Senior Java Developer

Quick Facts

• Role: Senior Java Developer

• Focus: Fraud Detection within an insurance claims/benefits platform

Description

You will join a strategic transformation initiative in the insurance industry to develop a modern ecosystem for claims and benefits handling. The work centers on designing, implementing, and maintaining integrations for a Fraud Detection system that supports the claims process, while improving quality with automated testing and engineering best practices. You will also participate in architecture/configuration reviews, Scrum ceremonies, and use AI/agentic AI throughout analysis, design, implementation, testing, documentation, and maintenance.

Responsibilities

• Implement and evolve Fraud Detection capabilities supporting claim handling

• Analyze business and technical requirements and implement configurable solutions, product extensions, and dedicated system components

• Design, build, and maintain integrations between the claims system and internal/external systems using APIs, event-driven communication, and integration services

• Plan releases, fix defects, and deliver changes based on requirement analysis and solution design

• Recommend the best approach between configuration, product customization, and dedicated development

• Design solutions considering functional/non-functional requirements, regulatory, performance, security, and maintainability

• Support data migration, environment integration, and readiness for launch and further development of the new platform

• Ensure high solution quality via automated tests and participation in integration/system testing

• Actively use AI and agentic AI tools across the software lifecycle

• Participate in code review, configuration review, and integration solution reviews for quality, security, and architectural compliance

• Collaborate in Scrum with business, architecture, integration, and test teams in an international environment

• Co-create deployment/integration standards and good practices

Requirements

• Minimum 5 years of Java programming experience

• Strong knowledge of Kafka

• Experience with Spring, Spring Boot, Spring Cloud, and Hibernate

• Strong SQL knowledge

• Knowledge of software quality assurance and unit/integration testing frameworks (JUnit, TestNG, Spock, Testcontainers, WireMock)

• Practical knowledge of Domain-Driven Design (DDD)

• Understanding of OOP and Functional Programming paradigms

• Knowledge of application containerization

• Knowledge of process engines, BPMN, and resilience patterns in distributed systems

• Ability to use AI tools during software development

• Knowledge of diagnostics and performance analysis tooling

Benefits

• B2B contract

• Hybrid model: 1 day per week in the Warsaw office

• Structured recruitment process with feedback regardless of the outcome