560 Data Engineer jobs in Leesburg,VA

~ 58 min OnsitePaid Time OffRetirement Benefit

Mid-Level SQL Engineer

Leidos

Gaithersburg, MD 20879

Bachelor's degree in computer science, Software Engineering, or related field with 4–8 years of experience; or Master's with 2–6 years
US Citizenship
Active TS/SCI with ability to successfully pass a Polygraph
Strong SQL skills, including the ability to write advanced queries (joins, aggregations, subqueries, window functions)
Experience working with enterprise relational databases (PostgreSQL, MySQL, Oracle, etc.)
Background supporting analytics, dashboards, or reporting pipelines
Comfortable working in Linux‑based environments
Proven ability to work independently on data‑centric tasks and ensure data quality

New, Posted 23 hours ago

Metadata / Data Cataloging Analyst

Guidehouse Careers

McLean, VA 22101

Information Technology Professional (IT Support)

U.S. Navy

Leesburg, VA 20176

~ 58 min OnsitePaid Time OffRetirement Benefit

Mid-Level SQL Engineer

Leidos

Gaithersburg, MD 20879

Bachelor's degree in computer science, Software Engineering, or related field with 4–8 years of experience; or Master's with 2–6 years
US Citizenship
Active TS/SCI with ability to successfully pass a Polygraph
Strong SQL skills, including the ability to write advanced queries (joins, aggregations, subqueries, window functions)
Experience working with enterprise relational databases (PostgreSQL, MySQL, Oracle, etc.)
Background supporting analytics, dashboards, or reporting pipelines
Comfortable working in Linux‑based environments
Proven ability to work independently on data‑centric tasks and ensure data quality

Field Risk Specialist

Datascan Technologies, LLC

Rockville, MD 20847

New, Posted 2 hours ago

~ 20 min OnsiteHealth InsuranceRetirement Benefit

Non-Traditional Operations Planning Specialist - Junior

Cherokee Federal

Sterling, VA 20166

This position requires an active **TS/SCI with Full Scope Polygraph** clearance.
Must have three (5) or more years of relevant experience.
Desired to have at least a Bachelor's degree in a related field of study.
Must have an active Top Secret/SCI with Full Scope Polygraph level clearance at time of application.
Must be proficient in cablet writing, report drafting and any other written communications.
Able to serve as a liaison to other groups within the organization, identify and document leading practices of regulatory compliance making sure critical programmatic documents, workflow patterns and personnel information are maintained for continuity purposes in accordance with existing Standard Operating Procedures (SOPs).
Proficiency with Microsoft Office (i.e. Excel) and data analytics.
Must pass pre-employment qualifications of Cherokee Federal.
This position requires an active TS/SCI with Full Scope Polygraph clearance.

New, Posted 1 day ago

Hybrid~ 31 minEducation AssistanceHealth InsuranceRetirement Benefit

Senior Backend Developer, Data Platform

Vantor

Reston, VA 20190

$182,000-$200,200/yr

To be eligible for this position, you mustbe a U.S. Citizen.
This position requires an active U.S. Government Security Clearance at the TS/SCI level with CI polygraph.
Export Control/ITAR:_ Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).
Strong proficiency in Python
Experience building backend systems, APIs, or distributed services in production environments
PostgreSQL and Elasticsearch proficiency
Familiarity with AWS, especially S3, RDS, and other data centric services
Current/active TS/SCI with a current CI polygraph or be willing and able to obtain a CI polygraph.
Bachelor's degree in a related field, e.g. Computer Science, Systems Engineering or equivalent experience
Understanding of software engineering fundamentals including testing, version control, CI/CD, and system design
Tenacious troubleshooting, problem solving and error fixing mentality
Strong communication and collaboration skills, ability to work, collaborate and thrive on a small technical team.
10\\+ years of professional software engineering experience, with strong backend development skills

New, Posted 1 day ago

~ 27 min OnsiteBilingual PreferredEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

ResumeLibrary

Lead, Software Engineer

L3Harris Technologies

Herndon, VA 20192

Bachelor's Degree and minimum 9 years of prior relevant experience
Graduate Degree and a minimum of 7 years of prior related experience
In lieu of a degree, minimum of 13 years of prior related experience
2+ years in a software leadership or project management role
At least 5 years of experience with software design and development using C/C++ programming languages
Ability to obtain and maintain a US Security Clearance

Requires TravelHealth InsurancePaid Time OffRetirement Benefit

Construction Cost Engineer, AMER Cost Control

Amazon Data Services

Herndon, VA 20170

Bachelor's degree in Electrical Engineering, Mechanical Engineering, or a related field
Experience directly related to the design or construction of data centers or critical infrastructure or large-scale mechanical and electrical plants
Experience in MS Excel, Word, and Windows Operating Systems
Experience with power management and power monitoring systems
Experience in construction management of large, complex projects involving large-scale mechanical, electrical and plumbing (MEP) plants

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New, Posted 2 hours ago

Analysis Lead Engineer

QinetiQ

Chantilly, VA 20151

~ 32 min Onsite

Experience in modeling one or more of the critical mission areas: Missile Warning/Missile Tracking/Missile Defense, end-to-end kill chains, and/or communications systems and networks
Experience with AFSIM, Python, and/or STK
Bachelor's degree in science, technology, engineering or mathematics
Minimum of 10+ years experience with satellite and ground systems
Ability to work in fast paced environment with excellent oral and written communication skills.
TS Clearance with SCI Eligibility; @qinetiqclearedjob