Senior Java Developer | Baltic States and Poland Citizen (remote) | Contract in Remote at WISE INTEGRATION
NewSalary: $40.00 - $50.00/hrJob Function: Information Technology
WISE INTEGRATION
Remote
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Job Description
Senior Java Developer | Baltic States and Poland Citizen (remote) | Contract
Key Responsibilities:Must-Have Requirements:Nice to Have:
40 - 50 an hour
Be part of a Core Banking team modernizing and supporting mission-critical services for a leading banking platform. You will deliver new features, reduce technical debt, and ensure regulatory compliance using Java 11/17+, Spring Boot, REST APIs, and microservices on highly available, enterprise-scale systems. Expertise with Kafka, Oracle Database, and event-driven architectures is key to maintaining resilient integrations with digital channels.
- Design, build, and maintain Java microservices with Spring Boot and JPA/Hibernate.
- Develop and integrate REST/SOAP services and Kafka-based messaging solutions.
- Optimize SQL queries and ensure performance on Oracle Database.
- Contribute to core banking transformation and legacy-modernization initiatives.
- Collaborate in Agile/Scrum teams, providing technical leadership and code reviews.
- Ensure high availability, resilience, and regulatory compliance across distributed systems.
- 5+ years of enterprise Java development (Java 11/17+).
- Deep Spring Framework / Spring Boot expertise.
- Proven experience with REST APIs, microservices, and event-driven architectures.
- Hands-on with JPA/Hibernate, Maven or Gradle.
- Proficiency in Kafka (or similar messaging) and Oracle Database performance tuning.
- Solid grasp of core banking architecture, integration patterns, and high-availability design.
- Experience in production-critical financial environments and Agile/Scrum delivery.
- Fluent English plus strong analytical and stakeholder-communication skills.
- Exposure to core banking platforms such as Oracle FLEXCUBE, Temenos T24, Finacle, Mambu, or Thought Machine.
- Experience with Git, CI/CD pipelines, Kubernetes/OpenShift, and AWS / Azure / GCP.
- Knowledge of Domain-Driven Design (DDD), automated testing, and ISO 20022 / SWIFT standards.
- Background in core banking migration or transformation programs.
40 - 50 an hour
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Job Location
Remote
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