At S5, we offer a leading-edge compensation package that includes top-tier salaries, up to 25% profit sharing into a qualified retirement account, flexible PTO, and company paid medical, vision and dental premiums for you and your family. You'll join a team of innovative engineers committed to innovation and excellence. We prioritize professional growth and team cohesion through technical trainings, team dinners, retreats, and an annual fully sponsored off-site. Our culture is built to support your career development, personal well-being, and long-term success. Position Description: Own the reliability, security, and velocity of our AWS-based platforms. You'll design, build, and operate the cloud foundation (networking, IAM, CI/CD, observability, runtime) that lets product teams ship fast, safely, and cost-effectively. Platform Architecture: Design and evolve multi-account AWS Landing Zones (Control Tower/SCPs), VPC architectures, and secure networking (Transit Gateway, PrivateLink, VPC Endpoints, Route 53, ALB/NLB). Infrastructure as Code: Build everything as code using Terraform/OpenTofu or AWS CDK; enforce drift detection, reviews, and automated testing. Runtime & Containers: Operate EKS/ECS and Lambda platforms; define golden images, Helm charts, and deployment patterns (blue/green, canary). CI/CD: Own pipelines (GitLab CI/Jenkins/GitHub Actions/Argo CD) for infra and app delivery; implement reusable templates and policy checks. Observability: Implement metrics, logs, and traces (CloudWatch, OpenSearch, Prometheus/Grafana, OpenTelemetry); set SLOs, SLIs, alerts, and runbooks. Security & Compliance: Apply least-privilege IAM, key management (KMS), secrets (SM/SSM), GuardDuty/Inspector controls; support ATO/IATT, FedRAMP/DoD SRG, STIG-aligned baselines. Data/Services Enablement: Provide managed patterns for S3, DynamoDB/RDS, API Gateway, Step Functions, SQS/SNS, OpenSearch, CloudFront. Reliability & Ops: Drive capacity planning, cost optimization, backup/DR, chaos/ game days, and incident response with postmortems that fix root causes. Developer Experience: Build self-service portals, templates, and docs; streamline onboarding and reduce time-to-first-deploy.