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Senior Information System Security Officer; ISSO

Job in Las Cruces, Dona Ana County, New Mexico, 88005, USA
Listing for: Parsons Oman
Full Time position
Listed on 2026-02-16
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer
Salary/Wage Range or Industry Benchmark: 120000 - 129000 USD Yearly USD 120000.00 129000.00 YEAR
Job Description & How to Apply Below
Position: Senior Information System Security Officer (ISSO)

Overview

Parsons is looking for a talented Senior ISSO to join our growing team!

In this Lead/Senior ISSO role you will develop, maintain, and implement information security standards, procedures, and guidelines for applications and databases. You will ensure that systems and organizational databases are protected from unauthorized access and use, and monitor systems, identify threats, and handle disaster recovery operations.

The max salary for this role is between $120k-$129k.

Responsibilities
  • Performs assessments of systems and networks within the networking environment or enclave and identifies where those systems/networks deviate from acceptable configurations, enclave policy, or local policy. This is achieved through passive evaluations (compliance audits) and active evaluations (vulnerability assessments).
  • Provide day to day direction, workload assignment, and task prioritization for the ISSO team.
  • Conduct regular one-on-ones, performance feedback, and career discussions for each team member.
  • Offer mentoring and coaching to the ISSO team on security engineering, RMF/assessment processes, documentation quality, and stakeholder communication.
  • Provide real-time guidance during system assessment, audits, and incident response activities.
  • Support skill-building in areas such as vulnerability management, security tooling, automation
  • Identify training opportunities, certification and courses aligned with each ISSO’s development goals.
  • In addition to Technical SME duties, the position is the primary manager (supervisor) with direct responsibility for supervising, mentoring, & coaching Mid-Level and Junior ISSOs (team of around
    5).
  • Plays a role in overall functional strategic planning.
  • Establishes strict program control processes to ensure mitigation of risks and supports for obtaining certification and accreditation of systems. This includes process support, analysis support, coordination support, security certification test support, security documentation support, investigations, software research, hardware introduction and release, emerging technology research inspections, and periodic audits.
  • Assists in the implementation of required government policy (e.g., NISPOM, DCID 6/3), and makes recommendations on process tailoring.
  • Performs analyses to validate established security requirements and recommends additional security requirements and safeguards where required.
  • Supports the formal Security Test & Evaluation (ST&E) required by each government accrediting authority through pre-test preparations, participation in the tests, analysis of the results, and preparation of required reports.
  • Periodically conducts a review of each system’s audits and monitors corrective actions until all actions are closed.
  • Contributes to and may lead the planning and implementation of large programs in the function, and regularly interfaces with senior management and executive leadership.
Qualifications
  • Active Top Secret/SCI with Polygraph.
  • Bachelors degree with typically 6+ years of relevant experience. Candidates with a Masters degree require 4+ years of relevant experience, and additional years of experience can qualify in lieu of a degree for non-degreed candidates.
  • Active certification meeting DoD 8140 (DoDD 8570) IAT-III guidelines is required for the position. Acceptable certifications include the CISA, GCIH, GCED, CISSP, and Security X (CASP+). Obtaining a certification that meets DoD 8140 (DoDD 8570)
    IAT-III guidelines is required within 6 months of hire if not currently held.
  • Strong leadership skills
  • Ability to coach and develop junior ISSOs
Security Clearance & Organization Context

An active Top Secret SCI w/Polygraph security clearance is required for this position. This position is part of our Federal Solutions team. The Federal Solutions segment delivers resources to our US government customers that ensure the success of missions around the globe. Our intelligent employees drive the state of the art as they provide services and solutions in the areas of defense, security, intelligence, infrastructure, and environmental.

We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and…

Position Requirements
10+ Years work experience
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