Java Full Stack Payment Integration Engineer

Salary is 160k to 185k + bonus

We are seeking a skilled Java Full Stack Payment Integration Engineer to design, develop, and support secure, scalable payment processing and integration solutions. This role will focus on building end-to-end payment workflows, integrating third-party payment gateways, and developing modern full-stack applications that support high-volume transaction environments.

Key Responsibilities

• Design and develop backend services using Java (Spring Boot preferred) to support payment processing and transaction workflows.

• Build responsive front-end applications using Angular, React, or similar frameworks.

• Integrate with third-party payment gateways, processors, and financial APIs.

• Develop and maintain RESTful APIs and microservices architectures.

• Ensure secure handling of payment data in compliance with PCI-DSS and other regulatory standards.

• Implement transaction logging, reconciliation, and reporting features.

• Troubleshoot payment failures, integration issues, and performance bottlenecks.

• Collaborate with product, compliance, and finance teams to implement new payment features and enhancements.

• Participate in code reviews, testing, and CI/CD deployment pipelines.

Required Qualifications

• Strong backend development experience with Java and Spring Boot.

• Strong front-end experience with Angular, React, or similar frameworks.

• Hands-on experience integrating payment gateways (Stripe, PayPal, Adyen, Authorize.Net, etc.).

• Experience working with REST APIs, microservices, and distributed systems.

• Solid understanding of secure coding practices and payment compliance standards (PCI-DSS).

• Strong SQL/database experience (Oracle, MySQL, PostgreSQL, or similar).

Preferred Qualifications

• Experience with cloud platforms (AWS, Azure, or GCP).

• Familiarity with message queues (Kafka, RabbitMQ) for payment event processing.

• Experience in fintech, banking, or high-volume e-commerce environments.

• Knowledge of tokenization, fraud detection integrations, or multi-currency payment systems.