Mainframe Engineer

Mainframe Engineer

Hybrid Working – London – 2 days a week on site.

Financial Services

Lorien's leading banking client is looking for a n experienced Mainframe Engineer, this person will support the test environments to enable delivery of features to mobile/online banking customers. The person will have hands-on experience with Mainframe Technologies, along with an understanding of AWS Services

This role is based in London.

This role will be Via Umbrella.

Working in a Hybrid Model of 1 day a week on site.

Key Responsibilities:

• Provide expert support and timely resolution of environment issues focusing on mainframe systems and related infrastructure.
• Work on test data support requirement for the teams within Digital Channels
• Collaborate closely with DataPower and AWS teams to understand integration points and troubleshoot cross-platform dependencies.
• Monitor AWS cloud resources including CloudWatch for logging and alerting, DynamoDB for database management, and AWS Lambda for serverless compute tasks related to project workflows.
• Implement best practices for environment stability, performance tuning, and security compliance.
• Produce detailed technical documentation, status reports, and issue logs for ongoing support and knowledge sharing.
• Communicate effectively with cross-functional teams including developers, infrastructure engineers, and project managers to ensure timely resolution of issues and alignment on priorities.
• Work on automation using but not limited to Python, Shell scripting, and GitLab pipeline.

Required Skills and Qualifications:

• Proven experience in mainframe environments, particularly with CICS webservices, ZOS Connect EE, DB2, and batch processing.
• Strong skills in mainframe transaction management, JCL, and system debugging tools.
• Familiarity with SOAP, WSDL, JSON, and integration patterns such as SOA and RESTful APIs.
• Good working knowledge of AWS services, particularly CloudWatch, DynamoDB, and Lambda, including monitoring, troubleshooting, and optimisation.
• Excellent verbal and written communication skills to effectively articulate technical issues and solutions.
• Ability to work under pressure and manage multiple priorities in a fast-paced environment.
• Strong problem-solving skills and a proactive approach to identifying and resolving issues.

Desirable:

• Python knowledge, Experience with Gitlab pipeline, Improvement/Automation with AI

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