Employment Opportunities  >>  Information Technology & GIS

CAMA Modeler

DeKalb County Government

Posted: Sep. 7, 2018

End Date: Dec. 7, 2018

The purpose of this classification is to perform technical work to develop and maintain valuation models within computer assisted mass appraisal systems. Incumbents in this classification perform high level statistical analysis to determine consistency and uniformity of valuations within various categories County wide.  

Essential Functions:

The following duties are normal for this position. The omission of specific statements of the duties does not exclude them from the classification if the work is similar, related, or a logical assignment for this classification. Other duties may be required and assigned.

Performs detailed analysis utilizing Computer-Assisted Mass Appraisal (CAMA) systems to establish ad valorem values for real and personal property; develops and maintains models for sales comparative and market approach to valuation; and supports the defense of CAMA system values.

Conducts research and analysis on local and national real estate market trends and economic activity to ensure all factors influencing real estate value are considered in the development of CAMA models; analyzes real estate market/submarket areas using statistical software, Geographic Information Systems (GIS), and relational databases; and develops and performs ratio studies on all identified market areas in the jurisdiction.

Performs quality control checks on collected data; determines if property valuations are uniform within categories of property and consistent with sales data for actual purchases; conducts quality assurance inspections of real property as part of research and analysis as necessary.

Ensures that calibrated models produce values that meet applicable legal requirements, Georgia State Department of Revenue and IAAO standards; performs analysis to determine data outliers and irrational value relationships; and prepares related reports on the status of the data.

Produces and analyzes summary mass appraisal statistical reports; performs queries, research projects and prepares specialized reports as requested by elected officials, city departments, neighborhood groups and the media; and supports the defense of CAMA system values.

Serves as liaison to third party vendor to maintain and calibrate valuation models; ensures that software applications are appropriately updated; participates in new technology initiatives, including hardware, software applications, and system connectivity configuration; conducts pre and post testing on new or existing hardware and software system upgrades; and troubleshoots valuation issues and problems as needed.

Trains and mentors appraisal staff in CAMA theory, design and application; provides service and support to management and staff through the use of query tools to extract data, update files, amend records, and delete assessment data; provides technical assistance; and reviews work processes to ensure data standards and guidelines are followed.

Communicates with appraisal staff, other departments, property owners, third party vendor, and other individuals as needed to coordinate work activities, review status of work, exchange information, or resolve problems; communicates the laws, regulations, assessor's role, and appraisal methods used in valuing property for assessment purposes.

Maintains current, comprehensive knowledge and awareness of applicable laws, regulations, principles and practices relating to mass appraisal theories, techniques and applications; maintains an awareness of new trends and advances in the profession; and attends workshops training sessions, and meetings as needed.


Minimum Qualifications:

Bachelor's Degree in Real Estate, Statistics, Computer Science, GIS or a closely related field; five years  experience in statistical modeling, preferably in real estate market analysis; or any equivalent combination of education, training, and experience which provides the requisite knowledge, skills, and abilities for this job.

Specific License or Certification Required:  Must possess and maintain a valid Georgia driver’s license and Georgia Appraiser IV certification.