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Query Processing Jobs in Ashburn, VA (NOW HIRING)

Black Canyon Consulting

Lead Ontologist

Bethesda, MD · Remote

You will design and build models using LinkML and RDF/OWL, define query skeletons, and ensure that ... Experience with data profiling, reconciliation, and mapping processes * Experience with knowledge ...

Black Canyon Consulting

Lead Ontologist

Bethesda, MD · On-site

You will design and build models using LinkML and RDF/OWL, define query skeletons, and ensure that ... Experience with data profiling, reconciliation, and mapping processes * Experience with knowledge ...

AHU Technologies Inc

PowerBI Developer

Washington, DC

$44 - $49/hr

Use SQL or other query tools to extract and prepare data from various sources. Troubleshoot basic data or report issues and escalate more complex problems appropriately. Document reporting processes ...

George Mason University

Accountant

Fairfax, VA · On-site

$68K/yr

Experience with Power BI and Power Query or similar data visualization and ETL tools; * Experience in using AI, automation tools, or RPA within finance or accounting; * Experience with ERP systems (e ...

Kroll

Agile Developer (Clearance Required)

Washington, DC

$57.75 - $74.75/hr

Automate build, test, and deployment processes to support continuous delivery of classified ... NoSQL or MongoDB query and schema design * OAuth/OIDC implementation * Test frameworks and ...

Deloitte

Financial Analyst

Rosslyn, VA · On-site

Your work may span strategy, operations, process design, and technology as we partner with clients ... Use Microsoft Excel and data analysis tools such as Python, Power Query, and Structured Query ...

Kroll

Agile Developer (Clearance Required)

Washington, DC · On-site

$57.75 - $74.75/hr

Automate build, test, and deployment processes to support continuous delivery of classified ... NoSQL or MongoDB query and schema design * OAuth/OIDC implementation * Test frameworks and ...

Vantor

Full Stack Developer

Mclean, VA · On-site

... data processing • Experience with Trino or distributed query engines • Experience implementing authentication and authorization in cloud-based systems • Familiarity with Docker-based ...

Deloitte

Financial Analyst

Arlington, VA · On-site

Your work may span strategy, operations, process design, and technology as we partner with clients ... Use Microsoft Excel and data analysis tools such as Python, Power Query, and Structured Query ...

Deloitte

Financial Analyst

Washington, DC

Your work may span strategy, operations, process design, and technology as we partner with clients ... Use Microsoft Excel and data analysis tools such as Python, Power Query, and Structured Query ...

BigBear.ai

Database Administrator

Ashburn, VA · On-site

Query Tuning and Optimization : * Analyze and optimize SQL queries for performance improvement ... processes for database updates. * System Health and Troubleshooting : * Proactively monitor ...

Georgia IT Inc

ETL Developer-Mclean,VA

Mclean, VA · On-site

$52.25 - $68.50/hr

Mclean,VA Rate: DOE $/Yr. Position Type: Full Time Interview Process: Phone Followed by F2F US ... Minimum 5 yrs of current and hands-on experience with SQL and Relational DB and SQL Query ...

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Query Processing information

See Ashburn, VA salary details

$9

$17

$26

How much do query processing jobs pay per hour?

As of Jul 5, 2026, the average hourly pay for query processing in Ashburn, VA is $17.12, according to ZipRecruiter salary data. Most workers in this role earn between $13.75 and $19.66 per hour, depending on experience, location, and employer.

What is query processing?

Query processing refers to the series of steps a database management system (DBMS) takes to interpret and execute a user's query. This process involves parsing the query, translating it into a suitable internal representation, optimizing it for efficient execution, and finally retrieving the requested data from the database. Effective query processing is crucial for ensuring fast and accurate results, especially in large and complex databases. It typically includes techniques like indexing, query rewriting, and using execution plans to improve performance.

How does a Query Processing professional typically collaborate with database administrators and software developers?

Query Processing professionals play a vital role in optimizing how databases handle and execute queries. They work closely with database administrators to analyze performance bottlenecks, suggest indexing strategies, and ensure efficient data retrieval. Collaboration with software developers is also common, as these professionals help design application queries that are both effective and resource-efficient. This teamwork ensures that end-users receive fast, accurate results while maintaining the stability and scalability of database systems.

What are the key skills and qualifications needed to thrive as a Query Processing Specialist, and why are they important?

To thrive as a Query Processing Specialist, you need a solid understanding of database management, information retrieval, and data analysis, often supported by a degree in computer science or a related field. Familiarity with SQL, search algorithms, data warehousing solutions, and query optimization tools is typically required. Strong analytical thinking, problem-solving abilities, and effective communication skills help you interpret data needs and collaborate with stakeholders. These competencies are crucial for efficiently handling and optimizing queries to ensure accurate, timely access to data and support business decision-making.

What is the difference between Query Processing vs Data Analyst?

AspectQuery ProcessingData Analyst
Required CredentialsKnowledge of databases, SQL, and data retrieval techniquesDegree in statistics, data science, or related fields; SQL knowledge often required
Work EnvironmentDatabase systems, data warehouses, IT departmentsBusiness environments, analytics teams, reporting tools
Industry UsageIT, software development, database managementFinance, marketing, healthcare, and other sectors relying on data insights

Query Processing focuses on retrieving and managing data efficiently within databases, often involving technical skills like SQL and database management. Data Analysts interpret data, generate reports, and provide insights for decision-making. While both roles work with data, Query Processing is more technical and system-oriented, whereas Data Analysts focus on analysis and business applications.

What are popular job titles related to Query Processing jobs in Ashburn, VA? For Query Processing jobs in Ashburn, VA, the most frequently searched job titles are:
What job categories do people searching Query Processing jobs in Ashburn, VA look for? The top searched job categories for Query Processing jobs in Ashburn, VA are:
What cities near Ashburn, VA are hiring for Query Processing jobs? Cities near Ashburn, VA with the most Query Processing job openings:
Query Processing jobs near you
Infographic showing various Query Processing job openings in Ashburn, VA as of June 2026, with employment types broken down into 100% Full Time. Highlights an 90% In-person, 5% Hybrid, and 5% Remote job distribution, with an average salary of $35,610 per year, or $17.1 per hour.

Lead Ontologist

Black Canyon Consulting

Bethesda, MD • Remote

Other

Posted 9 days ago

Job description

Overview

Black Canyon Consulting (BCC) is working with our partner Knowledge3 (knowledge3.ai)  to search for a Lead Ontologist supporting the delivery of knowledge-first systems for one of our joint projects. We turn fragmented scientific and enterprise data into structured, reusable knowledge assets. These systems are designed to support explainable reasoning, governed analytics, and trustworthy AI. The approach starts with the questions that matter and builds toward the semantics required to address them. We define competency questions as the contract for what a system must be able to answer, design queries that satisfy those questions, and derive schema and data transformations from there. The result is modular, minimal, and grounded systems that can be explained, validated, and extended over time.

We are seeking a Lead Ontologist to execute and help shape this approach. This role sits at the boundary between business understanding and technical implementation. You will work with stakeholders to clarify use cases, define competency questions, and translate those into semantic models, schemas, and query patterns. You will design and build models using LinkML and RDF/OWL, define query skeletons, and ensure that data transformation aligns with the intent of the question. You will also play a visible role in communicating results, both internally and with clients, explaining what the system can answer and why.

This is a remote-first role, with a preference for U.S.-based candidates working East Coast hours. Travel is limited, generally no more than once per month, and focused on design workshops or key client interactions. Depending on experience, you may lead these sessions directly or work alongside senior team members..

 Duties & Responsibilities:

Job Responsibilities
  • Strong experience with semantic standards: RDF, RDFS, OWL
  • SPARQL, including query design
  • SHACL, with clear understanding of constraints versus semantics
  • Experience designing and working with ontologies in real-world systems
  • Understanding and practical experience with FAIR (Findable, Accessible, Interoperable, Reusable) Data
  • Demonstrated ability to translate business problems into structured representations, including use cases, questions, and models
  • Strong communication skills, able to explain technical concepts to non-experts and bridge technology and business needs
  • Comfortable working in an iterative, ambiguous environment with evolving requirements
Preferred skills and experience
  • Experience with LinkML
  • Understanding of Labeled Property Graphs (LPG) and OpenCypher
  • Experience with vocabulary standards such as SKOS
  • Experience with data catalog and data product standards, including DCAT and DPROD
  • Background in life sciences or pharma, including translational medicine, clinical data, or real-world data
  • Familiarity with BioLink and other domain models
  • Experience with bioinformatics and biomedical ontology resources
  • Experience with data profiling, reconciliation, and mapping processes
  • Experience with knowledge graph platforms or graph databases
  • Experience in client-facing roles such as workshops, design sessions, and presentations

If you enjoy being part of a high-performing, professional, technology-focused organization, please apply today!

 

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