Software Developer - TS/SCI Clearance w/CI Poly Required

Leffler Consulting, LLC
Chantilly, Loudoun County, VA

Software Developer – TS/SCI Clearance w/CI Poly Required

Location

Chantilly, VA

Job Description

Leffler Consulting is seeking a Senior Software Developer to join our team in Chantilly, VA. Work will be performed onsite with the government customer and requires an active TS/SCI clearance with a CI Polygraph.

Duties
  • Lead a technical team of applications developers
  • Plan, prioritize and organize software development related tasks for the development team
  • Manage customer relationships to ensure satisfaction
  • Consult with the customer to develop formal user requirements
  • Work with the team to conceptualize user interface layout and design
  • Develop and operate system environments to support data storage, development of new models and tools, and daily operations
  • Translate user requirements from a formal requirements document into a software application and/or database design
  • Develop, test, implement, and maintain complex software applications and/or databases
  • Guide, develop, and maintain databases, custom software, web applications, and new models/tools
  • Oversee the directorate’s data infrastructure to include IT networks, systems administration, accreditation, and licensing
  • Manage COTS tools deployment and administration
  • Manage and coordinate with agency IT personnel to ensure the directorate operates in accordance with IT policies including information assurance and coordinating approvals through the risk management framework
  • Work under minimal technical guidance
  • Draft technical program documentation, such as end-user operational instructions
  • Develop and maintain software applications and/or databases, including web applications and user interfaces
  • Perform other duties as assigned to support corporate initiatives

Skill Set:

  • Interact with customers and colleagues expertly and effectively when resolving problems
  • Apply leadership skills and the ability to manage competing priorities, multiple tasks and work requirements
  • Apply highly effective customer service skills, and work effectively with teams to foster a collaborative work environment across the organization
  • Work independently or on a team
  • Apply highly effective communication skills (oral and written) and communicate complex issues and present results to senior leadership
Required Education
  • Master’s degree in a computer science, information technology, software engineering, computer engineering or a similar computer-oriented field (additional years of experience may be substituted for educational requirements)
Required Experience
  • 15+ years of software development experience (additional years of experience may be substituted for educational requirements)
  • Strong understanding of Java
  • AWS development experience with services such as EC2
  • SQL server experience, including SQL queries and analysis
  • Familiarity with Python
  • Experience with React (front end development tool) and MS Visual Studio are desired but not required
  • NRO experience is a plus
Desired Education
  • Refer to “Required Education”

Founded in 2001, Leffler Consulting is a women-owned small business (WOSB) headquartered in Chantilly, Virginia. We provide financial management and life-cycle budget and cost support to our nation’s most critical programs in the Intelligence Community (IC) and Department of Defense (DoD). Leffler Consulting specializes in all areas of financial management, audit readiness, and process improvement and controls while also providing a broad array of support functions critical to supporting the mission requirements of our customers. We offer competitive salaries and a generous benefits package, including medical, dental, vision, and disability coverage, paid leave, paid holidays, an employee assistance program, and an employee referral program.

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Posted 2026-01-28

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