Senior Java Developer

🏢 Summary: Senior/Mid+ Java Developer role focused on transforming a high-scale credit decisioning platform from monolith to microservices, building mission-critical applications and event-driven systems. The position involves designing scalable Java solutions within the Spring and Hibernate ecosystem, managing complex SQL data flows, and developing high-performance APIs. The role also includes working in a CI/CD-driven Scrum environment with international collaboration. 🗂️ Requirements: Strong experience with Java 8/17/21, Experience with Spring and Hibernate in large-scale applications, Strong knowledge of SQL, Experience building RESTful APIs, Experience with Git, Maven, and TeamCity, Familiarity with microservices architecture, Familiarity with Apache Kafka, Experience working in Scrum environment, English and Polish proficiency 📃 Skills: Java, Spring, Hibernate, SQL, REST, Git, Maven, TeamCity, Kafka, Microservices, CI/CD, Scrum 🏢 Description: Join our engineering team to drive the transformation of high-scale credit decisioning platforms. We are looking for an owner-minded developer ready to evolve our systems from monolith to microservices. Your Impact: Modernizing Architecture: Transition core processes from monolithic structures to modular microservices to enhance scalability and domain ownership. High-Scale Java Dev: Design mission-critical apps using Java 8/17/21 within a robust Spring & Hibernate ecosystem. Data & API Engineering: Manage complex SQL-based data flows and build high-performance APIs to connect internal and external global partners. Event-Driven Systems: Leverage Apache Kafka to build resilient, asynchronous communication between distributed services. Engineering Excellence: Maintain CI/CD standards using Git, Maven, and TeamCity within an international Scrum environment. Global Collaboration: Communicate technical concepts clearly in Polish and English to ensure smooth delivery across markets. What You Bring: Expertise: Solid experience in Java 8/17/21 and large-scale Spring + Hibernate applications. Technical Core: Strong command of SQL, RESTful APIs, and Git/Maven/TeamCity environments. Architectural Mindset: Familiarity with microservices and Apache Kafka (or a strong desire to learn). Seniority: You are a Senior or an ambitious Mid+ developer with a proactive, growth-oriented attitude.

🏢 Summary: Remote B2B offer for an experienced Java Developer to design and build scalable REST APIs and broker integrations using Spring-based technologies within a microservices architecture. The role focuses on high-quality API development, SQL database management, and system design in a Scrum team. The position involves international collaboration and participation in architecture and integration initiatives. 🗂️ Requirements: Minimum 5 years of experience with Java (8/17/21), Strong knowledge of Spring Framework, Strong knowledge of Hibernate, Experience with REST API design and development, Experience with microservices architecture, Strong SQL and relational database expertise, Knowledge of architectural and design patterns, Experience with Git, Experience with TeamCity, Polish proficiency, English proficiency 📃 Skills: Java, Spring, Hibernate, SQL, REST, Microservices, Git, TeamCity, Maven, Scrum, RelationalDatabases, DesignPatterns 🏢 Description: Work model: remote, visit in the office once a quater in Warszawa Rate: up to 150 PLN/h (B2B contract) We are looking for a motivated Java Developer to join our team focused on building and evolving API integrations with external brokers. The ideal candidate will possess a strong background in Java, Spring-based technologies, and a deep understanding of systems integration and microservices architecture. You will contribute significantly to developing high-quality, maintainable APIs that enable seamless integration with various partners across multiple international markets. We work in a cross-functional team utilizing Scrum methodology. Main Responsibilities Design and build high-quality APIs using Java (8/17/21) and Spring-based technologies, ensuring scalability and maintainability. Develop and enhance broker integrations, contributing to business growth and market expansion. Contribute to modern service-oriented architecture design applying microservices knowledge. Manage SQL databases and ensure data consistency and reliability in applications. Utilize tools like Git, Maven, and TeamCity for continuous integration and code delivery. Collaborate on frontend API usability to ensure practical and well-structured solutions. Communicate effectively in Polish and English to facilitate international collaboration. Key Requirements At least 5 years of experience with Java (8/17/21 ) Deep knowledge of the Spring Framework and Hibernate. Strong SQL and relational database expertise. Strong problem-solving skills and proactive attitude. Experience in clean REST API design and development. Familiarity with microservices architecture. Knowledge of architectural and design patterns. Experience with Git and TeamCity. Polish and English proficiency. Nice to Have Experience with React for effective collaboration with frontend developers. Experience with large-scale applications using Maven. Knowledge of Apache Kafka. Experience with Domain-Driven Design (DDD) or Hexagonal architecture. Experience in decoupling monolithic applications. Background in the fintech industry. Recruitment process: 1. Live coding session 2. System design session 3. HR interview

🏢 Summary: Opportunity for an experienced Java Developer to build and optimize high-performance financial systems, including trading platforms, risk management tools, and real-time market data solutions. The role focuses on developing scalable, mission-critical applications using modern Java and enterprise technologies. You will contribute to robust, low-latency systems in a fast-paced capital markets environment. 🗂️ Requirements: 5+ years of Java development experience (Java 8+), Strong experience with Spring Framework, Experience with relational and NoSQL databases (Oracle, PostgreSQL, MongoDB), SQL optimisation and database performance tuning skills, Experience with Maven or Gradle, Proficiency with Git, Experience designing and implementing RESTful APIs, Experience with messaging systems (JMS, RabbitMQ, Kafka) 📃 Skills: Java, Spring, Oracle, PostgreSQL, MongoDB, SQL, Maven, Gradle, Git, REST, JMS, RabbitMQ, Kafka 🏢 Description: About the Role We're seeking an experienced Java Developer to contribute to innovative financial technology solutions that drive the global capital markets. You'll be part of a collaborative team developing mission-critical systems including high-performance trading platforms, sophisticated risk management tools, regulatory compliance frameworks, and real-time market data processing engines trusted by top-tier financial institutions worldwide. What You'll Do Design and develop robust, scalable financial applications using modern Java technologies Build and optimise high-throughput trading systems and market data processing solutions Collaborate with cross-functional teams to deliver risk management and compliance platforms Implement RESTful services and integrate messaging systems for real-time data flow Optimise database performance and ensure system reliability in fast-paced trading environments Required Qualifications 5+ years of hands-on Java development experience with modern versions (Java 8 and above) Strong expertise in Spring Framework and enterprise application development Proven experience with relational and NoSQL databases including Oracle, PostgreSQL, and MongoDB Demonstrated skills in SQL optimisation and database performance tuning Proficiency with build automation tools ( Maven, Gradle ) Experience with Git version control and collaborative development workflows Solid understanding of RESTful API design and implementation Knowledge of enterprise messaging systems ( JMS, RabbitMQ, Kafka ) Be happy to work in a hybrid model - 3 days per week in the office in Central Krakow

🏢 Summary: The offer is for an experienced Java Developer to design, develop, and maintain scalable backend systems and microservices in an international, hybrid work environment. The role focuses on building high-performance, secure enterprise applications, contributing to architecture decisions, and supporting CI/CD and DevOps practices. It is suited for engineers experienced in modern Java ecosystems and distributed systems. 🗂️ Requirements: Commercial experience in Java software development, Strong knowledge of Java and Spring Boot, Experience building RESTful APIs and microservices, Knowledge of Spring Framework, Hibernate, and JPA, Experience with relational databases (Oracle or PostgreSQL), Understanding of software design principles and application architecture, Experience with Git, Familiarity with Docker and CI/CD tools, Experience working in Agile (Scrum/Kanban) environments 📃 Skills: Java, Spring, SpringBoot, Hibernate, JPA, REST, Microservices, Oracle, PostgreSQL, Git, Docker, CICD, Agile, Scrum, Kanban 🏢 Description: 📍 Location: Kraków (Hybrid – 6–8 days per month in the office) 📄 Contract Type: B2B / Employment Contract 🌍 International Environment About the Role We are looking for an experienced Java Developer to join a dynamic team delivering scalable, enterprise-grade solutions. You will be involved in designing, developing, and maintaining modern backend systems, contributing to architecture decisions, and building robust applications that support critical business processes. This is an excellent opportunity for engineers who enjoy working with modern technologies, microservices, cloud-ready solutions, and high-performance distributed systems. Responsibilities Design, develop, and maintain scalable backend applications and microservices using Java technologies. Build and enhance secure, reliable, and high-performing APIs. Participate in system architecture and technical design discussions. Develop high-quality, maintainable, and well-tested code. Collaborate with cross-functional teams to deliver business-critical solutions. Troubleshoot, analyze, and resolve application and production issues. Perform code reviews and contribute to engineering best practices. Support application performance, scalability, and reliability initiatives. Participate in Agile ceremonies, including sprint planning, refinement, and retrospectives. Contribute to CI/CD processes and DevOps practices. Requirements Commercial experience in software development using Java. Strong knowledge of Java and Spring Boot. Experience building RESTful APIs and microservice-based applications. Good understanding of Spring Framework, Hibernate, and JPA. Experience working with relational databases such as Oracle or PostgreSQL. Familiarity with NoSQL databases is a plus. Understanding of software design principles and application architecture. Experience with Git and modern software development practices. Familiarity with Docker and CI/CD tools. Experience working in Agile environments (Scrum/Kanban). Strong analytical and problem-solving skills. Good communication skills and ability to work collaboratively within a team. Nice to Have Experience with cloud platforms such as AWS, Azure, or GCP. Knowledge of Kubernetes and container orchestration. Exposure to frontend technologies such as React, Angular, or JavaScript. Experience with event-driven architectures and messaging systems. Understanding of security best practices in software development. What We Offer Opportunity to work on modern, large-scale enterprise solutions. Long-term projects in an international environment. Flexible hybrid working model. Exposure to modern technologies, cloud solutions, and microservices architecture. Professional growth opportunities and access to technical challenges. Collaborative culture focused on quality, innovation, and continuous improvement. Employment contract or B2B cooperation model.

🏢 Summary: Long-term opportunity for a Full-Stack Java Developer to modernize a business-critical Collateral & Margining platform within a global investment banking environment. The role focuses on building and maintaining Java-based microservices while contributing to a transformation from monolithic systems to a cloud-native architecture. You will work across the full SDLC using modern Agile, DevOps, and automated testing practices. 🗂️ Requirements: Strong experience with Java 17/21, Hands-on experience with Spring Boot and microservices architecture, Solid knowledge of PostgreSQL, Experience with DevSecOps pipelines, Experience working in Agile and DevOps environments, Strong TDD practice using JUnit and integration testing, Experience with Cucumber for E2E testing, Experience delivering complex systems to production, Experience with REST APIs and messaging systems 📃 Skills: Java, Spring, SpringBoot, SpringCloud, Angular, TypeScript, PostgreSQL, Microservices, REST, MQ, Solace, Ansible, JUnit, Cucumber, DevSecOps, CICD, Redis, Hazelcast, Coherence, GCP, AWS, Hystrix, Eureka, Zuul, Sleuth, Feign, Ribbon, HTML5, GitHubCopilot 🏢 Description: Full‑Stack Java Developer – Global Investment Banking Platform (Kraków) B2B| Krakow | Hybrid: 6 days per month A global investment bank is expanding its engineering hub in Kraków and is looking for an experienced Senior and Mid Level Full‑Stack Java Developer’s to join a long‑term programme modernising a business‑critical Collateral & Margining platform used across global markets. This is a chance to join a mature engineering organisation driving a multi‑year transformation from monolithic systems to a modern, microservices‑based architecture. You’ll work on high‑impact technology used by thousands of institutional clients worldwide, while contributing to a brand‑new platform built with the latest open‑source tooling. About the Team & Platform The Collateral technology group delivers end‑to‑end solutions for a cross‑asset trading and risk environment. The team is currently: Supporting a large‑scale, business‑critical monolithic platform Building a new microservices‑based collateral platform using modern engineering practices Accelerating adoption of Agile, DevOps, AI‑assisted development, CI/CD, and cloud-native tooling Tech stack includes: Java 17/21, Spring Boot 3.5, Spring 6, Spring Cloud, Angular 17, TypeScript, REST APIs, Message Queues, Ansible, and modern open‑source infrastructure. Role Overview As a Senior Full‑Stack Java Developer, you will: Design, build, and maintain high‑quality Java microservices Contribute across the full SDLC, from design to production support Apply Agile and DevOps principles to improve delivery velocity Use TDD (JUnit), integration tests, regression tests, and Cucumber for E2E scenarios Collaborate closely with QA, product, and architecture teams Mentor junior engineers and support knowledge‑sharing across the team Support production systems: incident resolution, monitoring, and problem management Build automation and tooling to improve operational efficiency Essential Experience Strong experience with Java 17/21, Spring Boot, and microservices Solid knowledge of PostgreSQL and DevSecOps pipelines Experience working in Agile and/or DevOps environments Strong communication skills and ability to collaborate across global teams Proven experience delivering complex systems from concept to production Ability to translate functional requirements into scalable technical solutions Strong TDD discipline (JUnit, integration tests, Cucumber) Desirable Skills Experience with AI‑assisted development tools (e.g., GitHub Copilot) Spring Cloud components (Hystrix, Eureka, Zuul, Sleuth, Feign, Ribbon) Distributed caching/in‑memory data stores (Redis, Hazelcast, Coherence) REST APIs and messaging (MQ, Solace) Automated deployment tools (Ansible) TypeScript, Angular, HTML5 Cloud exposure (GCP/AWS) Why Join? Work on a mission‑critical global banking platform Contribute to a major multi‑year transformation Join a stable, established engineering organisation with modern practices Influence architecture, tooling, and engineering standards Long‑term project with strong investment and roadmap clarity

🏢 Summary: Expert Java Engineer role focused on building scalable, high-performance financial systems using microservices, cloud-native technologies, and distributed architectures in a hybrid Kraków-based environment. The position involves backend development, architecture contributions, CI/CD and Kubernetes operations, and collaboration with global engineering teams. Candidates with strong Java, cloud, and distributed systems expertise, especially in banking or capital markets, are preferred. 🗂️ Requirements: 5+ years of software engineering experience, Strong Java experience, Experience with REST APIs, Experience with microservices architecture, Experience with messaging systems, Strong SQL knowledge, Hands-on Kubernetes experience, Experience with cloud platforms, Knowledge of NoSQL databases, Experience with distributed systems, Experience with CI/CD pipelines, Experience with Agile methodologies, Understanding of scalability and high-availability architectures, Experience in banking or capital markets domain 📃 Skills: Java, REST, Microservices, RabbitMQ, SQL, Kubernetes, GCP, NoSQL, CI/CD, Agile, Go, Rust, ClickHouse 🏢 Description: We are looking for an Expert Java Engineer to join a global team building and evolving mission-critical financial systems. This role is ideal for an experienced back-end engineer who enjoys designing scalable solutions, influencing architecture, and working on high-performance distributed systems. We offer: 📍 Location: Kraków, Poland (Hybrid – 6–8 office visits per month)* 💰 Rate: Up to 190 PLN/h (B2B) * Hybrid Model Based in Kraków with 6–8 office days per month . Candidates living outside Kraków are welcome to apply. If you are willing to travel to the office, we will cover your travel and accommodation costs . Responsibilities: Design and develop scalable microservices and REST APIs. Build high-performance, highly available back-end applications. Develop and operate cloud-native solutions on Kubernetes and GCP. Contribute to architecture decisions and technical roadmaps. Optimize databases, integrations, and distributed systems. Drive engineering best practices across CI/CD, security, and software quality. Collaborate closely with business stakeholders and global engineering teams. Mentor developers and support technical delivery. We are looking for: 5+ years of professional software engineering experience. Strong hands-on experience with Java. Solid experience with REST APIs and microservices architecture. Experience with messaging systems (RabbitMQ or similar). Strong SQL database knowledge. Hands-on experience with Kubernetes. Experience working with cloud platforms (preferably GCP). Knowledge of NoSQL databases and distributed systems. Experience with CI/CD pipelines and Agile methodologies. Strong understanding of scalability, performance, and high-availability architectures. Experience in the banking or capital markets domain, preferably related to trade lifecycle, post-trade processing, or FX products. Nice to Have Experience with Go or Rust. Experience with ClickHouse or other analytical databases. Front-end development experience. Knowledge of API governance. Experience with large-scale data processing environments. This role is not perfectly suited for you, but you have a friend who would fit? Recommend your friend and get up to 5000 zł! Referral Program: Talent from your network Don't hesitate and apply now! 32/6/2026/r/3612

🏢 Summary: Senior API Developer role focused on designing, building, and operating scalable, resilient APIs in a cloud-native banking environment using Java and Spring Boot. The position involves delivering high-performance backend services, integrating multiple API styles, and ensuring quality, security, and maintainability. It offers hybrid work in Krakow with impact on modern digital banking platforms. 🗂️ Requirements: 5+ years of experience building APIs and backend services in Java, Strong expertise in Spring Boot, Experience with Maven build tool, Hands-on experience designing REST, GraphQL, and SOAP APIs, Experience with API tools: Postman, Swagger UI/OpenAPI, SoapUI, Strong understanding of backend architecture (service design, data access, caching, resilience), Proficiency with JSON, XML, XAML, Experience in troubleshooting, performance tuning, and defect fixing, Fluent English (spoken and written), Legal right to work in the European Union 📃 Skills: Java, SpringBoot, Maven, REST, GraphQL, SOAP, Postman, Swagger, OpenAPI, SoapUI, JSON, XML, XAML, IntelliJ 🏢 Description: Empower the Future of Digital Banking — Lead the Development of Cutting-Edge APIs in a Cloud-Native Ecosystem! Krakow-based opportunity with hybrid work model (up to 3 days remote per week). As a Senior API Developer – Java and Cloud-Native Architecture , you will be working for our client, a leading financial institution committed to innovative, secure, and scalable digital solutions. You will help design, build, and operate resilient APIs that fuel HSBC’s digital products and internal platforms, shaping the future of banking technology with modern Java and cloud-native patterns. This role offers a unique chance to work on impactful projects that define the banking experience of tomorrow while growing your engineering expertise in a dynamic environment. Your main responsibilities: Build and evolve high-performing, scalable APIs and backend services using Java, Spring Boot, Maven, primarily within IntelliJ. Collaborate effectively with cross-functional teams—including engineers, product owners, architects, and testers—to deliver reliable services aligned with business objectives. Design APIs following established standards (REST, GraphQL, SOAP) with attention to versioning, backward compatibility, and user experience. Integrate with third-party and internal APIs, ensuring system resilience, observability, and robust error handling. Develop and support event-driven services using Kafka, including schema evolution, topic design, and message reliability patterns. Build cloud-ready services on AWS, considering deployment and runtime aspects for Kubernetes/EKS, Fargate, Redis, RDS, S3, and Route 53. Own quality assurance by writing automated tests, conducting API testing, and troubleshooting production issues, embracing a “you build it, you run it” mindset. Produce and maintain clear API documentation (OpenAPI/Swagger) and operational runbooks where needed. Contribute to engineering standards emphasizing security-by-design, performance, and maintainability, driving continuous improvement. You're ideal for this role if you have: 5+ years of experience building APIs and backend services in Java. Strong expertise with Spring Boot and build tools like Maven. Deep understanding of backend architecture concepts such as service design, data access, caching, and resilience. Proven experience with API architectural styles (REST, GraphQL, SOAP) and integration patterns. Hands-on experience with API tooling (Postman, Swagger UI/OpenAPI, SoapUI). Proficiency working with data formats like JSON, XML, XAML. A track record of diagnosing issues, fixing defects, and enhancing system performance and reliability. Excellent collaboration skills and the ability to communicate complex technical ideas clearly. It is a strong plus if you have: Experience with event-driven architecture at scale (Kafka streams, schema registry, idempotency, exactly-once/at-least-once patterns). Background building and operating services on AWS (Kubernetes/EKS, Fargate, Redis, RDS, S3, Route 53). Familiarity with CI/CD pipelines, observability tools (logging, metrics, tracing), and secure coding practices. Strong critical thinking with a pragmatic, delivery-focused mindset. Language Required for the role: Fluent English command (spoken and written). 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: Mid-Level Java API Developer role focused on designing, building, and maintaining secure, scalable APIs and backend services for digital banking platforms using Java and cloud-native architecture. The position involves developing event-driven services, integrating with internal and third-party systems, and deploying solutions on AWS. You will collaborate within a cross-functional team to deliver high-quality, resilient, and well-documented API solutions. 🗂️ Requirements: Minimum 4 years of experience building APIs and backend services in Java, Strong experience with Spring Boot, Experience with Maven build tool, Solid understanding of backend architecture and service design, Knowledge of REST, GraphQL, and SOAP standards, Experience integrating APIs and handling JSON and XML data formats, Ability to develop and support event-driven services with Kafka, Experience building cloud-ready services on AWS, Ability to write automated tests and perform API testing, Experience with OpenAPI/Swagger documentation, Good command of English, Legal right to work in the European Union 📃 Skills: Java, Spring, Maven, REST, GraphQL, SOAP, Kafka, AWS, Kubernetes, EKS, Fargate, Redis, RDS, S3, Route53, JSON, XML, Postman, Swagger, OpenAPI, SoapUI, IntelliJ 🏢 Description: Unleash the power of modern development — drive innovation through scalable API solutions! Krakow-based opportunity with hybrid work model. As a Mid-Level Java API Developer , you will be working for our client, a leader in digital banking services. You will design, build, and run secure, scalable APIs that support HSBC’s digital products and internal platforms. Collaborating within a cross-functional engineering team, you'll enable reliable services using cutting-edge Java and cloud-native architecture, including event-driven patterns. This role offers an exciting chance to contribute to financial technology innovation and advance your career in a dynamic environment. Your main responsibilities: Build and evolve high-performing, scalable APIs and backend services using Java, Spring Boot, Maven, primarily in IntelliJ Collaborate with engineers, product owners, architects, and testers to deliver well-designed services aligned with business goals Design APIs following industry standards and patterns (e.g., REST, GraphQL, SOAP), ensuring versioning and backward compatibility Integrate with third-party and internal APIs, focusing on resilience, observability, and error handling Develop and support event-driven services using Kafka, including topic design, schema evolution, and message reliability Build cloud-ready services on AWS platforms such as Kubernetes/EKS, Fargate, Redis, RDS, S3, and Route 53 Write automated tests, perform API testing, troubleshoot production issues, and contribute to continuous quality improvements Maintain clear API documentation (OpenAPI/Swagger) and create runbooks as needed Contribute to engineering standards focused on security, performance, and maintainability You're ideal for this role if you have: At least 4 years of experience building APIs and backend services in Java Strong experience with Spring Boot and Maven development tooling In-depth understanding of backend architecture, including service design, data access, caching, and resilience patterns Knowledge of API standards such as REST, GraphQL, and SOAP Familiarity with API tooling like Postman, Swagger UI/OpenAPI, SoapUI Comfort working with JSON and XML data formats Proven ability to diagnose issues, fix defects, and enhance system reliability Excellent collaboration skills and clear technical communication It is a strong plus if you have: (optional) Experience with event-driven architecture at scale (Kafka streams, schema registry, idempotency, exactly-once/at-least-once delivery) Hands-on experience building and operating services on AWS (Kubernetes/EKS, Fargate, Redis, RDS, S3) Knowledge of CI/CD pipelines, observability tools (logging, metrics, tracing), and secure coding practices Strong critical thinking with a pragmatic, delivery-oriented mindset Language Required for the role: Good command of 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.

🏢 Summary: Senior Java Developer / Full Stack Engineer role focused on building a modern API platform for business banking within an international Agile team. The position centers on backend development using Java and Spring Boot in a distributed Open Banking environment. Hybrid work model with collaboration across multiple international markets. 🗂️ Requirements: 5+ years of recent experience in software development, Strong experience with Java 21, Practical experience with Spring Boot, Experience in Microservices architecture, Experience with Oracle databases, Experience with Git, Experience with Maven, Experience with Jenkins, Ability to work in Agile team environment 📃 Skills: Java, Spring, Microservices, Oracle, Git, Maven, Jenkins, Hibernate, JPA, TypeScript, Angular, React, Docker, Kubernetes, MQ 🏢 Description: We are looking for a Senior Java Developer / Full Stack Engineer to join an international Agile team working on the development of a modern API platform for business banking customers. The role is based in Tricity (Gdańsk or Gdynia) with a hybrid model (3 days per week in the office). We are also open to candidates based in Warsaw. RESPONSIBILITIES As a Java Developer / Full Stack Engineer, you'll join a strategic digital transformation initiative focused on delivering modern API-based services for business customers. You will be part of an Open Banking development hub responsible for building a new, unified company API platform used across multiple international markets. You will work within a dedicated Agile team in a distributed digital hub environment. REQUIREMENTS 5+ years of continued recent experience in development and software engineering, preferably in large corporate institutions Strong collaboration skills with a passion for working in a team-oriented environment Solid understanding and practical experience with modern backend technologies including: Java 21, Spring Boot, Microservices, Oracle, Git, Maven and Jenkins. NICE TO HAVE This is a backend-focused role, with frontend expertise being an additional asset Experience with Java Reactive programming. Hibernate/JPA Experience building highly available applications, TypeScript, Modern Frontend Framework (Angular/ React), Docker, Kubernetes, MQ. WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract. Hybrid work from Gdańsk/Gdynia or Warsaw (3 times a week in the office). Current support during the cooperation Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care, life insurance, Multisport card). WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch. DO YOU HAVE ANY QUESTIONS? Contact the recruiter responsible for this process directly. Ilona WójcikJunior IT Delivery Consultantilona.wojcik@speedapp.pl

🏢 Summary: Java Developer role focused on designing and maintaining scalable microservices-based backend systems using Spring technologies. The position involves building high-performance RESTful services, improving existing systems, and collaborating closely with cross-functional teams in a hybrid work model. 🗂️ Requirements: Minimum 2 years of experience with Java, Hands-on experience with microservices architecture, Experience with Spring and Spring Boot, Knowledge of REST APIs and integration patterns, Ability to work onsite in Warsaw 2 days per week 📃 Skills: Java, Microservices, Spring, SpringBoot, REST, Kubernetes, AWS, Azure, GCP, Kafka, RabbitMQ 🏢 Description: We’re looking for a Java Developers with solid experience in microservices architecture to join our growing team in Łódź. If you enjoy building scalable backend systems and like collaborating face-to-face a couple of days a week, this role is for you. Responsibilities Design, develop, and maintain Java-based microservices Build scalable, high-performance backend solutions Collaborate with product owners, architects, and other developers Write clean, testable, and well-documented code Participate in code reviews and technical discussions Support and improve existing systems Requirements Experience with Java minimum 2 years + Hands-on experience with microservices architecture Experience with Spring / Spring Boot Knowledge of REST APIs and integration patterns Ability to work onsite in Warsaw 2 days per week Nice to Have Experience with Kubernetes Cloud experience (AWS, Azure, or GCP) Knowledge of messaging systems (Kafka, RabbitMQ) Experience working in Agile/Scrum teams What We Offer Hybrid work model (2 days onsite in Warsaw) Competitive salary and benefits Modern tech stack and real impact on products Friendly, collaborative team culture Opportunities for learning and professional growth