Backend Java Developer

2 months ago


Old Toronto, Canada Totalperform Full time

Clientis is looking to build a skilled Java Backend Developer team with expertise in transaction processing in Payments, within the Banking and Financial Services sector. The ideal candidates will have a deep understanding of building secure and scalable transaction processing systems using micro-services based architecture and Java Spring Boot tech stack. You will be responsible for developing and maintaining high-performance, scalable backend services that power the payment processing systems of leading banks in North America.

Key Responsibilities:

  1. Design and develop backend services for transaction processing.
  2. Develop and manage RESTful APIs to handle the payment lifecycle.
  3. Work with relational and NoSQL databases to handle transaction data efficiently.
  4. Implement and enforce security protocols to protect sensitive payment data.
  5. Develop robust systems for processing payment transactions.
  6. Ensure backend services are optimized for high availability and low latency, handling large volumes of transactions.
  7. Work with third-party services to integrate and implement end-to-end payment solutions.

Required Competencies and Skills:

  1. 6-10 years of experience in Java backend development, with at least 3+ years focused on payment and transaction systems.
  2. Strong experience with Spring Boot, Spring MVC, and Spring Batch.
  3. Experience with relational databases (e.g., MySQL, PostgreSQL) and NoSQL databases (e.g., MongoDB).
  4. Knowledge of security practices in payment processing, including encryption, tokenization, and compliance with PCI-DSS.
  5. Proficiency with Git and understanding of CI/CD pipelines.
  6. Experience in Payments or financial transaction processing is mandatory.
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