AWS CloudOps Engineer

Woongjin•Plano, TX

About The Position

WOONGJIN, Inc. is seeking a Senior CloudOps Engineer with over 6 years of experience in operating carrier-grade AWS and hybrid cloud platforms. This role supports telecom, data engineering, and high-throughput network workloads, with a specialization in AWS-on-prem integration, private networking, secure data movement, and cost-controlled production operations. The engineer will be responsible for designing and operating hybrid AWS + on-prem architectures, building secure VPC environments, supporting telecom data pipelines, owning production compute platforms, implementing network security, building high-availability designs, leading incident response, automating infrastructure, and implementing observability. Cost control and disaster recovery planning are also key aspects of this role.

Requirements

6+ years of experience operating carrier-grade AWS and hybrid cloud platforms
Specialized in AWS–on-prem integration, private networking, secure data movement, and cost-controlled production operations
Experience with AWS & Platform Stack: EC2, Auto Scaling, ECS, EKS, Lambda
Experience with AWS Networking: VPC, Transit Gateway, PrivateLink, ALB, NLB, Route 53, VPN, Direct Connect
Experience with AWS Storage & Databases: S3, EBS, EFS, Glacier, RDS, Aurora, DynamoDB
Experience with AWS Security & Management: IAM, KMS, Secrets Manager, GuardDuty, CloudTrail, Config
Experience with Infrastructure as Code: Terraform, CloudFormation
Experience with CI/CD: GitHub Actions, Jenkins
Experience with Linux, Bash, networking, firewalls, SFTP, private routing
Data engineering related experience, such as AWS Glue, AWS Redshift, AWS EMR, Athena area exp.

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