Czym będziesz się zajmować? Assuming key responsibility for the incident resolution workflow and deep problem investigation to maintain system reliability.Conducting morning checks (starting at 6:00 a.m.) to confirm the successful conclusion and output integrity of overnight data loads.Actively supporting team members in quality assurance cycles, system go-lives, and ongoing live operations.Managing the integrity of the test environment segment that directly replicates the production platform. Creating, reviewing, and updating vital system documentation. Ensuring all operating procedures strictly adhere to established legal and regulatory frameworks. Efficiently handling and resolving all inquiries and requests related to the daily performance of the products.

Kogo poszukujemy? Willingness to work in a hybrid setup, requiring office presence a minimum of 1–2 times per month (Łódź, Poland)Highly developed proficiency in the architecture, implementation, and maintenance of mainframe applications. Exceptional mastery of z/OS, COBOL, and DB2 is mandatory.Expert-level capability with core mainframe development and deployment utilities, including: COBOL compilers, JCL/Control Cards, workload schedulers (OPC), DB2 infrastructure, SQL querying, DB2 Catalog Manager Proven track record working within flexible methodologies (Scrum, Kanban) and using collaborative platforms (specifically Jira and Confluence).Language Fluency: Required fluency (both written and verbal) in German and English.