Workload Scheduler Administrator / Infrastructure Engineer

We are seeking a highly skilled (3-5+ years dedicated experience administering) IBM Workload Scheduler (IWS) Administrator to manage, maintain, and optimize our Partner's enterprise batch scheduling infrastructure. The successful candidate will be responsible for the end-to-end administration of the IWS environment hosted primarily on Red Hat Enterprise Linux (RHEL). This role requires a strong blend of IWS expertise, Linux system administration, and scripting to ensure high availability and seamless execution of critical business workloads.



Responsibilities

• Administer Production IBM Workload Scheduler (aka Tivoli Workload Scheduler) environment with 28,000 unique daily jobs across about 350,000 daily job runs, 44 servers, and three other change control environments


• Administer, install, configure, and patch/upgrade IWS components (Master Domain Manager, Dynamic Agents, Dynamic Pool, Dynamic Workload Console)


• Work with Product Owner on communicating work streams in Jira


• Manage job promotions with Workload Application Template-based process, ensuring safety checks for platform stability assessed on each job promotion


• Manage change control of four (4) separate change control environments, enforce change control standards and policies


• Maintain and continuously promote 99.17% Production platform uptime per calendar month (uptime calculated excluding planned change control outages, planned weekly maintenance windows) using SOP’s, DevOps tools, and disciplined change control across change control environments


• Orderly communication of platform-impacting news to user community of about 500 developers and data engineers


• Production consists of 44 servers between MDM, DWC, and agents


• Resolve complex job failures, performance bottlenecks, agent issues, and infrastructure issues


• Advise on complex job scheduling design questions that less experienced scheduling support team


• Monitor the health of the scheduler environment, manage database maintenance, and perform backup/disaster recovery, and monthly failovers


• Define and maintain security policies, user authorizations, and authentication for the DWC


• Respond to Cybersecurity vulnerability assessments and PCI (and other regulatory) audit inquiries


• Design and implement Ansible automation and self-healing mechanisms to continuously reduce unplanned outages


• Coordinate with offshore performing SOP’s during non-working hours


• Scripting Python with IWS REST API

Requirements

• US Citizenship


• Strong experience with IBM Workload Scheduler architecture, especially Dynamic Workload Broker, V10.1+, high availability of MDM’s managing Fault Tolerant Agent and Dynamic Agent agent architectures


• Strong conceptual understanding of Master Domain Manager (MDM), Backup MDM (BMDM), Dynamic Workload Console (DWC), Fault Tolerant Agent (FTA), Dynamic Agent (DA)


• Strong grasp of conman CLI to monitor and control production plan, check job/job stream/resource status


• Strong grasp of composer CLI to define, modify and extract scheduling objects


• Strong grasp of planman CLI to control pre-production plan and GUI mirroring


• Strong grasp of lifecycle of daily production planning process, phases of JNextplan/FINAL


• Proficiency in navigating the DWC web-based GUI to monitor workloads, manage user access security, and define scheduling objects


• Experience installing IWS components, applying Fix Packs, and Interim Fixes


• Troubleshooting with logs under TWSDATA/stdlist, adjusting trace level for netman, batchman, writer, mailman, etc.


• Strong experience with IBM WebSphere Liberty


• Strong grasp of reading messages.log, traces.log, FFDC logs


• Strong grasp of configuring JVM heap sizes


• Strong grasp of configuring tracing scope, tracing levels, tracing retention


• Strong experience with Red Hat Enterprise Linux 8+


• Deep familiarity with bash/shell commands for text processing (for example, grep, awk, sed), file manipulation, and system navigation


• Ability to manage, start, stop, and troubleshoot SystemD services using systemctl and journalctl for IWS agents and MDM


• Managing user accounts, groups, service accounts and deep knowledge of Linux file permissions (chmod, chown, ACL on local filesystems and NFS)


• Ability to monitor system performance using tools like top, htop, vmstat, iostat, and sar to troubleshoot bottlenecks and platform unresponsiveness


• Understanding of Logical Volume Manager (LVM) and filesystem usage


• Checking TCP port availability, firewall rules (firewalld/iptables), and connectivity between MDM and Dynamic Agents using netstat, ss, ping, curl, etc.


• Managing SSL/TLS certificates, private keystores, public truststores, and working with Certificate Authority


• Strong experience with scripting (Bash Shell, Python, etc.) for automation


• Understanding of networking principles


• Understanding of basic Oracle database administration, enough to troubleshoot with DBA’s to prove when an issue is in Oracle


• Understanding of basic SQL to query job metadata


• Understanding of checking database connectivity


• Understanding of AWS cloud infrastructure


• Experience with using secrets manager (CyberArk PPM, Hashicorp Vault, or similar)

About Us

For more than 20 years, NewGen Technologies has solved our clients’ toughest IT challenges with integrity, security, and outstanding service by delivering both technology and talent. We have helped secure borders, have used artificial intelligence (AI) to fight terror, aided the identification of criminals, and have helped to prevent crime through the introduction of biometrics. Our team of Highly Cleared Specialists have hard-to-find skills and expertise in a wide spectrum of technologies to provide solutions that transform business processes and solve problems of national significance. #CJ