Adversarial Emulation Jobs in Maynard, MA (NOW HIRING)

At BBH, Partnership is more than a form of ownership-it's our approach to business and relationships. We know that supporting your professional and personal goals is the best way to help our clients and advance our business. We take that responsibility seriously. With a 200-year legacy and a shared passion for what's next, this is the right place to build a fulfilling career.
About the Role
At Brown Brothers Harriman, cybersecurity is a critical enabler of trust, resilience, and innovation. We are seeking a highly skilled Senior Cyber Red Team Operator to join our growing Red Team and help strengthen the firm's ability to detect, respond to, and withstand sophisticated cyber threats.
In this role, you will simulate real-world adversaries through advanced red team operations, adversarial emulation, penetration testing, and purple team exercises. You will work across enterprise infrastructure, cloud environments, applications, identity platforms, and emerging technologies to identify vulnerabilities, validate attack paths, and improve BBH's overall security posture.
As a senior member of the team, you will help shape offensive security strategy, mentor developing operators, and collaborate closely with security and technology stakeholders across the organization. This is an exceptional opportunity for an experienced offensive security professional who is passionate about staying ahead of evolving threats and driving measurable improvements in cyber resilience.
Key Responsibilities

• Understand and implement BBH Red Team Operating Standard and conditional Rules of Engagement in accordance with regulatory guidelines and best practices
• Conduct risk assessments of vulnerabilities identified and write reports to facilitate the mitigations and remediations needed to improve BBH security posture
• Lead and execute red team engagements, adversary emulation exercises, and offensive security assessments including network, application, cloud, identity, endpoint, and infrastructure security testing
• Simulate sophisticated threat actor tactics, techniques, and procedures (TTPs) to validate vulnerabilities through controlled exploitation and realistic attack scenarios.
• Manage testing engagements from planning through final reporting and validation.
• Lead purple team exercises to validate security controls, improve visibility into attacker activity, and strengthen organizational resilience.
• Research emerging threats and evolving offensive security techniques.
• Deliver technical reports and executive-level risk summaries.
• Mentor team members and contribute to Red Team methodologies and best practices.
• Collaborate with security and technology stakeholders to drive remediation and improve security effectiveness.

Required Qualifications

• 8-10 years of experience in Information Security, with significant experience in offensive security, red team operations, adversary emulation, or penetration testing.
• Demonstrated experience planning and executing enterprise-scale red team engagements and multi-stage attack scenarios.
• Deep understanding of attacker methodologies, MITRE ATT&CK, privilege escalation, lateral movement, command and control, persistence mechanisms, and identity-based attacks.
• Hands-on experience testing Windows, Linux, Active Directory, cloud platforms, network infrastructure, and enterprise applications.
• Experience with scripting and automation using technologies such as Python, PowerShell, Bash, or similar languages.
• Experience identifying, exploiting, and documenting complex vulnerabilities and attack paths.
• Ability to communicate complex technical concepts clearly to technical and non-technical audiences.
• Bachelor's degree in Computer Science, Cybersecurity, Information Technology, or equivalent practical experience.
• Expertise with security assessment methodology, vulnerability management, OWASP model, CVE ratings
• Participate in Cyber Tabletop Exercises as a subject matter expert for adversary behavior, intent, and TTPs

Nice-to-Haves

• Financial services or other highly regulated industry experience.
• Relevant offensive security certifications such as PNPT, OSCP, OSEP, OSWE, CRTO, CRTE, GRTP, or equivalent advanced offensive security credentials.
• Experience with commercial offensive security and penetration testing management platforms, including Core Impact and AttackForge, preferred.
• Experience conducting cloud security assessments in Microsoft Azure environments.
• Experience participating in purple team exercises that validate security controls, test defensive coverage, improve organizational resilience, and facilitate collaboration between offensive and defensive security teams to strengthen overall security effectiveness.
• Contributions to open-source security projects, public research, conference speaking, or community involvement.

Why BBH
At BBH, you'll join a collaborative team that values curiosity, innovation, and diverse perspectives. Our Red Team operates at the forefront of offensive security, helping protect critical business operations through realistic adversary simulation and proactive security testing.
What You'll Gain

• Opportunities to conduct impactful, enterprise-scale red team operations.
• Exposure to modern cloud, identity, application, and infrastructure security challenges.
• Opportunities to mentor others and influence the future direction of BBH's offensive security program.
• Competitive compensation and comprehensive benefits.
• A culture that promotes inclusion, collaboration, and long-term career growth.

Don't meet every qualification listed above? We encourage you to apply. We recognize that talent comes from many backgrounds and experiences, and we are committed to building a diverse and inclusive team where everyone can thrive.
Salary Range
NJ: $120,000 - $160,000 base salary + annual target bonus
MA: $110,000 - $160,000 base salary + annual target bonus
BBH and its affiliates' compensation program includes base salary, discretionary bonuses, and profit-sharing. The anticipated base salary range(s) shown above are only for the indicated location(s) and may differ in other locations due to cost of living and labor considerations. Base salaries may vary based on factors such as skill, experience and qualification for the role. BBH's total rewards package recognizes your contributions with more than just a paycheck-providing you with benefits that enhance your experience at BBH from long-term savings, healthcare, and income protection to professional development opportunities and time off, our programs support your overall well-being.
We value diverse experiences. We value diverse experiences and transferrable skillsets. If your career hasn't followed a traditional path, includes alternative experiences, or doesn't meet every qualification or skill listed in the job description, please do go ahead and apply.
About BBH:
Brown Brothers Harriman (BBH) is a premier global financial services firm, known for premium service, specialist expertise, technology solutions and partnership approach to client management. Across Investor Services and Capital Partners, we work with an enviable roster of sophisticated clients who make BBH their first call when they are tackling their hardest challenges. Delivering for our clients and each other energizes us.
We believe that how we do our work is just as important as what we do. We are relentless problem solvers who know our best ideas come from collective debate and development-so we are never possessive about our ideas. Every day we come together as a diverse community of smart and caring people to deliver exceptional service and expert advice-creating success that lasts. No matter where you sit in the organization, everyone is empowered to contribute their ideas. BBHers can pick up the phone and call any colleague, and they are happy to help. Expanding your impact beyond your daily role is part of how we operate as trusted partners to one another.
We believe stability is a competitive advantage, but being stable means having the knowledge, skill, and discipline to evolve, often-pushing the boundaries of innovation. As a private partnership, every investment we make is in the relationships, technologies, products and development we believe are in the long-term interests of our clients and our people. Our long-tenured leaders are experts in their areas and are actively involved in the day-to day business, taking the time to provide guidance and mentoring to build the next generation of BBHers. Because we know, our success begins with yours.
Go to BBH.com to learn more about our rewards and benefits, philanthropy, approach to sustainability or how we support you to thrive personally, physically and financially.
We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, gender, national origin, age, genetic information, creed, marital status, sexual orientation, gender identity, disability status, protected veteran status, or any other protected status under federal, state or local law.