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Security Engineer III - Infrastructure Security (Cloud, Vulnerability Management, and Compliance)

Remote, USA Full-time Posted 2025-11-09

Join the 6sense Team: Revolutionizing B2B Revenue Creation with AI-Powered Security

6sense is a pioneering B2B sales and marketing platform that leverages AI to predict customer buying behavior and recommend actionable engagement strategies. Our mission is to transform how businesses create revenue by unlocking high-quality pipeline to revenue conversion. We're seeking a highly skilled Security Engineer III - Infrastructure Security to join our dynamic team, focusing on cloud security, vulnerability management, and compliance.

About Us

At 6sense, our people are our greatest asset. We operate with a culture of accountability, growth mindset, integrity, fun, and teamwork. Our Being 6sense values guide everything we do, from innovation to customer satisfaction. We're committed to creating a workplace where difference-makers can thrive, take risks, and make a meaningful impact.

Purpose of the Job

As a Security Engineer III - Infrastructure Security, you will play a critical role in protecting our platform and ensuring the security of our product. You will collaborate with infrastructure, platform, and engineering teams to identify and mitigate cloud security risks, ensuring the confidentiality, integrity, and availability of our systems and data.

Responsibilities & Accountabilities

  • Operate and manage our Cloud-Native Application Protection Platform (CNAPP) tool to facilitate infrastructure security vulnerability management processes.
  • Conduct comprehensive cloud security assessments and implement remediation strategies to address identified risks.
  • Advise infrastructure teams on cloud security standards, hardening activities, and best practices to ensure secure configuration and deployment.
  • Perform vulnerability assessments of golden Amazon Machine Images (AMIs) and ensure the security logging standard is adopted and followed.
  • Provide logging and monitoring support to Security Operations, ensuring timely detection and response to security incidents.
  • Leverage scripting skills to automate tasks, integrate tools, and build workflows that enhance security operations efficiency.
  • Support risk assessment, compliance, and other security department initiatives, contributing to the development of security policies and procedures.
  • Design and execute quarterly Objectives and Key Results (OKRs), aligning with the company's strategic objectives.

Performance Measurement

Success in this role will be measured by:

  • Understanding of the 6sense product and platform basics, including architecture and security controls.
  • Active participation in weekly 1:1s with the manager and monthly skip-level meetings to ensure alignment and feedback.
  • Implementation of security controls considering the latest security threats, trends, and best practices to maintain an effective and efficient security posture.
  • Effective vulnerability management, including identification, prioritization, and remediation of vulnerabilities within targeted Service Level Agreements (SLAs) or risk acceptance.
  • Maintaining an accurate inventory of security scope and coverage for 6sense products, as well as up-to-date collateral, metrics, and processes.

Person Specification

Educational and Experience Requirements

  • 3-5 years of experience in information security, with a focus on cloud security, infrastructure security, security engineering, or Site Reliability Engineering (SRE).
  • Familiarity with AWS security controls, monitoring, and orchestration tools, such as Security Control Policies (SCPs), GuardDuty, Config, and Macie.
  • Working knowledge of network security, Web Application Firewalls (WAFs), DDoS mitigation, authentication, encryption, and vulnerability management.
  • Understanding of CI/CD pipelines, Kubernetes, Infrastructure as Code (IaC), and serverless technologies.

Preferred Qualifications

  • Bachelor's degree in a related field, such as Computer Science, Information Technology, or Cybersecurity.
  • Relevant industry certifications, such as AWS Certified Security - Specialty, Google Cloud Certified Professional Cloud Security Engineer, or Certified Cloud Security Professional (CCSP).

Competencies and Behaviors

To succeed in this role, you should possess:

  • In-depth knowledge of at least one major cloud platform (e.g., AWS, GCP) and their native security services, preferably AWS.
  • Working knowledge of Identity and Access Management (IAM), WAF, GuardDuty, Security Hub, EC2, Single Sign-On (SSO), Key Management Service (KMS), and AWS Organizations.
  • Understanding of security principles, including threat modeling, risk assessment, and incident response.
  • Proficiency in networking concepts, protocols (TCP/IP, HTTP, DNS), and network security (firewalls, VPNs, intrusion detection).
  • Hands-on experience with scripting languages (Python, Bash) for automation and security tasks.
  • Familiarity with security tools like vulnerability scanners, intrusion detection systems, and Security Information and Event Management (SIEM) solutions.
  • Understanding of DevOps/DevSecOps practices, CI/CD pipelines, and IaC tools.
  • Excellent communication skills, including verbal, written, and presentation skills, with the ability to address diverse audiences.

Career Growth Opportunities and Learning Benefits

At 6sense, we're committed to the growth and development of our employees. We offer:

  • A comprehensive learning and development program, including access to our LinkedIn Learning platform.
  • Quarterly wellness education sessions to encourage self-care and personal growth.
  • Employee Resource Groups (ERGs) that celebrate and energize our diverse workforce.
  • A growth mindset culture that encourages innovation, risk-taking, and continuous learning.

Work Environment and Company Culture

We offer a flexible, hybrid remote work arrangement, allowing you to work from home or one of our offices. Our company culture is built on:

  • Accountability: We take ownership of our actions and decisions.
  • Growth Mindset: We believe in continuous learning and improvement.
  • Integrity: We operate with transparency and honesty.
  • Fun: We enjoy our work and have fun while doing it.
  • One Team: We collaborate and support each other.

Compensation, Perks, and Benefits

We offer a competitive compensation package, including:

  • A base salary range of $131,169 to $192,381, depending on experience and location.
  • A bonus program or commission plan.
  • Stock options.
  • Generous health insurance coverage.
  • Life and disability insurance.
  • A 401K employer matching program.
  • Paid holidays.
  • Self-care days.
  • Paid time off (PTO).

Equal Opportunity Employer

6sense is an Equal Employment Opportunity and Affirmative Action Employer. We welcome applications from diverse candidates and are committed to creating an inclusive work environment.

Take the Next Step

Are you ready to join our team and contribute to revolutionizing B2B revenue creation with AI-powered security? Apply now and let's discuss how you can become a vital part of our success story.

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