Senior Java Engineer L2

Your Impact

* Join a large-scale financial services platform, supporting business-critical systems with high standards of reliability, security, and performance.

* Play a key role in the ongoing modernization of enterprise Java applications, including:

* Migrating legacy Java services to modern Java versions (Java 17 / Java 21)

* Refactoring existing codebases to improve scalability, performance, and maintainability

* Contributing to architectural evolution toward modern, cloud-native patterns

* Design and enhance high-performance backend systems, supporting both new features and platform evolution.

* Collaborate directly with senior client stakeholders in a highly autonomous, client-facing environment.

* Contribute to platform stability by participating in production-related activities, while keeping development and modernization as the primary focus.

* Strong hands-on experience with Java in enterprise-scale systems, ideally within regulated or high-availability environments.

* Proven experience working with modern Java versions, including Java 17 and Java 21.

* Solid understanding of Core Java fundamentals, including:

* Java Collections Framework (List, Set, Map, concurrency-aware collections)

* Object-oriented principles and enterprise design patterns

* Strong background in concurrency and multithreading, including:

* ExecutorService, thread pools, synchronization strategies

* Designing thread-safe, high-performance systems

* Experience optimizing backend performance across:

* REST APIs

* SQL queries and data access layers

* Microservices interactions and data processing flows

* Strong understanding of REST API concepts, including:

* HTTP methods, status codes, idempotency