Job Requirements
Co Spgs, CO
Top Secret/SCI Polygraph not specified
Senior Level Career (10+ yrs experience)
$150,000 - $200,000
Job Description
Senior / Principal Network Architect
Location: Colorado Springs, CO (Hybrid potential)
Clearance Required: Active Secret Clearance (TS/SCI Preferred)
Position Type: Full-Time
About the Opportunity
The Posterity Group is seeking an exceptional Senior or Principal Network Architect to support a mission-critical Department of Defense customer.
This is not a traditional network engineering position.
We are not seeking someone whose primary value comes from configuring routers, managing switch stacks, or troubleshooting tickets.
We are seeking an architect.
Someone who understands not only how networks function, but why they are designed the way they are. Someone capable of balancing mission requirements, operational realities, technical constraints, cybersecurity considerations, and future growth while developing solutions that will support critical national security missions for years to come.
The ideal candidate possesses the rare ability to discuss enterprise strategy with senior government leaders in one meeting and engage in detailed engineering discussions with technical teams in the next.
This individual will be expected to provide thought leadership, technical credibility, sound judgment, and the ability to bridge mission requirements with practical engineering solutions.
Simply put, we are looking for someone who can see the battlefield from 30,000 feet and still understand what is happening at Layer 3.
Position Overview
The selected candidate will serve as a senior technical advisor responsible for helping shape the future of large-scale defense network environments. This role requires strategic thinking, architectural vision, and deep technical expertise across enterprise networking technologies.
The successful candidate will routinely collaborate with government leadership, engineers, cybersecurity professionals, mission operators, and program stakeholders to develop and evaluate solutions supporting highly visible and operationally significant missions.
This position requires an individual capable of evaluating competing technical approaches, identifying long-term risks, and helping organizations make better decisions.
Key Responsibilities
Develop and evaluate enterprise network architectures supporting mission-critical defense operations.
Lead and follow during architecture discussions, technical working groups, and design reviews involving government, contractor, and mission partner organizations.
Translate mission requirements into technical solutions and architectural roadmaps.
Assess existing network environments and identify opportunities to improve resiliency, performance, scalability, security, and operational effectiveness.
Evaluate technology tradeoffs and provide recommendations to government decision-makers.
Develop architecture artifacts, engineering assessments, technical recommendations, white papers, and executive-level briefings.
Collaborate with systems engineering, cybersecurity, cloud, and operations teams to ensure integrated solutions.
Support network modernization initiatives and future capability development efforts.
Provide technical leadership and mentorship to engineering teams.
Serve as a trusted advisor to senior government and contractor leadership.
Required Qualifications
Active Secret Clearance.
Bachelor's degree in Engineering, Computer Science, Information Technology, Systems Engineering, or related field.
Minimum 10 years of progressively responsible experience in network engineering, systems integration, enterprise architecture, or network design.
Demonstrated experience developing, evaluating, and implementing enterprise network architectures.
Strong understanding of routing, switching, transport technologies, network security, and large-scale enterprise environments.
Experience leading technical discussions and influencing architectural decisions.
Demonstrated ability to communicate effectively with both technical and non-technical audiences.
Experience developing technical documentation, engineering recommendations, and executive-level briefings.
Strong analytical and problem-solving skills.
Desired Qualifications
TS/SCI Clearance.
Experience supporting U.S. Space Force, Combatant Commands, NORAD, NORTHCOM, DISA, Missile Defense Agency, or similarly complex defense organizations.
Experience supporting enterprise network modernization efforts.
Familiarity with Zero Trust architectures, cloud integration, software-defined networking, and hybrid enterprise environments.
Experience serving as a Lead Architect, Chief Engineer, Technical Director, Principal Engineer, or similar senior technical leadership role.
Experience supporting large-scale operational or mission-focused environments where network performance directly impacts mission success.
Critical Success Factors
The successful candidate will be more than a network architect. They will be a trusted technical advisor.
We are seeking an individual with the intellectual confidence to challenge assumptions, identify blind spots, and offer alternative perspectives when appropriate. The ideal candidate is not a passive participant or a "yes person," but a thoughtful professional who can independently evaluate complex problems, present well-reasoned recommendations, and serve as a trusted sounding board to both technical teams and senior leaders.
This individual must possess the judgment to know when to advocate strongly for a position, when to incorporate new information, and when to align behind a decision once a course of action has been established.
The ideal candidate combines independent thinking with professional humility—someone who can challenge ideas without challenging people, offer candid technical advice, and contribute to rigorous decision-making while remaining a collaborative and trusted member of the team.
We value engineers who think critically rather than simply execute direction. The successful candidate will be expected to evaluate competing approaches, identify risks and unintended consequences, and provide honest, technically grounded recommendations—even when those recommendations challenge conventional thinking.
At the same time, this individual must be capable of operating within a team environment, accepting leadership decisions, and helping drive successful execution once a path forward has been chosen.
What Success Looks Like
Six months after joining the team, this individual is recognized by government leadership and technical stakeholders as a trusted advisor whose recommendations improve mission outcomes, reduce technical risk, and help shape the future direction of the enterprise.
Their greatest value will not be measured by devices configured or tickets closed, but by the quality of their judgment, the strength of their technical recommendations, and their ability to help organizations make sound decisions in complex environments.
If your greatest accomplishments involve shaping architectures, influencing technical direction, solving difficult integration challenges, and helping organizations make better decisions, we want to speak with you.
Location: Colorado Springs, CO (Hybrid potential)
Clearance Required: Active Secret Clearance (TS/SCI Preferred)
Position Type: Full-Time
About the Opportunity
The Posterity Group is seeking an exceptional Senior or Principal Network Architect to support a mission-critical Department of Defense customer.
This is not a traditional network engineering position.
We are not seeking someone whose primary value comes from configuring routers, managing switch stacks, or troubleshooting tickets.
We are seeking an architect.
Someone who understands not only how networks function, but why they are designed the way they are. Someone capable of balancing mission requirements, operational realities, technical constraints, cybersecurity considerations, and future growth while developing solutions that will support critical national security missions for years to come.
The ideal candidate possesses the rare ability to discuss enterprise strategy with senior government leaders in one meeting and engage in detailed engineering discussions with technical teams in the next.
This individual will be expected to provide thought leadership, technical credibility, sound judgment, and the ability to bridge mission requirements with practical engineering solutions.
Simply put, we are looking for someone who can see the battlefield from 30,000 feet and still understand what is happening at Layer 3.
Position Overview
The selected candidate will serve as a senior technical advisor responsible for helping shape the future of large-scale defense network environments. This role requires strategic thinking, architectural vision, and deep technical expertise across enterprise networking technologies.
The successful candidate will routinely collaborate with government leadership, engineers, cybersecurity professionals, mission operators, and program stakeholders to develop and evaluate solutions supporting highly visible and operationally significant missions.
This position requires an individual capable of evaluating competing technical approaches, identifying long-term risks, and helping organizations make better decisions.
Key Responsibilities
Develop and evaluate enterprise network architectures supporting mission-critical defense operations.
Lead and follow during architecture discussions, technical working groups, and design reviews involving government, contractor, and mission partner organizations.
Translate mission requirements into technical solutions and architectural roadmaps.
Assess existing network environments and identify opportunities to improve resiliency, performance, scalability, security, and operational effectiveness.
Evaluate technology tradeoffs and provide recommendations to government decision-makers.
Develop architecture artifacts, engineering assessments, technical recommendations, white papers, and executive-level briefings.
Collaborate with systems engineering, cybersecurity, cloud, and operations teams to ensure integrated solutions.
Support network modernization initiatives and future capability development efforts.
Provide technical leadership and mentorship to engineering teams.
Serve as a trusted advisor to senior government and contractor leadership.
Required Qualifications
Active Secret Clearance.
Bachelor's degree in Engineering, Computer Science, Information Technology, Systems Engineering, or related field.
Minimum 10 years of progressively responsible experience in network engineering, systems integration, enterprise architecture, or network design.
Demonstrated experience developing, evaluating, and implementing enterprise network architectures.
Strong understanding of routing, switching, transport technologies, network security, and large-scale enterprise environments.
Experience leading technical discussions and influencing architectural decisions.
Demonstrated ability to communicate effectively with both technical and non-technical audiences.
Experience developing technical documentation, engineering recommendations, and executive-level briefings.
Strong analytical and problem-solving skills.
Desired Qualifications
TS/SCI Clearance.
Experience supporting U.S. Space Force, Combatant Commands, NORAD, NORTHCOM, DISA, Missile Defense Agency, or similarly complex defense organizations.
Experience supporting enterprise network modernization efforts.
Familiarity with Zero Trust architectures, cloud integration, software-defined networking, and hybrid enterprise environments.
Experience serving as a Lead Architect, Chief Engineer, Technical Director, Principal Engineer, or similar senior technical leadership role.
Experience supporting large-scale operational or mission-focused environments where network performance directly impacts mission success.
Critical Success Factors
The successful candidate will be more than a network architect. They will be a trusted technical advisor.
We are seeking an individual with the intellectual confidence to challenge assumptions, identify blind spots, and offer alternative perspectives when appropriate. The ideal candidate is not a passive participant or a "yes person," but a thoughtful professional who can independently evaluate complex problems, present well-reasoned recommendations, and serve as a trusted sounding board to both technical teams and senior leaders.
This individual must possess the judgment to know when to advocate strongly for a position, when to incorporate new information, and when to align behind a decision once a course of action has been established.
The ideal candidate combines independent thinking with professional humility—someone who can challenge ideas without challenging people, offer candid technical advice, and contribute to rigorous decision-making while remaining a collaborative and trusted member of the team.
We value engineers who think critically rather than simply execute direction. The successful candidate will be expected to evaluate competing approaches, identify risks and unintended consequences, and provide honest, technically grounded recommendations—even when those recommendations challenge conventional thinking.
At the same time, this individual must be capable of operating within a team environment, accepting leadership decisions, and helping drive successful execution once a path forward has been chosen.
What Success Looks Like
Six months after joining the team, this individual is recognized by government leadership and technical stakeholders as a trusted advisor whose recommendations improve mission outcomes, reduce technical risk, and help shape the future direction of the enterprise.
Their greatest value will not be measured by devices configured or tickets closed, but by the quality of their judgment, the strength of their technical recommendations, and their ability to help organizations make sound decisions in complex environments.
If your greatest accomplishments involve shaping architectures, influencing technical direction, solving difficult integration challenges, and helping organizations make better decisions, we want to speak with you.
group id: 91173235