Specialist, Information System Security III

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Bloomington, IN, USA
In-Office
Expert/Leader
Software
The Role
Provides expert cybersecurity engineering, architecture, and systems security support for sensitive Department of War networks and information systems. Integrates security throughout the system lifecycle, develops RMF documentation, supports IATT and ATO certification, conducts threat modeling and vulnerability assessments, analyzes security logs, mitigates incidents, and designs Zero Trust, firewall, cryptographic, network, database, and enterprise security solutions. Advises government stakeholders and engineering teams as an IASAE Level III subject matter expert.
Summary Generated by Built In

Description

Warrant Technologies is seeking an Information System Security Engineer (ISSE) Level III—aligned with the DoD 8570/8140 IASAE Level III (Information Assurance System Architecture and Engineering) to provide expert-level security engineering, design, and architecture support for complex, critical Department of War networks and information systems. Serving as a Subject Matter Expert (SME), this role integrates security principles throughout the entire system lifecycle to protect highly sensitive systems against sophisticated threats.

Responsibilities:

Systematically integrates security functional requirements into system acquisition, engineering, and development phases. 

Hardens application interfaces, data repositories, and cloud environments using systems engineering methodologies. 

Prepares, reviews, and maintains system security documentation under the Risk Management Framework (RMF), including SSPs, SAPs, SARs, and POA&Ms. 

Supports system certification activities to secure and maintain an Interim Authority to Test (IATT) and Authority to Operate (ATO). Acts as the primary technical security advisor/SME to Government stakeholders, program managers, and system engineering teams. 

Leads technical walkthroughs, security reviews, and participates in intelligence-community or industry-based technical working groups. 

Conducts threat modeling, vulnerability assessments, and analyzes security logs to proactively harden defenses against adversaries. 

Provides technical expertise to contain and mitigate real or potential system security incidents. 

Designs and architects robust end-to-end security solutions for networks, databases, and enterprise systems. 

Incorporates Zero Trust principles, boundary protection, firewalls, and cryptographic controls to safeguard critical warfighting infrastructure.

Requirements

• Minimum of 10+ years of progressive experience in system engineering, information assurance, or cybersecurity

• Bachelor’s or master's degree in computer science, Information Security, System Engineering, or a related technical discipline. Four years of direct ISSE experience may be substituted for a degree

•Must meet IASAE Level III baseline qualifications requirements

• Security+, CASP+ or CISSP preferred

•Security Clearance: Secret

Skills Required

  • 10+ years of progressive experience in systems engineering, information assurance, or cybersecurity
  • Bachelor's or master's degree in computer science, information security, systems engineering, or a related technical discipline
  • Four years of direct ISSE experience may substitute for the degree
  • DoD 8570/8140 IASAE Level III baseline qualifications
  • Security+, CASP+, or CISSP certification
  • Secret security clearance

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The Company
HQ: Bloomington, IN
14 Employees
Year Founded: 2013

What We Do

At Warrant Technologies, we love a challenge. We’re a team of software developers and systems engineers who design, build, and test solutions to solve complex problems. Located in downtown Bloomington, Indiana, Warrant Technologies is a service-disabled veteran-owned small business (SDVOSB) specializing in training systems and software engineering from requirements definition through design, development, test, configuration management, and delivery.

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