GyanSys Inc. · 3 hours ago
Java Developer with Retail Payment Integration
United States
Contract
Remote
Senior Level, Lead/Staff
8+ years expGyanSys Inc. is a leading global system integrator company supporting enterprise customers worldwide. They are seeking a Java Developer with Retail Payment Integration to work on payment provider integrations and ensure robust system performance and security.
ConsultingDevOpsEnterprise Resource Planning (ERP)Enterprise SoftwareFinanceInformation and Communications Technology (ICT)Information TechnologyProfessional ServicesSoftwareSupply Chain Management
Responsibilities
8+ years of experience in Java/Spring Boot (MVC, REST), including production systems at scale
Proven experience with payment provider integrations: Braintree/PayPal, Venmo, Klarna, or similar
Experience with vendor integrations using FTP file workflows, REST APIs, and message queues
Hands-on experience with OpenShift or Kubernetes, including routes/ingress, config maps, secrets, operators
Strong proficiency with Helm, Docker, and container deployment best practices
Deep understanding of resilient integration patterns: timeouts, retries/backoff, thread pools, connection pooling, circuit breaking, idempotency
Experience with TLS certificate management, keystores/trust stores, and secure service to service communication
Strong observability experience with APM tools, metrics, logs, and distributed tracing
SQL proficiency including query tuning and performance optimization
Demonstrated leadership in mentoring engineers and guiding technical strategy
Qualification
Required
8+ years of experience in Java/Spring Boot (MVC, REST), including production systems at scale
Proven experience with payment provider integrations: Braintree/PayPal, Venmo, Klarna, or similar
Experience with vendor integrations using FTP file workflows, REST APIs, and message queues
Hands-on experience with OpenShift or Kubernetes, including routes/ingress, config maps, secrets, operators
Strong proficiency with Helm, Docker, and container deployment best practices
Deep understanding of resilient integration patterns: timeouts, retries/backoff, thread pools, connection pooling, circuit breaking, idempotency
Experience with TLS certificate management, keystores/trust stores, and secure service to service communication
Strong observability experience with APM tools, metrics, logs, and distributed tracing
SQL proficiency including query tuning and performance optimization
Demonstrated leadership in mentoring engineers and guiding technical strategy
Bachelors degree in computer science/Information technology is required
Preferred
GraphQL experience (schema design, resolvers, gateway patterns)
PCIDSS or payment security experience including tokenization and 3D Secure flows
GitOps, Operators, container security scanning (Trivy, Anchore, ACS)
Feature flag frameworks and modern CI/CD delivery pipelines
Cloud experience (AWS or Azure)
Company
GyanSys Inc.
Founded in 2005, GyanSys is a leading global system integrator company supporting enterprise customers worldwide.
1001-5000 employees
H1B Sponsorship
GyanSys Inc. has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (28)
2024 (23)
2023 (32)
2022 (32)
2021 (28)
2020 (56)
Funding
Current Stage
Late StageLeadership Team
Neeraj Sahu
VP and Client Partner
Norberto Monarrez
Chief People Officer (CPO) and VP of Finance
Recent News
2022-07-11
2022-01-12
Company data provided by crunchbase