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Information Systems Security Engineer

Job in Washington, District of Columbia, 20022, USA
Listing for: Systems Planning and Analysis, Inc.
Full Time position
Listed on 2026-09-15
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, Network Security, Information Security & Data Protection
Salary/Wage Range or Industry Benchmark: 110000 - 155000 USD Yearly USD 110000.00 155000.00 YEAR
Job Description & How to Apply Below

Overview

Systems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are known for continuous innovation for our government customers, in both the US and abroad. Our exceptionally talented team is highly collaborative in spirit and practice, producing Results that Matter. Come work with the best!

We offer opportunity, unique challenges, and clear-sighted commitment to the mission. SPA:
Objective. Responsive. Trusted.

The Cybersecurity Team under SPA's Information Technology Department establishes and maintains a robust cybersecurity posture and policy architecture across SPA's information systems. The team manages cyber policy, develops control implementations and system security plans, continuously monitors SPA systems, and performs routine cyber operations including patching, auditing, and incident response. Cybersecurity is critical to SPA's mission, therefore we strive to offer secure solutions that ensure data is protected while meeting the needs of the business.

In this role, you will serve as the Information Systems Security Engineer (ISSE) for multiple classified systems operating at SPA's Headquarters in Alexandria, VA and nearby satellite office locations. This requires the individual to operate with autonomy as the lead operator for many of SPA's defensive cyber tools. This role also serves as the primary point of contact between SPA and government Cybersecurity Service Providers (CSSPs) that support SPA's classified infrastructure.

SPA has an immediate or near-term need for an ISSE

Responsibilities

The Information System Security Engineer (ISSE) handles daily security operations and continuous monitoring for classified networks, with a heavy focus on ACAS and Trellix ESS tools. In this role, you will run regular reviews and technical inspections to find and fix security vulnerabilities. You will perform system audits, handle incident response tasks, and track technical security guidance across the network. You will collaborate with networking teams to build accurate asset lists, configure ACAS policies using current best practices, and run daily vulnerability scans on SIPR networks.

Daily tasks include checking dashboards for login failures, high vulnerability counts, or highly exploitable vulnerabilities. You will troubleshoot credential issues, work with system and network admins to resolve authentication problems within a week, and send compliance reports to leadership every two weeks. You will also run weekly discovery and compliance scans, manually upload monthly DoD audit files, and set up Nessus agents.

Additionally, you will maintain the latest Trellix point products on Windows and Linux systems, perform DISA STIG reviews, and manage compliance dashboards. You will coordinate with the CSSP to ensure ACAS and ESS tools are working properly, resolve data reporting issues, and help the team prepare for DCSA Technical Reviews, incident response reviews, and Cyber Operational Readiness Assessments (CORA).

Qualifications

Required Qualifications:

  • Bachelor's degree in an Information Technology related field or equivalent work experience and certifications.
  • Four (4) or more years of related work experience in information system security with at least one (1) year directly supporting classified systems.
  • Must meet DoD 8140 certification requirements at IAM Level I or higher (such as Security+ CE, CAP, or GSLC).
  • Ability to work independently and handle tasks with minimal supervision.
  • Active DoD Top Secret security clearance.
  • Solid understanding of networking basics, including IP routing, subnets, firewalls, VLANs, ports, and protocols.
  • Practical knowledge of the Risk Management Framework (RMF) and NIST 800-53 controls.

Desired

Qualifications:

  • Hands-on experience installing, configuring, and troubleshooting Trellix Endpoint Security (ESS) products.
  • Experience performing vulnerability management using tools like ACAS, Nessus, or Tanium.
  • Experience reviewing Event Logs, Syslogs, and Splunk logs to troubleshoot technical errors.
  • Experience configuring systems using DISA Security Technical Implementation Guides (STIGs) and STIG Viewer.
  • Linux and Windows administration experience, specifically for solving credential and Trellix installation issues.
  • Prior experience with DCSA reviews or direct involvement with Cyber Operational Readiness Assessments (CORA).

Many jobs at SPA require obtaining, holding, and…

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