Lead Principal Software Engineer - TS/SCI

The Fountain Group LLC

Washington, DC

JOB DETAILS
SALARY
$90–$100 Per Hour
SKILLS
Amazon Web Services (AWS), Ansible, Architectural Services, Automation, CISSP - Certified Information Systems Security Professional, Cloud Computing, Cross-Domain Solutions (CDS), Distributed Applications, Distributed Computing, DoD Directive 8140, DoD Directive 8570, Engineering, Financial Control, Full Scope Polygraph, Government, Information Assurance Workforce System Architect and Engineer (IASAE), Intelligence Community, Machine Tool, Mentoring, Python Programming/Scripting Language, Sensitive Compartmented Information (SCI), Sensitive Compartmented Information Facility (SCIF), Software Administration, Software Engineering, Technical Leadership, Top Secret Clearance, User Interface Tools
LOCATION
Washington, DC
POSTED
30+ days ago

Top Secret/SCI with Active Full Scope Polygraph – must be active prior to start

Pay: $90-100/hour. W2 only.
Duration:5 years
100% Onsite near Washington, DC
Employment Type: Full-Time Immediate

Position Overview
We are seeking a Senior Software Engineer to support a mission-critical program within the Intelligence Community. This is an on-site SCIF position requiring a TS/SCI clearance with an active Full Scope Polygraph prior to consideration.
 

The SWE Level 3 is a senior engineer capable of designing, implementing, and improving distributed application orchestration logic across a Kubernetes-native platform in a classified environment. This role carries architectural authority and mentorship responsibility: the successful candidate will lead the development of reusable Helm charts, GitOps templates, and deployment strategies; contribute to platform-wide architecture decisions; and guide junior engineers through design decisions and tradeoffs.

 

Qualifications:
Top Secret/SCI with Active Full Scope Polygraph – must be active prior to start
Bachelor's degree preferred, equivalent experience may be substituted.
8+ years of software engineering experience, with majority in cloud-native, Kubernetes-based, or distributed systems contexts.
 
Required Qualifications:
•             Active TS/SCI clearance with Full Scope Polygraph - must be active prior to start
•             Deep experience coding in Go and/or Python in cloud-native contexts
•             Strong Kubernetes expertise: CRDs, Helm, GitOps, multi-tenant deployments
•             Experience with event-driven or agent-based systems (Kafka, controller patterns)
•             Familiarity with infrastructure automation (Terraform, Ansible)
•             Demonstrated end-to-end system component delivery ownership
•             Proven mentorship and technical leadership capability
•             Comfortable balancing automation with operator oversight in classified environments
 
Desired Skills
•             TypeScript for frontend or tooling development
•             OpenShift or Rancher Government Solutions in air-gapped deployments
•             Service mesh technologies (Istio, Linkerd)
•             Observability tooling: Prometheus, Grafana, OpenTelemetry
•             AWS GovCloud, C2S/SC2S classified cloud experience
•             Cross-domain solution (CDS) experience
•             DoD 8140 IASAE Level II or III (CASP+, CISSP)

By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at Privacy Policy

 

About the Company

T

The Fountain Group LLC

The Fountain Group provides Contingent Labor, Statement-of-Work, and Contingent-to-Permanent resources to clients with an internal/external Contingent Labor Managed Service Program or Clients without a program. The Fountain Group is committed to the belief that we all share in the responsibility to conduct our businesses in a socially and environmentally responsible manner. We base this on the premise that a company is much more than the products it offers. The effect a company has on the environment, the people and the communities it serves reflects the company’s dedication to being not only a good business, but to being a good corporate citizen. The Fountain Group believes the key to servicing a client is to identify the client demand precisely. Therefore, The Fountain Group focused its efforts on building and developing a process, which can identify an exact match for our client’s needs. Our process utilizes modern technology combined with 30+ years of Talent Acquisition experience to deliver Precision resources. Financial strength is prominent among The Fountain Group’s corporate values. The future of our business will be built on the innovation, compassion, outstanding services and technology, but a solid financial foundation is required to carry us forward to meet our business goal and support our long term vision.

COMPANY SIZE
500 to 999 employees
INDUSTRY
Staffing/Employment Agencies
WEBSITE
https://www.thefountaingroup.com/