Billing Platform Engineer: Modernize & Automate

Hallmark Global Solutions Ltd; United States; On-site; USD 90,000 - 130,000; Full time

Job summary

Hallmark Global Solutions Ltd seeks a seasoned engineer to design and develop billing automation within an agile scrum team. You will translate complex billing domain knowledge into scalable backend solutions using Java and Python, while building REST APIs for test data provisioning.

You will work on end-to-end platform modernization, collaborating with QE, DBA, and platform engineering to deliver robust, production-ready features from day one.

Qualifications

• 5–8+ years of hands‑on experience with carrier‑grade post‑paid billing platforms.
• Deep understanding of end‑to‑end billing lifecycle — rating, charging, invoicing, payment processing, AR, and collections
• Strong knowledge of usage data concepts — voice, SMS, data usage across billing cycles
• Billing cycle expertise — open vs closed cycles, cycle close date logic, multi‑cycle data relationships
• Familiarity with billing execution utilities — billing jobs, AR processing, revenue recognition, and bill generation

Responsibilities

• Design and develop billing automation workflows as part of the scrum team — from requirement to production delivery
• Apply billing domain expertise to ensure platform features reflect real-world billing lifecycle scenarios
• Build and maintain REST APIs for self-service test data provisioning
• Develop automation components using Java and/or Python
• Translate billing domain requirements into technical specifications and implement them
• Identify gaps between current platform capabilities and target state and deliver solutions
• Collaborate with QE, DBA, and platform engineering teams to deliver end-to-end solutions
• Participate in sprint ceremonies — planning, standups, reviews, and retrospectives
• Document technical solutions and domain decisions for team knowledge base

Skills

Java

Spring Boot

Python

REST APIs

Oracle DB

CI/CD

Liquibase/Flyway

Git

Agile/Scrum

Scripting

Tools

Kubernetes

Liquibase

Flyway

Job description

Hallmark Global Solutions Ltd seeks a seasoned engineer to design and develop billing automation within an agile scrum team. You will translate complex billing domain knowledge into scalable backend solutions using Java and Python, while building REST APIs for test data provisioning.

You will work on end-to-end platform modernization, collaborating with QE, DBA, and platform engineering to deliver robust, production-ready features from day one.