About this role

FX Senior Java Developer (f/m/x) Sii Polska Daily tasks: - Designing and developing backend systems based on Java - Creating and evolving a microservices architecture - Building and maintaining REST APIs and system integrations - Designing solutions that meet high availability and performance requirements - Working with systems that process large volumes of data - Collaborating with the team using Agile methodologies - Participating in architecture design and technical decision-making - Implementing and optimizing CI/CD processes and ensuring system security Musts: Java, Spring Boot, REST, Microservices, SQL, Kubernetes, CI/CD Minimum 10 years in software development Very good knowledge of Java (backend) and Spring Strong understanding of REST APIs, HTTPS, microservices, and message queues (MQ) Ability to design high-availability, scalable, and high-performance systems Very good knowledge of relational databases (SQL) Familiarity with CI/CD pipelines and Agile ways of working Knowledge of distributed systems and data processing Hands-on work with Kubernetes and cloud platforms (GCP preferred) Fluent Polish and English required Residing in Poland required Nice-to-have requirements Knowledge of Go, Rust, or similar system-level languages Experience with NoSQL and analytical databases, e.g., ClickHouse Frontend development experience Familiarity with the banking sector (trade lifecycle, FX, post-trade processing) Banking experience / FX experience (forex) Working from the office in Krakow 6 times per month We are looking for an experienced Senior Java Developer to join a team responsible for building and developing modern backend systems in a distributed environment.

The projects involve high-performance and scalable solutions used in the financial sector, with a focus on processing large volumes of data and microservices architecture.

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