Senior Platform Engineer: Cloud, DevSecOps & AI Infra

540 Arlington (VA)

Hybrid

USD 180,000 - 240,000

Full time

2 days ago

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Job summary

540 is seeking a Senior Platform Engineer to design, secure, and modernize cloud infrastructure and DevSecOps platforms enabling AI capabilities across mission-critical environments throughout the DoD. You will lead architectural decisions, drive secure CI/CD, and mentor delivery teams while ensuring compliant, repeatable environments.

The role requires DoD clearance, 10+ years of platform engineering experience, and a Bachelor's degree.

Qualifications

10+ years of relevant professional experience in platform engineering, cloud infrastructure, DevSecOps, or related technical disciplines.
Deep hands-on experience designing and improving secure CI/CD pipelines using Jenkins, GitLab, Artifactory, and related technologies.
Strong expertise in secure software delivery and supply-chain security, including automated vulnerability scanning, artifact signing, provenance, attestation, and policy-as-code.
Proven experience with Docker, Kubernetes, and container orchestration, including establishing secure deployment and runtime standards across environments.
Advanced experience with Terraform, infrastructure as code, and configuration management to provision, maintain, and reliably recreate cloud infrastructure.
Experience designing, securing, modernizing, and troubleshooting complex cloud infrastructure (networking, API management, microservices).
Working knowledge of RMF, STIG compliance, vulnerability management, and secure DevOps practices within DoD IL2 through IL5/IL6 environments.
Experience implementing IAM solutions, including ADFS/SAML, least-privilege, and secure authentication/authorization.
Experience implementing infrastructure monitoring, logging, alerting, incident response, and reliability practices.
Experience supporting AI-enabled workloads or LLM foundation model testing with proper security and operations considerations.
Demonstrated technical leadership, architectural decision-making, and establishing reusable engineering standards.
Strong client-facing communication and advisory skills, with ability to explain trade-offs and set realistic timelines.
Must have or obtain DoD-approved IAT Level II certification within 30 days of hire.
Must obtain Associate/Professional cloud certifications (Azure, AWS, GCP) within 30 days of hire.

Responsibilities

Design, secure, and maintain scalable cloud infrastructure and platform services for AI capabilities in DoD environments (IL2–IL6).
Architect and improve secure CI/CD pipelines with Jenkins, GitLab, Artifactory; include testing, vulnerability scanning, signing, and policy-as-code.
Establish container orchestration and runtime standards using Docker and Kubernetes for secure deployments.
Develop IaC and configuration management using Terraform to automate provisioning and reproducible environments.
Design, modernize, and manage cloud infrastructure including networking, gateways, API management, and microservices.
Implement security controls, RMF/STIG compliance, identity management, and least-privilege access.
Establish observability, monitoring, logging, incident response, and reliability practices.
Support AI-native workloads and foundation model testing with platform security and data protection.
Develop reusable platform architectures and engineering standards; advise government stakeholders.
Mentor engineers and guide technical decisions to improve delivery reliability and efficiency.