Senior Platform Engineer (AWS / Kubernetes)

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.

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

Required

• 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.