Mainframe CICS Specialist

LocationLondon, United Kingdom# Mainframe CICS Specialist at N Consulting LtdLocationLondon, United KingdomSalary£300 - £350 /dayJob TypeContractDate PostedMarch 2nd, 2026Apply Nowob Title: Mainframe CICS Resource Location: London, UK (Hybrid) Work Mode : Hybrid (3 Days from Office) Contract Role: 6 months Industry: Banking / Financial ServicesRole Overview We are seeking an experienced Mainframe CICS Specialist to support critical test environments that enable the delivery of mobile and online banking features to customers. This role sits at the intersection of traditional mainframe systems and modern cloud/API platforms, ensuring seamless integration, stability, and performance across environments.Key Responsibilities Mainframe Environment Support Provide expert support for mainframe-based test environments. Troubleshoot and resolve issues related to IBM CICS, batch jobs, and system interfaces. Ensure high availability and stability of CICS regions and associated services.API & Integration Support Support services exposed via IBM z/OS Connect. Collaborate with integration teams managing IBM DataPower Gateway. Investigate and resolve cross-platform issues involving mainframe, middleware, and cloud systems.Database & Data Support Work with IBM Db2 including SQL queries, troubleshooting locks, and performance analysis. Support test data creation, refresh, and masking activities.Cloud & Cross-Platform Collaboration Coordinate with teams using Amazon Web Services. Understand API flows from cloud to mainframe systems. Troubleshoot end-to-end integration failures.Automation & DevOps Develop automation scripts using Python and Shell scripting. Support CI/CD processes (e.g., GitLab pipelines). Implement environment stability and monitoring best practices.Documentation & Communication Produce detailed technical documentation and issue logs. Provide regular status updates to stakeholders. Collaborate with developers, infrastructure engineers, and project managers.Required Skills & Experience Strong hands-on experience with: CICS Webservices (SOAP/REST) z/OS Connect Enterprise Edition DB2 and SQL JCL and batch processing Experience in mainframe transaction management and debugging tools. Understanding of API integration and middleware architecture. Exposure to AWS cloud environments. Automation experience using Python or Shell scripting. Strong analytical and problem-solving skills. Excellent verbal and written communication skills. Ability to work under pressure in a fast-paced banking environment.Preferred Experience Experience in Banking or Financial Services. Knowledge of API security and performance tuning. DevOps mindset with CI/CD pipeline exposure. Experience working in Agile delivery models.What We're Looking For Proactive and solution-oriented mindset. Ability to manage multiple priorities effectively. Strong collaboration skills across distributed technical teams. Ownership and accountability for environment stability.Opportunity to work on business-critical banking platforms. Exposure to modern API and cloud integration within a mainframe ecosystem. High-impact role supporting customer-facing digital banking services.