Billing System Engineer - Comarch BSS

InPost Group is an innovative European out of home deliveries company operating across several countries. It provides a network of intelligent lockers for fast, convenient, and secure parcel delivery. The company is publicly traded with a market capitalization of about $5 billion as of March 2023 and employs over 10,000 people worldwide, making it one of the largest out of home delivery providers in Europe.

• 3+ years of experience working with Comarch BSS (Product Catalog, Billing, Billing Mediation).
• 2+ years of experience with SQL for data analysis and troubleshooting.
• Experience in enterprise system integrations and familiarity with integration tools.
• Knowledge of billing processes (invoicing, rating, usage-based billing).
• Good knowledge of Linux, REST API testing, Apache Kafka, and databases such as Oracle, PostgreSQL, Elasticsearch.
• Active use of AI tools (e.g. ChatGPT, GitHub Copilot) for log analysis, SQL optimization, documentation, and initial problem diagnosis.
• English at B2 level or higher.

Nice to have:

• Experience with enterprise systems such as CRM, ERP, data warehouses, or event streaming platforms.
• Knowledge of Apache Cassandra and Kubernetes.
• Experience with prompt engineering and automating operational tasks using AI tools.

• Maintain and develop Comarch BSS (Product Catalog, Billing, Billing Mediation): configuration, updates, performance monitoring, and incident resolution.
• Monitor system processes, analyze logs, identify and resolve data and runtime issues.
• Ensure stability and continuity of system integrations and interfaces across the billing ecosystem.
• Manage backups, data recovery processes, and system availability and resilience.
• Take technical ownership of the billing system after deployments and during ongoing operations.
• Cooperate with infrastructure and security teams to ensure compliance with audit and security requirements.
• Track the BSS roadmap, run Proofs of Concept, and maintain high-quality technical documentation.