Senior Engineer | R&D Specialist

Job DescriptionJob DescriptionJob Posting: Senior Engineering Services | R&D Specialist n

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 Engineer – R&D Specialist to join our Engineering Services team, supporting advanced 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 solutions for the Military Health System (MHS).

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  Design and develop , credential, and access management (ICAM) solutions aligned with DoD cybersecurity and ICAM standards.

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  Engineer and sustain directory services architectures such as ADDS, ADLDS, and Secure DNS based on DHA server baselines and DISA STIGs.

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  Research, prototype, and test next- PKI, PKE, PAM, and cryptographic key management capabilities.

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  Maintain and update engineering artifacts including the mJAD Architecture & Design Document and technical packages.

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  Support and enhance PKI infrastructure including certificate validation tools (Axway), Middleware (e.g., ActivIdentity), and CA migration processes.

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  Engineer solutions across hybrid cloud and on-premise environments to manage users, systems, and SaaS resources.

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  Design and implement PKE solutions using X.509 certificates for secure authentication, encryption, and data integrity across MHS applications.

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  Provide support for certificate-enabled tools like ActivClient and Validator Suites.

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  Apply research methods in computer science, network distribution, embedded systems, and secure software design.

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  Contribute to the development of scalable architectures using formal modeling, analysis, and performance validation techniques.

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Tools & Technologies: n

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  Microsoft Active Directory, ADLDS, DNS

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  DoD PKI / Internal Medium Assurance (IMA)

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  ActivIdentity ActivClient, Axway Validator Suite

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  DoD ICAM Reference Architecture and DoDI 8520.02 / 8520.03

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  PowerShell, LDAP, X.509 certificate utilities

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  Microsoft Windows Server OS

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  Remedy Ticketing System

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  DISA STIGs and DoD security policies

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Minimum Qualifications: n

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  At least 5 years of hands-on experience in engineering, cybersecurity R&D, or PKI infrastructure within a federal or DoD setting.

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  Proven experience designing and testing scalable, secure architectures and implementing PKI/PKE systems.

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  Strong analytical, documentation, and software development skills in secure system environments.

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  Ability to obtain and maintain a Public Trust (Tier 3/NACLC) clearance.

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Education & Certifications: n

Candidates must meet one of the following combinations:

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  Certification: Microsoft Certified: Cybersecurity Architect Expert or Azure Solutions Architect Expert
  AND one of the following:

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    Bachelor’s degree in Information Technology, Cybersecurity, or a related discipline

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    Possession of a DoD 8140 Baseline Certification (e.g., GCLD, CCE, CASP+, CEH, GLSC, CISSP)

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