Sr. Associate, Offensive Security

ROLE SUMMARY

Our Global Cyber Defense team is responsible for safeguarding Pfizers digital assets and infrastructure through proactive threat detection response and risk mitigation across on-premises cloud and hybrid environments.

The Senior Associate Offensive Security supports offensive security activities that proactively identify validate and help prioritize security weaknesses across the digital environment. This role contributes to penetration testing adversary simulation and purple team exercises that continuously assess the organizations exposure to realworld threats. Operating within a highly regulated pharmaceutical environment the Senior Associate partners closely with detection remediation engineering and risk teams to ensure findings are clearly documented actionable and translated into measurable security improvements. This role will report to the Sr. Manager Offensive Security.

ROLE RESPONSIBILITIES

• Conduct offensive security testing activities including penetration tests and adversary simulation exercises across onpremises cloud and hybrid environments.

• Support red team and purple team engagements by executing test plans collecting evidence and helping evaluate defensive control effectiveness.

• Identify validate and document security weaknesses including technical details proof of concept evidence and clear remediation recommendations.

• Assist with translating offensive findings into actionable improvement items for detection engineering and remediation teams.

• Contribute to threatinformed testing by mapping observed techniques to common attacker behaviors and helping highlight realistic attack paths.

• Maintain high quality reporting standards and ensure deliverables are accurate complete and aligned to ethical testing expectations and internal requirements.

• Support continuous improvement efforts for offensive security tooling automation repeatable test methods and playbooks.

• Collaborate with crossfunctional partners (e.g. detection incident response vulnerability management infrastructure cloud) to coordinate testing logistics and minimize business disruption.

• Escalate complex technical issues highrisk findings or unexpected conditions.

BASIC QUALIFICATIONS

• Applicant must have a Bachelors degree in Information Security Computer Science Engineering or a related field with at least 2 years of experience in cybersecurity with handson focus in offensive security penetration testing vulnerability research or security engineering; OR a masters degree with more than 0 years of experience; OR an associates degree with 6 years of experience; OR a high school diploma (or equivalent) with 8 years of relevant experience.

• Practical experience executing penetration tests or security assessments including reconnaissance exploitation validation and reporting.

• Strong understanding of common attack techniques and enterprise security concepts across identity endpoints networks and cloud services.

• Ability to clearly document technical findings and communicate risk and remediation guidance to technical stakeholders.

• Working knowledge of at least one scripting/programming language commonly used for security work (e.g. Python PowerShell Bash).

• Strong collaboration skills and ability to operate in a processdriven highly regulated environment.

PREFERRED QUALIFICATIONS

• Strong handson knowledge of:

  • Red team and adversary emulation methodologies (MITRE ATT&CKaligned)

  • Application cloud network and identity penetration testing

  • Social engineering and phishing simulations (where appropriate)

  • Tooling and frameworks commonly used in offensive security

• Experience in pharmaceutical biotech life sciences or similarly regulated industries.

• Demonstrated capability supporting offensive security testing in cloud or hybrid environments.

• Exposure to partnering with detection engineering / SOC teams to improve detections based on offensive findings.

• Experience working in regulated industries (e.g. healthcare life sciences pharmaceuticals) or environments with high compliance expectations.

• Relevant certifications (e.g. CISSP OSCP CRTO GPEN/GXPN) or similar offensive security credentials.

• Demonstrated interest in improving repeatability through tooling automation and standardized playbooks.

PHYSICAL/MENTAL REQUIREMENTS

• No special physical requirements.

• Applicants should be capable of working through a personal laptop computer or mobile device for extended periods.

NON-STANDARD WORK SCHEDULE TRAVEL OR ENVIRONMENT REQUIREMENTS

• Travel as required by the business (less than 5% domestic and/or international)

• Work Location Assignment: Must be able to work in assigned Pfizer office 2-3 days per week or as needed by the business

• This role is NOT remote

Other Job Details:

• Last Date to Apply for Job: August 24th 2026

• Work Location Assignment:Hybrid. Must be able to work from assigned Pfizer office 2-3 days per week or as needed by the business

Relocation assistance may be available based on business needs and/or eligibility.

Candidates must be authorized to be employed in the U.S. by any employer.

U.S. work visa sponsorship (such as TN O-1 H-1B etc.) is not available for this role now or in the future.

To learn more about acceptable and prohibited uses of AI during the recruitment process please review our candidate AI-use guidelines available onPfizer Careers.