Sr. Java Developer

Insight Global

Smyrna, GA, United States

2 days ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Experience required

4 years minimum

Working hours

Regular working hours

Job source

dejobs.org

Tech stack

Java (Programming Language) Application Programming Interfaces (APIs) Artificial Intelligence Architectural Patterns Software as a Service Elasticsearch Payment Systems Machine Learning Enterprise Messaging Systems Software Deployment Systems Integration Google Cloud

+11 more

Cloud Platform System Backend Event Driven Architecture Containerization Kubernetes Infrastructure Automation Frameworks Cassandra Api Design Terraform Docker Legacy Systems

Job description

We are seeking a Java Developer to join a high-impact team supporting enterprise-level eCommerce payment systems. This team owns the core payment processing function across .com, Home Services, and Pro channels-ensuring transactions are valid, secure, and seamlessly integrated across backend systems.

This role is part of a broader 2026 transformation initiative, which includes: * Building net-new cloud functionality * Driving cloud migration (GCP-focused) * Retiring 20-30% of legacy systems

This is a great opportunity for someone who enjoys solving complex migration challenges, working across APIs and event-driven systems, and contributing to mission-critical financial workflows., Key Responsibilities * Support and enhance cloud-based applications within GCP (Google Cloud Platform) * Participate in end-to-end API migration efforts, including: o Transitioning from legacy APIs to modern architectures o Managing evolving data contracts * Ensure regression reliability-validating that system changes do not create financial discrepancies * Contribute to the design and implementation of event-driven systems * Collaborate with cross-functional teams on payment processing workflows and integrations * Build, deploy, and maintain containerized applications in cloud environments * Take ownership of tasks by thoroughly reviewing documentation and requirements before escalating questions

Requirements

4-7 years of experience in backend Java Development o Creating API and integrating with other APIs o (publishing/consuming-minimal greenfield API design) o * Hands-on experience deploying applications to the cloud - (GCP/Google Kubernetes Engine preferred); specifically deploying applications to the cloud * Strong problem-solving skills and ability to think critically through complex scenarios * Familiarity with event-driven architecture * Experience with: o Messaging systems (e.g., Pub/Sub) o Cassandra o Elasticsearch * Exposure to Terraform or Infrastructure as Code tools * General awareness of AI/ML concepts or cross-domain technologies * Strong understanding of: o Containerization (Docker preferred) o Kubernetes runtime environments * Exposure to system migration projects or modernization initiatives