Senior Identity Engineer | Systems Developer

3500Square; United States; Remote; USD 140,000 - 180,000; Full time

Job summary

3500 Square, LLC is seeking a Senior Identity Engineer | Systems Developer to join its Identity Engineering Services team, supporting a large-scale federal IT environment. This remote role spans on-prem and cloud, focusing on secure identity, access, and certificate management for DHA infrastructure.

You will design and implement enterprise identity solutions, maintain AD/PKI components, and collaborate with cybersecurity and systems teams to ensure DoD ICAM compliance and successful integration

Qualifications

• Minimum 5 years in systems development, identity engineering, or PKI/PKE in a federal/DoD environment.
• Proficiency in enterprise identity services design and implementation.
• Knowledge of DoD ICAM architecture, PKI validation, and certificate-based authentication.

Responsibilities

• Design, document, and implement enterprise identity, access, and credential management solutions per DoD ICAM standards.
• Engineer and maintain directory services (AD DS/ADLDS) and Secure DNS per baselines and STIGs.
• Support PKI infrastructure and CA migration activities.
• Maintain PKI certificate validation suites and issue certs across LAN/WLAN/Med-COI.
• Engineer identity solutions integrating with SaaS and hybrid cloud/on-prem environments.
• Research and develop scalable system-level software solutions.
• Collaborate across engineering, cybersecurity, and systems teams for integration of identity services.

Skills

Identity engineering

System design

Documentation

Communication

Education

Bachelor’s degree in IT / Cybersecurity / Data Science / IS / CS

CISSP / SSCP

Tools

Active Directory

PKI/cryptography

DoD ICAM references

ADDS/ADLDS

PowerShell

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Senior Identity Engineer | Systems Developer

30+ days ago Requisition ID: 1066

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 as Senior Identity Engineer | Systems Developer to join our Identity Engineering Services team in support of a large-scale federal IT environment. This position plays a critical role in engineering and maintaining identity, credential, and access management (ICAM) solutions that secure the Defense Health Agency’s infrastructure across both on-premise and cloud environments.

Key Responsibilities

• Design, document, and implement enterprise identity, access, and credential management solutions in compliance with DoD ICAM standards.
• Engineer and maintain directory services, including Active Directory Domain Services (ADDS), ADLDS, and Secure DNS aligned with DHA baselines and DISA STIGs.
• Support PKI infrastructure: middleware (ActivIdentity), Validator Suites (Axway), and CA migration activities per DoDI 8520.02.
• Maintain PKI Certificate Validation Suites and issue certificates across LAN/WLAN and Med-COI environments.
• Engineer secure identity management solutions integrating with SaaS and resource partners across hybrid cloud and on-prem environments.
• Implement PKE solutions utilizing X.509 certificates to support MHS applications and ensure compliance with DoDI 8520.03.
• Research and develop scalable system-level software solutions using advanced computer science and mathematical principles.
• Collaborate across engineering, cybersecurity, and systems teams to ensure successful integration of identity services into mission-critical systems.

Preferred Tools & Technologies

• Microsoft Active Directory, ADLDS, Secure DNS
• DoD PKI / Internal Medium Assurance (IMA)
• ActivIdentity ActivClient, Axway Validator Suite
• DoD ICAM Reference Architecture, DoDI 8520.02 / 8520.03
• PowerShell, LDAP, X.509 utilities
• Remedy Ticketing System
• Microsoft Windows Server OS
• DISA STIG compliance frameworks

Minimum Qualifications

• Minimum of 5 years of experience in systems development, identity engineering, or PKI/PKE infrastructure within a federal or DoD environment.
• Proficiency in designing and implementing directory and identity services at an enterprise level.
• Demonstrated knowledge of DoD ICAM architecture, PKI validation processes, and certificate-based authentication solutions.
• Strong communication and documentation skills for technical and non-technical audiences.
• Ability to obtain and maintain a 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 / SSCP.

Required (CE – one of the following):

Microsoft Identity & Access Administrator (SC-300),

OR Microsoft Entra ID Governance Specialty.

Why Join Us?

This is a unique opportunity to shape the future of secure identity services within a global federal healthcare mission. Join our expert engineering team and help safeguard access to critical IT systems for service members and their families.

Please Note: This position is contingent upon contract award. Candidates selected will be notified once the award has been confirmed.

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 decisions. 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 [e-mail] 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.