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From the employer's careers site First seen 28 Oct 2026 · Still live on 31 Oct 2026

Countermeasures Engineer

Leidos Chambersburg, PA senior full-time

Salary

$107,900 - $195,050 per year

Apply on Leidos

Description

We are seeking a Countermeasures Engineer to support the DISA DECO Task Order 22 Network Assurance (NA) Program. As a Countermeasures Engineer, you will refine and maintain the defence of Cross Domain Enterprise Services (CDES) infrastructure, engaging with customers, anticipating their needs, and delivering flawlessly.

The successful candidate will demonstrate a strong understanding of Cybersecurity fundamentals, threat actor TTP frameworks such as the MITRE ATT&CK framework, and developing and deploying Cybersecurity threat detection and mitigation rules and analytics.

Primary Responsibilities:

  • Establish baseline security relevant data in accordance with NSA National Cross Domain Services Management Office (NCDSMO) Raise the Bar (RTB) standards.
  • Maintain integrity and efficacy of customer configurations; establish baseline customer configuration as part of onboarding; work with the customer to track changes to the infrastructure.
  • Work with primary monitoring centers to validate access to data and CDES index/indices with a SIEM.
  • Collaborate with other teams to apply threat intelligence to the development of analytics and countermeasures; develop analytics and countermeasures.
  • Track and make recommendations for RTB compliance by DISA and mission partners.
  • Keep abreast of RTB standards; work with the DISA CDES office and NCDSMO to understand changes to the standards; determine changes needed by DISA CSSP to assist with compliance.
  • Work with peer teams to establish data health/monitoring dashboards.

Basic Qualifications:

  • Active DoD Secret security clearance or higher (program can support up to TS)
  • Bachelor's degree from an accredited college in a related discipline with 4+ yrs of professional experience; additional or equivalent experience can be substituted in lieu of a degree.
  • Knowledge of Cyber Network Defense (CND) with regards to protect, detect, respond and sustain within a Computer Incident Response organisation.
  • Ability to work independently in a high visibility, frequently changing environment.
  • Understanding of enclave-level networking and sensor technologies.
  • Understanding of Endpoint Detect and Response (EDR) technologies.
  • Active DoD-8570 IAT Level 2 baseline certification (Security+ CE) at start date.
  • Motivated self-starter with strong written and verbal communication skills.

Preferred Qualifications:

  • Experience with DISA and DoD Networks.
  • User-level experience with Microsoft SharePoint.
  • Privileged-user level experience with Microsoft Azure and the Microsoft Defender Suite of tools.
  • Microsoft AZ-104, AZ-500, and SC-200 certifications, or other Microsoft Azure and Defender-related certifications.
  • Experience developing scripts in Python and PowerShell.
  • Advanced Certifications such as SANS GIAC/GCIA/GCIH, CISSP, CCNA, CCNP or CASP.
  • Experience in intelligence driven defence.
  • Experience with DOD accreditation.

Pay Range: $107,900.00 - $195,050.00

Skills

Required

Nice to have

  • DISA and DoD Networks
  • Microsoft SharePoint
  • Microsoft AZ-104
  • AZ-500
  • SC-200
  • SANS GIAC/GCIA/GCIH
  • CISSP
  • CCNA
  • CCNP
  • CASP

Ready to apply?

You apply with the employer directly. Their original posting is here: https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Chambersburg-PA/Countermeasures-Engineer_R-00194233-1

Apply on Leidos