Principal Technical Architect – Enterprise Application Modernization

Concept-Solution; Reston (VA); Hybrid; USD 250,000 - 275,000; Full time

Job summary

Concept Solutions, LLC (CS) seeks a Principal Technical Architect to provide enterprise-level leadership for a mission-critical DoW modernization initiative. You will own the target architecture, establish technical standards, and guide decisions across a secure, integrated platform, partnering with government stakeholders to ensure scalable and interoperable solutions.

You will lead architectural direction, oversee integration with legacy systems and manage governance, while collaborating with

Qualifications

• 15+ years of experience in software architecture, including hands-on delivery of enterprise-scale solutions.
• Demonstrated experience designing and delivering identity-federated, zero-trust web platforms.
• Hands-on experience with event-driven architectures and integration with legacy systems.
• Proven track record of developing architectures that multiple engineering teams have successfully implemented.
• Strong technical leadership skills and the ability to communicate complex architectural decisions to technical teams, government stakeholders, and review boards.

Responsibilities

• Own and maintain the target architecture, including all architectural design decisions of record.
• Define and oversee the architecture for identity federation and attribute-based access control, the composable application shell, the event-driven work-item hub, externalized business rules, the capability registry, and the integration gateway.
• Establish technical direction and architectural standards to support secure, scalable, and interoperable enterprise applications.
• Serve as the senior technical authority over the Platform Lead and development squad leads, ensuring architectural consistency across the program.
• Define the integration levels for applications connecting to the enterprise platform and establish conformance checks for onboarding.

Skills

Identity federation

Zero-trust architecture

Event-driven architecture

Legacy integration

Technical leadership

Tools

Keycloak

OPA (Open Policy Agent)

Debezium

Envoy

Kubernetes (AWS GovCloud)

Job description

Description

Concept Solutions, LLC (CS) is seeking a Principal Technical Architect to provide enterprise-level technical leadership for a mission-critical application modernization initiative supporting the Department of War (DoW).

In this role, you will own the target architecture, establish technical standards, and guide architectural decisions across a modern, secure, and integrated application platform. You will serve as the principal technical authority, working closely with the Platform Lead, development teams, and government stakeholders to ensure solutions are scalable, interoperable, secure, and aligned with program objectives.

This is an opportunity for an experienced architect to shape a complex modernization effort, establish architectural direction, and lead the technical integration of modern applications with legacy systems.

Enterprise Architecture & Technical Leadership

• Own and maintain the target architecture, including all architectural design decisions of record.
• Define and oversee the architecture for identity federation and attribute-based access control, the composable application shell, the event-driven work-item hub, externalized business rules, the capability registry, and the integration gateway.
• Establish technical direction and architectural standards to support secure, scalable, and interoperable enterprise applications.
• Serve as the senior technical authority over the Platform Lead and development squad leads, ensuring architectural consistency across the program.

Application Integration & Governance

• Define the integration levels through which applications connect to and participate in the enterprise platform.
• Establish architectural conformance checks and technical requirements governing application onboarding.
• Review and approve application manifests before applications are admitted into the capability registry.
• Ensure architectural decisions support secure integration between modern applications and legacy systems.

Stakeholder Engagement & Architecture Oversight

• Present and defend architectural designs and decisions during sprint demonstrations, phase-exit reviews, and customer architecture and authorization boards.
• Collaborate with technical teams and government stakeholders to ensure solutions align with established architectural requirements.
• Provide architectural guidance throughout implementation to ensure development teams deliver solutions consistent with the approved target architecture.

Requirements

• 15+ years of experience in software architecture, including hands-on delivery of enterprise-scale solutions.
• Demonstrated experience designing and delivering identity-federated, zero-trust web platforms.
• Hands-on experience with event-driven architectures and integration with legacy systems.
• Proven track record of developing architectures that multiple engineering teams have successfully implemented.
• Strong technical leadership skills, including the ability to establish architectural direction and guide multidisciplinary development teams.
• Ability to communicate complex architectural decisions effectively to technical teams, government stakeholders, and review boards.
• Active Secret security clearance or higher.

Preferred Qualifications

• Experience with Keycloak, Open Policy Agent (OPA), Debezium, Envoy, and Kubernetes deployed within AWS GovCloud.
• Familiarity with Department of War (DoW) Risk Management Framework (RMF) requirements.

Work Location and Schedule

• Location: Hybrid. Reston, VA headquarters and approved remote locations within the United States, with on-site work at Government facilities in Northern Virginia and Maryland as required. Government-furnished equipment will be used for all access to Government environments.
• Schedule: Full-time, 40 hours per week, Monday through Friday, with core hours from 9:00 a.m. to 3:00 p.m. Eastern
• Security Requirement: U.S. citizenship required. Must be eligible to obtain and maintain a DoW security clearance. An active Secret clearance or higher
• Compensation: $250,000-$275,000 annually, depending on experience.

Company Profile:

Founded in 1999 and headquartered in Reston, Virginia, Concept Solutions, LLC (CS) is a leading small business in technology, engineering, and management consulting. We are the innovative and agile force behind strategic solutions that enhance organizational efficiency and safeguard our nation across Aerospace, Defense, and National Security sectors.

For over 25 years, CS has been a trusted partner for the Federal Aviation Administration (FAA), Department of Homeland Security (DHS), Department of Justice (DOJ), Department of Defense (DoD) and other federal agencies delivering vital IT, security, and project management services.

Our commitment to excellence is reflected in our adherence to CMMI-DEV ML3, ISO 9001:2015, ISO/IEC 20000-1:2018, and ISO/IEC 27001-1:2013 standards. CS boasts company highlights that include:

• Over two decades of experience across over $300 million in contract awards supporting critical FAA programs
• Multiple contract vehicles providing opportunities across FAA, DoD, NOAA, and other Federal agencies
• Innovation Council - CS maintains an active Internal Research and Development (IR&D) program that is geared towards identifying emerging technologies and pursuing technological innovations

At CS, we know our success stems from our talented team. That's why we prioritize the wellbeing and growth of our employees, fostering a positive culture centered on innovation, engagement, and career development.

Benefits: Concept Solutions offers a competitive benefits and salary package you would receive from a large company. We offer health, dental, vision and life insurance, as well as a comprehensive 401(k) plan with matching and immediate vesting.

Concept Solutions is an Equal Opportunity Employer, and we value workplace diversity. We invite resumes from all interested parties and consider applicants for all positions without regard to race, color, religion, sex, national origin, age, marital status, sexual preference, personal appearance, family responsibility, the presence of a non-job-related medical condition or physical disability, matriculation, political affiliation, veteran status, or any other legally protected status. Concept Solutions is a VEVRAA federal contractor, and we request priority referral of veterans for available positions.