Data Engineer

IBM Data Power Engineer – Mainframe Modernisation (Contract)

We’re recruiting for an experienced IBM Data Power Engineer to support a large-scale mainframe modernisation programme within a complex enterprise environment. This is a contract role, ideal for specialists in secure API integration and legacy-to-digital transformation.

The Role
You’ll design, build and support high-performance integration solutions using IBM Data Power Gateway, exposing core mainframe services as modern APIs. Working across hybrid environments, you’ll bridge z/OS applications with API platforms and cloud-native services, ensuring security, resilience and scalability.

Key Responsibilities

* Design and configure IBM Data Power services (MPGW, XML Firewall, WS-Proxy)

* Expose CICS, IMS, DB2 and MQ services via REST/JSON and SOAP APIs

* Implement API security including OAuth2, JWT, TLS/mTLS and AAA policies

* Deliver XSLT and Gateway Script transformations and schema validation

* Integrate with backend platforms including MQ, Kafka and relational databases

* Support CI/CD automation using SOMA/REST APIs, Jenkins or Ansible

* Ensure high availability, performance tuning and regulatory compliance (e.g. PCI, GDPR)

Required Skills

* Strong hands-on experience with IBM Data Power Gateway

* Proven mainframe integration experience (CICS, IMS Connect, MQ, CTG)

* Deep knowledge of API security, XSLT and Gateway Script

* Experience with API management platforms and Dev Ops automation

* Background in mainframe or legacy system modernisation projects

Contract Details

* Contract role

* Hybrid working

* Competitive day rate

* Initial 6-month engagement

Apply now if you’re a Data Power specialist looking to deliver impactful mainframe modernisation work within a high-profile programme