AWS CloudOps Engineer

Woongjin, Inc•Plano, TX

About The Position

Senior CloudOps Engineer with 6+ years of experience operating carrier-grade AWS and hybrid cloud platforms supporting telecom, data engineering, and high-throughput network workloads. Specialized in AWS–on-prem integration, private networking, secure data movement, and cost-controlled production operations. Designed and operated hybrid AWS + on-prem architectures using Site-to-Site VPN, Direct Connect, Transit Gateway, and private routing for telecom data flows Built secure, isolated VPC environments for multiple customers using VPC peering, PrivateLink, NLB/ALB, and Route 53 private DNS Supported telecom data pipelines (4G/5G RAN, KPI feeds, CDRs) ingesting TB-scale data into AWS via SFTP, private links, and batch pipelines Owned production EC2 and container platforms (ECS/EKS) running analytics, monitoring, and customer-facing services Implemented network-level security using Security Groups, NACLs, firewall rules, private subnets, and endpoint policies Built high-availability and failover designs across Availability Zones and regions for customer-critical services Led incident response and RCA for network failures, SFTP outages, latency issues, and data pipeline disruptions Automated infrastructure using Terraform and CloudFormation for VPCs, routing, IAM, and service deployments Implemented end-to-end observability for network, compute, and data pipelines using CloudWatch, Prometheus, and centralized logging Controlled AWS and data-transfer costs through right-sizing, Savings Plans, S3 lifecycle policies, and cost dashboards Designed backup and DR for both cloud and hybrid workloads using snapshots, replication, and cross-region restores

Requirements

6+ years of experience operating carrier-grade AWS and hybrid cloud platforms supporting telecom, data engineering, and high-throughput network workloads.
Specialized in AWS–on-prem integration, private networking, secure data movement, and cost-controlled production operations.
EC2, Auto Scaling, ECS, EKS, Lambda
VPC, Transit Gateway, PrivateLink, ALB, NLB, Route 53, VPN, Direct Connect
S3, EBS, EFS, Glacier
RDS, Aurora, DynamoDB
IAM, KMS, Secrets Manager, GuardDuty, CloudTrail, Config
Terraform, CloudFormation, GitHub Actions, Jenkins
Linux, Bash, networking, firewalls, SFTP, private routing

Responsibilities

Designed and operated hybrid AWS + on-prem architectures using Site-to-Site VPN, Direct Connect, Transit Gateway, and private routing for telecom data flows
Built secure, isolated VPC environments for multiple customers using VPC peering, PrivateLink, NLB/ALB, and Route 53 private DNS
Supported telecom data pipelines (4G/5G RAN, KPI feeds, CDRs) ingesting TB-scale data into AWS via SFTP, private links, and batch pipelines
Owned production EC2 and container platforms (ECS/EKS) running analytics, monitoring, and customer-facing services
Implemented network-level security using Security Groups, NACLs, firewall rules, private subnets, and endpoint policies
Built high-availability and failover designs across Availability Zones and regions for customer-critical services
Led incident response and RCA for network failures, SFTP outages, latency issues, and data pipeline disruptions
Automated infrastructure using Terraform and CloudFormation for VPCs, routing, IAM, and service deployments
Implemented end-to-end observability for network, compute, and data pipelines using CloudWatch, Prometheus, and centralized logging
Controlled AWS and data-transfer costs through right-sizing, Savings Plans, S3 lifecycle policies, and cost dashboards
Designed backup and DR for both cloud and hybrid workloads using snapshots, replication, and cross-region restores