Senior Engineer, Platform Security – Reliability

Kairos Power

. Define, implement, and maintain security baselines for cloud and Linux platforms .

Posted 10/13/2026full-timeRemote • California • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in cloud security, particularly with AWS and Google Cloud, while implementing and maintaining security baselines and automated compliance checks. Proficient in Linux systems administration, infrastructure automation, and incident response, ensuring secure and reliable production environments.

Highest-signal resume keywords

AWS Security ControlsLinux Systems AdministrationInfrastructure AutomationIncident Response ManagementCloud Security Principles

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Cloud SecurityInfrastructure as CodeVulnerability ManagementIdentity and Access ManagementNetwork SecurityPython ProgrammingMonitoring and LoggingDisaster RecoveryConfiguration ManagementService Health Indicators

Soft Skills

Clear CommunicationStakeholder ManagementMentoringOperational OwnershipCollaboration

Tools & Technologies

AWS Managed GrafanaTLSDNSFirewallsVPNZero-Trust ConnectivityAutomated TestingSecrets ManagementConfiguration DataResource Inventory

Industry Keywords

Cloud InfrastructureSite Reliability EngineeringHigh-Performance ComputingSecurity MonitoringAutomated Control Evidence

Tech Stack

Tools & technologies

AWSCloudDNSFirewallsGoogle Cloud PlatformGrafanaLinuxPython

About the role

Key responsibilities & impact

Define, implement, and maintain security baselines for cloud and Linux platforms
Own AWS and Google Cloud platform security controls, guardrails, configuration, and logging
Design and enforce least-privilege access across cloud accounts, Linux systems, and internal services
Secure machine image pipelines through hardening, vulnerability scanning, patching, automated testing, releases, and rollback
Own identity and access management, secrets lifecycle, certificate lifecycle, and automated provisioning/deprovisioning
Translate security requirements into continuous automated compliance checks
Maintain resource inventory, configuration data, control evidence, exception reporting, and finding remediation
Define service health indicators and service-level objectives
Engineer automated recovery, self-healing, backups, restoration, and disaster recovery
Lead availability and security incident response, communication, follow-up, and blameless post-incident reviews
Own observability architecture, including metrics, logs, retention, access, AWS Managed Grafana dashboards, and actionable alerting
Design and operate secure networking including segmentation, DNS, TLS, routing, firewalls, VPN, and zero-trust connectivity
Lead migration of legacy cloud workloads and retirement/consolidation of unsupported or duplicative services
Own cloud and high-performance computing cost visibility, attribution, budgets, spend alerts, and resource guardrails
Write, test, and maintain platform and security automation in Python or another general-purpose language
Lead infrastructure and code reviews, mentor engineers, document systems, and promote shared ownership
Collaborate with nuclear and non-software engineers and explain security requirements in practical terms
Evaluate build-versus-buy decisions and favor simple, maintainable, standard technologies

Requirements

What you’ll need

Bachelor’s degree in computer science, engineering, physics, mathematics, or a related technical field, or equivalent practical experience
5+ years of relevant experience in platform, infrastructure, cloud, security, site reliability engineering, or a related field
Experience designing, securing, and operating production cloud infrastructure
Strong AWS experience
Strong Linux systems experience, including administration, hardening, and troubleshooting
Experience with infrastructure automation, including infrastructure as code, configuration management, and programming or scripting
Experience implementing platform security controls across access management, network security, secrets management, vulnerability management, and security monitoring
Experience designing and operating monitoring, recovery, and incident-response capabilities for production systems
Demonstrated ability to design maintainable infrastructure and make sound technical tradeoffs involving security, reliability, performance, cost, and complexity
Knowledge of networking fundamentals: DNS, TLS, routing, firewalls, segmentation, and remote access
Knowledge of platform security principles, including least-privilege access, identity and access management, secrets management, vulnerability management, and defense-in-depth
Ability to translate security, reliability, and operational requirements into practical, automated technical controls
Ability to use monitoring, logging, metrics, and service health indicators to identify, diagnose, and improve security and reliability issues
Ability to assess technical risk, prioritize remediation, and drive issues to sustainable resolution
Ability to communicate clearly during incidents and keep stakeholders informed of impact, status, and resolution
Ability to take operational ownership of systems through their full lifecycle, including testing, documentation, and retirement
Excellent written and verbal communication with technical and non-technical audiences
Ability to select simple and proportionate designs and explain build-versus-buy tradeoffs
Some travel may be required for workshops and project assistance
Occasionally requires working weekends, schedule flexibility, and extended hours for launch and critical project timelines
Must be authorized by the Department of Energy to access Part 810-controlled information
Desired qualifications such as Google Cloud, cloud cost management, high-performance computing, container security, self-hosted engineering services, vulnerability management, automated control evidence, scientific or engineering computing support, and an advanced degree are desirable only

Benefits

Comp & perks

Competitive compensation packages
Medical, dental and vision benefits for employees and their dependents
Paid Vacation
401(k)
Pre-tax health insurance, dependent care, and commuter benefits (FSA)