Senior Engineer, Platform Security – Reliability

Job not on LinkedIn

🔥 17 hours ago

🏄 California – Remote

🏄 California – Remote

⏰ Full Time

🟠 Senior

🏗️ Platform Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

👻 Ghost score 12%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Kairos Power

WebsiteLinkedInAll Job Openings

201 - 500 employees

⚡ Energy

🔬 Science

Energy • Science • Engineering

Kairos Power is a mission-driven engineering company focused on delivering clean, affordable, and safe energy through advanced reactor technology. The company specializes in the integrated design, licensing, and demonstration of a fluoride salt-cooled high temperature reactor, known as KP-FHR, which aims to be cost-competitive with natural gas and offers a path to a clean energy system with a near zero carbon footprint. With a focus on innovative engineering and a mission to improve quality of life while protecting the environment, Kairos Power's advanced reactor technology is designed for high availability, performance, and safety, featuring accident-resistant fuel and low-pressure coolant. The technology supports grid resiliency and security by providing dispatchable power, reducing maintenance and lifecycle costs, and enhancing the integration with renewable energy sources.

📋 Description

• 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

• 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

• 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)