Haist S

DevOps

Self Employed

Apr 2025 - Present • 1 yr 2 mos

Sole owner of the cloud and platform infrastructure, responsible for designing, building, and operating a cloud-native platform from scratch on AWS, with end-to-end accountability from architecture decisions to production operations. Key achievements include: Designed and implemented AWS infrastructure using Infrastructure as Code (IaC) and containers, ensuring high availability, scalability, and operational consistency. Architected and owned CI/CD pipelines using GitHub Actions and ArgoCD, introducing caching and pipeline optimizations that accelerated deployment workflows by approximately 70%. Defined and managed all Kubernetes manifests using Helm, standardizing, versioning, and governing platform resources across environments. Introduced Karpenter and kubecost for intelligent node provisioning and autoscaling, optimizing infrastructure utilization and reducing operational costs. Designed and deployed a Zero Trust SASE architecture with Netbird, decentralizing team access to infrastructure while reducing security and operational overhead for engineering leadership. These initiatives resulted in faster development cycles, measurable cost savings, improved platform reliability, and clear ownership over the entire AWS environment. • Designed and maintained cloud-native infrastructure using Terraform and Kubernetes. • Developed reusable Terraform modules to standardize infrastructure provisioning across engineering teams. • Standardized Helm Charts and deployment workflows to improve operational consistency and deployment reliability. • Implemented GitOps workflows using Argo CD for automated deployments and environment management. • Built and maintained CI/CD pipelines supporting scalable and reliable software delivery. • Improved observability using Prometheus, Grafana, and centralized logging solutions. • Collaborated with development teams to troubleshoot production issues and optimize platform reliability. • Created technical documentation and operationa

SRE / DevOps Engineer

NTT DATA • Full time

Nov 2021 - Apr 2025 • 3 yrs 5 mos

Managed AWS infrastructure and Kubernetes clusters supporting production systems. Automated deployment pipelines and operational workflows across cloud environments. Improved system reliability through monitoring and observability strategies using CloudWatch, Splunk, and Grafana. Supported troubleshooting and incident response activities for distributed systems.