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Ontologist Jobs in Washington (NOW HIRING)

Enterprise Knowledge

Ontology Consultant

Arlington, VA · Remote

$110K - $150K/yr

In addition to delivering ontology models, this Ontologist will advise clients at varying levels of maturity on how to implement semantic best practices and expand and scale their ontology programs.

Enterprise Knowledge

Ontology Consultant

Arlington, VA · On-site +1

$110K - $150K/yr

In addition to delivering ontology models, this Ontologist will advise clients at varying levels of maturity on how to implement semantic best practices and expand and scale their ontology programs.

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Ontologist information

What does an ontologist do?

An Ontologist designs and manages structured frameworks for organizing information, such as taxonomies, ontologies, and metadata schemas. They work to ensure data is meaningfully categorized and interconnected, improving search, retrieval, and interoperability across systems. Ontologists often collaborate with data scientists, engineers, and subject matter experts to develop semantic models that enhance AI, machine learning, and knowledge management applications.

What are the key skills and qualifications needed to thrive as an ontologist?

To thrive as an Ontologist, you need a solid background in information science, knowledge representation, and formal logic, typically supported by a degree in computer science, information systems, or a related field. Experience with semantic web technologies (such as RDF, OWL, and SPARQL), ontology management tools (like Protégé), and sometimes certification in data modeling or knowledge engineering is highly valuable. Strong analytical thinking, problem-solving abilities, and effective communication skills make an ontologist stand out. These competencies are critical for designing and maintaining data structures that improve organizational understanding, interoperability, and searchability of information.

How much do ontologists make?

Ontologists typically earn between $70,000 and $120,000 annually, depending on experience, education, and industry. Senior roles or those in specialized fields may offer higher salaries, especially with expertise in knowledge representation and ontology development tools.

How to become an ontologist?

To become an ontologist, typically a bachelor's degree in computer science, information science, philosophy, or a related field is required, often followed by specialized training or certification in ontology development and semantic technologies. Gaining experience with tools like OWL, RDF, and knowledge modeling, along with strong analytical and logical skills, is also important for this role.

What are the most commonly searched types of Ontologist jobs in Washington?

The most popular types of Ontologist jobs in Washington are:

What are popular job titles related to Ontologist jobs in Washington?

For Ontologist jobs in Washington, the most frequently searched job titles are:

What job categories do people searching Ontologist jobs in Washington look for?

The top searched job categories for Ontologist jobs in Washington are:

What cities in Washington are hiring for Ontologist jobs?

Cities in Washington with the most Ontologist job openings:

Ontologist jobs near you
Infographic showing various Ontologist job openings in Washington as of August 2026, with employment types broken down into 79% Full Time, and 21% Contract. Highlights an 64% In-person, and 36% Remote job distribution.

4103 Data Engineer (Modeling) with Security Clearance

Procession Systems

Newington, VA • On-site

$127K - $152K/yr

Other

Re-posted 19 days ago

Job description

OVERVIEW: We are seeking an experienced Modeling Data Engineer to join an exciting work program. The successful candidate will be responsible for the development, design, and adaptation of proprietary data formats that capture real world entities in realistic, transportable, and explanatory data models. Additional responsibilities include developing changes to the model to support continually evolving system and information requirements. These models must be able to support current and future enterprise applications system design, by capturing and communicating with all relevant systems the changes to the data model at consistent, and regular intervals consistent with the software development life cycle of the enterprise applications. The candidate will also be required to interface directly with data architects and software developers to ensure that the data model is able to capture the use cases that the software systems are responsible for. REQUIRED QUALIFICATIONS: * Bachelor's or Master's degree in Computer Science, Data Science, Engineering, or related field of study
* Experience creating and managing data models, ETL development and data warehousing
* Software languages and software system development experience (Python and JavaScript)
* Familiarity and experience with search query languages (SQL, No-SQL)
* Knowledge of common data storage formats (JSON, XML, CSV)
* Familiarity with the software development cycle
* Extensive experience building unit tests
* Ability to work independently and as part of a team
DESIRED QUALIFICATIONS: * Digital forensic domain background.
* Normalizing data accounting for multiple organizational and operational concerns.
* Experience working with an ontologist.
* Experience handling complex and conflicting customer requirements.
* Knowledge of data governance and data quality frameworks.
CLEARANCE: * Top-Secret clearance and the ability to obtain SCI access with a CI polygraph.
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About Procession Systems

Sourced by ZipRecruiter

Procession Systems, based in Reston, Virginia, United States, is an industry leader operating in the Information Technology Services sector. Established to address complex business and technology challenges, the company delivers innovative tech solutions for government entities, primarily focusing on systems integration and software development. Procession Systems takes pride in their commitment to quality, responsiveness, and results, geared towards improving public sector services and saving taxpayer dollars.

Industry

Recruiting and staffing services

Company size

11 - 50 Employees

Headquarters location

Reston, VA, US

Year founded

2016

Social media

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