Senior Threat Hunter | Remote US

About Coalfire
Coalfire is on a mission to make the world a safer place by solving our clients’ hardest cybersecurity challenges. We work at the cutting edge of technology to advise, assess, automate, and ultimately help companies navigate the ever-changing cybersecurity landscape. We are headquartered in Denver, Colorado with offices across the U.S. and U.K., and we support clients around the world.
But that’s not who we are – that’s just what we do. We are thought leaders, consultants, and cybersecurity experts, but above all else, we are a team of passionate problem-solvers who are hungry to learn, grow, and make a difference.
Position Summary
The Senior Threat Hunter is responsible for proactively identifying potential security threats by analyzing host activity, log sources, and network traffic across a diverse range of platforms and technologies. This individual will conduct threat hunting activities using intelligence gathered from adversary tactics, techniques, and procedures (TTPs) to uncover emerging threats and drive the development of countermeasures.

What You'll Do

• Analyze host activity and network traffic to detect anomalous behaviors across a variety of systems and technologies.
• Conduct threat hunting campaigns leveraging comprehensive knowledge of threat intelligence and adversary TTPs.
• Develop, refine, and document threat hunting hypotheses, tracking the effectiveness of these hunts over time.
• Collaborate with security operations and intelligence teams to incorporate hunting insights into broader security efforts.
• Assist in, or lead, the creation of appropriate countermeasures in response to identified threats.
• Maintain up-to-date knowledge of current cyber threat trends, tools, and technologies.
• Participate in continuous improvement of threat detection capabilities and methodologies.

What You'll Bring

• Deep understanding of security technologies, architecture, and tools.
• Expertise in analyzing and interpreting host and network activity across multiple platforms (e.g., Windows, Linux, cloud
• findings and communicate them to both technical and non-technical environments).
• Extensive knowledge of threat intelligence sources and adversary TTPs.
• Experience with SIEM tools, EDR platforms, and network analysis tools.
• Strong analytical skills with the ability to develop and test threat hunting hypotheses.
• Ability to effectively document stakeholders.
• Strong understanding of security principles, protocols, and standards, including OWASP, NIST, and
• ISO/IEC 27001.
• Practical knowledge of secure architecture, threat analysis, and security assessment methodologies.
• Relevant certifications such as CISSP, CEH, OSCP, or GIAC or equivalent experience
• Excellent communication and collaboration skills, with the ability to effectively convey complex technical concepts to both technical and non-technical audiences.
• Proven ltechnical skills, with experience with threat intelligence, threat hunting, security assessments and
• defensive strategies to help customers achieve security goals and objectives.
• Ability to thrive in a fast-paced, dynamic environment, and adapt quickly to changing priorities and requirements.

Why You’ll Want to Join Us
At Coalfire, you’ll find the support you need to thrive personally and professionally. In many cases, we provide a flexible work model that empowers you to choose when and where you’ll work most effectively – whether you’re at home or an office.
Regardless of location, you’ll experience a company that prioritizes connection and wellbeing and be part of a team where people care about each other and our communities. You’ll have opportunities to join employee resource groups, participate in in-person and virtual events, and more. And you’ll enjoy competitive perks and benefits to support you and your family, like paid parental leave, flexible time off, certification and training reimbursement, digital mental health and wellbeing support membership, and comprehensive insurance options.
At Coalfire, equal opportunity and pay equity is integral to the way we do business. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. Coalfire is committed to providing access, equal opportunity, and reasonable accommodation for individuals with disabilities in employment, its services, programs, and activities. To request reasonable accommodation to participate in the job application or interview process, our Human Resources team at HumanResourcesMB@coalfire.com.