Data Engineer

IBM DataPower Engineer – Mainframe Modernisation (Contract)

We’re recruiting for an experienced IBM DataPower 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 DataPower 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 DataPower 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 GatewayScript 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 DataPower Gateway
  
  
• Proven mainframe integration experience (CICS, IMS Connect, MQ, CTG)
  
  
• Deep knowledge of API security, XSLT and GatewayScript
  
  
• Experience with API management platforms and DevOps 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 DataPower specialist looking to deliver impactful mainframe modernisation work within a high-profile programme