We are seeking an experienced COBOL / Mainframe Developer to join our team and play a pivotal role in supporting and enhancing business-critical legacy systems within the financial services sector. This is a hands-on position focused on stability, performance, and the continuous evolution of core platforms that power essential operations. You will work with COBOL in IBM z/OS environments, maintaining and optimising high-volume transactional systems with a particular emphasis on employee benefits and retirement fund solutions. In addition to strong production support and troubleshooting responsibilities, this role offers meaningful involvement in modernisation and integration initiatives, helping to connect proven legacy systems with contemporary technologies including APIs, Java, .NET, and cloud platforms. Responsibilities: Maintain and enhance COBOL-based systems supporting critical business functions Analyse business requirements and translate into technical solutions Support produc...