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Security Engineer/Tester

Apex SystemsSeattle, WA🇺🇸United StatesPosted Sep 15, 2026

Quick Overview

Salary
€67/hr
Seniority
Mid Senior
Work mode
On Site
Location
Seattle, WA, United States
Posted
Yesterday
OAuthOWASPSAMLSSOHTTPHTTPSPKI

Job Description

Job#: 3050223

Job Description:
Security Tester

Location: Seattle, WA (Must be able to sits onsite 3 days per week.)

Length: 12+ month Assignment

Pay Range: $63 - $65/hour W2

Role Overview:

As a Security Engineer/Tester, you will perform authorized security testing on complex, large-scale, and critical applications. You will be part of the development team, working with developers to proactively identify security vulnerabilities. This role serves as a liaison between the information security and development teams, assisting in the understanding and resolution of reported security issues.

Key Responsibilities:
  • Perform authorized security testing on complex and critical applications.
  • Work within the development team to proactively identify security vulnerabilities (OWASP Top 10, SANS Top 25, CWE) early in the development cycle.
  • Act as a liaison between the InfoSec and development teams to communicate and facilitate the remediation of security issues.
  • Present findings to leadership and development teams to inform decisions on mitigations and controls.
  • Stay current with the changing threat landscape and new security vulnerabilities.
Required Qualifications:
  • 3+ years of experience in software development or testing with large-scale enterprise applications.
  • Primary skills in manual and automated software testing.
  • Deep understanding of web application technologies, web protocols (HTTP, HTTPS), and browser technologies.
  • In-depth domain understanding of application security, including Identity and Access Management (IAM) and various authentication technologies (passwords, biometrics, OTP, digital certificates & PKI, device authentication, FIDO U2F/Passkeys).
  • Proven expertise with security testing tools such as Fiddler, Burp, and static code analysis tools.
  • Deep understanding of application security vulnerabilities like OWASP Top 10, SANS Top 25, and CWE.
  • Bachelor's Degree in Computer Science or equivalent experience.
Preferred Qualifications:
  • Working experience with security technologies and standards like Single Sign-On (SSO) using SAML/OpenID and OAuth protocols.
  • Good understanding of cryptographic algorithms and standards (Symmetric/Asymmetric crypto, digital signatures, JWS/JWE tokens, HSMs).
  • Understanding of security vulnerabilities related to cloud environments.
  • Familiarity with mobile application security.
  • Understanding of Threat Modeling concepts and the Secure Development Life Cycle.
  • Recognized security certifications are an advantage.


Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.

Everforth Apex uses a virtual recruiter as part of the application process. Click for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at

Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.

Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at or . Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.

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