Senior Platform Engineer

Senior Platform Engineer (AWS / Kubernetes) Remote (United States) Security Journey is hiring a Senior Platform Engineer to help scale and operate the platform behind our secure coding training products used by engineering organizations worldwide. This is a hands-on role for an engineer who enjoys owning production systems, improving developer experience, and bringing order to fast-moving environments. You’ll help run the daily platform operation while driving long-term improvements in reliability, standardization, automation, and cost efficiency. We are a remote-first company with an office in Apex, NC for optional in-person collaboration. What You’ll Do Own day-to-day platform operations across AWS infrastructure and Kubernetes environments. Improve reliability, scalability, and performance of systems supporting our learning platform. Operate and evolve multiple EKS clusters across production and non-production environments. Build internal self-service tooling and engineering guardrails that help developers ship safely and independently. Improve CI/CD workflows using GitHub Actions and GitOps practices with ArgoCD. Drive observability improvements using DataDog, including dashboards, alerting, and incident response readiness. Partner with software engineers, QA, product, and security teams to remove friction and increase delivery velocity. Lead infrastructure changes end-to-end using Terraform and modern IaC practices. Reduce operational toil through automation, standardization, and thoughtful platform design. Participate in an on-call rotation focused on ownership, reliability, and continuous improvement. Mentor teammates through collaboration, code review, and operational best practices. Our Environment We run a modern cloud-native stack with room to improve and meaningful ownership opportunities. Infrastructure & Platform AWS Kubernetes / EKS Terraform ArgoCD GitHub Actions DataDog Data & Messaging PostgreSQL Redis Kafka Languages & App Stack Go Python Ruby React What We’re Looking For 5+ years of experience in Platform Engineering, DevOps, SRE, or related infrastructure roles. Strong hands-on experience operating production workloads in AWS. Strong Kubernetes experience (EKS preferred). Experience managing infrastructure with Terraform or equivalent IaC tooling. Experience building or owning CI/CD systems. Strong troubleshooting skills across networking, containers, distributed systems, and production incidents. Ability to balance immediate operational needs with long-term engineering improvements. Strong written communication and comfort working in a remote-first environment. U.S. citizenship and U.S.-based residency. Nice to Have Experience with GitOps workflows (ArgoCD preferred). Experience with Datadog or modern observability platforms. Experience supporting SOC 2 or regulated environments. Experience with Kafka, PostgreSQL, or Redis in production. Programming experience in Go or Python. Experience building internal developer platforms or self-service tooling. What Success Looks Like in Your First Year Become a trusted owner of day-to-day platform operations. Reduce interruptions through automation and better platform workflows. Improve deployment consistency and developer self-service. Strengthen reliability, alerting, and incident readiness. Help modernize legacy areas while keeping delivery fast and pragmatic. About Security Journey Security Journey helps organizations build secure software through practical, developer-focused application security training. Our platform includes foundational through advanced secure coding content across 11 languages and 7+ technology areas, with hands-on exercises, videos, and interactive sandbox environments that help teams build lasting security habits.