Apply to NISC's Information Security & Technical Support Teams
NISC
Location: Remote – Available across U.S. and Puerto Rico
Clearance Level: Public Trust (ADP/IT-II) or Tier 3 Investigation (NACLC)
Citizenship: U.S. Citizenship required
We are seeking candidates for a potential opportunity 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).
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.
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
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.
Bachelor’s degree in IT / Cybersecurity / Data Science / IS / CS (ABET or CAE accredited),
Microsoft Identity & Access Administrator (SC-300),
OR Microsoft Entra ID Governance Specialty.
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.
Originally posted on Himalayas
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Location: Remote – Available across U.S. and Puerto Rico
Clearance Level: Public Trust (ADP/IT-II) or Tier 3 Investigation (NACLC)
Citizenship: U.S. Citizenship required
We are seeking candidates for a potential opportunity 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).
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.
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
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.
Bachelor’s degree in IT / Cybersecurity / Data Science / IS / CS (ABET or CAE accredited),
Microsoft Identity & Access Administrator (SC-300),
OR Microsoft Entra ID Governance Specialty.
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.
Originally posted on Himalayas