Java Software Engineer

1 year ago

Warsaw, PolandMid Level

Responsibilities

Design and build scalable, low-latency, high-performance backend services.
Develop distributed and asynchronous systems for reliability and fault tolerance.
Optimize performance across JVM, databases, caching, and networking layers.
Apply security best practices when handling client PII and financial transactions.
Use event-driven architectures and messaging solutions such as Kafka.
Collaborate with cross-functional security, operations, product, and business teams.
Maintain code quality through testing, code reviews, and CI/CD practices.
Use AI tools for coding assistance, debugging, testing, documentation, and workflow optimization.

Proven experience in FinTech, banking, or related financial domains.
Strong understanding of distributed-systems architecture and the client-server model.
Ability to design and maintain scalable, low-latency, high-performance systems.
Advanced knowledge of Java Core technologies and the Spring framework.
Strong knowledge of concurrency, multithreading, and asynchronous programming.
Proficiency with SQL databases, including performance, structure, and replication considerations.
Understanding of event-driven architecture and Kafka or similar solutions.
Hands-on experience with operational activities, Kubernetes, pipelines, and modern CI/CD practices.
Basic understanding of network protocols and troubleshooting.
Experience working in a fast-paced, product-led environment.
Knowledge of JVM performance optimization, NoSQL databases, and in-memory caching is preferred.

Competitive salary and annual performance-based bonus.
Generous annual leave policy.
Health insurance and pension fund, with additional location-dependent benefits.
Hybrid working with three days in the office or fully remote across the country of employment.
Workation policy allowing 30 days of remote work from anywhere in the world.
Two additional paid volunteering days per year.

1,001-5,000 employees