Java Developer

Title:

- Java DeveloperTOP

SKILLS:

• Senior-level experience developing enterprise Java applications.

• Strong hands‑on experience with Java, Spring, and Spring Boot.

• Experience developing RESTful APIs and backend microservices.

• Experience with API Gateway integration and enterprise system integrations.

• Hands‑on Point‑of‑Sale (POS) experience, including working directly with POS terminals or related test environments.

• Experience working in PCI‑scoped, payment, financial, or other security‑sensitive environments.

• Ability to work effectively onsite with cross‑functional technical teams.

Java, Spring, Spring Boot, REST APIs, API Gateway, Microservices, POS Integration, PCI/Secure Development Practices

Kafka, Event-Driven Architecture, Payment Systems, CI/CD, Cloud, Containers

* NO SQL

We are seeking an Advanced Software Engineer to join a newly established team supporting the Omnichannel Payment Platform (OPP) and a new Point-of-Sale (POS) system. This senior‑level consultant will play a critical role in stabilizing the new POS environment and integrating it with OPP.

The ideal candidate will have strong hands‑on experience with Java, Spring/Spring Boot, backend services, API Gateway integrations, and enterprise payment systems, along with practical POS experience. Experience working in PCI‑scoped environments is highly valued.

• Design, develop, and maintain backend services using Java and Spring Boot.

• Support the integration of the new POS platform with the Omnichannel Payment Platform (OPP).

• Develop and support integrations with enterprise API Gateway platforms and downstream services.

• Troubleshoot and stabilize POS-to-backend and payment processing integrations.

• Perform hands‑on testing and troubleshooting using physical POS terminals and test hardware in the onsite POS lab.

• Develop secure, scalable, and highly available backend services.

• Work within PCI‑scoped environments, adhering to applicable security and compliance standards.

• Collaborate with POS, payment, architecture, QA, Dev Ops, and product teams to resolve integration issues and accelerate delivery.

• Participate in technical design, code reviews, troubleshooting, and architecture discussions.

• Develop automated unit and integration tests to ensure reliable and maintainable solutions.

• Investigate complex integration and production issues and drive them through resolution.

• Support event-driven architectures and messaging technologies as required.

• Help establish development and integration practices for the newly formed OPP/POS team.