Software Engineer Java or C++ (f/m/d)

Your career at Deutsche Börse Group Your area of work: We are looking for an experienced Software Engineer to join the CBL Connectivity & Data development team (HUB) to work on a JMS middleware application. The application is based on Java (JDK21+) and C++, in-house developed, and deployed partially as a standalone Java application and partially on the OpenShift platform. For persistence, Oracle RDBMS, IBM MQ, and Apache Kafka are used. The application consists of separate micro-services which communicate over JMS with each other as well as with the rest of the world. We use GitHub, JIRA, Gradle, Jenkins, Sonar, JUnit, HPFortify, and — last but not least — AI tools including the most advanced models from Anthropic, OpenAI and Google. We're looking for someone who treats software delivery as more than writing code — analyzing problems deeply, designing secure solutions, and owning outcomes through to a stable production result. Your responsibilities: Work on a highly critical part of connectivity infrastructureAnalyze and clarify business requirements, identifying gaps, risks, and edge casesDesign interfaces and solutions for internal and external systems, weighing trade-offs and long-term impactCommunicate scope, timeline, and progress proactively; present and refine solution proposals with the teamApply secure-by-design principles, identifying and treating security risks throughout the lifecycleOwn your work end-to-end — analysis, design, implementation, testing, deployment, and support (in simulation and production)Learn and follow the software delivery process at DBG Your profile: University degree in information technology, engineering, or similar (CTU, UK MFF)Proficient in written and spoken English3+ years of professional experience in software engineeringExperience with Java or C++ Experience with messaging architecture (event streaming, pub-sub, SOA, message-driven middleware) and message formats (XML, JSON, CSV, PDF, ...)Solid foundation in software design: object-oriented design, architecture and interface design, SQLSecurity-conscious: aware of application security principles and their impact on design (ISO 27001 a plus)Strong analytical skills: able to reason about complex systems and identify root causesSelf-organizing, autonomous, and detail-oriented, with proactive communication and strong negotiation skills Would be an advantage: Experience with LinuxContainerization (Docker, Kubernetes, OpenShift)Cloud Services (AWS/Azure/GCP)SWIFTNetPrevious experience in the financial sectorSecure coding practices, threat modeling, or security tooling (e.g. static/dynamic analysis, Sonarqube, HPFortify, ISO27001) You can look forward to our benefit package: Hybrid Work and Flexible working hours Work from abroad - 12 days of remote work from EU countries per year Group Share Plan - discount on company shares Pension fund contribution - 3% of your gross salary (5% after 5 years with us) Health & Wellbeing - fully covered Multisport card, life & accident insurance, sick days and 100% salary contribution during sick leave (up to 56 days) 25 vacation days Mobility - fully covered public transport in Prague & free parking Flexible Benefit Account (Pluxee) - 1200 per month Free Access to E-Learning Platforms, Internal Development Programs, Mentoring & Learning Budget