Find the Best Penetration Testing Jobs

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Check out a sample of the 259 Penetration Testing jobs posted on Upwork

WordPress Security Cleanup Specialist

Fixed-price ‐ Posted 5 days ago
$30
Fixed-price
Intermediate
Experience level

We are seeking a highly skilled and experienced WordPress security expert to assist in locking down our admin login and protecting our…

Penetration TestingVulnerability AssessmentSecurity AnalysisPHPVirus RemovalInternet SecurityWordPress
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WordPress Security Expert Needed

Hourly ‐ Posted 4 days ago
Less than 30 hrs/week
Hours needed
Less than 1 month
Duration
Expert
Experience level

We are seeking an expert to address 'critical error' issues on several WordPress sites due to php version updates. One of the sites may…

Penetration TestingHTMLPHPWordPress
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Certified Pentester Needed

Hourly ‐ Posted 4 days ago
Less than 30 hrs/week
Hours needed
1 to 3 months
Duration
Expert
Experience level

We are seeking a certified and experienced pentester with exceptional technical, communication, and written skills. The ideal candidate…

Penetration TestingVulnerability AssessmentPenetration Testing Jobs
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App Robustness and Security Check

Hourly ‐ Posted 4 days ago
Less than 30 hrs/week
Hours needed
Less than 1 month
Duration
Expert
Experience level

I need someone to finesse the code for a parenting webapp I have vibecoded in Base44. The task involves identifying vulnerabilities and…

Penetration TestingVulnerability AssessmentPenetration Testing JobsInternet SecuritySecurity Analysis
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Less than 30 hrs/week
Hours needed
1 to 3 months
Duration
Intermediate
Experience level

We are seeking an independent security professional or company to conduct a black-box web application penetration test. The test will i…

Penetration TestingPenetration Testing JobsPHPSoftware TestingFunctional TestingWeb Testing
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Security Engineer for Microsoft Defender X

Hourly ‐ Posted 5 days ago
Less than 30 hrs/week
Hours needed
1 to 3 months
Duration
Intermediate
Experience level

Seeking a security engineer or analyst with experience in Microsoft Defender X and a background in information security and cybersecuri…

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Security Audit for Web App

Hourly ‐ Posted 4 days ago
Less than 30 hrs/week
Hours needed
Less than 1 month
Duration
Intermediate
Experience level

I need someone to do a security audit. The scope covers ten items: Auth/authorization on coach_email, SQL Injection sweep, rate limitin…

Penetration TestingWeb TestingSecurity AnalysisInternet SecurityPenetration Testing Jobs
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Not sure
Hours needed
1 to 3 months
Duration
Intermediate
Experience level

Network Router & Mesh System Testing / QA EngineerNetwork Router & Mesh System Testing / QA Engineer Project Description: We are looki…

Penetration TestingMobile App TestingSoftware TestingNetwork EngineeringBug ReportsVPNTCP/IPFunctional Testing
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$1,000
Fixed-price
Intermediate
Experience level

Project Overview I am the founder of BridgeOpsOne, an operational communications platform designed for NOC, data center, and incident…

Penetration TestingWeb Application SecurityApplication SecurityAPIVulnerability AssessmentNode.jsPenetration Testing Jobs
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Enhance CRM Security Architecture

Hourly ‐ Posted 4 days ago
Less than 30 hrs/week
Hours needed
1 to 3 months
Duration
Intermediate
Experience level

I am looking for an experienced security specialist to review and enhance the security, encryption, and isolation mechanisms of my CRM…

Penetration TestingCloud Security FrameworkEncryptionJavaScriptAPIPenetration Testing Jobs
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How to Become a Penetration Tester

Organizations have the evolving task of securing complex IT environments from cyber-attacks whilst delivering their business objectives. The threat to key systems is ever-increasing, therefore, strong cybersecurity has become critical in our digital age. Nearly all sorts of digital environments—from digital banking to government applications—are vulnerable to security issues.

Penetration testers help companies discover and address security vulnerabilities that endanger their digital assets. Continue reading to learn more about what a penetration tester does, what skills you need to become a professional penetration tester, and whether you need a degree to excel in this career path.

What does a Penetration Tester do?

A penetration tester or pentester is an individual who evaluates the security of networks or systems and detects flaws. As a pentester, you’ll begin by conducting reconnaissance on your client’s systems and searching for any potential vulnerabilities (vulnerability assessment). Then, you’ll try to infiltrate the systems by exploiting detected vulnerabilities and ultimately, gain access to critical assets. Once a pentester has completed identifying false positives generated by scanners or tools, they are responsible for presenting comprehensive reporting and providing guidance on security measures to the stakeholders.

Depending on the case, pentesters may be required to collaborate with a variety of internal stakeholders, such as security consultants and information security analysts to deliver high-quality penetration tests.

What skills do I need to become a Penetration Tester?

Penetration testers should have solid technical skills and an in-depth understanding of security systems to test them for vulnerabilities. Below are some of the skills that a typical penetration tester job requires:

  • Comprehensive understanding of the HTTP protocol, system development lifecycle (SDLC), and web programming for multi-tier web applications and web services
  • Intermediate knowledge of cryptography, application security frameworks, and operating systems (Windows, macOS, Linux)
  • Experience with network security and network protocols, such as TCP/IP, IP/SEC, SMTP, DNS, etc., and network equipment, such as switches and routers
  • Fundamental knowledge of security protocols, scripting (Bash/PowerShell), and programming languages (Python/C/C++/Java)
  • Ability to think creatively and strategically to penetrate security systems
  • Strong experience and understanding of intelligence processes, analytical methods, the intelligence cycle, intelligence collection plans, source, and information evaluation
  • Experience dealing with post-incident analysis, remediation, and process improvement
  • Knowledge of perimeter security solutions, like Firewall, IDS, IPS, UTM, WAFs, and security analysis tools is an asset
  • Soft skills, including proven problem-solving and communication skills

What are the core Penetration Tester job responsibilities?

The everyday job responsibilities and duties of a penetration tester include:

  • Conduct web application, API, mobile, and network penetration testing within the designated scope and rules of engagement
  • Support research and innovation activities for intrusion detection and vulnerability scanning
  • Use industry standard and proprietary software to conduct penetration testing, including Metasploit, Burp Suite, and WebInspect
  • Test web services using manual in-depth testing methodologies and tools, including Kali Linux, Core Impact, Wireshark, Metasploit, NMAP, etc.
  • Developing testing plans to successfully conduct application testing, infrastructure testing, scenario-based testing, process testing, and social engineering
  • Perform advanced penetration tests (infrastructure, web/mobile applications) without supervision, lead Red Teaming engagements, own and run the key client and large-scale engagements
  • Conduct elevated risk and sensitive ethical hacks of internally and externally hosted applications according to scope
  • Execute structured attacks on cyber-physical systems within a white-hat laboratory
  • Coordinate and execute system/network level pen tests and ethical hacking exercises
  • Participate in incident response teams where appropriate and provide operational cyber intelligence support during ongoing incidents
  • Analyze reports to understand threat campaign(s) techniques, and lateral movements and extract indicators of compromise (IOCs)

Should I get a Penetration Tester degree or certification?

Earning a degree or a professional certification can be advantageous and help you stand out as a penetration tester on Upwork. You may consider the education and training options below:

  • Bachelor’s degree in computer science, computer networks, cyber security, information security, and information technology or another related technical discipline
  • Certifications such as GIAC Web Application Penetration Testing (GWAPT), Offensive Security Certified Professional (OSCP), CompTIA PenTest+, or Certified Ethical Hacker (CEH)

Jumpstart your freelance Penetration Tester career on Upwork and start searching for your first job. Excited to learn more about Penetration Tester jobs on Upwork? Check out these additional resources:

Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this section. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyse and determine the tools or services that would best fit their specific needs and situation.

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