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Hallmark Global Technologies Inc Logo
Technical Java Developer
Posted On: 30+ days ago
Experience: 10+ years
Availability: Hybrid
Openings: 1
Category: Technical Java Developer
Tenure: Contract - Corp-to-Corp
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Description

You will develop and maintain backend services for credit card processing systems, ensuring compliance and real-time transaction handling.

Responsibilities

  • Build and maintain APIs for credit card transactions, account updates, and real-time processing using Core Java and Spring Boot.
  • Integrate and enhance systems interacting with the TSYS credit card processing platform, covering authorizations, settlements, and fraud checks.
  • Troubleshoot production issues and provide L3 support for credit card systems, ensuring adherence to PCI-DSS and security standards.
  • Develop microservices and batch processing modules using Kafka or RabbitMQ, with SQL database integration.

Required Skills

  • 6-10 years of experience as a Java Developer with deep understanding of Core Java and Microservices.
  • Strong knowledge of TSYS/Prime/Issuer Solutions and credit card lifecycle, including ISO-8583 messages.
  • Hands-on experience with Spring Boot, REST APIs, and SQL.
  • Proficiency with message brokers such as Kafka or RabbitMQ.
  • Experience with cloud platforms (Azure, GCP, or AWS).
  • Familiarity with authorization engines and transaction switches.

Education

Any Gradute

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