Senior Java Developer

🏢 Summary: Senior Java Developer role focused on building and optimizing high-throughput, event-driven backend microservices in a distributed architecture based on Kafka. The position involves designing scalable and reliable systems using modern Java and Spring Boot within an agile, international environment. Work includes performance optimization, asynchronous communication, and implementation of DDD and Event Sourcing patterns. 🗂️ Requirements: 5+ years of Java backend development experience, Strong hands-on experience with Kafka producer/consumer design and optimization, Experience with SQL and relational databases (Oracle, DB2, MSSQL or similar), Experience building distributed, high-availability, high-performance systems, Practical knowledge of Domain-Driven Design (DDD) and Event Sourcing, Experience with microservices architecture, Fluent English 📃 Skills: Java, Spring, Kafka, SQL, Oracle, DB2, MSSQL, Docker, Git, Maven, Microservices, CI/CD, DDD, EventSourcing, Splunk, Grafana 🏢 Description: We’re looking for a Senior Java Developer to support the development of business-critical backend services in a distributed, high-throughput architecture. The system is built on Kafka-based asynchronous communication and designed with a strong focus on performance, scalability, and reliability. You will be involved in designing and developing clean, event-driven microservices, working closely with experienced engineers in an international, agile setup. Tech stack Java 11+, Spring Boot Apache Kafka – producer/consumer optimization, retries, partitioning SQL: Oracle / DB2 / MSSQL Docker, Git, Maven Microservices architecture CI/CD pipelines Domain-Driven Design (DDD), Event Sourcing Monitoring: Splunk / Grafana (nice to have) What we expect 5+ years of experience in Java backend development Strong hands-on skills in Kafka producer/consumer design and optimization Solid experience in SQL and relational databases (Oracle, DB2, MSSQL or similar) Proven background in building distributed, high-availability, high-performance systems Practical understanding of DDD, Event Sourcing, microservices, and clean architecture Fluent English for daily collaboration

🏢 Summary: Senior Java Developer role for a long-term remote finance project focused on enterprise-scale backend systems, microservices, and cloud-native architecture. The position involves developing and modernizing critical financial platforms using Java 17+, Spring Boot, Kafka, and Kubernetes in collaboration with cross-functional engineering teams. 🗂️ Requirements: 5+ years commercial Java experience, Strong Spring Boot knowledge, Experience with microservice architecture, Understanding of relational databases, Experience with Kafka or messaging platforms, Hands-on Docker experience, Hands-on Kubernetes experience, Knowledge of software design patterns, Understanding of clean architecture, Professional English level B2+ 📃 Skills: Java, Spring, SpringBoot, SpringCloud, Microservices, Kafka, REST, PostgreSQL, Oracle, Docker, Kubernetes, Maven, Gradle, Git, CI/CD, AWS, Azure, GCP, Terraform, Grafana, Prometheus, ELK 🏢 Description: Senior Java Developer | Finance Project We’re looking for a Senior Java Developer to join one of our international clients operating in the financial services industry. You’ll work on enterprise-scale backend systems responsible for processing critical financial operations, developing new features, and modernizing existing architecture. The project is long-term, fully remote, and offers plenty of technical challenges. Responsibilities Design and develop high-quality Java applications. Build scalable microservices and REST APIs. Collaborate with Product Owners, Architects, QA Engineers, and DevOps teams. Improve system performance, scalability, and reliability. Participate in architecture discussions and code reviews. Write clean, maintainable, and well-tested code. Tech Stack Java 17+ Spring Boot Spring Cloud Microservices Kafka REST APIs PostgreSQL / Oracle Docker Kubernetes Maven / Gradle Git CI/CD AWS / Azure / GCP Requirements 5+ years of commercial experience with Java. Strong knowledge of Spring Boot. Experience with microservice architecture. Good understanding of relational databases. Experience with Kafka or other messaging platforms. Hands-on experience with Docker and Kubernetes. Understanding of software design patterns and clean architecture. Professional level of English (B2+). Nice to have Experience in banking, fintech, or financial services. Knowledge of event-driven architecture. Experience with Terraform. Familiarity with monitoring tools such as Grafana, Prometheus, or ELK. What you’ll get Long-term cooperation on an international project. 100% remote work. B2B contract. Flexible working hours. Modern cloud-native technology stack. Opportunity to work on large-scale financial systems. Experienced engineering team. Real influence on technical decisions. About the recruitment This recruitment process is conducted by RemoDevs on behalf of one of our clients. If your profile matches the project requirements, we’ll share more details about the company and the project during the first interview.

🏢 Summary: Opportunity for a Senior Java Backend Developer to build and maintain a secure, large-scale public platform based on microservices within the financial services sector. The role focuses on developing business-critical backend services, contributing to architectural decisions, and improving deployment and engineering practices. Ideal for experienced engineers who combine strong Java expertise with architectural thinking and a proactive approach to system optimization. 🗂️ Requirements: 6–10 years of professional software development experience, Strong expertise in Java backend development, Experience with microservices architecture, Understanding of distributed systems, Experience in system design and software architecture, Ability to work with secure, large-scale systems, Experience improving deployment processes and system reliability 📃 Skills: Java, Microservices, DistributedSystems, SystemDesign, SoftwareArchitecture, REST, Git, Maven, Gradle, Python, Cloud, DevOps 🏢 Description: Senior Java Backend Developer 📍 Location: Wrocław, Poland (Hybrid – 3 days onsite) 📈 Experience: 6–10 years We are currently looking for an experienced Java Backend Developer for our client operating in the financial services sector . The successful candidate will join a team responsible for developing and maintaining a secure, large-scale public platform built on a microservices architecture. This role offers the opportunity to work on business-critical systems where reliability, scalability, and security are key priorities. Beyond feature development, the team is focused on addressing challenges related to architecture, deployment practices, and engineering processes. Therefore, we are looking for someone who combines strong hands-on development skills with architectural thinking and a proactive approach to problem-solving. Key Responsibilities Design and develop new backend features and services using Java Maintain and enhance a secure, customer-facing platform Work within a modern microservices ecosystem Contribute to architectural improvements and technical decision-making Help optimize deployment processes, system reliability, and development workflows Identify technical challenges and propose scalable, long-term solutions What We're Looking For 6–10 years of professional software development experience Strong expertise in Java backend development Solid understanding of microservices architecture and distributed systems Experience with system design and software architecture Strong analytical and critical-thinking skills Ability to understand technical concepts deeply and make informed engineering decisions A proactive mindset and willingness to improve existing systems, processes, and practices Nice to Have Experience with Python Exposure to cloud environments and modern DevOps practices This opportunity is particularly suited to engineers who enjoy working on complex backend systems, influencing architectural decisions, and helping teams improve the way software is designed, built, and deployed.

🏢 Summary: 12+ month B2B contract for a Senior Java Developer to design, develop and integrate backend services for an enterprise financial application in a fully remote model. The role focuses on building high-quality, scalable and stable Java-based solutions, including REST and SOAP integrations, within an Agile environment. 🗂️ Requirements: 5–8+ years of commercial experience with Java, Strong knowledge of Spring Framework, Strong knowledge of Spring Boot, Experience with Hibernate, Experience with JPA, Experience designing and implementing REST API, Experience working with SOAP services, Knowledge of Oracle Database, Knowledge of Oracle SQL, Experience with system integrations, Experience with RabbitMQ, Experience with Maven, Experience working in Agile/Scrum, English level B2 or higher 📃 Skills: Java, Spring, SpringBoot, Hibernate, JPA, REST, SOAP, Oracle, SQL, RabbitMQ, Maven, Agile, Scrum 🏢 Description: Podsumowanie roli: Senior Java Developer będzie odpowiedzialny za rozwój, integrację oraz utrzymanie usług backendowych dla korporacyjnej aplikacji finansowej. Rola koncentruje się na projektowaniu i implementacji wysokiej jakości rozwiązań technologicznych, integracji systemowej oraz zapewnieniu stabilności i skalowalności usług w środowisku enterprise. Co oferujemy: Długość kontraktu: 12 miesięcy+ możliwość przedłużenia Typ kontraktu: B2B Widełki finansowe: 140-160 zł/h Model pracy: 100% zdalnie Zakres obowiązków: Projektowanie, rozwój i integracja usług backendowych w technologii Java. Implementacja rozwiązań backendowych zgodnie z wymaganiami biznesowymi i technicznymi. Tworzenie oraz utrzymywanie API REST. Praca z usługami SOAP oraz integracjami systemowymi. Implementacja logiki biznesowej oraz warstwy dostępu do danych. Pisanie i utrzymywanie testów jednostkowych. Współpraca z analitykami, architektami oraz zespołem projektowym. Udział w pracach zespołu Agile/Scrum. Dbanie o jakość kodu, stabilność rozwiązań oraz zgodność z dobrymi praktykami developerskimi. Praca zdalna w środowisku enterprise. Wymagania: Bardzo dobra znajomość Java oraz minimum 5–8 lat doświadczenia komercyjnego . Zaawansowana znajomość Spring Framework / Spring Boot . Doświadczenie z Hibernate oraz JPA . Praktyczna znajomość projektowania i implementacji REST API . Doświadczenie w pracy z usługami SOAP . Znajomość Oracle Database oraz Oracle SQL . Doświadczenie w integracjach systemowych, w tym synchronizacji danych, pracy z kontraktami oraz wersjonowaniem usług. Praktyczne doświadczenie z RabbitMQ oraz Maven . Doświadczenie w pracy w metodykach Agile/Scrum . Język angielski na poziomie minimum B2 . Mile widziane: Doświadczenie w obszarze DevOps , w tym CI/CD, pipelines oraz współpraca z zespołami operacyjnymi. Znajomość PostgreSQL . Praktyczne doświadczenie w pracy w Scrum. Znajomość UML . Doświadczenie w analizie systemowej. Udział w decyzjach architektonicznych. Doświadczenie w projektach finansowych lub raportowych.

🏢 Summary: Senior Java Developer role focused on designing and building high-performance, scalable backend systems in a distributed microservices environment for the financial sector. The position involves developing REST APIs, processing large data volumes, and contributing to architecture and CI/CD in cloud-based environments. The role requires strong expertise in Java, Spring, distributed systems, and Kubernetes. 🗂️ Requirements: Minimum 10 years of software development experience, Very good knowledge of Java and Spring, Strong understanding of REST APIs, HTTPS, microservices, and message queues, Ability to design high-availability, scalable, high-performance systems, Very good knowledge of relational databases and SQL, Knowledge of distributed systems and data processing, Hands-on experience with Kubernetes and cloud platforms (GCP preferred), Familiarity with CI/CD pipelines, Experience working in Agile methodologies, Fluent Polish and English, Residence in Poland 📃 Skills: Java, Spring, REST, HTTPS, Microservices, MQ, SQL, Kubernetes, GCP, CI/CD, Agile, DistributedSystems, DataProcessing 🏢 Description: 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. Your 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 Requirements 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 What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Senior Java Developer role focused on designing, developing, and maintaining backend services for an enterprise financial application. The position involves building REST and SOAP integrations, implementing business logic and data access layers, and ensuring high quality, scalability, and stability of solutions in an Agile environment. The role is fully remote within an enterprise setting. 🗂️ Requirements: Minimum 5–8 years commercial experience in Java, Very good knowledge of Java, Advanced knowledge of Spring Framework, Advanced knowledge of Spring Boot, Experience with Hibernate, Experience with JPA, Experience in designing and implementing REST API, Experience with SOAP services, Knowledge of Oracle Database, Knowledge of Oracle SQL, Experience in system integrations, Experience with data synchronization, Experience with service contract management and versioning, Experience with RabbitMQ, Experience with Maven, Experience working in Agile/Scrum, English level B2 minimum 📃 Skills: Java, Spring, SpringBoot, Hibernate, JPA, REST, SOAP, Oracle, SQL, RabbitMQ, Maven, Agile, Scrum 🏢 Description: Podsumowanie roli: Senior Java Developer będzie odpowiedzialny za rozwój, integrację oraz utrzymanie usług backendowych dla korporacyjnej aplikacji finansowej. Rola koncentruje się na projektowaniu i implementacji wysokiej jakości rozwiązań technologicznych, integracji systemowej oraz zapewnieniu stabilności i skalowalności usług w środowisku enterprise. Zakres obowiązków: Projektowanie, rozwój i integracja usług backendowych w technologii Java. Implementacja rozwiązań backendowych zgodnie z wymaganiami biznesowymi i technicznymi. Tworzenie oraz utrzymywanie API REST. Praca z usługami SOAP oraz integracjami systemowymi. Implementacja logiki biznesowej oraz warstwy dostępu do danych. Pisanie i utrzymywanie testów jednostkowych. Współpraca z analitykami, architektami oraz zespołem projektowym. Udział w pracach zespołu Agile/Scrum. Dbanie o jakość kodu, stabilność rozwiązań oraz zgodność z dobrymi praktykami developerskimi. Praca zdalna w środowisku enterprise. Wymagania: Bardzo dobra znajomość Java oraz minimum 5–8 lat doświadczenia komercyjnego . Zaawansowana znajomość Spring Framework / Spring Boot . Doświadczenie z Hibernate oraz JPA . Praktyczna znajomość projektowania i implementacji REST API . Doświadczenie w pracy z usługami SOAP . Znajomość Oracle Database oraz Oracle SQL . Doświadczenie w integracjach systemowych, w tym synchronizacji danych, pracy z kontraktami oraz wersjonowaniem usług. Praktyczne doświadczenie z RabbitMQ oraz Maven . Doświadczenie w pracy w metodykach Agile/Scrum . Język angielski na poziomie minimum B2 . Mile widziane: Doświadczenie w obszarze DevOps , w tym CI/CD, pipelines oraz współpraca z zespołami operacyjnymi. Znajomość PostgreSQL . Praktyczne doświadczenie w pracy w Scrum. Znajomość UML . Doświadczenie w analizie systemowej. Udział w decyzjach architektonicznych. Doświadczenie w projektach finansowych lub raportowych.

🏢 Summary: Senior Java Developer role focused on building and optimizing high-performance transactional and banking systems in a 100% remote environment. The position involves designing scalable backend solutions using modern Java and Spring technologies, integrating messaging systems, and ensuring system reliability through advanced monitoring and CI/CD practices. This opportunity targets experienced engineers ready to contribute to complex financial platforms in an agile setting. 🗂️ Requirements: Minimum 5 years of Java development experience, Strong experience with Java 21+, Strong experience with Spring Boot 3, Solid knowledge of PostgreSQL, Experience with CI/CD tools (GitLab, Jenkins), Experience with OpenShift deployments, Experience with RabbitMQ and Kafka, Experience with ELK stack and Dynatrace, Experience with JUnit 5, Mockito, RestAssured, Experience working in Agile (Scrum, Kanban), Good command of Polish, Communicative English proficiency, Legal right to work in the European Union 📃 Skills: Java, Spring, PostgreSQL, Redis, RabbitMQ, Kafka, ELK, Dynatrace, GitLab, Jenkins, OpenShift, JUnit, Mockito, RestAssured, SQL, R 🏢 Description: Unleash innovation in financial technology — shape the future of transactional systems with expertise and precision! 100% remote work. As a Senior Java Developer , you will be working for our client, a leading player in the financial services industry dedicated to delivering cutting-edge transactional and banking systems. You will contribute to the development of robust, scalable solutions that power high-stakes online financial operations, driving digital transformation and operational excellence. This role offers a unique chance to advance your career within an innovative environment that values technical mastery and strategic thinking. Your main responsibilities: Design, develop, and optimize complex backend systems using Java 21+ and Spring Boot 3, adhering to best practices and high-quality standards. Work with domain-driven design (DDD) to implement scalable and maintainable software solutions. Manage and optimize data solutions utilizing PostgreSQL, Redis, and integration tools like RabbitMQ and Kafka. Utilize tools such as ELK stack, Dynatrace, and CI/CD pipelines (GitLab, Jenkins, OpenShift) to ensure system performance and reliability. Conduct thorough testing and validation using JUnit 5, Mockito, and RestAssured to deliver resilient software releases. Collaborate with agile teams (Scrum, Kanban) for iterative development and continuous improvement. Contribute analytical insights and high-level problem-solving skills to support transaction systems in a fast-paced financial environment. You're ideal for this role if you have: At least 5 years of experience in Java development, with a strong background in Spring Boot 3 and Java 21+. Solid understanding of database technologies, particularly PostgreSQL. Practical experience with CI/CD tools such as GitLab, Jenkins, and deployment on OpenShift. Familiarity with message brokers like RabbitMQ and Kafka. Knowledge of monitoring and logging tools (ELK stack, Dynatrace). Experience with automated testing frameworks including JUnit 5, Mockito, and RestAssured. Strong analytical skills and experience working within agile methodologies (Scrum, Kanban). It is a strong plus if you have: Experience in the finance sector and knowledge of financial risk modeling. Certifications related to cloud, database management, or software development. Basic knowledge of R language and SQL testing. Language required for the role: Polish (good command), English (communicative proficiency). Eligibility to work in Europe: Only candidates with an existing legal right to work within the European Union will be considered for this role.

🏢 Summary: Senior Java Developer role focused on building and modernizing secure, scalable backend platforms and microservices for investment management products. The position offers hands-on architectural ownership, production support responsibilities, and collaboration across Agile engineering and business teams in a hybrid Krakow model. 🗂️ Requirements: 6+ years of commercial Java enterprise application development, Java 17+ proficiency, Advanced Spring and Spring Boot experience, REST API and backend service development experience, Microservices architecture knowledge, Object-oriented design, clean code, and design patterns, SQL query analysis and optimization, Docker and Kubernetes production experience, Kafka or event-streaming platform familiarity, CI/CD and DevOps practices experience, Secure coding and application security knowledge, Security scanning or vulnerability detection tools experience, Logging, monitoring, metrics, and distributed tracing familiarity, Business-critical production support and troubleshooting experience, Cross-functional collaboration with architects, QA, DevOps, and business teams, Very good English communication skills 📃 Skills: Java, Spring, SpringBoot, REST, SQL, Docker, Kubernetes, Kafka, CI/CD, DevOps, Microservices, Agile 🏢 Description: Senior Java Developer Design and develop core backend platforms and scalable microservices. Contribute to new product development and modernization initiatives, influence architectural decisions, and work closely with engineering and business stakeholders throughout the software development lifecycle. This is a senior, hands-on engineering role with strong ownership expectations. Shape technical solutions, improve engineering practices, and ensure business-critical systems remain secure, reliable, maintainable, and ready to scale. Quick Facts • Stack: Java 17+, Spring, Spring Boot, REST APIs, SQL, Docker, Kubernetes, Kafka, CI/CD • Salary: 27,000–30,000 PLN gross on a Contract of Employment • Working model: Hybrid — 3 days per week from the office; 2 days per week for parents of children up to 4 years old • Recruitment process: 30-minute recruiter call; 1-hour technical interview with the manager; 1-hour technical interview with the team Responsibilities Backend Development • Design, develop, and maintain enterprise-grade applications using Java 17+, Spring, and Spring Boot. • Build scalable microservices and REST APIs supporting investment management products. • Apply object-oriented design, clean code principles, and established software design patterns. • Develop solutions that meet demanding performance, reliability, security, and maintainability standards. Architecture and Technical Excellence • Contribute to architectural decisions and translate business requirements into effective technical solutions. • Drive technical improvements across existing platforms and modernization initiatives. • Participate in code reviews and promote consistent engineering standards across the team. • Ensure solutions follow secure coding principles and software development lifecycle best practices. Cross-Functional Collaboration • Partner with architects, QA engineers, DevOps specialists, and business stakeholders throughout the development lifecycle. • Work within a cross-functional Agile team delivering web, backend, and mobile platform capabilities. • Communicate technical decisions, risks, and dependencies clearly to technical and non-technical stakeholders. • Support knowledge sharing and mentor other engineers where required. Delivery and Production Ownership • Troubleshoot and resolve complex technical and production issues. • Improve logging, monitoring, metrics, and distributed tracing across services. • Enhance CI/CD pipelines to streamline software delivery and deployment. • Drive continuous improvements in development processes, engineering tooling, and operational reliability. Requirements Technical Expertise • At least 6 years of hands-on commercial experience developing enterprise applications in Java. • Strong practical knowledge of Java 17 or newer. • Advanced experience with Spring, Spring Boot, REST APIs, and backend service development. • Strong understanding of microservices architecture, object-oriented design, clean code, and software design patterns. • Solid SQL skills, including practical experience with query analysis and optimization. • Production experience with Docker and Kubernetes. • Familiarity with messaging or event-streaming platforms such as Kafka. • Experience working with CI/CD pipelines and modern DevOps practices. Security and Production Engineering • Understanding of secure coding principles and common application security risks. • Experience using security scanning or vulnerability detection tools. • Familiarity with application logging, metrics, monitoring, and distributed tracing. • Experience troubleshooting and supporting business-critical production systems. Collaboration and Mindset • Proven ability to take ownership of technical solutions from design through production support. • Strong problem-solving skills and ability to resolve complex engineering challenges. • Ability to collaborate effectively with architects, QA, DevOps, and business teams. • Very good English communication skills. What We Offer • Private medical care • Life insurance • Professional training and certification support • Social fund benefits platform • Stable employment with a long-term contract Join a senior engineering team building secure and scalable platforms for the investment management industry. Submit your CV in English.

🏢 Summary: Senior Java Developer role focused on building and evolving a globally distributed trading platform for fixed income products. The position involves designing and implementing high-quality software components, supporting platform optimization and migration, and collaborating with international IT teams. It requires strong expertise in Core Java, Spring, and SQL within enterprise-level systems. 🗂️ Requirements: At least 5 years of experience in software development, Strong knowledge of Core Java, Proficiency in SQL, Proficiency in Spring framework, Strong written and verbal English, Ability to work collaboratively in a global team environment 📃 Skills: Java, SQL, Spring, JMS, ORM, REST, WebServices, TCP/IP, Bash, Perl, Python, C++, Redis, Multithreading, Networking, Scrum, Kanban 🏢 Description: We are seeking a Senior Java Developer to join a leader in the financial domain who has been successfully involved in trading financial (Fixed income) products for many years. As part of this, a globally distributed, component-based IT system has been built. It is written mainly in Java and incorporates many enterprise technologies/standards (e.g., JMS, ORM, Spring, WebServices, REST), but also integrates other technologies, like TCP/IP networking, bash scripting, Perl, Python or even C++. Responsibilities Design and implement software components according to requirements Take responsibility for ensuring the delivery and quality standards of software Spend time with the customer to determine and understand deliverables Support business in platform rationalization and optimization Continue removing technical debt and platform standardization Support business in migration to strategic platform Work with other IT teams across the globe Requirements At least 5 years of working experience in software development Strong knowledge of Core Java Proficiency in SQL and Spring framework Good communication and time management skills Team player mentality with a pragmatic approach to software development Strong written and verbal English Nice to have Skills in multithreading, networking and web services in Java Familiarity with JMS and Redis Capability to acquire and capture requirements with attention to software quality Understanding of investment banking domain Understanding of Agile principles (experience in Scrum or Kanban) We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview We will reach out to selected candidates exclusively

🏢 Summary: Senior Java Developer role focused on building and maintaining core banking systems using modern Java and event-driven microservices architecture. The position involves developing scalable services, evolving legacy systems, and contributing to a complex microservices ecosystem within a CI/CD environment. Remote work model with strong emphasis on high-quality, domain-driven design in the financial sector. 🗂️ Requirements: 7+ years of Java development experience, Experience in banking or financial services, Deep knowledge of Java 21/25, Strong knowledge of Spring Boot, Experience with MongoDB, Strong experience with Apache Kafka, Experience with event-driven architecture, Proficiency in REST APIs, Proficiency with Git, Proficiency with Maven, Experience with CI/CD tools, Experience with microservices architecture, Understanding of Domain-Driven Design (DDD), Ability to work with legacy systems, Communicative Polish, Legal right to work in the EU 📃 Skills: Java, Spring, SpringBoot, MongoDB, Kafka, REST, Git, Maven, Jenkins, OpenShift, JaCoCo, SonarQube, CQRS, DDD, Hexagonal, Microservices, CI/CD 🏢 Description: Empower scalable financial systems — drive innovation in banking technology! Warsaw-based opportunity with remote work model (up to 5 days remote per week). As a Senior Java Developer , you will be working for our client, a leader in the banking industry, dedicated to building and maintaining core domain systems that serve internal clients. Join us in creating robust, event-driven microservices that shape the future of banking infrastructure, fostering seamless digital experiences and technological excellence. Your main responsibilities: Develop and maintain core banking services using Java 21/25, Spring Boot 4.0, and MongoDB. Design and implement event-driven architectures utilizing Apache Kafka and Schema Registry. Collaborate on microservices ecosystem, ensuring high quality and scalability. Work with legacy code and contribute to system evolution within a complex environment. Ensure code quality through tools like JaCoCo and SonarQube, following best practices. Participate in CI/CD pipelines using OpenShift, Jenkins, and Maven. Apply Domain-Driven Design (DDD), CQRS, and Hexagonal architecture principles. Work independently within a mono-repo approach, managing multiple repositories and shared libraries. You're ideal for this role if you have: 7+ years of experience in Java development, ideally within banking or financial services. Deep knowledge of Java (21/25), Spring Boot, and MongoDB. Strong experience with Kafka and event-driven architecture. Proficiency with REST APIs, Git, Maven, and CI/CD tools. Ability to work with legacy systems and develop scalable solutions. Solid understanding of microservices architecture and domain modeling. It is a strong plus if you have: (optional) Certifications or experience in OpenShift, Jenkins, or related cloud technologies. Language Required for the role: Communicative Polish. 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.