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Senior IT Architect | IT Architectural Engineering Services Location: Remote – Available across U.S. and Puerto Rico Clearance Level: Public Trust (ADP/IT-II); Tier 3 Investigation (NACLC) Citizenship: U.S. Citizenship required
Summary
We are seeking candidates for a potential opportunity as Senior IT Architect to join our team supporting the Defense Health Agency's (DHA) enterprise IT infrastructure. This role leads the design and development of scalable, secure, and interoperable IT systems that align with mission-critical healthcare delivery and readiness operations.
Key Responsibilities
Design architectural and technical solutions for enterprise-scale infrastructure supporting both on-premise and MED365 cloud environments.
Develop strategies and documentation that guide engineering implementation and architectural consistency across DHA systems.
Ensure system designs are interoperable, sustainable, and aligned with DHA Enterprise Architecture policies and governance.
Lead or support functional and technical requirements validation, including Requirements Worksheets (RWs) and Governance input.
Facilitate iRAM and RAM sessions and coordinate with SMEs, IA staff, and stakeholders during solution development.
Conduct feasibility and architectural assessments to ensure compliance with cybersecurity, scalability, and performance standards.
Draft and maintain Test and Evaluation Strategies (TES) to support operational readiness.
Manage architectural documentation throughout the systems lifecycle and provide support during acquisition planning.
Deliver Department of Defense Architecture Framework (DoDAF) artifacts to meet governance and compliance standards.
Lead re-architecture efforts for fielded solutions based on mission needs or system limitations.
Collaborate with DoD, MHS, and industry stakeholders to align technical direction and solve architecture/integration challenges.
Preferred Tools & Skills
DoDAF, RMF, and other DoD/ITIL architectural standards
Microsoft Visio, Enterprise Architect (or similar modeling/design tools)
Experience with Azure or other hybrid cloud platforms (e.g., MED365)
Technical writing and documentation skills
Systems Engineering and Requirements Management background
Familiarity with Agile and DevSecOps methodologies
Minimum Qualifications
Proven experience leading IT architecture and systems design efforts within complex enterprise environments.
Knowledge of DHA, MHS, or DoD IT environments and governance processes.
Strong ability to translate mission needs into scalable architectural solutions.
U.S. Citizenship and ability to obtain and maintain Public Trust (Tier 3/NACLC) clearance.
Education & Certifications
Required (Foundational – one of the following):
Bachelor’s degree in IT / Cybersecurity / Data Science / IS / CS (ABET or CAE accredited),
OR CISSP.
Required (CE – one of the following):
Microsoft Azure Solutions Architect Expert (AZ-305),
OR Microsoft Cybersecurity Architect Expert (SC-100).
Why Join Us?
This is an excellent opportunity to join a mission-focused team shaping the future of military health IT architecture. Help us build modern, resilient, and secure enterprise systems that support the health and readiness of those who serve.
📩 Apply today to make an impact as a Senior IT Architect in a dynamic federal IT environment.
Please Note: This position is contingent upon contract award. Candidates selected will be notified once the award has been confirmed.
Equal Employment Opportunity and E-Verify Statement
3500 Square , LLC is proud to be an Equal Opportunity Employer. We do not discriminate against any applicant or employee on the basis of race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, genetic information, protected veteran status, military status, citizenship status, or any other legally protected status, in accordance with federal, state, and local laws.
As a federal contractor, 3500 Square , LLC complies with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act (VEVRAA), providing equal opportunity and affirmative action for qualified individuals with disabilities and protected veterans.
All employment decisions are based on qualifications, merit, and business needs. Fair consideration is provided to all candidates, including U.S. citizens and nationals, as required by federal regulations regarding national origin discrimination.
If you require a reasonable accommodation to complete the application process due to a disability, please contact our Human Resources team at or 1-787-814-0087.
3500 Square , LLC participates in E-Verify. If E-Verify cannot confirm that you are authorized to work, you will receive written instructions and an opportunity to contact the Department of Homeland Security (DHS) or Social Security Administration (SSA) to resolve the issue before any employment action is taken against you, including termination.
Employers can only use E-Verify after you have accepted a job offer and completed the Form I-9.
3500 Square , LLC is an Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities.
