At Bishop Fox, security isn't just a job - it's our passion. As leaders in continuous offensive security and penetration testing, we deliver world-class customer experiences. Trusted by over a quarter of the Fortune 100, half of the Fortune 10, and top global media companies, we help safeguard digital landscapes. Our Cosmos platform, honored as Best Emerging Technology by SC Media, exemplifies our commitment to innovation.   

Joining Bishop Fox means collaborating with a curious and dedicated team. You'll tackle complex challenges for some of the world's most recognized organizations, securing their networks against real-world threats. With nearly 20 years of industry contributions - including 16 open-source tools and 50 security advisories published in the past five years - we're committed to making the digital world safer.    

Given our exceptional growth, we are expanding and hiring a Pen Tester to join us on this exciting journey. We’re looking for a talented, experienced professional hacker to help us secure some of the world’s most complex software and sophisticated technologies. You’ll be working alongside our US and internationally-based teams supporting clients across multiple industries.                          

Who Are You and What You’ll Do  

You’re a cybersecurity consultant with a strong offensive security mindset and a passion for understanding how modern applications, cloud platforms, APIs, and emerging technologies operate at a deep technical level. You enjoy uncovering security weaknesses, thinking creatively about attack paths, and helping organizations solve complex security challenges through practical, risk-focused assessments. 

At Bishop Fox, you’ll work on a wide variety of security engagements including Cloud Security Assessments, Mobile Application Security Testing, Hybrid Application Assessments (HAA), and AI/LLM Security Assessments. You’ll evaluate modern applications and distributed systems across cloud-native, mobile, backend, and AI-enabled environments. 

Your responsibilities will include performing hands-on security testing, analyzing application behavior, reviewing source code, identifying realistic exploitation scenarios, and validating security controls across modern architectures. You’ll work closely with clients and internal teams to deliver high-quality technical assessments and actionable remediation guidance. 

As a consultant, you’ll contribute throughout the full engagement lifecycle from scoping and test planning to execution, reporting, and client presentations. Success in this role requires strong technical depth, structured testing methodologies, effective communication skills, and the ability to adapt quickly to new technologies and environments. 

Your Experience  

• 4+ years of experience in application security assessments, penetration testing, or offensive security engagements 

• Strong understanding of application security fundamentals, modern attack techniques, and common vulnerabilities affecting web applications, APIs, mobile applications, and cloud-native environments 

• Hands-on experience testing REST APIs, including authentication/authorization flaws, IDORs, injection vulnerabilities, session management issues, and business logic flaws 

• Strength with AWS services and cloud security concepts, including IAM, STS, S3, Lambda, API Gateway, CloudTrail, CloudWatch, and secure communication patterns such as SigV4 

• Solid understanding of networking and web fundamentals, including HTTP/HTTPS, TCP/IP, DNS, API communication flows, cookies, headers, and related concepts 

• Experience reviewing source code for security issues in Java, C#, and Python applications 

• Knowledge of secure coding principles and common risks such as SSRF, insecure deserialization, injection vulnerabilities, sensitive data exposure, and insecure cloud integrations 

• Understanding of SDLC, CI/CD pipelines, and secure development practices 

• Experience using security assessment and code review tools such as Burp Suite, Semgrep, Git, AWS CLI, and API testing/debugging tools 

• Comfortable working across Linux, Windows, and macOS environments 

• Experience or strong interest in AI/LLM security, including prompt injection, RAG risks, insecure integrations, excessive permissions, and the OWASP Top 10 for LLM Applications 

• Strong written and verbal communication skills, with the ability to deliver clear, actionable findings and communicate technical risks to both technical and executive stakeholders 

• Experience following structured testing methodologies, documentation standards, and validation/retesting workflows 

• Strong collaboration and interpersonal skills when working with security, engineering, and client teams 

• Ability to manage multiple concurrent engagements while maintaining high-quality deliverables and attention to detail 

• Curious, adaptable, and professional mindset with a passion for continuous learning and emerging security trends 

Nice to Have 

• Exposure to hardware or embedded device security testing 

• Familiarity with cloud-native and serverless architectures 

• Consulting or client-facing experience 

• Relevant security certifications or hands-on research contributions 

Why Bishop Fox    

At Bishop Fox, we're driven by a simple mission: deliver exceptional quality to our clients, foster a vibrant and fulfilling environment for our team, and champion excellence within our industry. Our core values, which we live by every day, are:   

• Be Excellent to Each Other  

• Do the Right Thing  

• Do What You’ll Say You’ll Do  

• Get Better Together  

• Give a Sh*t   

At Bishop Fox, we're committed to providing benefits that support your well-being and professional growth. Here's a glimpse of what we offer:   

• Generous Time Off and Company-Wide Holidays  

• Team Events and International Travel Opportunities  

• Work From Home Support  

• Training Budget  

• Saving Fund  

• Food Coupons  

• Health and Wellbeing programs  

This position is not eligible for visa sponsorship. Applicants must be authorized to work in Mexico for the duration of employment without sponsorship.  

Bishop Fox is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, including sexual orientation and gender identity, national origin, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.  All new hires must pass a background check as a condition of employment. 

Interested? Apply today! 

Contract Penetration Tester 

At Bishop Fox, security isn't just a job—it's our passion. As leaders in continuous offensive security and penetration testing, we deliver world-class customer experiences. Trusted by over a quarter of the Fortune 100, half of the Fortune 10, and top global media companies, we help safeguard digital landscapes. Our Cosmos platform, honored as Best Emerging Technology by SC Media, exemplifies our commitment to innovation.   

Joining Bishop Fox means collaborating with a curious and dedicated team. You'll tackle complex challenges for some of the world's most recognized organizations, securing their networks against real-world threats. With nearly 20 years of industry contributions—including 16 open-source tools and 50 security advisories published in the past five years—we're committed to making the digital world safer.  

We’re looking for talented, experienced professional hackers to help us secure some of the world’s most complex software and sophisticated technologies. You’ll be working alongside our US and internationally-based teams supporting clients across multiple industries.      

Responsibilities 

Bishop Fox is looking for experienced contract penetration testers with a primary focus in web application security and strong secondary expertise in cloud, mobile, source code, network, or AI/LLM security. 

You’ll work on a range of projects, from short-term assessments to longer-term program engagements with well-established clients. In this role, you’ll identify vulnerabilities, validate risk, develop creative solutions, and clearly communicate findings and remediation guidance to both technical and executive stakeholders. As a trusted advisor, you’ll help clients understand risk and make informed security decisions.  

Experience 

• 5+ years of experience planning, conducting, and managing web application penetration tests
• Deep understanding of application security fundamentals, OWASP Top 10, common vulnerabilities, and secure development best practices
• Experience assessing vulnerabilities and developing exploits across diverse targets
• Strong understanding of system and network security, authentication protocols, security protocols, and applied cryptography
• Ability to communicate complex technical findings clearly and provide practical remediation guidance to technical and executive audiences 

Preferred Experience 

Deep experience in at least one of the following: 

• Cloud Security - Experience assessing AWS cloud environments, including technologies such as IAM, EC2, VPC, EBS, S3, CloudWatch, and Lambda. 

• Mobile Application Security - Experience testing iOS and/or Android applications, including mobile application architecture, API communication, data storage, authentication flows, and common mobile security vulnerabilities. 

• Source Assisted Application Assessments: Experience evaluating applications across multiple layers, including source code, APIs, infrastructure, and integrations. Strong proficiency in Golang is highly preferred, along with familiarity in languages such as Python, Ruby, PowerShell, Java, and JavaScript. 

• Network Security - Experience with network and system exploitation, including modern tactics, techniques, and procedures such as C2 frameworks, EDR bypass, privilege escalation, password cracking, and lateral movement. 

• AI/LLM Security - Experience assessing non-deterministic security controls. 

Employment Sponsorship

This engagement is for independent contractors (1099) and is not eligible for any form of employment sponsorship. Applicants must be legally authorized to work in the United States without requiring visa sponsorship now or in the future. Applicants must be located in the United States.

All new hires must pass a background check as a condition of employment. 

Bishop Fox is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law. 

At Bishop Fox, security isn't just a job—it's our passion. As leaders in continuous offensive security and penetration testing, we deliver world-class customer experiences. Trusted by over a quarter of the Fortune 100, half of the Fortune 10, and top global media companies, we help safeguard digital landscapes. Our Cosmos platform, honored as Best Emerging Technology by SC Media, exemplifies our commitment to innovation.  

Joining Bishop Fox means collaborating with a curious and dedicated team. You'll tackle complex challenges for some of the world's most recognized organizations, securing their networks against real-world threats. With nearly 20 years of industry contributions—including 16 open-source tools and 50 security advisories published in the past five years—we're committed to making the digital world safer. 

We’re looking for talented, experienced professional hackers to help us secure some of the world’s most complex software and sophisticated technologies. You’ll be working alongside our US and internationally-based teams supporting clients across multiple industries.                                                    

Responsibilities 

You’re a penetration tester who knows their way around source code. You’ve plundered apps and pillaged networks (legally, of course). You have a passion for hacking and information security. You may also have written a few blog posts about your favorite hacks or have presented at a handful of conferences – with an eye to doing more. 

With Bishop Fox, your responsibilities would include testing web applications, hacking networks, and reversing software. As a consultant, you’ll work on a variety of projects which include short-term engagements and extended program work with well-established clients. You'll solve challenging technical problems and build creative solutions. As a trusted advisor, you’ll provide your expert opinion to help our clients navigate difficult business decisions.         

Requirements 

• 4+ years experience in planning, conducting, and managing web application penetration tests
• 5+ years of application security experience
• Deep understanding of security fundamentals (OWASP), common vulnerabilities, and application security best practices
• Skilled in vulnerability assessment and the development of exploits for diverse targets
• Background in system and network security, authentication and security protocols, and applied cryptography is helpful
• Experience with programming and scripting languages such as Python, Ruby, PowerShell, Java, JavaScript, etc.
• Bonus if you have experience reviewing Golang source code for vulnerabilities
• Proficiency with operating systems- Linux, Windows, MacOS
• Experience with network and system exploitation including modern tactics, techniques, and procedures (e.g. c2 frameworks, EDR bypass, privilege escalation, password cracking, lateral movement, etc.)
• Strong technical reporting and documentation skills
• Advanced relevant academic training, such as a degree in Computer Science or an OSCP, is a definite bonus
• Experience with AWS cloud environments preferred with an understanding of its major technologies, such as IAM, EC2, VPC, EBS, S3, CloudWatch, and Lambdas, and how to keep them secure
• Secondary expertise in one or more of the following areas preferred: Cloud Security Assessments, Mobile Application Security Testing, Hybrid Application Assessments, or AI/LLM Security Assessments. Ability to communicate technical findings clearly to both technical and executive stakeholders, including actionable remediation guidance. 

Bishop Fox has always allowed its employees to work remotely, and this role could work anywhere in the United States. Our comprehensive benefits program is tailored to meet your needs at an affordable price. We embrace diversity and an inclusive culture. We value our employees and who they are, which fosters a powerful and collective talent base to successfully serve our clients and the security community with unparalleled expertise.  

Bishop Fox is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex including sexual orientation and gender identity, national origin, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.  All new hires must pass a background check as a condition of employment. 

Interested? Apply today!    

At Bishop Fox, security isn't just a job—it's our passion. As leaders in continuous offensive security and penetration testing, we deliver world-class customer experiences. Trusted by over a quarter of the Fortune 100, half of the Fortune 10, and top global media companies, we help safeguard digital landscapes. Our Cosmos platform, honored as Best Emerging Technology by SC Media, exemplifies our commitment to innovation.  

Joining Bishop Fox means collaborating with a curious and dedicated team. You'll tackle complex challenges for some of the world's most recognized organizations, securing their networks against real-world threats. With nearly 20 years of industry contributions—including 16 open-source tools and 50 security advisories published in the past five years—we're committed to making the digital world safer. 

We’re seeking remote, US or Mexico-based hacking professionals focused on red teaming to join our team – and help us build a more secure world. 

Who You Are and What You’ll Do

You are a born red teamer; you see problems and solutions in everything. You instinctively know your way around source code. You’ve plundered apps and pillaged networks (legally, of course). You have a passion for hacking that goes beyond a career – it’s a way of life for you. At this point, you may have accumulated a few disclosures, written blog posts, and given some industry talks. 

With Bishop Fox you’ll be running red teaming engagements, starting with research and including profiling organizations, defining attack objectives and crafting attack tree graphs and other key planning efforts. You will then perform operations based on planning to achieve the attack objectives through a variety of potential attack paths, including network, web applications, physical, social engineering, and others. You will help our customers understand their attack surface by communicating, ability to respond to incidents, report on steps taken, and issues discovered. Additionally, you’ll provide thoughtful, tailored, and actionable recommendations. 

As a consultant, you’ll solve challenging technical problems and build creative solutions in a client-facing role. As a trusted advisor, you’ll provide your expert opinion to help our clients navigate difficult business decisions including how to prioritize critical findings. And as a senior penetration tester, you’ll lead small teams on one-of-a-kind engagements, mentor co-workers, and contribute significantly to the advancement of our consulting practice 

Requirements 

• 2-4 years of offensive security experience supporting a variety of adversary emulation engagements (red teaming and purple teaming) with clients from a variety of industries.
• Working knowledge of all common operating systems such as Windows, MacOS, Linux, ChromeOS
• Expertise in Windows Active Directory exploitation and lateral movement
• Working knowledge of “cloud” platforms (AWS/Azure/GCP and O365/Google Workspace) and container technologies (Kubernetes/Docker)
• Hands-on experience with c2 frameworks like Sliver, Nighthawk, Mythic, and others
• Experience with custom tool and payload development, as well as reverse engineering, and evasion techniques
• Experience researching and developing EDR evasion techniques.
• Proficiency in multiple programming languages (preferably Python, Golang, JavaScript/TypeScript, C#, C/C++, PowerShell, and/or Bash)
• Network and web-related protocol knowledge (e.g., TCP/IP, HTTP, HTTPS, etc.)
• Demonstrated experience with social engineering, conducting reconnaissance, development, and delivery of phishing/vishing pretexts as well as an understanding of email security technologies and other related countermeasures
• Excellent written and verbal communication skills 

Nice to have: 

• Expertise in exploit development and/or assembly (x86/arm) 
• Threat modeling, threat intelligence, or incident response experience 
• Experience with DevOps and CI/CD technologies 
• Experience conducting physical penetration testing engagements, including entry skills, RFID hacking, and alarm bypasses 
• OSCP/E, GWAPT, GPEN, or GXPN certifications can be helpful, but are not a necessity 

Why Bishop Fox 

At Bishop Fox, we're driven by a simple mission: deliver exceptional quality to our clients, foster a vibrant and fulfilling environment for our team, and champion excellence within our industry. Our core values, which we live by every day, are: 

• Be Excellent to Each Other 
• Do the Right Thing 
• Do What You’ll Say You’ll Do 
• Get Better Together 
• Give a Sh*t 
• Get Better Together    

At Bishop Fox, we're committed to providing benefits that support your well-being and professional growth. Here's a glimpse of what we offer:    

• Generous Time Off and Company-Wide Holidays    
• Team Events and International Travel Opportunities    
• Work From Home Support    
• Monthly Allowance for Cell Phone and Internet    
• Training Budget    
• Retirement; 401k Matching for Traditional and Roth Accounts in the US    
• Health Insurance Options Including Medical, Dental, Vision    
• Paid Parental Leave    

Bishop Fox is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex including sexual orientation and gender identity, national origin, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.  All new hires must pass a background check as a condition of employment.  

Interested? Apply today!  

At Bishop Fox, security isn't just a job—it's our passion. As leaders in continuous offensive security and penetration testing, we deliver world-class customer experiences. Trusted by over a quarter of the Fortune 100, half of the Fortune 10, and top global media companies, we help safeguard digital landscapes. Our Cosmos platform, honored as Best Emerging Technology by SC Media, exemplifies our commitment to innovation.  

Joining Bishop Fox means collaborating with a curious and dedicated team. You'll tackle complex challenges for some of the world's most recognized organizations, securing their networks against real-world threats. With nearly 20 years of industry contributions—including 16 open-source tools and 50 security advisories published in the past five years—we're committed to making the digital world safer. 

We’re seeking remote, US or Mexico-based hacking professionals focused on red teaming to join our team – and help us build a more secure world. 

Who You Are and What You’ll Do

You are a born red teamer; you see problems and solutions in everything. You instinctively know your way around source code. You’ve plundered apps and pillaged networks (legally, of course). You have a passion for hacking that goes beyond a career – it’s a way of life for you. At this point, you may have accumulated a few disclosures, written blog posts, and given some industry talks. 

With Bishop Fox you’ll be running red teaming engagements, starting with research and including profiling organizations, defining attack objectives and crafting attack tree graphs and other key planning efforts. You will then perform operations based on planning to achieve the attack objectives through a variety of potential attack paths, including network, web applications, physical, social engineering, and others. You will help our customers understand their attack surface by communicating, ability to respond to incidents, report on steps taken, and issues discovered. Additionally, you’ll provide thoughtful, tailored, and actionable recommendations. 

As a senior-level consultant, you’ll solve challenging technical problems and build creative solutions in a client-facing role. As a trusted advisor, you’ll provide your expert opinion to help our clients navigate difficult business decisions including how to prioritize critical findings. And as a senior penetration tester, you’ll lead small teams on one-of-a-kind engagements, mentor co-workers, and contribute significantly to the advancement of our consulting practice 

Requirements 

• 5+ years of offensive security experience supporting a variety of adversary emulation engagements (red teaming and purple teaming) with clients from a variety of industries.
• Working knowledge of all common operating systems such as Windows, MacOS, Linux, ChromeOS
• Expertise in Windows Active Directory exploitation and lateral movement
• Working knowledge of “cloud” platforms (AWS/Azure/GCP and O365/Google Workspace) and container technologies (Kubernetes/Docker)
• Hands-on experience with c2 frameworks like Sliver, Nighthawk, Mythic, and others
• Experience with custom tool and payload development, as well as reverse engineering, and evasion techniques
• Experience researching and developing EDR evasion techniques.
• Proficiency in multiple programming languages (preferably Python, Golang, JavaScript/TypeScript, C#, C/C++, PowerShell, and/or Bash)
• Network and web-related protocol knowledge (e.g., TCP/IP, HTTP, HTTPS, etc.)
• Demonstrated experience with social engineering, conducting reconnaissance, development, and delivery of phishing/vishing pretexts as well as an understanding of email security technologies and other related countermeasures
• Excellent written and verbal communication skills 

Nice to have: 

• Expertise in exploit development and/or assembly (x86/arm) 
• Threat modeling, threat intelligence, or incident response experience 
• Experience with DevOps and CI/CD technologies 
• Experience conducting physical penetration testing engagements, including entry skills, RFID hacking, and alarm bypasses 
• OSCP/E, GWAPT, GPEN, or GXPN certifications can be helpful, but are not a necessity 

Why Bishop Fox 

At Bishop Fox, we're driven by a simple mission: deliver exceptional quality to our clients, foster a vibrant and fulfilling environment for our team, and champion excellence within our industry. Our core values, which we live by every day, are: 

• Be Excellent to Each Other 
• Do the Right Thing 
• Do What You’ll Say You’ll Do 
• Get Better Together 
• Give a Sh*t 
• Get Better Together    

At Bishop Fox, we're committed to providing benefits that support your well-being and professional growth. Here's a glimpse of what we offer:    

• Generous Time Off and Company-Wide Holidays    
• Team Events and International Travel Opportunities    
• Work From Home Support    
• Monthly Allowance for Cell Phone and Internet    
• Training Budget    
• Retirement; 401k Matching for Traditional and Roth Accounts in the US    
• Health Insurance Options Including Medical, Dental, Vision    
• Paid Parental Leave    

Bishop Fox is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex including sexual orientation and gender identity, national origin, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.  All new hires must pass a background check as a condition of employment.  

Interested? Apply today!