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From the employer's careers site First seen 27 Oct 2026 · Still live on 31 Oct 2026

Penetration Tester

Leidos Huntsville, AL On-site senior full-time

Salary

$87,100 - $157,450 per year

Apply on Leidos

Description

We are seeking a skilled Penetration Tester to join our team in Huntsville, AL. As a Penetration Tester, you will perform live penetration tests for customers, conduct deep-dive preparatory analysis for systems under test, recommend mitigation strategies for discovered vulnerabilities, and test at multiple stages of the system development/acquisition lifecycle.

Primary Responsibilities:

  • Perform live penetration tests for customers
  • Conduct deep-dive preparatory analysis for systems under test
  • Recommend specific mitigation strategies to customers for discovered vulnerabilities
  • Test at multiple stages of the system development/acquisition lifecycle
  • Develop red team tools for use in stand-alone and network-connected systems
  • Ensure survivability and resiliency of customer systems under test
  • Deliver development updates and after-action reports after each assessment

Required Qualifications:

  • Bachelor's degree in Cyber Security, Computer Science, Computer Engineering, Electrical Engineering, or related Technical Degree
  • 4-8 years of experience in penetration testing/red teams or related security field, or a master's degree in a related field with 2+ years of experience
  • Proficient with Linux (preferably Kali, Parrot, or similar distros) and Windows Operating systems
  • Experience with scripting languages such as bash, python, etc.
  • Hands-on experience performing penetration tests, vulnerability assessments, and security analysis on enterprise systems
  • Proven experience with web application penetration testing, including OWASP Top 10 vulnerabilities
  • Experience conducting cloud security assessments (AWS, Azure, GCP) and cloud-native penetration testing
  • Familiarity with API security testing (REST, SOAP, GraphQL) and authentication/authorization mechanisms
  • Strong understanding of TCP/IP network architecture, protocols, and network security concepts
  • Located in Huntsville, AL area or willing to relocate
  • US Citizen with ability to obtain TS/SCI security clearance

Preferred Qualifications:

  • Extensive experience with reconnaissance and scanning tools (Nmap, Nikto, Burp Suite, OWASP ZAP, etc.)
  • Extensive experience with exploitation frameworks and tools (Metasploit, Cobalt Strike, Empire, etc.)
  • Demonstrated ability to develop custom exploits and automation scripts using Python, Bash, PowerShell, or similar languages
  • Experience with cloud security tools and methodologies (ScoutSuite, Prowler, Pacu, etc.)
  • Prior Department of War (DoW) experience or work with government/defense sector clients
  • Completion of or active pursuit of industry certifications such as OSCP, GPEN, GWAPT, GCIH, GSEC, CPTS, CEH, or equivalent technical certifications
  • RF security experience or amateur (HAM) radio certification is a plus

Benefits:

  • Competitive benefits package including Paid Time Off, 11 paid Holidays, 401K with 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and more

Skills

Required

  • Linux
  • Windows
  • bash
  • python
  • penetration testing
  • vulnerability assessments
  • security analysis
  • web application penetration testing
  • cloud security assessments
  • API security testing
  • TCP/IP network architecture

Nice to have

  • Nmap
  • Nikto
  • Burp Suite
  • OWASP ZAP
  • Metasploit
  • Cobalt Strike
  • Empire
  • PowerShell
  • ScoutSuite
  • Prowler
  • Pacu
  • OSCP
  • GPEN
  • GWAPT
  • GCIH
  • GSEC
  • CPTS
  • CEH

Ready to apply?

You apply with the employer directly. Their original posting is here: https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Huntsville-AL/Penetration-Tester_R-00191122

Apply on Leidos