As a Senior Backend Developer (Java) you will be working for our client, a global leader providing cutting-edge infrastructure for financial markets, supporting securities trading, post-trade services, and financial data operations worldwide. You will be part of the Stock Exchange Engineering team, driving the development of mission-critical back-end systems that ensure market oversight and integrity. The project focuses on building high-performance, resilient platforms for trading and market data, enabling real-time insights and reliable financial operations that form the backbone of international market infrastructure.
Warsaw-based opportunity with a hybrid work model (2-3 days/week in the office).
responsibilities :
Design, develop, and optimize high-performance Java-based internal interfaces for trading and market data ingestion
Build and maintain system integration scripts ensuring interoperability across multiple platforms and services
Manage and enhance CI/CD pipelines to automate builds, testing, and deployments
Expand automated testing frameworks to include unit, integration, and regression coverage
Develop and improve Ansible roles to standardize deployments across environments
Collaborate within an agile DevOps culture, contributing to continuous improvement and shared ownership
Support performance tuning and troubleshooting of distributed systems
Participate in architectural discussions and technical design reviews
Ensure code quality and adherence to best practices in security and compliance
Work closely with cross-functional teams to deliver robust, scalable software solutions
requirements-expected :
5+ years of professional experience in Java development (Java 17+, Maven, JUnit5)
Proven expertise in Python and Ansible for automation and infrastructure-as-code practices
Strong DevOps mindset with experience managing GitLab CI/CD pipelines
Proficiency in Linux command-line environments and system troubleshooting
Familiarity with Docker, OpenShift, and PostgreSQL in enterprise environments
Experience designing and maintaining automated testing frameworks
Understanding of financial systems or real-time data processing environments
Exposure to the FIX protocol and Kafka or similar messaging technologies
Excellent analytical and problem-solving skills with attention to detail
Strong collaboration skills and experience working in agile teams (SCRUM, SAFe)
Exposure to C++
offered :
Stable and long-term cooperation with very good conditions
Enhance your skills and develop your expertise in the financial industry
Work on the most strategic projects available in the market
Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years
Participate in Social Events, training, and work in an international environment
Access to attractive Medical Package
Access to Multisport Program
Access to Pluralsight
Flexible hours
benefits :
sharing the costs of sports activities
private medical care
remote work opportunities
flexible working time
fruits
integration events
corporate gym
saving & investment scheme
no dress code
coffee / tea
drinks
christmas gifts
birthday celebration
sharing the costs of a streaming platform subscription
