Software System Engineer III

Vosper Thornycroft Group; Chantilly, Northern (VA, KY); On-site; USD 100,000 - 215,000; Full time

Job summary

VTG in Chantilly, VA seeks a Software Expert III to serve as a trusted technical advisor on software architecture, design, and lifecycle strategy for government leadership.

You will lead reviews of contractor approaches, advise on risks and scalability, mentor junior staff, and help develop governance frameworks for software across complex programs.

Qualifications

• Security clearance TS/SCI with poly is required.
• Bachelor's degree is required; Master’s degree preferred.
• 10+ years of experience in software‑intensive systems or enterprise platforms.
• Deep understanding of modern software architectures and development lifecycles.
• Experience providing technical oversight and advisory support (non‑developer role).
• Strong leadership, stakeholder engagement, and briefing skills.

Responsibilities

• Provide senior‑level advisory support on software architecture, design, and lifecycle strategy.
• Lead government reviews of contractor software approaches, roadmaps, and deliverables.
• Advise program leadership on software risks, technical debt, scalability, and sustainability.
• Support development of software governance frameworks, standards, and evaluation criteria.
• Participate in senior technical reviews, milestone events, and executive briefings.
• Assess alignment of software solutions with mission objectives and enterprise architecture.
• Mentor junior and mid‑level software experts.
• Support acquisition and source selection activities with technical expertise.

Skills

TS/SCI with Poly

Leadership

Stakeholder engagement

Briefing skills

Software architecture

Education

Bachelor's degree

Master's degree

Job description

Overview

VTG is looking for a Software Expert in Chantilly, VA. Software Expert III serves as a trusted technical advisor to government leadership, providing strategic guidance and oversight across complex software‑intensive programs in a SETA capacity.

What will you do?

• Provide senior‑level advisory support on software architecture, design, and lifecycle strategy
• Lead government reviews of contractor software approaches, roadmaps, and deliverables
• Advise program leadership on software risks, technical debt, scalability, and sustainability
• Support development of software governance frameworks, standards, and evaluation criteriali>
• Participate in senior technical reviews, milestone events, and executive briefings
• Assess alignment of software solutions with mission objectives and enterprise architecture
• Mentor junior and mid‑level software experts
• Support acquisition and source selection activities with technical expertise, as required

Do you have what it takes?

• TS/SCI with Poly Required
• Bachelor’s degree required; Master’s preferred
• 10+ years of experience supporting software‑intensive systems or enterprise platforms
• Deep understanding of modern software architectures and development lifecycles
• Proven experience providing technical oversight and advisory support (non‑developer role)
• Strong leadership, stakeholder engagement, and briefing skills
• Preferred Qualifications: Experience supporting IC, DoD, or DOJ mission‑critical programs, Experience advising on large‑scale or multi‑vendor software programs, Familiarity with Agile at scale (SAFe), DevSecOps, and cloud‑based architectures

This position is contingent upon contract award.

Pay Range: VTG’s estimated starting pay range is $100,000 - $215,000 annually, which is a general guideline for the geographic location. When extending an offer, VTG also considers work experience, education, skill level, market considerations and may possibly include contractual requirements which may cause an offer to fall outside of this range.