Billing System Administrator

InPost Group is an innovative European out of home deliveries company, revolutionizing the way parcels are delivered to customers. With operations across several countries, our network of intelligent lockers provides customers with a fast, convenient, and secure delivery option. InPost Group is a publicly traded company, with a market capitalization of about $5 billion as of March 2023. With over 10,000 employees worldwide, InPost Group is one of the largest out of home delivery providers in Europe, committed to providing sustainable and efficient delivery solutions to meet the evolving needs of customers in today's rapidly changing landscape. 

We are currently looking for a Billing System Administrator. In this role, you will support the administration of all Comarch BSS modules and actively contribute to the design and development of Billing & CPQ architecture across the InPost Group. If you're passionate about backend systems, data integration, and billing processes — we’d love to hear from you!

Responsibilities:

• Installation, configuration, patching, upgrades, performance monitoring, tuning and troubleshooting of Comarch BSS, including the following modules: Product Catalog, Billing, Billing Mediation; 
• Keeping an eye on system jobs, understanding error logs, investigating any data issues, and resolve runtime problems; 
• Interfaces monitoring; 
• Manage backups and restores, disaster recovery, high availability of systems. 
• Develop a deep understanding of the billing platform and look for ways to improve its use in daily operations. 
• Help set up data connections and integrations to ensure smooth data flow from start to finish, and take technical ownership of the system after go-live. 
• Participate in discussions around expanding the technical team for further implementation in European markets, helping to define roles and responsibilities as needed. 
• Manage and satisfy audit controls. 
• Security experience is required. 
• Effectively interface and collaborate with other tech teams, including infrastructure and security teams. 
• Participate in on-call rotation. 
• Stay abreast of BSS roadmaps, development to help improve current platform. 
• Leading Proof of Concept and guiding team on billing system technology possibilities 
• Create and maintain team documentation leading to best practices, standardization and service desk support. 

• 3+ years of experience with Comarch BSS.
• Hands-on experience with Product Catalog, Billing, and Billing Mediation modules.
• Working knowledge of Product Catalog architecture and related entities (specification, offering, usage, etc.).
• Fluent in Polish and English (spoken and written).
• Proficient in SQL for data validation, record tracking, and issue resolution.
• Understanding of data flow and experience with integration tools (e.g., Apache Camel).
• Proven experience integrating enterprise systems (CRM, ERP, data warehouses, event streaming platforms).
• Experience with complex backend systems (e.g., ERP or financial platforms).
• Knowledge of billing processes (invoicing, rating, usage-based billing) is a plus.
• Familiarity with server-side scripting, batch processing, and document generation.
• Comfortable analyzing logs, system settings, delays, and performance issues.
• Ability to interpret technical documentation and challenge assumptions when needed.
• Understanding of data privacy standards (e.g., GDPR).
• Strong interpersonal and communication skills (written and verbal).
• Ability to explain technical issues to both technical and non-technical audiences.
• Skilled in managing multiple priorities and tasks simultaneously.
• Strong analytical and technical communication abilities.
• Detail-oriented and able to follow written and verbal instructions.
• Effective in organizing and scheduling work.
• Able to work under time pressure and adapt to changing priorities.
• Capable of working independently.
• Willing to work flexible hours.
• Experience collaborating with or managing external teams on system integration projects.

Why Join InPost? 

• Opportunity to work in a diverse, international, and cross-functional environment, along with leading experts. 
• You work and learn from a senior leader and their leadership bench, extending your experience and exposure in the e-commerce and logistics industry. 
•  InPost is a growing company that offers its employees an increasing number of opportunities in several locations in Europe. 
• Fulfilling careers with a range of benefits for employees and investing in providing training opportunities for their development. 
• You will feel a part of the InPost community that makes an impact on sustainability, convenient deliveries, and circular economy every day. 
• Excellent working environment and Flexible hours