Presidio, Where Teamwork and Innovation Shape the Future
At Presidio, we're at the forefront of a global technology revolution, transforming industries through cutting-edge digital solutions and next-generation AI. We empower businesses - and their internal customers - to achieve more through innovation, automation, and intelligent insights.
KEY RESPONSIBILITIES
Escalation & Complex Incident Resolution
- Serve as the definitive escalation authority for all P1/P2 incidents across the middleware stack
- Lead war-room bridge calls; drive structured incident resolution with clear action plans and stakeholder communication
- Perform deep-dive root cause analysis (RCA) using heap dump analysis, GC log review, network traces, and vendor diagnostic tools
- Engage IBM and Oracle vendor support (PMR/SR) with detailed diagnostic packages; drive cases to resolution
- Author comprehensive post-incident reports (PIR) with permanent corrective actions, timeline analysis, and SLA impact assessment
- Establish and maintain the escalation runbook library; coach L1/L2 on escalation procedures and decision trees
IBM WebSphere Application Server
- Design and maintain WAS Network Deployment cell topologies, high-availability configurations, and session persistence strategies
- Perform advanced JVM tuning: GC policy selection (gencon, balanced), heap sizing, compressed references, JIT optimization
- Diagnose complex class loader conflicts, memory leaks, thread contention, and connection pool exhaustion using IBM GCMV, IBM Thread and Monitor Dump Analyzer, and Eclipse MAT
- Design and oversee WAS to WebSphere Liberty or OpenShift migration blueprints
- Implement and validate security configurations: LDAP, RACF, SSL/TLS mutual authentication, JAAS, application security policies
- Provide architecture guidance for WAS ND clustering, HTTP server (IHS) plug-in configuration, and WebSphere eXtreme Scale (WXS)
IBM MQ
- Design IBM MQ cluster architectures including full repository, partial repository, and gateway queue managers
- Architect MQ high-availability solutions: MQ multi-instance queue managers (RDQM), MQ HA with NFS/GPFS, MQ on OpenShift
- Troubleshoot MQ cluster routing, message affinity issues, back-out threshold failures, and channel security (TLS/CHLAUTH)
- Implement MQ Advanced Message Security (AMS), TLS mutual authentication, and channel authentication rules
- Diagnose and resolve complex MQ performance bottlenecks: disk I/O saturation, channel congestion, large message handling
- Architect migration path from on-premises MQ to IBM MQ on OpenShift or IBM Cloud Pak for Integration
IBM API Connect
- Architect IBM API Connect v10 deployments on OpenShift: Management, Analytics, Developer Portal, and Gateway subsystem sizing and HA design
- Design API lifecycle governance: version management, rate limiting, OAuth 2.0 / OIDC security schemes, API product publishing
- Troubleshoot complex API policy assembly failures, GatewayScript errors, and DataPower integration issues
- Implement API observability: custom analytics dashboards, alerting, correlation with backend service traces
- Lead API Connect cluster upgrades, certificate rotation procedures, and disaster recovery testing
IBM DataPower Gateway
- Architect multi-domain DataPower deployments for DMZ, internal, and B2B integration patterns
- Design and troubleshoot complex XSLT transformations, GatewayScript policies, Web Service Proxies, and Multi-Protocol Gateways (MPGW)
- Implement advanced security policies: XML threat protection, schema validation, WS-Security, OAuth token enforcement
- Diagnose performance bottlenecks using DataPower probe, latency graphs, and IBM Support Advisor
- Architect DataPower Gateway Operator deployment on OpenShift; manage DataPowerService CR lifecycle
IBM Event Streams (Apache Kafka)
- Architect IBM Event Streams (Kafka) cluster topologies for throughput, fault tolerance, and geo-replication
- Tune broker configurations: replication factor, ISR settings, log retention, consumer group rebalancing, and compaction policies
- Diagnose consumer lag escalations, partition leadership imbalances, under-replicated partition alerts, and ZooKeeper/KRaft quorum issues
- Design Kafka Connect pipelines, Schema Registry integration, and MirrorMaker 2 replication for DR
- Implement Kafka security: mTLS, SASL/SCRAM, topic-level ACLs, and network policies on OpenShift
- Lead Event Streams operator upgrades, topic schema migrations, and Kafka version upgrades on OpenShift
Oracle WebLogic & Service Bus
- Architect Oracle WebLogic Server (WLS) domains: Administration Server, Managed Servers, Cluster configuration, and Node Manager HA
- Design and tune WebLogic JVM parameters: heap, metaspace, GC policy, Work Manager thread priorities
- Diagnose complex WLS issues: stuck threads, slow drains, deployment failures, EJB/JPA performance, JDBC multi-data-source failover
- Architect Oracle Service Bus (OSB) pipeline patterns: message routing, content-based routing, SLA alerting, error handling frameworks
- Troubleshoot OSB proxy service failures, business service timeouts, WS-Security policy mismatches
- Design migration path from Oracle WebLogic/OSB to containerized Java runtimes on OpenShift (Quarkus, Liberty, Helidon)
OpenShift Platform & Middleware Migration
- Lead end-to-end middleware platform migration to OpenShift Container Platform (OCP 4.x)
- Design target-state architecture: Operator-based middleware management (IBM MQ Operator, DataPower Operator, Event Streams Operator, WebSphere Liberty Operator)
- Define namespace strategy, resource quotas, pod disruption budgets, node affinity rules, and storage class selection for stateful middleware
- Establish GitOps-based middleware configuration management using ArgoCD/Tekton pipelines
- Design persistent storage architecture for stateful workloads: OpenShift Data Foundation (ODF), NFS, block storage for MQ, WAS, Kafka
- Implement OpenShift network policy for middleware service mesh, ingress/egress controls, and TLS termination via Routes/Ingress
- Lead containerization of legacy WAS ND workloads using IBM WebSphere Migration Toolkit and Transformation Advisor
- Define migration waves, cut-over strategies, fallback plans, and parallel-run testing frameworks
- Establish observability stack: OpenShift monitoring (Prometheus/Grafana), log aggregation (EFK/Loki), distributed tracing (Jaeger/Zipkin)
Architecture Governance & Advisory
- Serve as the Subject Matter Expert (SME) for all middleware technology decisions within the managed services engagement
- Conduct quarterly architecture reviews: capacity planning, technology currency assessments, EOL/EOS risk reviews
- Define middleware standards, design patterns, integration blueprints, and reference architectures for client organizations
- Drive FinOps discipline for middleware workloads on OpenShift: resource right-sizing, license optimization, cost allocation
- Participate in pre-sales and solution design activities for new managed services engagements
REQUIRED QUALIFICATIONS
Education & Experience
- Bachelor’s degree in computer science, Software Engineering, or equivalent (advanced degree preferred)
- 10+ years of enterprise middleware platform engineering, architecture, and operations experience
- 5+ years of hands-on experience with IBM middleware products (WAS, MQ, API Connect, DataPower, Event Streams) in production environments
- 3+ years of experience with Oracle WebLogic and/or Oracle Service Bus in enterprise-grade deployments
- 3+ years of OpenShift or Kubernetes platform engineering experience including middleware workload containerization
- Demonstrated experience leading P1 incident resolution and RCA for mission-critical middleware platforms
- Proven track record of middleware platform migrations (on-premises to container / cloud)
Technical Depth
- Deep expertise in JVM internals: memory management, GC algorithms, class loading, thread lifecycle
- Proficiency with diagnostic tools: IBM GCMV, Eclipse MAT, IBM Thread and Monitor Dump Analyzer, JProfiler, VisualVM, yourkit
- Strong Linux/Unix systems administration: kernel tuning, network stack, disk I/O performance, security hardening
- Proficiency in scripting: Bash, Python, or Groovy for automation of middleware operations tasks
- Deep knowledge of integration patterns: messaging, pub/sub, API gateway, ESB, event streaming, synchronous/asynchronous patterns
- OpenShift/Kubernetes: Operators, Helm, CRDs, RBAC, network policies, persistent volumes, StatefulSets
- CI/CD and GitOps: Jenkins, Tekton, ArgoCD, GitHub Actions
- Security: PKI/TLS management, OAuth 2.0, OIDC, SAML, Kerberos integration with middleware platforms
PREFERRED CERTIFICATIONS
- IBM Certified Solution Architect – IBM Cloud Pak for Integration
- IBM Certified System Administrator – WebSphere Application Server (Advanced)
- IBM Certified MQ Administrator
- IBM Certified Associate Developer / Administrator – IBM DataPower Gateway
- Oracle Certified Master – Java EE Enterprise Architect or Oracle WebLogic Server
- Red Hat Certified Architect (RHCA) or Red Hat Certified OpenShift Administrator (EX280)
- Red Hat Certified Specialist in OpenShift Application Development
- Certified Kubernetes Administrator (CKA) or Certified Kubernetes Application Developer (CKAD)
- ITIL 4 Strategist or ITIL 4 Managing Professional
BEHAVIORAL COMPETENCIES
- Executive presence: ability to communicate complex technical issues clearly to C-suite and senior stakeholders
- Crisis leadership: calm, decisive, and authoritative during major incidents with high business impact
- Mentorship and knowledge transfer: proactive in upskilling L1/L2 engineers through coaching, shadowing, and documentation
- Strategic mindset: balances tactical operational demands with longer-term platform modernization roadmap
- Vendor management: skilled at driving IBM, Oracle, and Red Hat support organizations toward swift resolution
- Collaborative: works effectively across organizational boundaries (application teams, network, security, infrastructure)
- Commitment to continuous improvement: drives automation, self-healing, and observability maturity initiatives
Your future at Presidio
Joining Presidio means stepping into a culture of trailblazers - thinkers, builders, and collaborators - who push the boundaries of what's possible. With our expertise AI-driven analytics, cloud solutions, cybersecurity, and next-gen infrastructure, we enable businesses to stay ahead in an ever-evolving digital world.
Here, your impact is real. Whether you're harnessing the power of Generative AI, architecting resilient digital ecosystems, or driving data-driven transformation, you'll be part of a team that is shaping the future.
Ready to innovate? Let's redefine what's next-together.
About Presidio
Presidio is committed to hiring the most qualified candidates to join our amazing culture. We aim to attract and hire top talent from all backgrounds, including underrepresented and marginalized communities. We encourage women, people of color, people with disabilities, and veterans to apply for open roles at Presidio. Diversity of skills and thought is a key component to our business success.
At Presidio, speed and quality meet technology and innovation. Presidio is a trusted ally for organizations across industries with a decades-long history of building traditional IT foundations and deep expertise in AI and automation, security, networking, digital transformation, and cloud computing. Presidio fills gaps, removes hurdles, optimizes costs, and reduces risk. Presidio's expert technical team develops custom applications, provides managed services, and enables actionable data insights and builds forward-thinking solutions that drive strategic outcomes for clients globally. For more information visit
Applications will be accepted on a rolling basis.
Presidio has a strong commitment to the community we serve and our employees. As an Equal Opportunity Employer, we strive to have a workforce that includes the community we serve.
Presidio is an Equal Opportunity Employer Disability/Vets. We evaluate qualified applicants without regard to race, color, religion, sex, age, national origin, disability, veteran status, genetic information, and other legally protected categories.
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