Senior Java Backend Developer – Financial Technology

🏢 Summary: Senior Java Developer role supporting secure, scalable banking and payments systems in Warsaw, with a hybrid schedule of one remote day per week. The position covers solution design, development, testing, and delivery of event-driven microservices within distributed systems. 🗂️ Requirements: 4+ years of Java development experience in financial or similarly complex domains, Java, Spring, Hibernate, DB2, Spring Boot, and RESTful API expertise, Apache Kafka experience, including producers, consumers, Kafka Streams, and Kafka Connect, MongoDB and Spring Data MongoDB knowledge, Docker, Maven, Git, and CI/CD pipeline familiarity, Understanding of event-driven microservices and distributed systems, Communicative English, Existing legal right to work in the European Union 📃 Skills: Java, Spring, Hibernate, DB2, Kafka, MongoDB, Docker, Maven, Git, GitLab, CI/CD, REST 🏢 Description: Unleash innovative financial solutions — shape the future of fintech with Java excellence! Warsaw-based opportunity with hybrid work model (1 remote day per week). As a Senior Java Developer , you will be working for our client, a leader in financial technology solutions. You will contribute to critical projects in the banking and payments industry, shaping the evolution of secure, scalable financial systems and ensuring seamless integration of cutting-edge technologies. This role offers an excellent platform for career growth amidst a dynamic, global team. Your main responsibilities: Participate in requirements gathering sessions with business users to understand project needs. Lead analysis, solution design, and planning activities within the engineering team. Implement and rigorously test software changes; participate in code reviews and assist in UAT and releases. Innovate by improving existing stacks and developing new functionalities in a fast-paced environment. Contribute to the development of event-driven and microservices architectures within distributed systems. Collaborate effectively with international teams and stakeholders. Maintain high-quality documentation and ensure adherence to best practices. Engage actively in continuous improvement initiatives and process optimizations. You're ideal for this role if you have: 4+ years of proven experience in Java development within financial or similarly complex domains. Proficiency in Java, Spring, Hibernate, DB2, Spring Boot, and RESTful API design. Experience with Apache Kafka, including producers, consumers, Kafka Streams, and Kafka Connect. Knowledge of MongoDB and Spring Data MongoDB. Familiarity with Docker, Maven, Git, and CI/CD pipelines (preferably GitLab CI). Solid understanding of event-driven/microservices architectures and distributed systems. Strong analytical, communication, and teamwork skills. Ability to work in a fast-paced, collaborative environment with a strong work ethic. It is a strong plus if you have: Experience with IBM MQ / JMS and infrastructure as code. Knowledge of financial messaging standards such as ISO 20022, SWIFT, CBPR+, FIN. Python scripting and experience in financial services, payments, or banking technology. Language Required for the role: Communicative English proficiency. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Java Developer role leading the delivery of resilient, highly available, event-driven microservices for a high-stakes financial environment. The position owns complex backend features end to end, from data models and APIs through deployment, monitoring, testing, and CI/CD quality practices. 🗂️ Requirements: 7+ years of commercial backend development, Proven experience building complex, distributed, scalable systems, Java 21+, Spring Boot, PostgreSQL, Kafka, OpenAPI, Vault, Kubernetes, Docker, Terraform, GitLab CI or Jenkins, Maven, Microservices architecture, Event-driven design, RESTful APIs, SCRUM, Strong collaboration skills, Fluent English 📃 Skills: Java, SpringBoot, PostgreSQL, Kafka, OpenAPI, Vault, Kubernetes, Docker, Terraform, GitLab, Jenkins, Maven, Microservices, REST, SCRUM 🏢 Description: Senior Java Developer We are looking for a Senior Java Developer (7+ years of experience) to lead the development of resilient, highly available systems and event-driven microservices in a high-stakes financial environment. Requirements: Experience: 7+ years of commercial backend development with a proven track record of building complex, distributed, and scalable systems. Tech Stack: Backend: Java 21+, Spring Boot, PostgreSQL, Kafka, OpenAPI, Vault DevOps & Cloud: Kubernetes , Docker, Terraform, GitLab CI/Jenkins, Maven Core Skills: Microservices architecture, event-driven design, RESTful APIs, SCRUM, strong collaboration skills, and fluent English. Nice to Have: Financial services/FinTech background, experience in distributed global teams, and exposure to AI/LLM integrations. Responsibilities: Architecture & Infrastructure: Lead the development of scalable, event-driven microservices engineered for high throughput and maximum uptime. Data & Security: Design robust data models while ensuring strict data consistency and security in a financial ecosystem. End-to-End Feature Ownership: Own complex backend features across their full lifecycle—from schema and API definition to deployment and production monitoring. Cross-Functional Collaboration: Partner with global stakeholders and frontend engineers to translate complex financial workflows into high-performance technical specs. Engineering Excellence: Elevate code quality through code reviews, modern CI/CD automation, and comprehensive testing (Unit, Integration, and Contract testing).

🏢 Summary: Senior Java Developer role focused on building and maintaining backend securities-settlement systems. The position uses event-driven architecture, container orchestration, CI/CD, monitoring, and AI-assisted development in a hybrid work model with up to three remote days per week. 🗂️ Requirements: 3+ years of Java software development experience, Proficiency in Java and Spring Boot, Hands-on Kafka experience, Experience with GitLab and SDLC tools, Understanding of Docker and Kubernetes, Communicative English, Legal right to work in the European Union 📃 Skills: Java, Spring, Kafka, GitLab, Docker, Kubernetes 🏢 Description: Unleash the Power of Modern Financial Systems — Drive Innovation in Securities Settlement Technology! Warsaw-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Java Developer , you will be working for our client, a leader in the securities and post-trade processing industry. You’ll contribute to building and maintaining cutting-edge settlement systems that enable reliable, secure, and efficient financial transactions. Join a collaborative environment where innovation and technology meet to transform the future of finance. Your main responsibilities: Develop and maintain Java-based backend services using Spring Boot to support securities settlement processes Work with Kafka to implement event-driven architectures for real-time data processing Deploy and manage applications utilizing Kubernetes and Argo CD for orchestration and automation Participate actively in CI/CD pipelines using GitLab to ensure reliable and continuous delivery Monitor system performance and health through Prometheus, Grafana, and the Elastic Stack Leverage AI tools like GitHub Copilot, Devin, and Claude to improve code quality and team productivity You’re ideal for this role if you have: Minimum 3 years of experience in software development, specifically with Java Strong proficiency in Java programming and Spring Boot framework Hands-on experience with Kafka and SDLC tools such as GitLab Solid understanding of containerization and orchestration technologies (Docker, Kubernetes) Experience with deploying and managing cloud applications, ideally on AWS (nice to have) Knowledge of securities settlements and post-trade processing (preferred) Familiarity with AI tools like Devin and Claude (preferred) Excellent problem-solving skills and attention to detail Strong communication skills and ability to work collaboratively in a team It is a strong plus if you have: Experience with AWS cloud platform Knowledge of securities settlement and post-trade systems Hands-on experience with Argo CDF Certifications or familiarity with AI-driven development tools Language Required for the role: English – Communicative level Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.