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Whitebox Jobs (NOW HIRING)

Sr. Penetration Tester

Tempe, AZ · Hybrid

$110K - $135K/yr

Perform whitebox assessment on an ongoing and project basis * Create custom tool(s) and/or modify existing tool(s) to aid with vulnerability detection automation process * Communicate and work ...

The Cyber Test Engineer role involves testing and evaluating systems using a Whitebox adversarial approach, focusing on security controls and data flows within the architecture of systems for Air ...

Sr. Penetration Tester

Tampa, FL · Hybrid

$110K - $135K/yr

Perform whitebox assessment on an ongoing and project basis * Create custom tool(s) and/or modify existing tool(s) to aid with vulnerability detection automation process * Communicate and work ...

Completed software vulnerability training with blackbox/whitebox tool exposure. Strong understanding of "OWASP top 10" vulnerabilities and how to remediate them. Excellent verbal and written ...

Completed software vulnerability training with blackbox/whitebox tool exposure. Strong understanding of "OWASP top 10" vulnerabilities and how to remediate them. Excellent verbal and written ...

Lead SIT Engineer

Las Vegas, NV · On-site

$97K - $128K/yr

Perform API-level (whitebox) testing across system components; maintain automated regression suites. * Identify root causes of defects; produce detailed bug reports with reproduction steps for ...

Lead SIT Engineer

Las Vegas, NV · On-site

$97K - $128K/yr

Perform API-level (whitebox) testing across system components; maintain automated regression suites. * Identify root causes of defects; produce detailed bug reports with reproduction steps for ...

Lead SIT Engineer

Las Vegas, NV · On-site

$97K - $128K/yr

Perform API-level (whitebox) testing across system components; maintain automated regression suites. * Identify root causes of defects; produce detailed bug reports with reproduction steps for ...

... Whitebox Testing. Identify and explain the risks associated with common application vulnerabilities, demonstrate exploitation, and recommend mitigation options. Determine and clearly communicate ...

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Whitebox information

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How much do whitebox jobs pay per hour?

As of Jul 11, 2026, the average hourly pay for whitebox in the United States is $24.09, according to ZipRecruiter salary data. Most workers in this role earn between $19.71 and $26.92 per hour, depending on experience, location, and employer.

What is a Whitebox job?

A Whitebox job typically refers to Whitebox testing, a software testing technique where the tester has access to the internal code, structure, and logic of an application. It is often performed by developers or specialized testers to verify code quality, security, and functionality. Whitebox testers analyze code paths, decision branches, loops, and data flows to identify potential vulnerabilities and errors. This type of testing helps ensure robust, efficient, and secure software.

What are the key skills and qualifications needed to thrive in the Whitebox position, and why are they important?

To excel as a Whitebox Tester (Whitebox QA Engineer), you need a solid background in programming, software development, and an understanding of software architecture, typically with a degree in computer science or a related field. Familiarity with source code management tools (like Git), scripting languages (such as Python or Java), and automated testing frameworks (like JUnit or Selenium) is usually required, along with relevant certifications such as ISTQB. Strong analytical thinking, attention to detail, and effective communication skills help professionals stand out in this role. These abilities enable Whitebox Testers to identify vulnerabilities, ensure code quality, and collaborate efficiently with development teams for robust software releases.

What are the typical responsibilities of a Whitebox Tester in a software development team?

A Whitebox Tester is primarily responsible for designing and executing tests based on an understanding of the internal code, identifying defects, reviewing code for logical errors, and ensuring comprehensive test coverage. They collaborate closely with developers, often participating in code reviews and sprint meetings to align testing efforts with development goals. On a typical day, Whitebox Testers may write automated test scripts, analyze code pathways, and document test results or issues found. This role often involves continuous learning and adaptation as software evolves, making it ideal for those who enjoy problem-solving and working as part of a dynamic, agile team.

More about Whitebox jobs
What states have the most Whitebox jobs? States with the most job openings for Whitebox jobs include:
Infographic showing various Whitebox job openings in the United States as of July 2026, with employment types broken down into 90% Full Time, and 10% Part Time. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution, with an average salary of $50,106 per year, or $24.1 per hour.
Sr. Penetration Tester

Sr. Penetration Tester

MUFG Bank, Ltd.

Tempe, AZ • Hybrid

$110K - $135K/yr

Full-time

Medical, Retirement, PTO

Re-posted 4 days ago


Job description

Do you want your voice heard and your actions to count?

Discover your opportunity with Mitsubishi UFJ Financial Group (MUFG), the 7th largest financial group in the world. Across the globe, we’re 120,000 colleagues, striving to make a difference for every client, organization, and community we serve. We stand for our values, building long-term relationships, serving society, and fostering shared and sustainable growth for a better world.

With a vision to be the world’s most trusted financial group, it’s part of our culture to put people first, listen to new and diverse ideas and collaborate toward greater innovation, speed and agility. This means investing in talent, technologies, and tools that empower you to own your career.

Join MUFG, where being inspired is expected and making a meaningful impact is rewarded.

The selected colleague will work at an MUFG office or client sites four days per week and work remotely one day. A member of our recruitment team will provide more details.

Job Summary

We are seeking a Sr. Penetration Tester with experience in whitebox assessment to join our growing team. Generally, we are looking for candidates with 5+ years of Cyber Security experience with a focus on whitebox penetration testing to join our Enterprise Information Security organization on the Penetration Testing team. The successful candidate will play a key role in applications/web APIs assessment based on OWASP Top 10, SANS 25, Mitre ATT&CK, and capable to read complex codes to determine exploitable vector(s) pertaining to critidal/high CVEs reported in major Java/.Net's web frameworks, and can create custom tools to assist in testing and process automation.

Major Responsibilities

  • Perform whitebox assessment on an ongoing and project basis
  • Create custom tool(s) and/or modify existing tool(s) to aid with vulnerability detection automation process
  • Communicate and work closely with application managers and lead developers accross business lines on security finding(s) to ensure their understanding of associated risks and actions needed to remediate those risks
  • Taking the lead in identifying, and evaluating application security issues as they arise and coordinating with key stakeholder(s) to ensure that issues are mitigated and/or remediated in a timely basis
  • Continually research on new exploitation/attack techniques against technology stack(s) currently being used at the organization
  • Maintaining familiarity with industry trends and security best practices
  • Contributing to the teams continuous improvement efforts

Qualifications

  • Bachelor's Degree in Computer Science or related fields; applicable specialized training; or equivalent work experience - equally preferable
  • Possessing one or more of these certifications are highly desirable: OSWE or equivalent
  • 5+ years of experience in software development AND white box assessment for application(s) written in one of these languages: Java, C#, C/C++
  • Solid knowledge in exploitation development, binary reverse engineering and/or techniques to bypass Java/.Net sandbox are highly desirable
  • Solid knowledge in understanding secure software development life cycle (SSDLC), CI/CD pipelines and Waterfall/Agile methodologies
  • Solid knowledge in understanding of common software security issues and remediation techniques (OWASP Top 10, SANS 25, Mitre ATT&CK, etc.)
  • 5+ years of experience in analyzing vulnerabilities and delivering clear and coherent written report with proper mitigation recommendations
  • Understanding of one or more compliance frameworks: NIST, FFIEC, GLBA, SOX, PCI, etc.
  • Solid knowledge in one or more of the following technology areas are highly desirable:
    • Network infrastructure (technologies, architectures, operations), Clouds (Oracle/AWS/Azure)
    • Various network and host-based security products and services
    • Active Directory, servers, desktops and mobile devices
    • Unix, Linux, AIX
    • SQL, Oracle, DB2 Databases
  • Ability to perform technical risk assessments and synthesize observations at a macro level, identifying indicators of changing risk and/or symptoms of process or control deficiencies
  • Ability to identify and propose process and technology controls in dynamic environments

The typical base pay range for this role is between $110K - $135K depending on job-related knowledge, skills, experience and location. This role may also be eligible for certain discretionary performance-based bonus and/or incentive compensation. Additionally, our Total Rewards program provides colleagues with a competitive benefits package (in accordance with the eligibility requirements and respective terms of each) that includes comprehensive health and wellness benefits, retirement plans, educational assistance and training programs, income replacement for qualified employees with disabilities, paid maternity and parental bonding leave, and paid vacation, sick days, and holidays. For more information on our Total Rewards package, please click the link below.

MUFG Benefits Summary

The above statements are intended to describe the general nature and level of work being performed. They are not intended to be construed as an exhaustive list of all responsibilities duties and skills required of personnel so classified. We are proud to be an Equal Opportunity Employer and committed to leveraging the diverse backgrounds, perspectives and experience of our workforce to create opportunities for our colleagues and our business. We do not discriminate on the basis of race, color, national origin, religion, gender expression, gender identity, sex, age, ancestry, marital status, protected veteran and military status, disability, medical condition, sexual orientation, genetic information, or any other status of an individual or that individual’s associates or relatives that is protected under applicable federal, state, or local law.

MUFG logo

About MUFG

Sourced by ZipRecruiter

Discover your opportunity with Mitsubishi UFJ Financial Group (MUFG), the 6th largest financial group in the world. Across the globe, we're 160,000 colleagues, striving to make a difference for every client, organization, and community we serve. We stand for our values, building long-term relationships, serving society, and fostering shared and sustainable growth for a better world. With a vision to be the world's most trusted financial group, it's part of our culture to put people first, listen to new and diverse ideas and collaborate toward greater innovation, speed and agility. This means investing in talent, technologies, and tools that empower you to own your career.

Industry

Banking and credit intermediation

Company size

10,000+ Employees

Headquarters location

New York, NY, US

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