Intermediate - Tier AWS Administrator; Enterprise Automation & TWS

Description

We are seeking an AWS Administrator to support the day-to-day operations, security, and performance of our AWS cloud infrastructure while managing enterprise-level workload scheduling and automation through Tivoli/IBM Workload Scheduler (TWS/IWS). This role is hands-on and operationally focused, requiring strong troubleshooting skills, disciplined execution, and the ability to support business-critical batch and cloud-native workflows.

The ideal candidate has strong AWS administration experience, a clear grasp of workload automation platforms, and the ability to operate effectively in a production enterprise environment with minimal supervision.

Maintain the health, security, and performance of AWS environments while ensuring reliable execution of automated job scheduling workflows using TWS.

• Provision, configure, and maintain AWS resources including EC2, S3, IAM, and VPCs in alignment with the AWS Well-Architected Framework.
• Perform routine system maintenance, patching, and configuration updates across cloud environments.

• Operate and support the TWS/IWS platform, including job stream monitoring, dependency management, and agent health checks.
• Ensure reliable execution of daily and intraday production workloads.

• Enforce least-privilege access controls using AWS IAM.
• Monitor and remediate security findings using tools such as AWS Security Hub.
• Support audit and compliance requirements related to cloud infrastructure and automation platforms.

• Triage, diagnose, and resolve incidents involving AWS infrastructure and failed or delayed scheduling batches.
• Escalate complex issues appropriately and participate in root-cause analysis efforts.

• Identify performance bottlenecks and inefficiencies related to cloud resource usage and job throughput.
• Implement auto-scaling, scheduling adjustments, or script improvements to improve performance and control costs.

• Maintain, test, and document backup and disaster recovery strategies for AWS resources and TWS databases.
• Participate in disaster recovery exercises and validate recovery procedures.

• Ability to obtain and maintain Public Trust
• All candidates supporting the CMS programs must have lived in the United States at least three (3) out of the last five (5) years prior in order to be considered.

• Bachelor's degree in computer science, Information Technology, or a related field, or equivalent professional experience.

• 4+ years of experience in IT operations or infrastructure support roles.
• At least 1 years of hands-on AWS administration experience with limited supervision.

• Proficiency in Linux/Unix environments.
• Strong scripting skills using Python and/or Bash.
• Experience with automation and configuration tools such as Ansible or AWS Cloud Formation.

• AWS Certified Sys Ops Administrator - Associate (Encouraged)

• Understanding of TWS distributed architecture, including:
  • Master Domain Manager (MDM):
    Central scheduling authority and database.
  • Dynamic Workload Console (DWC):
    Web-based interface for job design and monitoring.
  • Agents:
    Including Fault-Tolerant Agents (FTA) capable of running jobs during temporary MDM communication outages.

• Deploy and manage TWS agents on EC2 instances to execute scripts and applications.
• Support cloud-native workflow triggers using AWS Lambda or Step Functions integrated with TWS.
• Manage file-based dependencies leveraging Amazon S3.

• Create, modify, and maintain job definitions, calendars, and scheduling resources.
• Troubleshoot job failures and delays by analyzing logs and predecessor/successor relationships.
• Perform TWS patch upgrades and maintain integrations with enterprise monitoring tools such as IBM Tivoli Monitoring.

• Clear operational discipline with attention to detail.
• Ability to work effectively in a production support…