DATA SCIENTIST

Position/Program Information

LOS ANGELES COUNTY DISTRICT ATTORNEY'S OFFICE

EXAM TITLE
DATA SCIENTIST

TYPE OF RECRUITMENT

Open Competitive Job Opportunity

EXAM NUMBER

A1763A-R

APPLICATION FILING PERIOD

Thursday, October 24, 2024 at 8:00 A.M. (PT) through Thursday, November 7, 2024, BEFORE 5:00 P.M. (PT)

With more than 10 million residents, Los Angeles County is the most populous county in the nation. As the largest employer in Southern California, over 112,000 employees in more than 36 departments provide vital public services as diverse as law enforcement, property assessment, public health protection, water conservation, cultural activities and many more.

We are dedicated professionals committed to preserving the dignity and integrity of the workplace as well as protecting the rights of each employee. With more than 2,300 different job descriptions, the County offers a lifetime of opportunities and careers! We offer one of the strongest public-sector benefits packages in the nation. Join us and discover a rich selection of health care options, robust retirement plans, and the flexibility to work, relax, and rejuvenate in order to reach your fullest personal and professional potential.

What does a Data Scientist do?
The Data Scientist under general supervision, will develop and apply methods to identify, collect, process, organize, and analyze structured and unstructured data using statistical prediction, inference, and optimization; effectively communicate results to County, departmental, and divisional decision makers to support data-driven program design and management.

Check Out Our Outstanding Benefits! CLICK HERE to see a list of employee benefits!

Essential Job Functions

• Collaborates with division, department, and countywide stakeholders to solicit, define, and manage data science projects from conception through implementation, including identifying and developing statements of business problems; conducting exploratory data analysis and data mining; developing model specification requirements; and conducting advanced statistical analyses.
  
• Develops and presents visualizations of findings and recommendations that can be used to support business decisions and allocate resources.
  
• Works with departmental stakeholders to document business requirements and helps frame business problems so that appropriate corresponding data science techniques can be identified and applied.
  
• Collaborates with 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.
  
• Works with departmental Information Technology organization to support collection, integration, and retention requirements for large sets of structured and unstructured data from various sources and consults with data engineers and architects on the design and architecture of relevant data systems and processes.
  
• Collaborates with other Data Scientists, Analysts, and IT staff to select, evaluate, improve, and document tools and systems in order to strengthen divisional and departmental analytic capacity.
  
• Independently conducts advanced analytical studies for the resolution of business problems and transfigures data into critical information by selecting and deploying appropriate advanced statistical techniques such as machine learning, bivariate and multivariate analyses, predictive/prescriptive analytics, and optimization.
  
• Uses statistical computer scripting, domain-specific, and programming languages and other software and tools to digest, manipulate, prepare, augment, evaluate, analyze, summarize, and visualize data.
  
• Plans, designs, and manages experiments, consumer surveys, and other data collection projects to augment existing sources of data as necessary to solve business problems.
  
• Reviews the work of Predictive Data Analysts and other lower-level analysts assigned to project for quality-control purposes.
  
• Conveys findings and conclusions of work 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 that both retain fidelity to best practices identified through the analysis and recognize the operational realities underlying existing business processes.
  
• Works with functional teams to develop and implement products, services, and tools, such as dashboards and reports, emerging from the analysis. Contributes to advanced analytic products (e.g., Recommender Engines, Auto Classification algorithms, Predictive Scoring, geo-spatial clustering, NLP classifier, etc.) and helps place them in production.
  
• Recommends ongoing improvements to methods and algorithms that lead to findings, including new information.
  
• Provides business metrics for departmental projects to show improvements both 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.
  
• Accesses ongoing training and professional development to maintain familiarity with current industry and academic research to apply the latest and most useful statistical learning techniques to help extract pattern and trends from data.
  
• Develops relationships with local academic data science programs to foster recruitment of data science interns and is responsible for overseeing their work on departmental data science projects.
  

Requirements

SELECTION REQUIREMENTS:

Two (2) years of experience applying machine learning, predictive analytics, data management, and hypothesis-driven data analysis to produce actionable recommendations to support data-driven program, policy, and operational decision-making.

WITHHOLD INFORMATION: NO WITHHOLDS WILL BE ALLOWED FOR THIS EXAMINATION. REQUIRED EXPERIENCE MUST BE FULLY MET AND INDICATED ON THE APPLICATION BY THE LAST DAY OF FILLING.

ENDORSEMENT OF LOS ANGELES COUNTY QUALIFICATIONS:
County employees who wish to meet the requirements using out-of-class experience must provide official documentation such as additional responsibility bonus, out-of-class bonus, temporary assignment bonus, or reclassification study from CEO Classification with your application at the time of filing or within seven (7) calendar days from application submission. Out-of-class duties should be accurately described in the application work history, and questionable experience will be verified through the departmental HR Manager when necessary.

LICENSE:
A valid California Class C Driver's 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.

Additional Information

OUR ASSESSMENT PROCESS:
This assessment will consist of two (2) parts:

PART I: Multiple Choice and/or Simulation Assessments weighted at 50% assessing:

• Deductive Reasoning
• Professional Potential
• Achievement
• Working Relationships
• Analyzing Information
• Learning Quickly
• Generating New Ideas
• Using Time Efficiently
• Working to High Quality Standards
• Adapting to Change
• Coping with Uncertainty
• Willingness to Learn
• Responsibility

Candidates must achieve a passing score of 70% or higher on Part I to proceed to Part II of this examination.

PART II: Multiple Choice and/or Simulation Assessments weighted at 50% assessing:

• Data Science including: Probability and Statistics, Machine Learning Algorithms and Implementation, and Setting Up Machine Learning Experiments
  

MULTIPLE-CHOICE AND/OR SIMULATION ASSESSMENT(S) ARE NOT REVIEWABLE BY CANDIDATES PER CIVIL SERVICE RULE 7.19.

APPLICANTS MUST MEET THE REQUIREMENTS AND ACHIEVE A PASSING SCORE OF 70% OR HIGHER ON EACH WEIGHTED PART OF THE EXAMINATION IN ORDER TO BE PLACED ON THE ELIGIBLE LIST.

Scores cannot be given over the telephone.

WHAT TO EXPECT NEXT:
You will move through the Assessment Process and if you pass, we will place your results on a list. The list of everyone who passed is valid for twelve (12) months.

TRANSFER OF TEST COMPONENTS:

• Applicants who have taken identical components recently for other exams may have their responses automatically transferred to this examination.
• This examination contains test components that may be used in the future for new examinations and your test responses may be transferred.

Please note: All notifications including invitation letters will be sent electronically to the email address provided on the application. It is important that you provide a valid email address. DO NOT select "off" under Email Preferences within your profile or click "unsubscribe" on our notices if you would like the County of Los Angeles to notify you regarding your application status, test schedules, and other important information pertaining to your candidacy for this position.

Please add the below email addresses to your email address book and list of approved senders to prevent email notifications from being filtered as spam/junk/clutter mail.

• ecervantes@hr.lacounty.gov
• info@governmentjobs.com
• talentcentral@shl.com
• noreply@proctoru.com
• donot-reply@amcatmail.com

TEST PREPARATION:
Study guides and other test preparation resources are available to help candidates prepare for employment tests. While the guides will help you prepare for the test, we advise you to review all related materials that you deem necessary.

• An interactive, Online Test Preparation System for taking practice tests may be accessed on the Department of Human Resources website at http://hr.lacounty.gov/ . Please click on "Find A Job" and then "Job Search Toolkit." Test preparation information is located under the "Employment Test Assistance" section.
• Additional online practice tests are available at https://www.shldirect.com/en-us/practice-tests .

VACANCY INFORMATION:
The resulting eligible list will be used to fill vacancies in the District Attorney's Office throughout Los Angeles County.

AVAILABLE SHIFT: Any

APPLICATION AND FILING INFORMATION:
Applications must be filed online only. We must receive your application before 5:00 p.m., PT, on the last day of filing. Applications submitted by U.S. mail, fax, or in person will not be accepted. Apply online by clicking on the "Apply" green button at the top right of this posting. You can also track the status of your application using this website.

Plan to submit your online application well in advance of the November 7, 2024 BEFORE 5:00 p.m. (PT) deadline as you may be required to verify your email address. This only needs to be done once per email address, and if you have already have a job seeker account on governmentjobs.com/careers/lacounty, 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.

Fill out your application completely. The acceptance of your application depends on whether you have clearly shown that you meet the Requirements to Qualify as listed on this job posting. Provide any relevant job experience in the spaces provided so we can evaluate your qualifications for the job. For each job held, give the name and address of your employer, your job title, beginning and ending dates, number of hours worked per week, and description of work performed. If your application is incomplete, it will be rejected.

IMPORTANT: Please note that all information included in the application materials is subject to verification at any point during the examination and hiring process, including after an appointment has been made. Falsification of any information may result in disqualification or rescission of appointment. Utilizing verbiage from the Class Specification and Minimum requirements serving as your description of duties will not be sufficient to demonstrate that you meet the requirements. Doing so may result in an incomplete application and you may be disqualified.

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.
SOCIAL SECURITY NUMBER: 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 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. NO SHARING OF USER ID AND PASSWORD: All applicants must file their application 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.

TESTING ACCOMMODATION:
If you require an accommodation to fairly compete in any part of the assessment process, you will be given the opportunity to make a request when completing your application. Please note, you may be required to submit documentation from a qualified medical provider or other qualified professional to support your request for a testing accommodation.

Testing Accommodations Email: TestingAccommodations@hr.lacounty.gov
Teletype Phone: (800) 735-2929
California Relay Services Phone: (800) 735-2922
Department Contact Name: Elia Cervantes
Department Contact Phone: (213) 738-2037
Department Contact Email: ecervantes@hr.lacounty.gov
Exam Number: A1763A-R

For detailed information, please click here

Closing Date/Time: 11/7/2024 5:00 PM Pacific

• 

• Los Angeles County

• (800) 970-5478

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