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Senior Open Source Developer Jobs in Virginia (NOW HIRING)

SOSi

Open Source Intelligence Investigator

Reston, VA · On-site

$48K - $48K/yr

The analyst must have operational targeting experience, senior to expert-level technical/IT ... Leverage open-source collection techniques to provide reports. * Write protective intelligence ...

OPEN SOURCE ENGINEERING LLC

Field Inspector

Mclean, VA · On-site

$24 - $30/hr

Field Inspector Washington Metropolitan Area (DC, MD, VA) Open Source Engineering, LLC (OSE) is seeking a motivated and detail-oriented Field Inspector to join our growing engineering and consulting ...

OPEN SOURCE ENGINEERING LLC

Field Inspector

Mclean, VA · On-site

$24 - $30/hr

Field Inspector Washington Metropolitan Area (DC, MD, VA) Open Source Engineering, LLC (OSE) is seeking a motivated and detail-oriented Field Inspector to join our growing engineering and consulting ...

Damco Solutions

Senior Frontend Developer

Richmond, VA · On-site

$112K - $147K/yr

Damco Solutions is seeking a Senior Frontend Developer to work with a team of developers ... open source frameworks, RESTful web services, and work on cross-browser and cross-device ...

Guidehouse

Open Source Technical Program Manager

Mclean, VA · On-site

$130K - $168K/yr

... open source capabilities * Engage with stakeholders both internal and external to the client ... Leverage professional maturity and polished communications style to work with senior leadership and ...

Karsun Solutions, LLC

Senior AI Data Engineer

Herndon, VA · On-site

$165K - $180K/yr

Summary We are seeking a highly skilled and motivated Sr. AI Data Engineer with a proven track ... Open-Source Integration: Utilize and integrate open-source tools such as Python, PySpark, and ...

Karsun Solutions, LLC

Senior AI Data Engineer

Herndon, VA · On-site

$165K - $180K/yr

Summary We are seeking a highly skilled and motivated Sr. AI Data Engineer with a proven track ... Open-Source Integration: Utilize and integrate open-source tools such as Python, PySpark, and ...

Guidehouse

Open Source Technical Program Manager

Mclean, VA · On-site

$130K - $168K/yr

... open source capabilities * Engage with stakeholders both internal and external to the client ... Leverage professional maturity and polished communications style to work with senior leadership and ...

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Senior Open Source Developer information

What is the difference between Senior Open Source Developer vs Open Source Software Engineer?

AspectSenior Open Source DeveloperOpen Source Software Engineer
CredentialsExperience in open source projects, coding skills, possibly certifications in relevant technologiesSimilar credentials, often with additional focus on software engineering principles and certifications
Work EnvironmentCollaborates in open source communities, contributes to projects, often remoteWorks within organizations on open source projects or internal tools, may be part of a team
Industry UsageCommon in tech, software, and open source communitiesUsed in tech companies, startups, and organizations leveraging open source solutions

While both roles involve working with open source projects, a Senior Open Source Developer typically focuses on contributing code and leading community efforts, whereas an Open Source Software Engineer may work within a company to develop, maintain, and integrate open source solutions into products.

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The most popular types of Open Source Developer jobs in Virginia are:

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For Senior Open Source Developer jobs in Virginia, the most frequently searched job titles are:

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The top searched job categories for Senior Open Source Developer jobs in Virginia are:

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Cities in Virginia with the most Senior Open Source Developer job openings:

Senior Open Source Developer jobs near you
Infographic showing various Senior Open Source Developer job openings in Virginia as of August 2026, with employment types broken down into 1% As Needed, 78% Full Time, 18% Part Time, and 3% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution.

Open Source Intelligence Investigator

SOSi

Reston, VA • On-site

$48K - $48K/yr

Full-time

Re-posted 5 days ago

Job description

Company Description
Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.
Job Description
Overview
SOS International LLC (SOSi) is seeking an Open-Source Intelligence Investigator who will possess a sophisticated understanding of online social media and associated tradecraft and use that expertise to produce in-depth analysis and other related analytical products for the customer. The analyst must have operational targeting experience, senior to expert-level technical/IT tradecraft; preferred familiarity with force protection, protective intelligence, CI or insider threat experience.
Essential Job Duties
  • Conduct online research using industry best practices for misattribution techniques, with a strong understanding of internet footprint/presence and digital fingerprints.
  • Consolidate research findings to augment and support ongoing protective intelligence efforts in client spaces, with a strong focus on essential targeting elements of information that enable follow-on actions
  • Leverage open-source collection techniques to provide reports.
  • Write protective intelligence assessments and respond appropriately to requests for information for dissemination to customer.
  • Produce intelligence products by researching, querying, and compiling information from large data sets.
  • Use advanced OSINT and social media collection and analysis techniques to support information requests concerning force protection, indications and warnings, counter threats, counterintelligence, and all source intelligence integration and assessments.
  • Assemble, analyze, and prioritize open-source material into protective intelligence and force protection assessments.
  • Prepare and present intelligence collection assessments and briefings to customers and advise key leadership of force protection concerns and provide timely Indications and Warnings that challenge current force protection postures.
  • Provide trends and analysis of social media landscape.
  • Provide consultation on how to leverage OSINT data and information, use specialized OSINT tools and services, and consult on the development of OSINT products.

Qualifications
Minimum Requirements
  • Active in-scope TS/SCI with Polygraph.
  • Fifteen years of relevant experience OR a SME level in a specific field.
  • Ability to brief protective intelligence packages to tactical and operational IC leadership.
  • Knowledge of targeting tools and methodologies used in the IC.
  • Experience with accessing, researching, and exploiting global and regional social media and digital platforms.
  • Knowledge of advanced Internet-based research, including Boolean logic, advanced research techniques, search engine and database resources, and Internet sources, including social media, social networking tools, and commercial and industry-based databases.
  • Ability to quickly process and organize large amounts of information and identify and assess items of greatest importance.
  • Keen understanding of Open-Source environment.
  • Strong understanding of Deep and Dark Web.
  • Strong understanding of how to use mobile applications.
  • Demonstrated comfort with information technology and multimedia software, including publishing and analytics tools.
  • Experience with Microsoft Office, including Word, Excel, and PowerPoint.

Preferred Qualifications
  • Bachelor's degree.
  • Familiarity with force protection, protective intelligence, CI or insider threat experience.
  • Fluency in a foreign language is desirable, but not required.

Additional Information
Work Environment
  • Hybrid work environment, with expectations to seamlessly work on a daily/weekly basis at customer site and corporate site to complete job duties as assigned.
  • Normal office working conditions with possible requirement to lift and/or move objects or packages of up to 25 lbs.
  • Periods of non-traditional working hours including consecutive nights or weekends when necessary (infrequent).

Working at SOSi
All interested individuals will receive consideration and will not be discriminated against for any reason.

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