3500 Square LLC
Job Posting: Senior Identity Engineering Services | R&D Specialist
Location: San Antonio, TX
Clearance Required: Public Trust (ADP/IT-II); Tier 3 Investigation (NACLC)
Citizenship Requirement: U.S. Citizenship required.
We are seeking a Senior Identity Engineer - R&D Specialist to join our Identity Engineering Services team, supporting advanced identity infrastructure and access management capabilities for a global federal healthcare environment. This role combines hands-on technical expertise with innovation, research, and development of secure, scalable identity solutions for the Military Health System (MHS).
Key Responsibilities:
Candidates must meet one of the following combinations:
Location: San Antonio, TX
Clearance Required: Public Trust (ADP/IT-II); Tier 3 Investigation (NACLC)
Citizenship Requirement: U.S. Citizenship required.
We are seeking a Senior Identity Engineer - R&D Specialist to join our Identity Engineering Services team, supporting advanced identity infrastructure and access management capabilities for a global federal healthcare environment. This role combines hands-on technical expertise with innovation, research, and development of secure, scalable identity solutions for the Military Health System (MHS).
Key Responsibilities:
- Design and develop identity, credential, and access management (ICAM) solutions aligned with DoD cybersecurity and ICAM standards.
- Engineer and sustain directory services architectures such as ADDS, ADLDS, and Secure DNS based on DHA server baselines and DISA STIGs.
- Research, prototype, and test next-generation PKI, PKE, PAM, and cryptographic key management capabilities.
- Maintain and update engineering artifacts including the mJAD Architecture & Design Document and technical packages.
- Support and enhance PKI infrastructure including certificate validation tools (Axway), Middleware (e.g., ActivIdentity), and CA migration processes.
- Engineer identity solutions across hybrid cloud and on-premise environments to manage users, systems, and SaaS resources.
- Design and implement PKE solutions using X.509 certificates for secure authentication, encryption, and data integrity across MHS applications.
- Provide support for certificate-enabled tools like ActivClient and Validator Suites.
- Apply research methods in computer science, network distribution, embedded systems, and secure software design.
- Contribute to the development of scalable identity architectures using formal modeling, analysis, and performance validation techniques.
- Microsoft Active Directory, ADLDS, DNS
- DoD PKI / Internal Medium Assurance (IMA)
- ActivIdentity ActivClient, Axway Validator Suite
- DoD ICAM Reference Architecture and DoDI 8520.02 / 8520.03
- PowerShell, LDAP, X.509 certificate utilities
- Microsoft Windows Server OS
- Remedy Ticketing System
- DISA STIGs and DoD security policies
- At least 5 years of hands-on experience in identity engineering, cybersecurity R&D, or PKI infrastructure within a federal or DoD setting.
- Proven experience designing and testing scalable, secure identity architectures and implementing PKI/PKE systems.
- Strong analytical, documentation, and software development skills in secure system environments.
- Ability to obtain and maintain a Public Trust (Tier 3/NACLC) clearance.
Candidates must meet one of the following combinations:
- Certification: Microsoft Certified: Cybersecurity Architect Expert or Azure Solutions Architect Expert
AND one of the following:- Bachelor's degree in Information Technology, Cybersecurity, or a related discipline
- Possession of a DoD 8140 Baseline Certification (e.g., GCLD, CCE, CASP+, CEH, GLSC, CISSP)