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GIS Cartographer 2

Clackamas County

Oregon City,  Oregon

Clackamas County’s Assessment and Taxation Department is currently seeking a journey-level GIS Cartographer 2 to join its team.

The incumbent will independently perform complex cadastral map drafting involved in the preparation and maintenance of assessment maps; maintain and amend the Assessor's GIS database layer; perform complex research, and interpret legal descriptions.

Successful candidates will have knowledge and work experience reading legal descriptions, such as deeds or titles and be familiar with property ownership records. Additionally, successful candidates will have the ability to perform accurate cadastral map drafting, convert, join and manipulate tables from standard formats into GIS formats, and read and interpret detailed data, policies or legal descriptions relating to title search or preparation of cadastral maps.

Required Minimum Qualifications/ Transferrable Skills:*

  • At least 1 year of experience working with legal documents such as titles, deeds, liens, notices, and court orders.
  • At least 1 year of experience working with property descriptions, deeds and survey data.
  • At least 1 year of experience providing customer services to both internal and external customers.
  • At least 1 year of experience performing a variety of record keeping activities to ensure proper ownership of property.
  • At least 1 year of experience examining records to establish ownership through title searches and plot maps from legal descriptions.
  • At least 2 years of experience working with electronic mapping.
  • Any satisfactory combination of experience, education or training that demonstrates possession of the required knowledge and skills.
  • Driving may be necessary for County business. For position(s) with occasional/incidental driving, incumbents must possess a valid driver's license. Specific information on the County's driving policy can be found at Driving and Vehicle Policy (EPP 52). Accommodation requests for an acceptable alternative method of transportation will be reviewed on an individual basis in compliance with State and Federal legislation

Preferred Special Qualifications/ Transferrable Skills:*

  • Intermediate level proficiency in Microsoft Excel.
  • Intermediate level proficiency in Microsoft Access.
  • Experience hand drawing maps.

*For Veterans qualified for Veteran’s Preference: If you believe you have skills that would transfer well to this position and/or special qualifications that relate to this position, please list those skills and/or qualifications in the open-ended question at the end of the application and explain how those skills and/or qualifications relate to this position.

Duties may include but are not limited to the following:

  • Revises existing maps or drafts new maps to incorporate new developments, subdivisions, easements or other similar boundary changes from deeds, surveys, document descriptions, highway strip maps, court records, aerial photographs and requests from property owners; drafts reductions or enlargements of maps; drafts maps from complex legal descriptions; reviews map and geographic record materials for entry into GIS databases; prepares, maintains, and amends the Assessor's layers of the GIS data sets.
  • Performs difficult research activities to determine ownership and makes corrections on existing maps as necessary; researches property history and legal descriptions; analyzes and researches data through the use of tax maps, road maps, reference files; identifies, updates and corrects GIS data; participates in the implementation and ongoing maintenance of the County GIS as it pertains to Assessment and Taxation; designs and produces computer-generated maps and reports for analysis and presentations; maintains a current set of tax lot maps.
  • Reviews preliminary subdivision, condominium and partition plats for correct ownership and dimensions; enters recorded subdivision, condominium, partition plats, lot line adjustments, street dedications and vacations, and other parcel adjustments to a control Public Land Survey System (PLSS) layout in the digital map files; notifies other departments and jurisdictions of changes; maintains databases of proposed and recorded plats; determines how vacated roads or their parts accrue to properties; tabulates and distributes acreages, bearings and distances; makes changes on manual and digital (GIS) maps from metes and bounds descriptions using basic drafting equipment, coordinate geometry (COGO), and/or editing tools; calculates land area of parcels for use in valuation.
  • Researches complicated deed and survey conflicts related to cadastral mapping and ownership of property using all resources available; determines effects of documents on Assessor maps using knowledge of statutes, jurisdictional land use laws, survey laws and office policy.
  • Maintains and updates Taxing District boundaries using annexation and Urban Renewal descriptions; identifies status changes for acquisitions by a public body using Department of
  • Revenue Property Classification Memoranda; participates in quality control of map revisions; maintains current versions of Assessor maps for use by the public and County staff.
  • Performs various duties related to the maintenance of mylar maps such as tracing, inking, lettering, detailing and preparation of overlay.
  • Communicates with other departments and agencies to provide and receive clarification of data and understanding of public records laws; serves on various project teams to establish written procedures for development of processes; establishes and maintains effective working relationships with County staff, other agencies and the public; answers questions and assists the public and others with a variety of issues.
  • Trains or assists other cartographic staff as needed; reviews work of other GIS Cartographers for quality control; maintains knowledge of current cadastral technologies, and skills to perform required duties at the most efficient level; develops and enhances GIS editing procedures using techniques or existing tools and features; under direction, may create in-house GIS applications when necessary; performs a variety of general office and counter support activities; performs related duties as assigned.


In addition to the minimum qualifications listed in the Job Introduction section, applicants will have:

Working knowledge of: Concepts, practices and procedures pertaining to the key elements of conveyance documents and chain of title; terminology, symbols and principles used in drafting; drafting instruments, equipment and materials such as calculators, templates, drafting machines, CADD software, etc.; geographic information system software; computerized mapping techniques and theory; property descriptions, deeds and survey data in order to prepare, search, establish and maintain the accuracy of a variety of maps indicating ownership boundaries; assessment records and statutes; fundamental land use and survey laws; office processes and policies; the boundary annexation process; principles of algebra, geometry and trigonometry as used in the preparation and maintenance of drafting cadastral maps; media materials and techniques of graphic arts.

Skill to: Perform accurate cadastral map drafting in the preparation or maintenance of maps, graphic rendering, boundary changes, assessment districts; interpret information on a case-by-case basis to recommend appropriate courses of action; plot from legal descriptions, deeds, survey data, tract descriptions and existing maps; create a suitable Assessor's map template using appropriate symbols to define various layers; to convert, join and manipulate tables from standard formats into GIS formats; prepare and amend map layers in GIS; read and interpret detailed data, policies or legal descriptions relating to title search or preparation of cadastral maps; perform special analysis; make arithmetic computations to calculate bearings, distance or acreage; follow detailed oral or written descriptions or instructions; communicate effectively, both orally and in writing; establish and maintain effective working relationships with the general public and departmental staff.

This position is included in the County’s alternate workweek program, working 37.5 hours during a standard workweek of Monday through Thursday (Fridays off). Specific hours of work will be discussed with the candidate selected for this position at the time an offer of employment is extended.

Clackamas County is in a prime location in the Portland, Oregon metropolitan area and is recognized nationally as one of the most livable areas in the United States. Located on the southern edge of the City of Portland and extending to the top of Mt. Hood, Clackamas County is part of a thriving region in the Northwest. It has a population of about 400,000 citizens.

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