Senior Cloud Security Engineer

VulnU; United States; Remote; USD 135,000 - 216,000; Full time

Benefits offered by this job

Paid parental leave

25 days PTO

Job summary

Peraton seeks a Senior Cloud Security Engineer to lead threat hunting, vulnerability analysis, and remediation across a multi-cloud environment. You will work with AWS, Azure, GCP, and OCI, using Qualys and Tenable to identify and remediate risks, while developing detection rules and hunt playbooks.

Strong collaboration with engineers and ISSOs/ISSMs is essential. Remote work within the United States is supported, with standard EST hours.

Qualifications

• Bachelor's degree and 12+ years in information security or equivalent combination.
• Hands-on cloud security across multiple platforms (AWS, Azure, GCP, OCI).
• Experience with vulnerability scanning and MITRE ATT&CK.
• Ability to author detection logic and hunt playbooks.
• Strong communication with customers and teams.

Responsibilities

• Lead proactive threat hunts across AWS, Azure, GCP and OCI.
• Analyze cloud telemetry and SIEM data to investigate activity.
• Manage Qualys and Tenable scanning across tenants.
• Remediate threats and misconfigurations with engineering teams.
• Develop and tune detection rules and automated hunts.
• Mentor junior security engineers and support incident response.

Skills

Cloud security engineering

Threat hunting

Vulnerability management

SIEM analysis

Scripting (Python/PowerShell/Bash)

Infrastructure as code (Terraform/Ansb

Education

Bachelor's degree in a related field

Master's degree

Associate degree

High School diploma or equivalent

Tools

Qualys

Tenable

Splunk

Microsoft Sentinel

Elastic

Terraform

Ansible

Job description

# Senior Cloud Security EngineerPeraton · peraton.comCategory: Cloud SecurityLocation: RemoteLevel: SeniorSalary: $135,000 – $216,000Clearance: Public Trust (ability to obtain)## Quality of lifeWhat the posting states. Hover or tap a perk to see the line it came from.* Paid parental leave* 25 days PTOPeraton OverviewPeraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.ResponsibilitiesPeraton is looking for a Senior Cloud Security Engineer to lead proactive threat hunting, vulnerability analysis, and remediation in support of a multi-cloud environment with 70+ customer tenants and growing. Aside from technical qualifications, the applicant should have effective communication skills, both written and verbal.The applicant must have hands-on security experience across multiple cloud platforms (AWS, Azure, GCP, OCI) and expertise with Qualys and Tenable for vulnerability management. This role goes beyond scanning: the engineer will form and test threat hypotheses, correlate vulnerability, configuration, and log data to find active or likely compromise, and drive findings through to verified remediation. An investigative mindset, strong analytical skills, and attention to detail are prerequisites for this position.The Senior Security Engineer will collaborate closely with our customers, internal engineering and patching teams, and ISSOs/ISSMs to ensure threats are identified early, risk is prioritized accurately, and remediation is completed and documented.Location: Remote (but must reside and perform all work within the United States)Work hours: This position requires working online from 8:00 AM Eastern to 5:00 PM EasternDay to Day Roles and Responsibilities:Plan and conduct hypothesis-driven threat hunts across AWS, Azure, GCP, and OCI environments, using threat intelligence and the MITRE ATT&CK framework to identify adversary activity that automated tools have not detectedAnalyze cloud-native telemetry (AWS CloudTrail and GuardDuty, Microsoft Defender for Cloud and Azure Monitor, Google Security Command Center, OCI Cloud Guard and Audit logs) alongside SIEM data to investigate suspicious activityAdminister and optimize Qualys and Tenable (Tenable.io/Tenable.sc/Nessus) scanning across all cloud tenants, including scan policies, agent and connector deployment, asset coverage, and credentialed scanningAnalyze vulnerability and configuration findings, eliminate false positives, and prioritize remediation by exploitability, asset criticality, and exposure, including CISA Known Exploited Vulnerabilities (KEV)Lead remediation of identified threats and vulnerabilities, working with engineering and patching teams to patch, harden, or apply compensating controls, and verify closure through rescanningIdentify and remediate cloud misconfigurations, excessive IAM permissions, exposed services, and STIG/CIS benchmark deviationsDevelop and tune detection rules, queries, and automated hunt playbooks so successful hunts become repeatable detectionsSupport incident response as a senior technical resource, including scoping, containment recommendations, and root cause analysisProduce hunt reports, remediation tracking, and POA&M inputs, and brief findings and risk to customers, ISSOs/ISSMs, and leadershipMentor junior security engineers in threat hunting techniques, vulnerability analysis, and tool usageQualificationsBasic Qualifications:Bachelors degree and 12 years of experience or a Masters degree and 10 years of experience or an Associates degree and 14 years of experience or a High School diploma/eqivalent and 16 years of experience.Must be a U.S. Citizen with the ability to obtain/maintain a DHS Public Trust.8+ years of experience in information security, including 5+ years in cloud security engineeringHands-on security experience in at least three of the following cloud platforms: AWS, Azure, GCP, and OCIExpertise with Qualys (VMDR, Cloud Agent, Policy Compliance) and Tenable (Tenable.io, Tenable.sc, Nessus) for vulnerability scanning, analysis, and reportingDemonstrated experience conducting threat hunts and investigations using the MITRE ATT&CK frameworkProficiency writing queries and analyzing logs in a SIEM or log platform (Splunk, Microsoft Sentinel, Elastic, or equivalent)Experience remediating vulnerabilities and misconfigurations on Windows and Linux systems, containers, and cloud-native servicesIn-depth understanding of cloud identity and access management, network security, encryption, and logging architectureScripting or automation experience in Python, PowerShell, or Bash, and familiarity with infrastructure-as-code (Terraform, Ansible)Working knowledge of STIGs, CIS Benchmarks, and NIST 800-53 controlsPreferred Qualifications:One or more relevant certifications such as CISSP, CCSP, GCIH, GCTI, GCFA, AWS Certified Security - Specialty, Microsoft AZ-500, or Google Professional Cloud Security EngineerTarget Salary Range$135,000 - $216,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.Benefits StatementPeraton offers eligible employees a variety of benefits including medical, dental, vision, life, health savings account, short/long term disability, EAP, parental leave, 401(k), paid time off (PTO) for vacation, and company paid holidays. A full listing of available benefits can be viewed at https://www.careers.peraton.com/benefits.Application StatementsThe application period for the job is estimated to be 30 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates. By applying to this job, you are expressing interest in the role and the Company. During the review of your application, you may be required to participate in an on-camera interview, as well as participate in a process to verify your identity. Use of artificial intelligence (AI) tools of any kind during Peraton interviews is strictly prohibited unless the candidate has obtained prior written authorization. All interview responses must be the candidate’s own.EEOEEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.