Assessor's Mapping Technician

The Position

Why join the Contra Costa County Assessor's Office?
The Contra Costa County Assessor’s Office discovers and assesses all property within the County; produces and delivers an assessment roll by July 1 of each year; values all real property; audits all entities doing business in the County and values all taxable personal property; establishes and maintains over 12,000 maps for assessment purposes; delineates every parcel of land in the County; and provides a public information service to assist taxpayers with questions about property ownership and assessment.

The Contra Costa County Assessor’s Office is currently seeking qualified candidates to fill two (2) permanent, full-time Assessor’s Mapping Technician positions within the mapping division. This position plays a vital role in the creation and maintenance of the Assessor’s mapping data.

Assessor’s Mapping Technicians are responsible for performing technical mapping and drafting duties using Geographic Information Systems (GIS), Computer Aided Drafting (CAD) systems, and other mapping technologies. They create, maintain, and update spatial and cartographic data for property assessment and public use.

The ideal candidates will be highly motivated individuals who excel in a collaborative, team-oriented environment and are eager to enhance their skills. If you are committed to serving the community and seeking professional growth in a supportive setting, we encourage you to apply.
We are looking for someone who is:

• Professional and able to work in a team environment. This position requires you to interact with internal and external stakeholders as a representative of the County.
• Analytical. You will analyze and interpret data and legal descriptions and present the information clearly and professionally.
• An individual with strong time management skills. You will need to use your time efficiently, prioritize and plan work activities, and manage assignment deadlines.
• Detail-oriented. You will be reviewing specifications and plans that require a keen eye and review.
• Customer-focused. Your role will require you to be responsive and proactive when addressing customer needs.

What you will typically be responsible for:

• Creating and updating subdivision maps, parcel maps, land survey maps, and right-of-way information.
• Conducting data modeling and integration with spatial layers.
• Creating and maintaining geo-referenced databases, maps, and spatial data using Environmental Systems Research Institute (ESRI) and Computer-Aided Design (CAD) software to ensure accurate parcel representation and integration between systems.
• Maintaining and updating parcel fabric layers, geodatabases, and other GIS data layers by collecting and verifying information from Assessor’s Office staff, other agencies, and source documents such as parcel maps, legal descriptions, and recorded deeds.
• Incorporating newly created or revised maps and plans into existing digital base map files to maintain version control and data consistency.
• Performing standard spatial operations and analyses, such as buffering, overlays, and distance calculations, using established GIS tools and methods.
• Responding to inquiries from County departments, public agencies, and the public regarding assessment maps, parcel divisions, addresses, and related spatial information; provideing customer service and prepares custom maps or data extracts as requested.

A few reasons you might love this job:

• You will be part of a collaborative team where teamwork is highly encouraged and supported.
• You will be challenged daily.
• All the tools and equipment required to perform the duties will be provided.
• You will have a supportive leadership team that is dedicated to your growth and success.

A few challenges you might face in this job:

• You will need to manage and complete multiple tasks in a timely manner.
• You will work in a fast-paced environment.
• You will occasionally interact with challenging or difficult taxpayers or representatives.
• You will need to learn and adapt to new versions of complex software.

Competencies Required:

• Analyzing & Interpreting Data: Drawing meaning and conclusions from quantitative or qualitative data
• Fact Finding: Obtaining facts and data pertaining to an issue or question
• Reading Comprehension: Understanding and using written information
• Professional & Technical Expertise: Applying technical subject matter to the job
• Using Technology: Working with electronic hardware and software applications
• Adaptability: Responding positively to change and modifying behavior as the situation requires
• Attention to Detail: Focusing on the details of work content, work steps, and final work products
• Professional Integrity & Ethics: Displaying honesty, adherence to principles, and personal accountability
• Informing: Proactively obtaining and sharing information
• Customer Focus: Attending to the needs and expectations of customers
• Teamwork: Collaborating with others to achieve shared goals
• Valuing Diversity: Appreciating the benefits of varied backgrounds and cultures in the workplace

To read the complete job description, please click here .

The eligible list established from this recruitment may be used to fill future openings for up to six (6) months.

Minimum Qualifications

Education: Possession of a high school diploma, GED proficiency or high school equivalency certificate and at least nine (9) semester or twelve (12) quarter units in computer aided drafting, geographic information systems, cartography, or a closely related field; or the equivalent in coursework or CAD/GIS certification from a recognized technical or trade school.

Experience: Two (2) years of experience using computer-aided drafting (CAD) and/or geographic information systems (GIS) software in mapping, drafting, civil engineering, land surveying, geography, or cartography.

Substitution for Experience: Successful completion of thirty (30) semester or forty-five (45) quarter units from an accredited college or university that includes at least twelve (12) semester or eighteen (18) quarter units in computer aided drafting, geographic information systems, cartography, or a closely related field may be substituted for one year of the required experience.

Desirable Qualifications:

• Title and land transfer experience
• Experience working with land records, specifically those used for property tax assessment, land surveying, and/or engineering
• Experience with Geographic Information Systems (GIS)
• Experience interpreting technical descriptions of property contained in deeds
• Experience with Computer Aided Drafting software (CAD)

Selection Process

Application Filing and Evaluation: All applicants must apply online at www.cccounty.us/hr and submit the information as indicated on the job announcement and supplemental questionnaire by the final filing date. Depending on the number of applications received, an Application Evaluation Board may be convened to evaluate and select the best-qualified candidates for invitation to the next phase of the examination. Online Virtual Interview: Candidates who clearly demonstrate that they possess the minimum qualifications will be invited to participate in an online virtual interview. Candidates must achieve an average overall passing score of 70% of higher to move forward in the selection process. The assessment will measure candidates' competencies as they relate to the job. These may include, but are not limited to: Analyzing & Interpreting Data, Attention to Detail, Critical Thinking, Customer Focus, Professional & Technical Expertise, and Teamwork. (Weighted 100%)Final Selection Interviews: These will be scheduled by the department once the eligible list is established.
The Online Oral Assessment is tentatively scheduled to take place via computer (remotely), May 15th through 21st, 2026.

The Human Resources Department may change the examination steps noted above in accordance with the Personnel Management Regulations and accepted selection practices.

For recruitment-specific questions, please contact Alex Johnson at Alex.Johnson@hrd.cccounty.us. For any technical issues, please contact the GovernmentJobs’ applicant support team for assistance at +1 855-524-5627.


CONVICTION HISTORY

After you receive a conditional job offer, you will be fingerprinted, and your fingerprints will be sent to the California Department of Justice (DOJ) and the Federal Bureau of Investigation (FBI). The resulting report of your conviction history (if any) will be used to determine whether the nature of your conviction conflicts with the specific duties and responsibilities of the job for which you have received a conditional job offer. If a conflict exists, you will be asked to present any evidence of rehabilitation that may mitigate the conflict, except when federal or state regulations bar employment in specific circumstances. Having a conviction history does not automatically preclude you from a job with Contra Costa County. If you accept a conditional job offer, the Human Resources department will contact you to schedule a fingerprinting appointment.

DISASTER SERVICE WORKER

All Contra Costa County employees are designated Disaster Service Workers through state and local law. Employment with the County requires the affirmation of a loyalty oath to this effect. Employees are required to complete all Disaster Service Worker-related training as assigned, and to return to work as ordered in the event of an emergency.

EQUAL EMPLOYMENT OPPORTUNITY

It is the policy of Contra Costa County to consider all applicants for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, sexual orientation, gender, gender identity, gender expression, marital status, ancestry, medical condition, genetic information, military or veteran status, or other protected category under the law.

To find more information on Benefits offered by Contra Costa County, please go to https://www.contracosta.ca.gov/1343/Employee-Benefits

Closing Date/Time: 5/4/2026 11:59 PM Pacific

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• Contra Costa County Human Resources Department

• 925-655-2100

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