Accounting Systems Implementation Expert (Banking) Miejsce pracy: Warszawa Recruitment for Our Client, a dynamically growing bank operating in an international environment, is looking for an Accounting System Implementation Expert to join its Accounting Department. This role is key to one of the largest and most strategic projects within the bank – the preparation and implementation of a new core banking / accounting system. Your responsibilities Actively participate in defining accounting requirements for the new system, including: chart of accounts, accounting schemes, accounting treatment of banking products. Cooperate closely with IT teams and the system vendor Support the design of accounting for banking products, treasury, back-office operations, payment settlements, and reporting. Review and provide accounting and reporting opinions on new banking products. Prepare specifications, participate in key project decisions, and support system testing and validation. Identify system issues, report defects, and recommend improvements. Employer requirements Several years of experience in banking accounting. Strong understanding of banking operations, products, accounting records, reporting, and regulatory requirements. Experience in accounting or core banking system implementations or major system changes. Hands-on, able to independently define solutions and share expertise. Comfortable working in a project-driven, dynamic environment. Acts as a true business partner, supporting Finance, IT, and project teams, not just executing tasks. Very good knowledge of the Polish Accounting Act (UoR) and IFRS/MSSF. Solid understanding of accounting for banking products, treasury, and financial and regulatory reporting. Fluent in English (spoken and written), enabling effective work in an international environment. Demonstrates a high level of ownership, responsibility, and confidence in decision-making. What employer offers Participation in a large-scale, strategic project within a growing bank (new products, new customer segments, dynamic growth). Real influence on how the bank’s accounting system will function for years to come. Stable, long-term employment. Hybrid working model (3 days from the office). Attractive salary and a comprehensive benefits package. A role designed for professionals who enjoy projects, development, and real challenges. Benefits sharing the costs of sports activities private medical care sharing the costs of foreign language classes sharing the costs of professional training & courses life insurance remote work opportunities flexible working time corporate products and services at discounted prices dental care retirement pension plan