's signature and school seal, to the application at the time of filing, or e-mail to View email address on click.appcast.io within seven (7) calendar days from application submission or your application may be rejected.

***Lead capacity is defined as act as team or group leader to at least two (2) or more journey or lower-level employees with responsibility for 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?

• Yes

• No

06

If you answer to yes to question #5 above. Describe in detail your experience*** 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.

Please be as specific as possible and include all information as requested. It is the applicant's sole responsibility to complete this questionnaire completely, correctly, and accurately. The experience you claim in this supplemental questionnaire must be consistent with experience listed on your application or resume.

If only the above keywords appear in your answer response and no supporting details related to the above question, credit will not be given. Additionally, please do not use "see resume and application", this is a non-response and credit will not be given.

Use the format below in your response:

EMPLOYER NAME / SECTION:

PAYROLL TITLE:

DATES OF EMPLOYMENT RELATED TO ABOVE EXPERIENCE:From(mm/year) –TO(mm/year)

LIST OF DUTIES RELATED TO ABOVE EXPERIENCE:

07

Describe in detail your 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.

***Lead capacity is defined as act as team or group leader to at least two (2) or more journey or lower-level employees with responsibility for 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.

Please be as specific as possible and include all information as requested. It is the applicant's sole responsibility to complete this questionnaire completely, correctly, and accurately. The experience you claim in this supplemental questionnaire must be consistent with experience listed on your application or resume.

If only the above keywords appear in your answer response and no supporting details related to the above question, credit will not be given. Additionally, please do not use "see resume and application", this is a non-response and credit will not be given.Use the format below in your response:

EMPLOYER NAME / SECTION:

PAYROLL TITLE:

DATES OF EMPLOYMENT RELATED TO ABOVE EXPERIENCE:From(mm/year) –TO(mm/year)

LIST OF DUTIES RELATED TO ABOVE EXPERIENCE:

08

Are you proficient in American Sign Language (ASL)?

• Yes

• No

09

Do you have American Sign Language (ASL) certification? Note: Please attach a legible copy of your certificate to your application at the time of filing. If you are unable to attach your certificate, please email your certificate to View email address on click.appcast.io within seven (7) calendar days from application submission.

• Yes, I have attached ASL certification to my online application.

• Yes, I will email ASL certification to View email address on click.appcast.io within (7) calendar days from application submission.

• No, I do not have ASL certification.

10

Do you have a County American Sign Language (ASL) certification? Note: Please attach a legible copy of your certificate to your application at the time of filing. If you are unable to attach your certificate, please email your certificate to View email address on click.appcast.io within seven (7) calendar days from application submission.

• Yes, I have attached a County American Sign Language certification to my online application.

• Yes, I will email County American Sign Language certification to View email address on click.appcast.io within (7) calendar days from application submission.

• No, I do not have a County American Sign Language certification.

Required Question

Employer

County of Los Angeles

Address

Los Angeles, California, 90010

Website

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