Talent.com
Senior Web App Pen Tester (San Diego or Irvine)
Senior Web App Pen Tester (San Diego or Irvine)CoStar Group • CA San Diego, US
Senior Web App Pen Tester (San Diego or Irvine)

Senior Web App Pen Tester (San Diego or Irvine)

CoStar Group • CA San Diego, US
[job_card.30_days_ago]
[job_preview.job_type]
  • [job_card.full_time]
[job_card.job_description]

Responsibilities

  • Conduct penetration tests on web applications and underlying infrastructure for vulnerabilities using both manual and automated techniques
  • Demonstrate risk of detected issues to both technical and non-technical audiences
  • Work with the software and product teams to help ensure applications are designed and implemented securely during the SDLC
  • Consume a variety of application security tools (DAST, SAST, SCA, Credential Scanning, IAC scanning) to secure web applications during development and production run-time
  • Utilize sustainable methods to automate finding feedback to generate developer work items and trigger re-scan when associated work items are closed
  • Recommend code changes to eliminate vulnerabilities
  • Automate security testing at various stages within the CI / CD pipeline

Basic Qualifications

  • Bachelor’s Degree required from an accredited, not for profit university or college (preferably in Computer Science / Cybersecurity)
  • A track record of commitment to prior employers
  • 3+ years total experience in a technical role with at least 1 year of professional experience penetration testing
  • Experience with web application penetration testing, identifying and exploiting attack chains to evaluate the severity of vulnerabilities within a web application
  • Experience writing comprehensive reports that clearly demonstrate the risk of vulnerabilities to developers and technical leadership
  • Experience with defense-in-depth strategies to help mitigate existing risk within applications
  • Experience with common programming language : C# (preferred), Java, C / C++, Python, or Go
  • Scripting / programming skills - Python, PowerShell, GoLang, Perl, JavaScript, .NET, API Integration
  • Security tooling automation in CI / CD pipelines and IDE interfaces including Static Application Security Testing (SAST) and Static Application Analysis (SCA) solutions such as Veracode, CheckMarx, AppScan, X-Ray, Synopsys, or Snyk
  • Dynamic application security testing (DAST) through Metasploit, Burp Suite, OWASP ZAP, Acunetix, etc.
  • Industry relevant professional certifications such as : Offensive Security Web Assessor (OSWA) / Expert (OSWE)Offensive Security Certified Professional (OSCP) / Experienced (OSEP)Hack the Box Bug Bounty Hunter (CBBH) / Web Exploitation Expert (CWEE)Hack the Box Penetration Testing Specialist (CPTS) / AD Pentesting Expert (CAPE)INE Security Web Application Penetration Tester eXtreme (eWPTX)
  • Those certifications can be substituted with considerable experience in CTFs, impressive CVEs, or impressive bug bounty reports.
  • Preferred Qualifications and Skills

  • In-depth understanding of various assessment tools
  • Knowledge of infrastructure operations across databases, network, and system administration
  • Ability to communicate with different levels of leadership conveying risk and driving urgency for risk remediation
  • Experience coordinating with application teams to drive security by design principles
  • Ability to mentor and train team members to prioritize security efforts effectively
  • A self-starter who can advance the application security program and follow-through ideas to completion
  • Passionate about cyber security keeping up with latest trends in the threat landscape
  • Hands-on experience implementing security tools into CI / CD pipelines
  • Experience testing modern applications in cloud-native tech stacks
  • Experience with mobile application penetration testing
  • What’s in it for You

    When you join CoStar Group, you’ll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed.

    We offer you generous compensation and performance-based incentives. CoStar Group also invests in your professional and academic growth with internal training, and tuition reimbursement.

    Our benefits package includes (but is not limited to) :

  • Comprehensive healthcare coverage : Medical / Vision / Dental / Prescription Drug
  • Life, legal, and supplementary insurance
  • Virtual and in person mental health counseling services for individuals and family
  • Commuter and parking benefits
  • 401(K) retirement plan with matching contributions
  • Employee stock purchase plan
  • Paid time off
  • Tuition reimbursement
  • On-site fitness center and / or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes
  • Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups
  • Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks
  • This position offers a base salary range of 114,200 - 203,500 based on relevant skills and experience and includes a generous benefits plan.

    [job_alerts.create_a_job]

    Senior • CA San Diego, US

    [internal_linking.related_jobs]
    Senior Test Engineer

    Senior Test Engineer

    ASML US, LLC • San Diego, CA, United States
    [job_card.full_time]
    ASML US brings together the most creative minds in science and technology to develop lithography machines that are key to producing faster, cheaper, more energy-efficient microchips.We design, deve...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Test Engineer (San Diego)

    Test Engineer (San Diego)

    Russell Tobin • San Diego, CA, US
    [job_card.part_time]
    Pay Range : $50 / hr-$56 / hr on W2 (DOE).Essential Duties and Responsibilities : .Maintain R&D manufacturing equipment, coordinating preventative maintenance and calibrations. Design and iterate equipment...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Senior Developer Applications - API

    Senior Developer Applications - API

    ImmunityBio • San Diego, CA, United States
    [job_card.full_time]
    NASDAQ : IBRX) is a commercial-stage biotechnology company developing cell and immunotherapy products that are designed to help strengthen each patient's natural immune system, potentially enabling ...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Remote Product Tester - $25-45 per hour

    Remote Product Tester - $25-45 per hour

    Online Consumer Panels America • San Marcos, California, US
    [filters.remote]
    [job_card.part_time] +1
    Product Testers are wanted to work from home nationwide in the US to fulfill upcoming contracts with national and international companies. We guarantee 15-25 hours per week with an hourly pay of bet...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Online Product Tester

    Online Product Tester

    Online Consumer Panels America • Escondido, California, US
    [job_card.part_time] +1
    Product Testers are wanted to work from home nationwide in the US to fulfill upcoming contracts with national and international companies. We guarantee 15-25 hours per week with an hourly pay of bet...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Software Test Engineer On-site - San Diego, California

    Senior Software Test Engineer On-site - San Diego, California

    Ouraring Inc • San Diego, CA, United States
    [job_card.full_time]
    Our mission at Oura is to empower every person to own their inner potential.Our award-winning products help our global community gain a deeper knowledge of their readiness, activity, and sleep qual...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Paid Product Tester

    Paid Product Tester

    Product Review Jobs • Rancho San Diego, CA, US
    [job_card.full_time]
    Compensation : Varies per assignment.Location : Remote (USA) Company : ProductReviewJobs Thank you for your interest in becoming a Paid Product Tester. This opportunity is for completing market researc...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Senior Software Test Engineer

    Senior Software Test Engineer

    The Carrera Agency • San Diego, CA, United States
    [job_card.temporary]
    January 5 – May 5, 2026 (5 month contract).Starting at $58 / hr (W2 only, no C2C) — higher rates possible based on experience / skillset. Lead testing efforts for advanced manufacturing and automation s...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Test Engineer

    Test Engineer

    Russell Tobin • San Diego, CA, United States
    [job_card.full_time]
    Pay Range : $50 / hr-$56 / hr on W2 (DOE).Essential Duties and Responsibilities : .Maintain R&D manufacturing equipment, coordinating preventative maintenance and calibrations. Design and iterate equipment...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Sr. Software Architect II, Test Automation (Mobile / Cloud)

    Sr. Software Architect II, Test Automation (Mobile / Cloud)

    Tandem Diabetes Care • San Diego, CA, United States
    [job_card.full_time]
    Tandem Diabetes Care creates new possibilities for people living with diabetes, their loved ones, and their healthcare providers through a positively different experience.We'd love for you to team ...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Software Test Engineer

    Senior Software Test Engineer

    Eliassen Group • San Diego, CA, United States
    [job_card.temporary]
    Our client, a leader in biotechnology, has an excellent opportunity for an Senior Software Test Engineer to work on a 6-month contract opportunity. Work will be a hybrid on-site / remote schedule in S...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Remote Product Tester – $45 / hr + Free Products – Start Now!

    Remote Product Tester – $45 / hr + Free Products – Start Now!

    OCPA • Elfin Forest, California, us
    [filters.remote]
    [job_card.part_time] +1
    Product Testers are wanted to work from home nationwide in the US to fulfill upcoming contracts with national and international companies. We guarantee 15-25 hours per week with an hourly pay of bet...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Testing Specialist - 137498

    Testing Specialist - 137498

    UC San Diego • San Diego, CA, United States
    [job_card.full_time]
    Gilman Drive, San Diego, CA 92093, United States .Filing Deadline : Fri 12 / 19 / 2025.UC San Diego values and welcomes people from all backgrounds. If you are interested in being part of ou...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Test Engineer (San Diego)

    Test Engineer (San Diego)

    Trident Consulting • San Diego, CA, US
    [job_card.part_time]
    We are seeking a Test Engineer II to support Googles test engineering team.The engineer will be responsible for designing test plans, authoring test cases, setting up test environments, executing m...[show_more]
    [last_updated.last_updated_variable_hours] • [promoted]
    Posting Owner Test Job

    Posting Owner Test Job

    Lever Demo - IS Opportunities • San Diego, California, United States, 92101
    [job_card.full_time]
    PLEASE READ : these jobs are testing jobs of Lever's testing environment - please do not apply for this job.Lever was founded ten years ago to tackle the most strategic challenge that companies face...[show_more]
    [last_updated.last_updated_30]
    Senior Software Engineer, Streaming Media

    Senior Software Engineer, Streaming Media

    Apple • San Diego, CA, United States
    [job_card.full_time]
    Senior Software Engineer, Streaming Media.Do you want to make an impact on how millions of people around the world experience streaming content using their Apple devices? If you love statistics, ma...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Software Test Engineer

    Senior Software Test Engineer

    CARERRA AGENCY • San Diego, CA, United States
    [job_card.full_time]
    Software Verification, Test Cases, Manual Testing, UI Automation, Selenium, Git, Continuous Integration and Continuous Delivery (CI / CD), Defect Tracking, Jira, SQL. This is an excellent opportunity ...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Test Engineer (San Diego)

    Test Engineer (San Diego)

    ESP Enterprises Inc. • San Diego, CA, US
    [job_card.part_time]
    Support Client's FENX testing and installation effort,.Execute pre-built TestRail test cases and validate software / hardware integration. Perform device configuration, firmware loading, and onsite ha...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]