Web Application Security Penetration Tester

Web Application Penetration TesterLocation: Richardson, TX (Onsite - 5 days/week)Employment Type: 6-Month Contract-to-HireIndustry: Banking / Financial ServicesTop Skills (Must-Have)Hands-on web application and API penetration testing experienceStrong Burp Suite experience for manual testing and exploitationDeep understanding of OWASP Top 10 and vulnerability mappingExperience identifying, exploiting, and validating application security flawsAbility to develop and present proof-of-concept (POC) findings to technical and non-technical stakeholdersClear communication skills with developers, architects, and leadershipGeneral Job DescriptionWe are seeking a Web Application Penetration Tester to join a banking client's in-house application security team. This role focuses on manual, hands-on penetration testing of web applications and APIs to identify security vulnerabilities throughout the secure software development lifecycle (SDLC).You will serve as a subject matter expert in web, API, and cloud application security, working closely with development and architecture teams to proactively identify risk, demonstrate exploitability, and influence secure software design decisions. This is a fully onsite, contract-to-hire position based in Richardson, Texas.Key ResponsibilitiesConduct manual application security penetration tests against web applications and APIsIdentify and exploit vulnerabilities in application design and implementationMap findings to OWASP Top 10 and clearly articulate riskDevelop clear proof-of-concept (POC) demonstrations for development teams and leadershipReview technical architecture and design documentation to ensure security controls are incorporated earlyProvide guidance on secure application architecture standards and design patternsPartner with application and security SMEs to support secure development practicesCommunicate application security concepts effectively across multiple organizational levelsContribute to a culture of secure-by-design software developmentAdditional Skills (Nice To Have)Experience testing REST APIs, authentication flows, authorization models, and token-based securityFamiliarity with cloud-hosted application risksExposure to CI/CD security tooling (SAST, DAST, SCA)Experience in regulated or financial services environmentsSecurity certifications such as OSCP, OSWE, GWAPT, GPEN, or CEHAbility to review and influence application security controls before code is deployedBusiness DriversThis role supports a proactive application security program within a banking environment, where early identification and exploitation of vulnerabilities helps reduce downstream risk and improve overall security posture. The team leverages modern tooling and emerging technologies, including AI-driven initiatives, to strengthen detection capabilities and better support secure application development.You will play a key role in directly improving the security of customer-facing and internal systems by working closely with development teams and providing actionable, real-world security insights.Job Type & LocationThis is a Contract to Hire position based out of Richardson, TX.Pay And BenefitsThe pay range for this position is $80.00 - $80.00/hr.Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:Medical, dental & visionCritical Illness, Accident, and Hospital401(k) Retirement Plan - Pre-tax and Roth post-tax contributions availableLife Insurance (Voluntary Life & AD&D for the employee and dependents)Short and long-term disabilityHealth Spending Account (HSA)Transportation benefitsEmployee Assistance ProgramTime Off/Leave (PTO, Vacation or Sick Leave)Workplace TypeThis is a fully onsite position in Richardson,TX.Application DeadlineThis position is anticipated to close on May 26, 2026.About TEKsystemsWe're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.About TEKsystems And TEKsystems Global ServicesWe're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.