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Enterprise middleware, built to keep messages moving.

Nexus Integrations Consulting designs, builds and supports IBM MQ, Kafka and hybrid messaging across z/OS, IBM i and every distributed platform — secure, scalable and ready for mission-critical work.

Messages flowing between z/OS, IBM i, Linux and AWS through a central queue manager z/OSCICS · QSG IBM iAS400 Linux / AIXRDQM · MI AWSCloud · Kafka Queue managerIBM MQ

Our specialised services

Seamless connectivity and high-performance middleware for the modern enterprise.

Architecture design

High-throughput, low-latency messaging architectures across z/OS, IBM i, Linux, Windows, AIX and AWS. Resilient, scalable designs for IBM MQ, Kafka and hybrid environments — a future-ready foundation for mission-critical workloads.

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Integration strategy and modernisation

Strategies that unify legacy mainframe systems with modern cloud platforms. Whether you’re connecting z/OS CICS, AS400 applications or distributed microservices, we keep on-prem, hybrid and AWS environments talking — with less complexity and more agility.

Learn more about integration strategy and modernisation

Embedded engineering support

Skilled middleware engineers who join your team for short (1–6 months) or long (1–2 years) engagements. They support daily operations, projects, migrations, HA builds and platform-specific work as an extension of your team.

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Skills assessment and enablement

We assess your internal teams across all platforms, find the skill gaps that put operations at risk, and run tailored training so your staff can manage, troubleshoot and tune IBM MQ, Kafka and enterprise messaging with confidence.

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MQ tooling, automation and AI-enhanced operations

Streamlined operations with MQ Explorer, MQ Console, Ansible, CSQUTIL and RFHUTIL. AI-enhanced diagnostics and automation simplify administration, speed up troubleshooting and improve reliability on distributed and z/OS systems.

Learn more about mQ tooling, automation and AI-enhanced operations

High-availability and advanced builds

We design, build and support complex high-availability environments tailored to your enterprise, so your messaging layer is fault-tolerant and ready for continuous operations.

Learn more about high availability
  • MQ ClusteringWorkload balancing and routing across queue managers
  • Queue Sharing GroupsShared queues on z/OS with the Coupling Facility
  • Multi-instance MQActive/standby queue managers on shared storage
  • RDQMReplicated data queue managers for Linux HA and DR

End-to-end support and migration

Enterprise resilience through proactive architecture, seamless upgrades and rigorous health checks.

Legacy migration and strategy

Secure, scalable paths from legacy systems to modern cloud integrations, with minimal downtime and zero data loss. We manage upgrades, patching and version alignment for IBM MQ, Kafka and supporting middleware — whether you’re leaving legacy queues, moving data centres, or shifting workloads across z/OS, AS400, Linux, Windows, AIX or AWS.

Learn more about legacy migration and strategy

Performance tuning and health checks

We optimise messaging across mainframe, midrange and distributed systems for maximum throughput and stability. Rigorous audits and stress tests find bottlenecks before they hit your operations, deep-dive root-cause analysis resolves failures, and regular health checks keep you ready for peak demand.

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Enterprise security and compliance

We perform comprehensive audits and security hardening across z/OS, AS400 and distributed platforms, building the security layers and health checks that auditing and high-performance messaging demand.

Our assessments uncover risks, misconfigurations and vulnerabilities, and help you align with industry standards and regulatory requirements while keeping operations intact.

  • Middleware health checks
  • Security audits and hardening
  • Skills assessment
Learn more about security audits

Book a strategy session or audit

Tell us about your environment and what you need. We’ll reply within one business day to arrange a call.