Full-Time

Senior Information Security Firewall Engineer

Prosidian Consulting

Prosidian Consulting

11-50 employees

Management and operations consulting firm

No salary listed

Washington, DC, USA + 1 more

More locations: Manassas, VA, USA

In Person

On-site role; periodic requirement to work at DC-area offices; primarily Manassas, VA with occasional DC visits.

Category
IT & Security (1)
Required Skills
Cryptography
Requirements
  • Bachelor’s degree a computer-related field plus 5 years of professional experience or equivalent work experience.
  • Demonstrated experience and advanced knowledge of security systems analysis, testing, and documentation;
  • Knowledge of virtual environments, network operating systems, mobile device environments, and data encryption methods;
  • Demonstrated expertise in communication protocols, network operating systems, servers, firewall implementation, Intrusion Prevention Systems (IPS) and Intrusion Detection and Prevention Systems (IDPS) Systems, and advanced malware detection systems.
  • Must be able to multi-task and work independently on moderate to complex assignments using independent professional discretion and judgment as well as transition quickly between projects with minimal supervision;
  • Ability to communicate effectively, both orally and in writing, with elected officials, senior staff, information systems professionals, and technical and non-technical users;
  • Unless otherwise stated, a minimum of a secret security clearance preferred;
  • Ability to maintain effective working relationships with colleagues, users, contractors, and vendors;
  • One or more of the following Certifications preferred (CISSP, GIAC, EnCE, CCE, CEH)
Responsibilities
  • Monitoring security systems including IDS and firewalls;
  • Monitoring mobile threat platforms;
  • Conducting analysis of active and potential virtual server problems, and providing recommendations for their resolution;
  • Review and revise security procedures and policies as needed;
  • Assist in the analysis of correlated events and their resolution;
  • Provide general security-relevant services required to support INFOSEC;
  • On-site support to The Federal Agency INFOSEC Directorate Monday-Friday excluding Federal holidays, during an eight-hour shift;
  • Travel on an as-needed basis; travel time should be less than 4% of the period of performance;
Desired Qualifications
  • The ideal candidate capability requirements/experience: Bachelor’s degree a computer-related field plus 5 years of professional experience or equivalent work experience.
  • Demonstrated experience and advanced knowledge of security systems analysis, testing, and documentation.
  • Knowledge of virtual environments, network operating systems, mobile device environments, and data encryption methods.
  • Demonstrated expertise in communication protocols, network operating systems, servers, firewall implementation, Intrusion Prevention Systems (IPS) and Intrusion Detection and Prevention Systems (IDPS) Systems, and advanced malware detection systems.
  • Must be able to multi-task and work independently on moderate to complex assignments using independent professional discretion and judgment as well as transition quickly between projects with minimal supervision.
  • Ability to communicate effectively, both orally and in writing, with elected officials, senior staff, information systems professionals, and technical and non-technical users.
  • Unless otherwise stated, a minimum of a secret security clearance preferred.
  • Ability to maintain effective working relationships with colleagues, users, contractors, and vendors.
  • One or more of the following Certifications preferred (CISSP, GIAC, EnCE, CCE, CEH)

ProSidian Consulting provides management and operations consulting to private companies, Fortune 1000 enterprises, and government agencies. It uses industry-aligned services across six practice areas: Risk Management, Energy & Sustainability, Compliance, Business Process, IT Effectiveness, and Human Capital, delivered by multidisciplinary teams. The firm connects strategy to execution with On-Demand Resources and targets drivers of economic profit—growth, margin, and efficiency—across assets, processes, policies, and people. Its goal is to help leaders design and execute operations that increase value for customers and improve return on invested capital.

Company Size

11-50

Company Stage

N/A

Total Funding

N/A

Headquarters

Charlotte, North Carolina

Founded

2008

Simplify Jobs

Simplify's Take

What believers are saying

  • Remote-first model attracts talent nationwide, cuts office overhead costs.
  • Energy & Sustainability practice meets tightening ESG mandates for Fortune 1000.
  • Human Capital solutions address 2025-2026 retention, skills gaps challenges.

What critics are saying

  • Deloitte poaches Big 4 alumni, erodes 190-professional talent pool in 6-12 months.
  • Stagnant website since 2020 loses clients to Booz Allen in 3-6 months.
  • No alliances post-2013 isolates energy bids against EY networks in 6-12 months.

What makes Prosidian Consulting unique

  • On-demand model deploys experienced-only Big 4 alumni for rapid execution.
  • Multidisciplinary teams span Risk Management, Energy & Sustainability, Compliance.
  • Structured approach links strategy to execution across assets, processes, people.

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Benefits

Remote Work Options