• Security Consultant, Application (Web, Mobile) Penetration Tester

    Job Locations US-WA-Seattle | US-WA-Bellevue | US-Remote | US-CO-Westminster
    Regular Full-Time
  • About Coalfire

    Coalfire is the cybersecurity advisor that helps private and public sector organizations avert threats, close gaps, and effectively manage risk. Our professionals are among the most talented in the industry, and each and every day, they strive to provide the unbiased assessments, advice, and innovative solutions that help our clients meet their specific challenges and build long-term strategies to protect their organizations. For nearly 20 years, we’ve been on the cutting-edge of one of the world’s most important industries – and we’re committed to making the world a safer place by solving our clients’ toughest security challenges.


    Coalfire LABS is composed of highly specialized security testers with a passion for enhancing system security postures.  Our team members actively participate in the information security community and have released toolsets, blog posts, and whitepapers. Our team members have presented at numerous industry conferences, including BlackHat, DefCon, ShmooCon, BlueHat, DerbyCon, 44CON, and numerous BSides, about offensive and defensive operations as well as the tools and capabilities we create and share.  Come join an amazing technical security team who makes a difference in the information security industry and consistently pushes the limit of offensive and defensive security capabilities. 


    We’re growing rapidly and are currently seeking an Application Consultant to support our Seattle, WA office.


    What you'll do

    • Conduct Web application penetration testing
    • Conduct API penetration testing
    • Conduct Mobile Application penetration testing on iOS and Android platforms
    • Conduct security assessments on a wide variety of technologies and implementations
    • Simulate sophisticated cyberattacks to identify vulnerabilities for clients worldwide
    • Conduct source code reviews for security vulnerabilities

    What you'll bring

    • 3-5 years’ experience in information security with a focus on web application penetration testing experience
    • Experience with API testing and Mobile Application testing
    • Familiarity with XML, SOAP, JSON and AJAX
    • Hands-on experience with two or more scripting languages such as Python, Powershell, bash, or Ruby
    • Familiarity with penetration testing tools and tool suites such as Burp Suite Pro, Acunetix, NetSparker, Kali Linux, etc.
    • Hands-on experience engaging clientele in consulting-related environments
    • An aptitude for technical writing, including assessment reports, presentations and operating procedures
    • Strong understanding of security principles, policies and industry best practices
    • Ability to travel up to 20%

    Bonus Points

    • An advanced degree in an IT-related field
    • Database administration, device configuration hardening and compliance
    • Experience with common web frameworks, for example, jQuery, Bootstrap, Django, etc.
    • Experience with common development languages, for example, VB.net, Java, C#, JavaScript, etc.
    • Familiarity with Open Source Security Testing Methodology Manual (OSSTMM), Open Web Application Security Project (OWASP), and National Institute of Standards and Technology (NIST) Special Publications
    • Working knowledge of defensive security techniques and technologies
    • OSCP/E, OSWE, GWAPT, GPEN, or GXPN certification(s)

    Why you'll want to join us

    Passionate problem-solvers who are hungry to learn, grow, and contribute. That’s what it takes to be a part of the Coalfire team. We work together to tackle the toughest cybersecurity challenges and help our clients become more secure and successful. We are trusted advisors who are committed to shaping our industry. At Coalfire, our people have the opportunity to expand their minds and skills, build meaningful relationships with the industry’s smartest minds, and have a direct impact on our company’s success. 


    Along with energetic culture and supportive environment, you’ll have the flexibility to balance your personal and work life and grow personally and professionally. We work hard, and we play hard – and the two often overlap. We host family-friendly events and happy hours along with professional meetups and informal networking sessions, and we’re active in our communities. Plus, we offer great benefits, including:


    • Health, dental, and vision insurance with an employer contribution
    • Flexible paid time off (employees are encouraged to spend four weeks away from the office each year)
    • A generous 401(k) plan
    • A corporate wellness program
    • Tuition reimbursement
    • A kitchen stocked with snacks, coffee, and tasty beverages

    Coalfire is an EEO employer.


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