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Senior Information System Security Engineer

Washington, DC

Job Description

Open Systems Technologies Corporation is seeking a Senior Information System Security Engineer to provide support for the FBI. Information System Security Engineer (ISSE) activities shall include at a minimum:

  • Identify information protection needs for an IS and Network Environment
  • Define IS and Network Environment security requirements in accordance with applicable cybersecurity requirements
  • Design security architectures for use within the IS and Network Environment
  • Design and develop cybersecurity-enabled products for use within an IS and Network Environment
  • Integrate and/or implement security with Cross Domain Solutions (CDS) for use within an IS and Network Environment
  • Develop and implement security designs for new or existing network system(s). Ensure that the design of hardware, operating systems, and software applications adequately address cybersecurity requirements for the IS and Network Environment
  • Design, develop, and implement network security measures that provide confidentiality, integrity, availability, authentication, and non-repudiation
  • Design, develop, and implement specific cybersecurity countermeasures for the IS and Network Environment
  • Develop interface specifications for the IS and Network Environment
  • Develop approaches to mitigate IS and Network Environment vulnerabilities and recommend changes to network or network system components as needed
  • Ensure that network system(s) designs support the incorporation of FBI directed cybersecurity vulnerability solutions

    Qualifications:

  • CLEARANCE: Top Secret required; SCI eligibility preferred
  • Familiarity with the use and operation of security tools including Tenable Nessus and/or Security Center, IBM Guardium, HP WeblInspect, Network Mapper (NMAP), and/or similar applications.
  • Hold at least one of the following certifications: One of the following certifications is required to meet the category/level ISSE-2 (DOD 8570) requirement for this position: CASP+ CE, CISSP (or Associate), CSSLP, CISSP-ISSAP, CISSP-ISSEP, or CCSP
  • Bachelor’s and advanced degree in Computer Science, Cybersecurity, or other cyber discipline is preferred; plus minimum 8 years’ experience, or equivalent education/experience; Doctorate plus 6 years; Master’s plus 6 years; Associates plus 10 years; or H.S./GED plus 14 years.
  • BENEFITS

    Our company OST has been operating since 1996 and have various contracts with Government agencies. We offer a comprehensive benefit package that includes 3 weeks paid time off, 2 weeks Holiday pay, medical/dental coverage, STD, LTD, Life Insurance, AD&D, 401k with up to 4% match, and end of year profit sharing paid out in 401k.

VEVRAA Federal Contractor.
We request Priority Protected Veteran & Disabled Referrals for all of our locations within the state.

PDN-a2b36777-6369-48c4-ae49-abd4fb2db95f

Open Systems Technologies Corporation is seeking a Senior Information System Security Engineer to provide support for the FBI. Information System Security Engineer (ISSE) activities shall include at a minimum:

  • Identify information protection needs for an IS and Network Environment
  • Define IS and Network Environment security requirements in accordance with applicable cybersecurity requirements
  • Design security architectures for use within the IS and Network Environment
  • Design and develop cybersecurity-enabled products for use within an IS and Network Environment
  • Integrate and/or implement security with Cross Domain Solutions (CDS) for use within an IS and Network Environment
  • Develop and implement security designs for new or existing network system(s). Ensure that the design of hardware, operating systems, and software applications adequately address cybersecurity requirements for the IS and Network Environment
  • Design, develop, and implement network security measures that provide confidentiality, integrity, availability, authentication, and non-repudiation
  • Design, develop, and implement specific cybersecurity countermeasures for the IS and Network Environment
  • Develop interface specifications for the IS and Network Environment
  • Develop approaches to mitigate IS and Network Environment vulnerabilities and recommend changes to network or network system components as needed
  • Ensure that network system(s) designs support the incorporation of FBI directed cybersecurity vulnerability solutions

    Qualifications:

  • CLEARANCE: Top Secret required; SCI eligibility preferred
  • Familiarity with the use and operation of security tools including Tenable Nessus and/or Security Center, IBM Guardium, HP WeblInspect, Network Mapper (NMAP), and/or similar applications.
  • Hold at least one of the following certifications: One of the following certifications is required to meet the category/level ISSE-2 (DOD 8570) requirement for this position: CASP+ CE, CISSP (or Associate), CSSLP, CISSP-ISSAP, CISSP-ISSEP, or CCSP
  • Bachelor’s and advanced degree in Computer Science, Cybersecurity, or other cyber discipline is preferred; plus minimum 8 years’ experience, or equivalent education/experience; Doctorate plus 6 years; Master’s plus 6 years; Associates plus 10 years; or H.S./GED plus 14 years.
  • BENEFITS

    Our company OST has been operating since 1996 and have various contracts with Government agencies. We offer a comprehensive benefit package that includes 3 weeks paid time off, 2 weeks Holiday pay, medical/dental coverage, STD, LTD, Life Insurance, AD&D, 401k with up to 4% match, and end of year profit sharing paid out in 401k.

VEVRAA Federal Contractor.
We request Priority Protected Veteran & Disabled Referrals for all of our locations within the state.

PDN-a2b36777-6369-48c4-ae49-abd4fb2db95f

About Open Systems Technologies Corporation

Open System Technologies Corporation believes in the power of experience and expertise. That is why we are certified in a broad spectrum of capabilities to better serve our diverse clientele with flawless execution and exceptional client relationships.

At OST, we are proud to have assembled an experienced team of driven professionals who strive to keep us meeting new heights of performance. 

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Open Systems Technologies Corporation
Senior Information System Security Engineer
Open Systems Technologies Corporation
Washington, DC
Sep 16, 2026
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