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Principal Red Team Operator

GlaxoSmithKline
paid holidays
United States, Pennsylvania, Philadelphia
2929 Walnut Street (Show on map)
Oct 31, 2025
Site Name: Home Worker - USA
Posted Date: Oct 31 2025

As a Red Team Operator - you will have a deep understanding of computer science and information security. You understand advanced concepts like exploit development and stealthy operations. This role will have access to a very diverse network at a company dedicated to providing care to patients across the globe.

This role will provide YOU the opportunity to lead key activities to progress YOUR career. The responsibilities include the following:

  • Leverage real attacker emulation to simulate security incidents, observe response across monitoring and incidents, and identify enhancement opportunities
  • Develop after action reports to help justify this investment and use the results to hone the security posture for the overall organization
  • Execute Red Team engagements in a variety of networks using real-world adversarial Tactics, Techniques, and Procedures (TTPs) from conception to report delivery
  • Conduct open-source intelligence gathering, network vulnerability scanning, exploitation of vulnerable services, lateral movement, install persistence in a target network(s), and manage C2 infrastructure
  • Develop payloads, scripts and tools that weaponize new proof-of-concepts for exploitation, evasion, and lateral movement
  • Document identified vulnerabilities and research corrective/remediation actions in order to recommend a risk mitigation technique(s)
  • Maintain knowledge of applicable Red Team policies, regulations, and compliance documents
  • Communicate effectively with team members and during an engagement
  • Keep current with TTPs and the latest offensive security techniques
Why You?

Basic Qualifications:

We are looking for professionals with these required skills to achieve our goals:

  • 3+ years of experience as a red team operator
  • Experience with offensive tools and platforms such as Kali Linux, Cobalt Strike, Metasploit, Covenant, Sliver, Bloodhound, Ghostpack, Nmap, Nessus, Zmap, Massscan, EyeWitness, Burp Suite
  • Experience with writing high-quality assessment reports and communicating results to clients, teammates, and senior leadership
  • Knowledge of functionality and capabilities of network defense technologies, including firewalls, IDS and IPS, antivirus, and web content filtering
  • Experience building red team infrastructure and new approaches to testing a variety of environments
  • Have experience to operate and lead organized security testing engagements without assistance

Preferred Qualifications:

If you have the following characteristics, it would be a plus:

  • 4+ years' experience focused on Red Team operations
  • Market relevant certifications such as CREST/OSCP/OSCE/OSWP
  • Familiarity with various programming languages such as Python, Ruby, and Rails are a plus
  • Experience in web programming (Java, ASP, ASP.NET, HTML, JavaScript)
  • Experience with cloud-based environments (GCP, Azure, AWS, etc.) and with AI Systems - building, utilization, threat modelling, and testing
  • Demonstrated rapid tool development & automation experience
  • Regular Expressions (RegEx)
  • Knowledge of SQL Server, SQL Client Tools, and T-SQL Stored Procedures
  • Understanding of Web Application Firewalls
  • Reverse engineering

#LI-GSK

The US annual base salary for new hires in this position ranges from $127,500 to $212,500. The US salary ranges take into account a number of factors including work location within the US market, the candidate's skills, experience, education level and the market rate for the role. In addition, this position offers an annual bonus and eligibility to participate in our share based long term incentive program which is dependent on the level of the role. Available benefits include health care and other insurance benefits (for employee and family), retirement benefits, paid holidays, vacation, and paid caregiver/parental and medical leave. If salary ranges are not displayed in the job posting for a specific country, the relevant compensation will be discussed during the recruitment process.

Please visit GSK US Benefits Summary to learn more about the comprehensive benefits program GSK offers US employees.

Why GSK?
Uniting science, technology and talent to get ahead of disease together.

GSK is a global biopharma company with a purpose to unite science, technology and talent to get ahead of disease together. We aim to positively impact the health of 2.5 billion people by the end of the decade, as a successful, growing company where people can thrive. We get ahead of disease by preventing and treating it with innovation in specialty medicines and vaccines. We focus on four therapeutic areas: respiratory, immunology and inflammation; oncology; HIV; and infectious diseases - to impact health at scale.

People and patients around the world count on the medicines and vaccines we make, so we're committed to creating an environment where our people can thrive and focus on what matters most. Our culture of being ambitious for patients, accountable for impact and doing the right thing is the foundation for how, together, we deliver for patients, shareholders and our people.

If you require an accommodation or other assistance to apply for a job at GSK, please contact the GSK Service Centre at 1-877-694-7547 (US Toll Free) or +1 801 567 5155 (outside US).

GSK is an Equal Opportunity Employer. This ensures that all qualified applicants will receive equal consideration for employment without regard to race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), parental status, national origin, age, disability, genetic information (including family medical history), military service or any basis prohibited under federal, state or local law.

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GSK does not accept referrals from employment businesses and/or employment agencies in respect of the vacancies posted on this site. All employment businesses/agencies are required to contact GSK's commercial and general procurement/human resources department to obtain prior written authorization before referring any candidates to GSK. The obtaining of prior written authorization is a condition precedent to any agreement (verbal or written) between the employment business/ agency and GSK. In the absence of such written authorization being obtained any actions undertaken by the employment business/agency shall be deemed to have been performed without the consent or contractual agreement of GSK. GSK shall therefore not be liable for any fees arising from such actions or any fees arising from any referrals by employment businesses/agencies in respect of the vacancies posted on this site.

Please note that if you are a US Licensed Healthcare Professional or Healthcare Professional as defined by the laws of the state issuing your license, GSK may be required to capture and report expenses GSK incurs, on your behalf, in the event you are afforded an interview for employment. This capture of applicable transfers of value is necessary to ensure GSK's compliance to all federal and state US Transparency requirements. For more information, please visit the Centers for Medicare and Medicaid Services (CMS) website at https://openpaymentsdata.cms.gov/

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