Konrad Kwietniewski
Warsaw / Lublin
Summary
Billing professional with several years of experience in international organizations. Experienced in billing operations, reconciliations, contract and rate management, invoice corrections, and working with SAP and AFS. Comfortable working with financial data, resolving discrepancies, and collaborating with Finance, Sales and IT teams. Detail-oriented, analytical and focused on delivering accurate and timely results.
Overview
2
2
Languages
15
15
years of professional experience
Work History
Billing Analyst, EMEA
Warner Bros. Discovery / Discovery Polska Sp. z o.
Warsaw
03.2023 - Current
- Manage end-to-end billing activities for assigned TVN and EMEA customer portfolios.
- Executed billing reconciliations, resolving discrepancies between contracts, rates, billing systems and invoices to ensure accuracy.
- Maintain contractual billing rates, customer data and billing parameters in SAP and internal systems.
- Processed invoice corrections, credit notes and billing adjustments, enhancing billing accuracy and customer satisfaction.
- Coordinate billing and system issue resolution with Sales, Finance and IT.
- Facilitated contract amendments, renewals, KSeF testing and Polish invoicing requirements, ensuring compliance and seamless operations.
- Transferred internally to the TVN portfolio in June 2025, expanding responsibility for contract verification and rate management.
Billing Accountant
DLA Piper
Warsaw
10.2020 - 02.2023
- Addressed billing and tax queries to resolve customer issues and maintain compliance
- Issuing credit notes, writing-off invoices, reprinting and amending within company's internal rules
- Generated billing reports detailing billed amounts and remaining work in progress for financial tracking
- Assisted local administration staff and partners in invoice preparation to ensure timely billing
- Communicating with internal and external customers (via e-mail and skype)
- Writing and maintaining process documentation
- Ensuring that all relevant company's standards and guidelines are met
Redemption Specialist
Groupon Shared Services
Warsaw
01.2018 - 07.2020
- Verifying and executing the payoff of Groupon codes to avoid customer satisfaction issues
- Organised and submitted Merchant Services request forms for payments and redemption to Finance
- Generated codes based on merchant information while adhering to relevant procedures
- Clarified and assisted international merchants with company processes and policies to enhance understanding
- Designing and improving macros used for internal procedures
Customer Service Representative
Groupon Shared Services
Warsaw
10.2017 - 01.2018
- Resolved customer complaints, providing tailored solutions to enhance satisfaction
- Assisted customers with order placements, refunds, and exchanges to ensure seamless transactions
- Providing accurate, valid and complete information about internal processes and policies
- Maintained records of customer interactions and processed accounts to support efficient service delivery
Assistant manager
Café Jubilee
Valetta
04.2017 - 10.2017
- Managed restaurant supplies to minimise waste and control costs effectively
- Coordinated staff schedules to ensure optimal coverage during peak hours
- Led and trained kitchen staff to enhance team skills and service quality
Chef and shifty manager
Vapiano Restaurant
London
01.2017 - 04.2017
- Led and trained kitchen staff to ensure high standards of food preparation and safety
- Controlled food quality and delivered exceptional guest service to enhance dining experience
- Enforced health and safety standards for food storage, preparation and handling.
- Conducted food safety inspections, maintaining strict hygiene standards in the kitchen.
Shifty manager
Leon Restaurant
London
11.2013 - 12.2016
- Led training and development of new kitchen staff to ensure competency and team cohesion
- Monitored food quality to ensure adherence to recipes and standards
- Maintained kitchen organisation and ensured clean, sanitary conditions for efficient operations
Shop assistant and supervisor
Pinocchio educational bookshop
Lublin
02.2013 - 10.2013
- Assisted customers in selecting and purchasing products, enhancing their shopping experience
- Oversaw till operations, ensuring accurate cash handling and paperwork management at shift start and end
Warehouseman
Daewon Kang up Co., Ltd
Lublin
02.2012 - 01.2013
- Collated and processed order sheets for incoming and outgoing goods to ensure accurate inventory management
- Loaded and unloaded delivery vehicles using fork lift truck to facilitate timely deliveries
- Maintained cleanliness and organisation in the warehouse to support a safe working environment.
Education
Management
John Paul II Catholic University of Lublin
Lublin06-2012
Cultural Studies
John Paul II Catholic University of Lublin
Lublin06-2011
Skills
- Practical knowledge of SAP and AFS
- Contract & Rate Management
- Invoice Corrections & Credit Notes
- Advanced Microsoft Excel
- Microsoft 365
- Ability to work quickly and maintain quality standards
- KSeF (Polish National e-Invoicing System) – process knowledge & testing
- Focused and analytical approach
Languages
English - C1
Italian - B1
Timeline
Billing Analyst, EMEA
Warner Bros. Discovery / Discovery Polska Sp. z o.
03.2023 - Current
Billing Accountant
DLA Piper
10.2020 - 02.2023
Redemption Specialist
Groupon Shared Services
01.2018 - 07.2020
Customer Service Representative
Groupon Shared Services
10.2017 - 01.2018
Assistant manager
Café Jubilee
04.2017 - 10.2017
Chef and shifty manager
Vapiano Restaurant
01.2017 - 04.2017
Shifty manager
Leon Restaurant
11.2013 - 12.2016
Shop assistant and supervisor
Pinocchio educational bookshop
02.2013 - 10.2013
Warehouseman
Daewon Kang up Co., Ltd
02.2012 - 01.2013
Management
John Paul II Catholic University of Lublin
Cultural Studies
John Paul II Catholic University of Lublin