SECTION I · THE BRIEF
Brief #41320Updated 13 JUL 2026ARLINGTON, VAGreenhouseSOFTWARE COMPANIES
Employbl Company Profile

Lead Full Stack Developer

Two Six Technologies provides cybersecurity and technology solutions for national security customers. The company delivers R&D, innovation, productization, and implementation expertise in cyber, data science, mobile,…

Location
Arlington, VA
Company size
200–1,000
Posted
1w ago
Via
Greenhouse
Section II · Premium ProfileMembers only
  • 01Comp band & equity packageLocked
  • 02Seniority & experience requirementsLocked
  • 03Interview process & rubricLocked
  • 04Hiring manager & team contextLocked
  • 05Growth trajectory in this roleLocked
  • 06Offer & decision timelineLocked

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Lead Full Stack Developer · Two Six Technologies

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Job title
Lead Full Stack Developer
Job location
Arlington, Virginia
Job description

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the boundaries of what’s possible to empower our team and support our customers in building a safer global future.

Overview of Opportunity 

Two Six Technologies is actively seeking a Lead Full Stack Developer to join our team. The team is composed of intellectual individuals, passionate about developing reverse engineering tooling, system architecture, technical leadership, and complex software implementation. The team is growing and looking for someone with a full-stack background who has an understanding of how to synthesize program requirements into actionable tasks and lead technical teams through implementation and scaling. If you are actively using modern frontend frameworks, Python, and cloud-based architectures, the team wants to talk to you!

What you will do:

  • Serve as a technical lead, bridging the gap between high-level visionary goals and tactical implementation for critical national security research programs.
  • Support the Principal Investigator by breaking down complex deliverables into actionable tasks and overseeing the full stack development process from inception to deployment.
  • Lead technical implementation teams 100% in-office, with a primary focus on hands-on lab operations in Arlington and occasional travel to Herndon.
  • Ensure the successful completion of program deliverables through sound technical judgment and the leadership of functional engineering staff.

What you will need (basic qualifications)

  • Bachelor’s degree in Computer Science or a related field and 7+ years of experience in a similar software engineering role (extensive experience in Software Engineering, Computer Science, or related field may substitute for a degree requirement).
  • Proven ability to lead the planning and execution of technical tasks, including task prioritization, schedule management, and providing direction to other team members.
  • Advanced proficiency in development programming languages such as Python and JavaScript, with extensive experience working in Linux-based environments.
  • Deep understanding of the software development lifecycle, including version control (git), containerization and scaling (Kubernetes), and CI/CD automated tools (Jenkins, GitLab).
  • Must possess an active Top Secret (TS) clearance with SCI eligibility and be willing to work 100% in person and in a lab environment.
  • This role is based in-person at our Arlington, VA office, with a planned transition to our Herndon, VA lab facility in the future. Candidates must be able to commute to both locations.

Nice to have (preferred)

  • Experience designing and deploying scalable applications within AWS, OpenStack, or other cloud-based architectures.
  • Strong professional experience with modern frontend frameworks, specifically Vue.js.
  • Familiarity with Infrastructure-as-Code practices and tools such as Ansible, Terraform, or OpenTofu to optimize service delivery.
  • Prior experience supporting DoD or national security R&D projects, particularly in transitioning technology to operational end-users.
  • Demonstrated success in providing technical mentorship and guidance to junior and staff-level engineering staff.

Security Clearance:

  • Must possess an active Top Secret (TS) clearance with SCI eligibility

#LI-ZS1

#LI-ONSITE

Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. We believe in rewarding skills, experience, and performance. Our offerings include but are not limited to, medical, dental, and vision insurance, life and disability insurance, retirement benefits, paid leave, tuition assistance and professional development.

The projected salary range listed for this position is annualized. This is a general guideline and not a guarantee of salary. Salary is one component of our total compensation package and the specific salary offered is determined by various factors, including, but not limited to education, experience, knowledge, skills, geographic location, as well as contract specific affordability and organizational requirements.

Salary Range
$171,164$256,746 USD
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Two Six Technologies headquarters

Arlington, VA

Company size

2001,000 employees

Founded

2021

Total raised

$42,360,712

View company profile ↗

Funding rounds

  • Series Unknown$10M
  • Series Unknown$2.2M
  • Series Unknown$8.7M
  • Series Unknown$8.7M
  • Series Unknown$10M
  • Series Unknown$10M
  • Series Unknown$4.8M
  • Series Unknown$4.8M
  • Series Unknown$18.9M
  • Series Unknown$18.9M