Demo

Information Systems Security Engineer (TS/SCI + Poly)

The DarkStar Group, LLC
Tysons Corner, VA Full Time
POSTED ON 12/2/2025
AVAILABLE BEFORE 2/1/2026

Description

The DarkStar Group, a GRVTY Company is seeking an Information Systems Security Engineer with a TS/SCI Poly clearance (applicable to this customer) to join one of our top projects in Tysons Corner, VA. Below is an overview of the project, as well as information on our company and our benefits.

THE PROJECT

The DarkStar Group's team provides tactical data engineering solutions. We embed skilled Data Engineers, Data Scientists, and ETL Developers directly into intelligence analyst groups to be their go-to data wranglers.  We develop new tools, code, and services to execute data engineering activities.  Our engineers work to collect, process, and feed analytic tools, turning data into intelligence in response to immediate mission needs, with direct impact on real world situations.  You will see your work used here on a daily basis, and you'll have the opportunity to support a variety of Sponsor mission organizations and mission partner organizations.

This is a time of development and growth on the program, with an increasing number of missions being supported.  The work is high impact and important, and the customer moves quickly.  The environment is fast-paced, flexible, and open to innovation - you'll have more latitude here in choosing how to achieve results than on many other projects.  The customer cares more about what you can do as opposed to your years of experience, and work hours are typically quite flexible - roll up your sleeves, get things done, and no one cares much about the specific hours that you work.  The work space itself is also quite nice, and there is an excellent cafeteria!

The tech stack on this team is rather huge and includes Python (Pandas, numpy, scipy, scikit-learn, standard libraries, etc.), Python packages that wrap Machine Learning (packages for NLP, Object Detection, etc.), Linux, AWS/C2S, Apache NiFi, Spark, pySpark, Hadoop, Kafka, ElasticSearch, Solr, Kibana, neo4J, MariaDB, Postgres, Docker, Puppet, and many others. 

Work on this program takes place in Chantilly, VA, McLean, VA and in various field offices throughout Northern VA (we cannot support remote work) and requires a TS/SCI Polygraph clearance (acceptable to this customer).

THE ROLE

  • The Information Systems Security Engineer supports the client and the team in defining security requirements; advises on, executes and oversees cybersecurity, information assurance (IA) programs, authority to operate (ATO), accreditation and authorization (A&A), User Activity Monitoring (UAM), and system security plans.
Responsibilities
  • Lead for automated security testing efforts leveraging Sponsors enterprise scanning tools
  • Responsible for creation and delivery of the Monthly Vulnerability Scans
  • Responsible for creation and delivery of the Monthly Privileged Users and Admin report
  • Overall Lead for ensuring systems are secure by protecting data and ensuring need to know
  • Responsible for working with Tech team on creating any necessary POAM's
  • Helps PM with the Contract Security Plan
  • Works with PM and Sponsor's Information System Security Manager and INFOSEC Program Council as necessary
  • Authors and maintains the programs System Security Plan (SSP) for A&A
  • Provides the required security education and plan to sponsor for the program
  • Authors and maintains the programs Automated Information Systems (AIS) Plan

Required Skills

  •  4-7 years’ experience with:
    • Application security standards and processes
    • Accreditation and Authorization (A&A), including documentation, POAMs, and remediation.
    • Application and data security requirements for authorities to develop and operation systems (ATD, ATO) such as encryption, role-based security, information assurance, and monitoring/auditing/reporting
    • Coordination with engineering team to implement security requirements
    • Agile / Scrum

Why Choose The DarkStar Group, a GRVTY Company

The DarkStar Group, a GRVTY Company, started with a simple, American idea: we do things not because they are easy but because they are hard. The DarkStar Group, a GRVTY Company, exists to answer challenges. We do it for customers in defense, intelligence, homeland security—anyone whose job it is to advance America’s strategic position. The size of the challenge we face demands new skills, new backgrounds, and new thinking. That’s what we’re here to deliver. And when you work shoulder to shoulder with brilliant people tackling the most high-stakes challenges, it’s invigorating. Our culture is built on collaboration, mission-focused innovation, and a commitment to excellence, where every challenge we answer opens the door to a new possibility.

The toughest national security challenges demand vision and ingenuity, not just resources. We deliver mission and technical expertise to outpace our adversaries. We’re purpose-built to tackle the most entrenched, systemic national security issues around the world.

We partner with our customers to help them overcome challenges in every corner of technology and defense—including the ones still being explored. Our growing capabilities create complementary advantages, giving on-the-ground operations the edge they need to succeed. We muster everything we have to answer every challenge presented, every day of our lives.

At The DarkStar Group, a GRVTY Company, we believe that when our employees thrive, our company thrives. That’s why we offer a comprehensive and competitive benefits package designed to support your well-being, growth, and work-life balance.

  • Robust health plan including medical, dental, and vision  
  • Health Savings Account with company contribution  
  • Annual Paid Time Off and Paid Holidays  
  • Paid Parental Leave   
  • 401k with generous company match  
  • Training and Development Opportunities  
  • Award Programs  
  • Variety of Company Sponsored Events  

The DarkStar Group, A GRVTY Company, is an Equal Opportunity Employer.  All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran and will not be discriminated against on the basis of disability. 
 
Anyone requiring reasonable accommodations should email ds_recruiting@grvty.com or call 703-544-7930 with requested details.  A member of the HR team will respond to your request within 2 business days. 

Know Your Rights: Workplace Discrimination is Illegal

Salary.com Estimation for Information Systems Security Engineer (TS/SCI + Poly) in Tysons Corner, VA
$100,495 to $123,861
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