Senior Java Engineer @ Winged IT
1 week ago
At least 6 years of experience with Java (version 17 and up); Framework knowledge: Spring Framework (Spring Boot, Spring MVC), Hibernate or JPA; Tools: Docker and CI/CD tools (e.g., Jenkins, GitLab); Databases: Strong SQL skills with hands-on experience in relational databases; Testing: Proficiency in unit testing (JUnit, Mockito) and integration testing tools; Cloud & DevOps: AWS cloud infrastructure and microservices architecture; System Design: Solid experience with microservices architecture, scalability, and system integration; Strong educational background in Computer Science, Information Technology, or a related field; Experience in driving complex projects from start to finish, guiding and mentoring teams; Experience in contributing to architectural design and system-wide decision-making with proven track record of both technical and organizational impact; Language proficiency: Advanced English (minimum B2 level). Nice to have: Others Java frameworks and Spring Security; Kubernetes and CI/CD best practices; NoSQL databases, PostgreSQL, and database performance tuning; Performance testing and automation frameworks experience; DevOps tools (Terraform, CDK) and monitoring tools (Prometheus, Datadog); Understanding of distributed systems, event-driven architecture (Kafka, RabbitMQ); Awareness of security best practices, API design (RESTful, GraphQL), and container orchestration tools. Do you want to play a key role in revolutionizing the future of finance? Join a global leader in deferred payments, with over 85 million active users and 2.5 million transactions processed daily As a pioneer in modern payment solutions, our client is developing innovative methods that streamline the shopping experience, enhance transaction security, and expand the availability of purchasing options. We're seeking individuals eager to achieve remarkable results and share their bold vision to redefine the future of payments and fintech. Send us your CV - we can’t wait to meet you Employer: Klarna Location: Warsaw (hybrid work: 2-3 days in the office) Rate: 170 - 195 PLN per hour Cooperation model: B2B or Employment Contract Start date: ASAP Duration: long-term agreement ,[To work within a key problem space, addressing the client's immediate needs by designing, developing, and deploying backend services that prioritize scalability, high availability, and low latency;, To collaborate and grow in a dynamic and autonomous environment while working in small, agile and cross functional teams;, To use the latest technologies to solve real problems for customers at a massive scale;, To be part of a team that will take full operational responsibility for the services that you own, and potentially take part in an on-call rotation;, To share your knowledge and build creative solutions while helping the team evolve best practices.] Requirements: Java, Spring, Docker, AWS, Spring Security, Kubernetes, NoSQL, PostgreSQL, Terraform, Prometheus, Datadog, Kafka, RabbitMQ, GraphQL, JUnit, Mockito, Jenkins, GitLab, Hibernate, CI/CD, REST Tools: Jenkins, Agile. Additionally: Small teams, International projects, Flat structure, In-house trainings, Modern office, Mobile phone, Startup atmosphere.
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Lead Java Engineer @ Winged IT
1 week ago
Warsaw, Czech Republic Winged IT Full timeYour skills and experiences: Proficiency with Java and Spring Boot, with hands-on experience in backend development; Expert with PostgreSQL and architecting and building robust systems; Proficient with cloud technologies, especially AWS; Adept in distributed and financial systems, capable of anticipating and mitigating issues preemptively; Independent, able...
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Lead JavaScript Engineer @ Winged IT
1 week ago
Warsaw, Czech Republic Winged IT Full timeKafka Expertise: Demonstrate in-depth knowledge of Kafka, including its configuration, traffic management, and the production/consumption of topics; Node.js, TypeScript, and Jest Proficiency: Utilize deep understanding and hands-on experience with Node.js, TypeScript, and Jest for building and testing applications; Database Mastery: Showcase expert-level...
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Senior Java
7 days ago
Remote, Warsaw, Czech Republic Square One Resources Full timeStrong expertise in Oracle databases Solid experience with Java 8–20 years of overall professional experience Good communication and problem-solving skills We are looking for an experienced specialist (8–20 years of experience) with expertise in both Java development and Oracle database administration. The ideal candidate would be a Senior Java Developer...
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Senior Java Developer @ ITMAGINATION
5 days ago
Warsaw, Czech Republic ITMAGINATION Full timeMin. 6 years of experience in Java Development Very deep understanding of Code Java (8) and Spring Boot and Solid understanding of OO principles Experience in RESTful API techniques Experience in SOAP based services Solid understanding of and experience with multi-threading and asynchronous programming Experience designing and building...
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Warsaw, Czech Republic Link Group Full time7+ years of professional experience in Java development Strong hands-on skills in Java, Spring Boot, Reactive programming (RxJava) Proven experience with Kafka in production systems Solid understanding of event-driven architecture and data serialization Practical experience with microservices, containerization, and cloud deployment (OpenShift /...
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Remote, Warsaw, Czech Republic Square One Resources Full time8+ years of professional software engineering experience with Java and enterprise systems. Proven experience leading or significantly contributing to modernization projects (e.g., monolith-to-modular/microservices, migration to cloud, refactoring legacy systems). Strong understanding of software architecture, design patterns, and system scalability....
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Java Fullstack Developer @ Experis Polska
2 weeks ago
Warsaw, Czech Republic Experis Polska Full timeWhat you’ll bring ✅ Solid understanding of Agile development processes ✅ Previous experience in similar development roles ✅ Strong communication skills ✅ Analytical mindset and accountability for owned work items Must have General EJB/J2EE knowledge Programming skills in Java, JavaScript (React / Angular / jQuery; Vue 3 is a plus, but not...
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Warsaw, Czech Republic Box Inc. Full timeWho you are: 12+ years of professional software development experience with an understanding of best practices 6+ years experience as a Software Engineering Manager, with experience managing managers, leading teams owning high-scale production services Bachelor's/Master's degree or foreign equivalent in Computer Engineering, Computer Science, Electrical...
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Warsaw, Czech Republic Box Inc. Full time**Our compensation structure is the base salary and equity in the form of restricted stock units. We are an AI-first company. This means you approach your work with a growth mindset and find ways to leverage AI to help make faster, smarter decisions that will 10X your impact at Box. 5+ years of professional software development experience Have experience...
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Java Developer
5 days ago
Warsaw, Czech Republic ITMAGINATION Full timeProficient in Java SE/EE with min 3 years of experience in developing scalable applications. Preferable experience in Java 11 or higher. Strong understanding of object-oriented programming and microservice architecture. Hands-on experience with Spring Boot, Spring Data, Spring and Spring Cloud. Experience in designing and developing...
