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Penetration Tester Jobs in Riverside, CA (NOW HIRING)

Masimo

Sr Engineer, Software Automation

Irvine, CA · On-site

$100K - $130K/yr

Experience with performance, load, or penetration testing * Background in Agile/Scrum development environments Education: Bachelor's degree in Computer Science, Software Engineering, or related field.

FieldAI

Infrastructure Security Engineer

Irvine, CA · On-site

$151K/yr

... penetration testing, or adversarial infrastructure assessments • Experience supporting operationally critical or mission-critical production environments Company : FieldAI is building general robot ...

ClifyX

Cloud Security Architect

Irvine, CA · On-site

$69.50 - $92.25/hr

... Lead penetration testing cycles and coordinate mitigation activities. • Produce security HLD/LLD, risk assessments, and operational security runbooks. Qualifications : Required : • Strong ...

Diality

IT Manager

Irvine, CA

$130K - $149K/yr

Coordinate penetration testing, risk assessments, and security audits. * Support compliance with FDA Quality System Regulations (QSR), ISO 13485, HIPAA when applicable, NIST Cybersecurity Framework ...

Veritone

VP, Information Security and Compliance

Irvine, CA · On-site

$135K - $181K/yr

Direct vulnerability scanning, penetration testing, intrusion detection, and threat intelligence operations to proactively address emerging vector threats. * Incident Management: Oversee breach ...

FieldAI

Infrastructure Security Engineer

Irvine, CA

$153K/yr

Experience with offensive security, penetration testing, or adversarial infrastructure assessments * Experience supporting operationally critical or mission-critical production environments Our ...

Diality Inc

IT Manager

Irvine, CA · On-site

$130K - $149K/yr

Coordinate penetration testing, risk assessments, and security audits. * Support compliance with FDA Quality System Regulations (QSR), ISO 13485, HIPAA when applicable, NIST Cybersecurity Framework ...

FieldAI

Infrastructure Security Engineer

Irvine, CA · On-site

$153K/yr

Experience with offensive security, penetration testing, or adversarial infrastructure assessments * Experience supporting operationally critical or mission-critical production environments Our ...

FieldAI

Infrastructure Security Engineer

Irvine, CA

$153K/yr

Experience with offensive security, penetration testing, or adversarial infrastructure assessments * Experience supporting operationally critical or mission-critical production environments Our ...

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All JobsPenetration Tester JobsPenetration Tester Jobs in Riverside, CA

Penetration Tester information

See Riverside, CA salary details

$23.5K

$125.1K

$175.8K

How much do penetration tester jobs pay per year?

As of Aug 8, 2026, the average yearly pay for penetration tester in Riverside, CA is $125,082.00, according to ZipRecruiter salary data. Most workers in this role earn between $100,200.00 and $147,100.00 per year, depending on experience, location, and employer.

What does a penetration tester do?

As a penetration tester, your job is to test the security of a network by attempting to hack into an application, system, or computer. Penetration testing can occur in a variety of ways, from physical interaction with the machine you’re trying to hack to attacks sent over the web. Aside from helping clients test for vulnerabilities, your job also includes explaining how you got in and providing recommendations for stopping others from repeating your actions. In some cases, you may be asked to help investigate cyber crimes or explain methods and techniques in criminal trials. Success in this job is often measured by how many security holes you find and close.

What are some common challenges penetration testers face during client engagements?

Penetration testers often encounter challenges such as limited access to information, strict time constraints, and navigating complex or legacy systems. Additionally, they must balance thorough testing with minimizing disruptions to client operations. Effective communication is crucial, as testers need to clearly document findings and explain technical vulnerabilities to non-technical stakeholders to ensure remediation efforts are understood and prioritized.

What is a penetration tester?

Penetration Testers, also known as ethical hackers, are cybersecurity professionals who simulate cyberattacks on computer systems, networks, or applications to identify and address security vulnerabilities. Their work helps organizations discover weak points before malicious hackers can exploit them. Penetration testers use a variety of tools and techniques to mimic real-world threats and provide detailed reports with recommendations for improving security. They play a crucial role in maintaining the safety and integrity of an organization’s digital assets.

What is the difference between Penetration Tester vs Vulnerability Analyst?

AspectPenetration TesterVulnerability Analyst
CertificationsOSCP, CEH, GPENCVE, CISSP, GIAC
Work EnvironmentHands-on testing, simulated attacksVulnerability scanning, risk assessment
Employer & IndustryCybersecurity firms, IT departmentsSecurity teams, compliance agencies
Search & Comparison IntentUnderstanding testing roles, skillsIdentifying vulnerabilities, analysis methods

While both roles focus on cybersecurity, a Penetration Tester actively exploits vulnerabilities to test security defenses, whereas a Vulnerability Analyst identifies and assesses weaknesses without exploiting them. Penetration Testers typically perform simulated attacks, requiring hands-on skills and certifications like OSCP or CEH. Vulnerability Analysts focus on scanning and reporting vulnerabilities, often working with tools like Nessus or Qualys. Both roles are essential for a comprehensive security strategy but differ in approach and responsibilities.

What are the key skills and qualifications needed to thrive as a penetration tester, and why are they important?

To thrive as a Penetration Tester, you need a solid understanding of networking, operating systems, cybersecurity principles, and typically hold certifications like OSCP or CEH. Proficiency with tools such as Metasploit, Burp Suite, Nmap, and Wireshark is crucial for identifying and exploiting vulnerabilities. Strong analytical thinking, attention to detail, and clear communication skills help Penetration Testers effectively document findings and convey risks to clients. These skills and qualities are vital for uncovering security weaknesses and helping organizations strengthen their defenses against cyber threats.
More about Penetration Tester jobs
What are the most commonly searched types of Penetration Tester jobs in Riverside, CA? The most popular types of Penetration Tester jobs in Riverside, CA are:
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What job categories do people searching Penetration Tester jobs in Riverside, CA look for? The top searched job categories for Penetration Tester jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Penetration Tester jobs? Cities near Riverside, CA with the most Penetration Tester job openings:
Penetration Tester jobs near you
Infographic showing various Penetration Tester job openings in Riverside, CA as of August 2026, with employment types broken down into 78% Full Time, and 22% Part Time. Highlights an 84% In-person, and 16% Remote job distribution, with an average salary of $125,082 per year, or $60.1 per hour.

Sr Engineer, Software Automation

Masimo

Irvine, CA • On-site

$100K - $130K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 18 days ago

Job description


Job Summary:
The Sr Engineer, Software Automation is responsible for designing, developing, and maintaining automation frameworks to ensure the quality, security, and performance of on-premises server-client applications, mobile platforms (Android and iOS), and cloud-based services. This role requires expertise in test automation, networking, system-level validation, and secure software practices. The successful candidate will collaborate cross-functionally to validate complex, interconnected systems and drive continuous improvement in testing and product quality.
Please note this is an onsite position at our Irvine, CA. office.
Duties & Responsibilities:
  • Design, develop, and maintain automated test suites for on-premises applications, mobile platforms, and cloud services/APIs.
  • Execute and analyze manual and automated test cases; troubleshoot issues using test results and logs.
  • Validate system behavior in secure networking environments, ensuring alignment with cybersecurity best practices.
  • Collaborate with engineering, QA, DevOps, and security teams to ensure comprehensive coverage of functional, performance, and security testing.
  • Build and manage complex test environments including physical infrastructure, mobile devices, and cloud/virtualized components.
  • Identify and report potential security vulnerabilities in partnership with internal security and compliance teams.
  • Contribute to CI/CD pipelines and integrate automation into development workflows.
  • Document test strategies, execution results, and recommendations for quality improvements.
  • Mentor junior engineers and promote a culture of quality, security, and continuous learning.

Minimum Qualifications:
  • 5+ years of experience in software engineering or test automation
  • Proficiency in Java and Python for automation scripting
  • Strong knowledge of networking protocols and systems (e.g., TCP/IP, DNS, DHCP, HTTP/S)
  • Experience with mobile testing tools (e.g., Appium, Espresso, XCUITest)
  • Hands-on experience testing cloud applications and APIs (AWS, Azure, GCP, or private cloud)
  • Familiarity with cybersecurity principles and secure coding/testing practices
  • Experience working in secure network or compliance-driven environments
  • Strong analytical, problem-solving, and communication skills

Preferred Qualifications:
  • Master's degree in Computer Science, Engineering, Cybersecurity, or related field
  • Experience with security testing tools and practices (e.g., static/dynamic analysis, vulnerability scanning, OWASP Top 10)
  • Knowledge of authentication, authorization, encryption, and secure communications
  • Hands-on experience with API security testing (e.g., Postman, REST Assured, OWASP ZAP)
  • Familiarity with DevSecOps practices and integrating security into CI/CD pipelines
  • Experience with performance, load, or penetration testing
  • Background in Agile/Scrum development environments

Education: Bachelor's degree in Computer Science, Software Engineering, or related field.
Compensation: The anticipated range for this position is $100,000 - $130,000. Actual placement within the range is dependent on multiple factors, including but not limited to skills, education, and experience. This position also qualifies for up to 10% annual bonus based on Company, department, and individual performance. Masimo offers benefits such as Medical, Dental, Vision, Life/AD&D, Disability Insurance, 401(k), Vacation, Sick, Holiday, Paid Maternity Leave, Flexible Spending Accounts, voluntary Accident, Critical Illness, Hospital, Long-Term Care, Employee Assistance Program, Pet Insurance, on-site Wellness Clinic, Fitness Center, Café. All benefits are subject to eligibility requirements.
Physical requirements/Work Environment:
This position primarily works in an office environment. It requires frequent sitting, standing and walking. Daily use of a computer and other computing and digital devices is required. May stand for extended periods when facilitating meetings or walking in the facilities.
The physical demands of the position described herein are essential functions of the job and employees must be able to successfully perform these tasks for extended periods. Reasonable accommodation may be made for those individuals with disabilities to perform the essential functions of the job described.
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About Masimo

Sourced by ZipRecruiter

Industry

Medical equipment and supplies manufacturing

Company size

1,001 - 5,000 Employees

Headquarters location

Irvine, CA, US

Year founded

1989

Social media

Twitter

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