Senior Java Developer – remote work

🏢 Summary: Remote Senior Java Developer role focused on modernising legacy Java systems in a fintech environment using AI-assisted analysis, refactoring, and testing. The position involves building AI-powered CI/CD pipelines, developing MCP servers and LLM-based engineering tools, and improving API performance and reliability. The role targets measurable system improvements in high-reliability financial systems. 🗂️ Requirements: 6+ years Java backend experience, Strong Spring Boot expertise, Experience modernising legacy systems at scale, Background in fintech, banking or trading systems, Strong multithreading and concurrency knowledge, Experience with AI-assisted development tools, Strong API design knowledge, Experience with microservices architecture 📃 Skills: Java, Spring, SpringBoot, Multithreading, Concurrency, Locking, Atomics, Microservices, APIs, CICD, GitHub, Copilot, Claude, LLM, MCP, Testing, Refactoring, Security, Fintech, Banking 🏢 Description: Senior Java Developer | Remote| Fintech Client You will: Modernise legacy Java services using AI-assisted analysis, refactoring and testing Build AI-powered CI/CD pipelines with automated code review, test generation and security scanning Develop MCP servers and LLM-based tooling for other engineering teams Ship measurable results: faster APIs, better performance, higher reliability You bring: 6+ years of Java backend experience with strong Spring Boot expertise Hands-on experience modernising legacy systems at scale Background in banking, fintech, trading or similar high-reliability domain Solid multithreading knowledge in production systems (concurrency, locking, atomics) Practical use of AI dev tools – Claude Code, GitHub Copilot or similar Strong API design and microservices architecture knowledge English B2+

🏢 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: Oferta B2B dla Senior Java Developera z doświadczeniem w AI i LLM, obejmująca rozwój backendu w Java/Spring Boot oraz integrację rozwiązań opartych na modelach językowych w środowisku produkcyjnym. Rola obejmuje projektowanie architektur agentowych, wdrażanie narzędzi AI wspierających development oraz współpracę ekspercką między zespołami. Praca w pełni zdalna ze stawką 170 PLN/h + VAT. 🗂️ Requirements: Minimum 5 lat doświadczenia w Java, Minimum 5 lat doświadczenia ze Spring Boot, Minimum 1 rok doświadczenia z LLM w środowisku produkcyjnym, Doświadczenie z architekturami agentowymi i orkiestracją, Znajomość Spring AI lub LangChain4j, Doświadczenie z LLM API, Doświadczenie z embeddingami, Doświadczenie z bazami wektorowymi, Znajomość observability i bezpieczeństwa AI, Doświadczenie w specification-driven development, Umiejętność prowadzenia warsztatów technicznych, Znajomość REST, Znajomość JPA, Znajomość Hibernate, Znajomość PostgreSQL, Doświadczenie w Agile, Znajomość Git, Znajomość JIRA, Wykształcenie techniczne STEM 📃 Skills: Java, Spring, SpringBoot, LLM, SpringAI, LangChain4j, REST, JPA, Hibernate, PostgreSQL, Git, JIRA, ReAct, MCP, Copilot, Claude, Embeddingi, Agile, AI, API 🏢 Description: kontrakt B2B stawka 170 pln/h + VAT praca zdalna Poszukujemy doświadczonego Senior Java Developera z umiejętnościami w obszarze sztucznej inteligencji (AI). Osoba na tym stanowisku będzie odpowiedzialna za projektowanie i rozwój systemów backendowych oraz integrację rozwiązań opartych na modelach językowych. Kluczowe umiejętności to: Java, Spring Boot oraz doświadczenie w pracy z LLM w środowisku produkcyjnym. Główne obowiązki Projektowanie i rozwój systemów backendowych w Java / Spring Boot Integracja rozwiązań opartych na LLM (API, embeddingi, bazy wektorowe) w środowisku produkcyjnym Budowa i rozwój architektur agentowych oraz multi-agent workflows (np. ReAct, MCP) Wdrażanie narzędzi AI w SDLC (GitHub Copilot, Claude Code, Copilot Extensions) Tworzenie i rozwój rozwiązań wspierających developerów (AI-assisted development) Współpraca między zespołami jako ekspert AI (rola konsultacyjna + praktyczna) Prowadzenie warsztatów i edukacja zespołów w zakresie AI Zapewnienie jakości, bezpieczeństwa i observability rozwiązań AI Wymagania kluczowe Minimum 5 lat doświadczenia w Java / Spring Boot Minimum 1 rok doświadczenia z LLM w środowisku produkcyjnym Praktyczne doświadczenie z architekturami agentowymi i orkiestracją (np. ReAct, MCP) Znajomość Spring AI lub LangChain4j Doświadczenie z LLM API, embeddingami i bazami wektorowymi Znajomość zagadnień observability oraz bezpieczeństwa w kontekście AI Doświadczenie w specification-driven development Umiejętność prowadzenia warsztatów technicznych Dobra znajomość REST, JPA, Hibernate, PostgreSQL Doświadczenie pracy w Agile, znajomość Git, JIRA Wykształcenie techniczne (STEM) Mile widziane umiejętności Angular Python lub TypeScript Doświadczenie w enterprise integrations LLM Znajomość DevOps, BPM, Linux

🏢 Summary: Long-term B2B contract for a Senior Java Developer to design and implement complex Java-based solutions in large-scale enterprise or public sector projects. The role involves technical leadership, mentoring, and working in a fully remote model without business travel. The position requires strong backend expertise and experience with modern Java ecosystems and cloud-native tools. 🗂️ Requirements: Minimum 5 years of professional experience in Java, Strong knowledge of Spring Boot, Experience with RESTful APIs, Experience with JUnit and Mockito, Experience with OpenShift, Experience with Helm, Experience with Spring Data or JPA, Minimum 1 year experience with Oracle or PostgreSQL, Minimum 2 years experience with Gradle, Experience in large-scale enterprise or public sector projects, Degree in Computer Science or equivalent, German C1, English minimum B1 📃 Skills: Java, Spring, SpringBoot, REST, JUnit, Mockito, OpenShift, Helm, JPA, SpringData, Oracle, PostgreSQL, Gradle, SQL 🏢 Description: Summary: The Senior Java Developer plays a crucial role in designing and implementing complex Java-based solutions, mentoring other team members, and contributing to large-scale projects in either the enterprise or public sectors. Remote work model Contract type : B2B, long-term- 48 months Business travels : No Salary Grids: 160-180 zł/h Main Responsibilities: Design and implement complex Java-based solutions. Mentor junior developers and assist in team knowledge sharing. Manage and contribute to large-scale enterprise or public-sector projects. Key Requirements: Fluent in German (C1) and English (min. B1). Degree in Computer Science or equivalent. Minimum of 5 years of professional experience in Java Strong understanding of Spring Boot, RESTful APIs, testing frameworks (JUnit, Mockito) Experience in OpenShift and Helm charts and ORM frameworks like Spring Data or JPA Knowledge of Oracle or PostgreSQL (min. 1 year). Experience with Gradle for continuous integration (min. 2 years). Experience with large public sector projects or comparable private sector engagements. Nice to Have: Additional years of experience with core technologies beyond the stipulated minimum. Frontend experience with React and TypeScript, and understanding of Ajax (min. 1 year). Experience with complex enterprise application integration.

🏢 Summary: Oferta dla Senior Java Developera przy rozwoju nowoczesnych platform telewizyjnych i streamingowych opartych o architekturę mikroserwisową. Praca obejmuje rozwój i utrzymanie aplikacji Java, projektowanie nowych funkcjonalności oraz współtworzenie architektury rozwiązań. Możliwa praca zdalna lub hybrydowa z wynagrodzeniem do 150 PLN netto + VAT/h. 🗂️ Requirements: Minimum 4 lata doświadczenia komercyjnego w Java, Bardzo dobra znajomość Java Core, Znajomość wielowątkowości, niemutowalności i wzorców projektowych, Doświadczenie ze Spring Boot, Spring MVC, WebFlux, MyBatis i TestContainers, Znajomość SQL, NoSQL, Oracle, PostgreSQL, MongoDB i Redis, Doświadczenie z Apache Kafka i ORM, Doświadczenie z mikroserwisami i REST API, Znajomość Docker, Kubernetes, SOA i SSO, Znajomość JUnit, Mockito, Spock oraz testów wydajnościowych, Doświadczenie z Git, Bitbucket, GitLab, Jenkins i GitLab CI, Znajomość OWASP, Scrum, Jira i Confluence, Znajomość Linux/Unix oraz podstaw Bash lub Python, Doświadczenie z AWS, Znajomość praktyk DevOps, Komunikatywna znajomość języka angielskiego 📃 Skills: Java, Spring, WebFlux, MyBatis, TestContainers, SQL, NoSQL, Oracle, PostgreSQL, MongoDB, Redis, Kafka, ORM, Docker, Kubernetes, SOA, SSO, Okta, CAS, IAM, JUnit, Mockito, Spock, JMeter, K6, Git, Bitbucket, GitLab, Jenkins, OWASP, Scrum, Jira, Confluence, Linux, Unix, Bash, Python, AWS, EC2, S3, Lambda, CloudWatch, MSK, DevOps 🏢 Description: Poszukujemy Senior Java Developera do projektu realizowanego przez jednego z czołowych dostawców usług telewizji i streamingu w Europie. Klient rozwija nowoczesne platformy cyfrowe oraz rozwiązania wykorzystywane każdego dnia przez miliony użytkowników. Projekt prowadzony jest w oparciu o nowoczesne technologie, architekturę mikroserwisową i wysokie standardy jakości. Oferujemy Stawka do 150 PLN netto + VAT/h Praca zdalna lub hybrydowa (preferowane osoby mogące pracować z biura w Warszawie 1–3 dni w tygodniu) Obowiązki rozwój i utrzymanie aplikacji w Java, projektowanie oraz implementacja nowych funkcjonalności, udział w code review i konsultacjach technicznych, współtworzenie architektury rozwiązań. Wymagania min. 4 lata doświadczenia komercyjnego w Java (8–25) , bardzo dobra znajomość Java Core , wielowątkowości , niemutowalności oraz wzorców projektowych , praktyczne doświadczenie z Spring Boot , Spring MVC , WebFlux , MyBatis oraz TestContainers , znajomość SQL , NoSQL , Oracle , PostgreSQL , MongoDB , Redis , Apache Kafka oraz ORM , doświadczenie z mikroserwisami , REST API , Docker , Kubernetes , SOA oraz rozwiązaniami SSO (Okta, CAS, IAM) , znajomość JUnit , Mockito , Spock oraz narzędzi do testów wydajnościowych ( JMeter , K6 ), doświadczenie z Git , Bitbucket , GitLab , Jenkins oraz GitLab CI , znajomość OWASP , Scrum , Jira i Confluence , dobra znajomość środowiska Linux/Unix oraz podstaw Bash lub Python , doświadczenie z AWS ( IAM, EC2, S3, Lambda, API Gateway, CloudWatch, MSK ), znajomość praktyk DevOps , komunikatywna znajomość języka angielskiego . Ta rola nie jest dla Ciebie, ale masz znajomego, który by się sprawdził? Poleć go i zgarnij nawet 5000 zł. Referral Program: Talent from your network Nie zwlekaj i zaaplikuj już teraz!

🏢 Summary: Senior Java Developer role focused on developing, maintaining, and modernizing employee-facing platforms in a complex enterprise environment within the financial sector. The position involves working with both modern and legacy technologies, operational support, troubleshooting, and ensuring platform stability for approximately 9,000 daily users. 🗂️ Requirements: 5+ years of Java development experience, Experience in complex enterprise environments, Ability to work with modern and legacy solutions, Collaborative mindset, Pragmatic approach to problem solving 📃 Skills: Java, WebSphere, Tomcat, JBoss 🏢 Description: On behalf of a client in the financial sector, we are looking for a Senior Java Developer. The consultant will join the team responsible for developing and maintaining employee-facing platforms. The team comprises software developers, a Product Owner, an IT architect, and a manager, collectively supporting approximately 9,000 employees. The application landscape includes modern and legacy technologies, ensuring a robust platform used daily. Main Responsibilities: Contribute to the development, maintenance, and operation of the team’s solutions Learn and understand the domain, architecture, and surrounding integrations Participate in operational activities, including monitoring, patching, and ensuring high availability Support troubleshooting, analysis, and technical improvements Help simplify and modernize existing solutions Contribute to knowledge sharing and long-term continuity Help ensure a stable and reliable platform used daily by approximately 9,000 employees Key Requirements: Strong Java development competencies (5+ years of experience) Experience in complex enterprise environments Ability to navigate both modern and legacy solutions. Pragmatic and collaborative mindset Nice to Have: Experience with enterprise application platforms such as WebSphere, Tomcat, JBoss, or similar technologies is considered an advantage, as large parts of the application landscape rely on WebSphere-based solutions.

🏢 Summary: Senior Java Developer role focused on building and integrating AI-powered financial solutions using Java, Spring Boot, and large language models in a fully remote environment. The position involves developing scalable AI systems, implementing agent-based architectures, and supporting AI-driven development workflows across cross-functional teams. 🗂️ Requirements: 5+ years of professional IT experience, Strong expertise in Java, Strong expertise in SpringBoot, 1+ year of hands-on experience deploying LLMs in production, Knowledge of agent-based architectures, Experience with SpringAI, Experience with LangChain4j, Experience with LLM API integrations, Experience with embeddings, Experience with vector databases, Familiarity with AI observability tools, Ability to lead technical workshops, STEM background, Good command of Polish, Communicative English, Legal right to work in the European Union 📃 Skills: Java, SpringBoot, SpringAI, LangChain4j, LLMs, ReAct, MCP, Copilot, Claude, APIs, Embeddings, VectorDB, Observability, Angular, Python, TypeScript 🏢 Description: Empower AI innovation—shape the future of intelligent finance solutions! 100% remote work. As a Senior Java Developer , you will be working for our client, a leader in the financial technology industry, focusing on integrating advanced AI tools into scalable systems. You will contribute to pioneering AI adoption using Java and Spring Boot within a collaborative, cross-team environment. Join us and help shape the future of intelligent finance solutions while accelerating your career growth. Your main responsibilities: Develop and optimize Java-based applications and AI-powered features employing Spring Boot, ensuring high performance and reliability. Lead the adoption and integration of AI-SDLC tools such as GitHub Copilot, Claude Code, and Copilot Extensions within development workflows. Design and implement agentic and multi-agent system architectures, including ReAct patterns, MCP, and orchestration frameworks. Collaborate on integrating LLMs via APIs, embeddings, vector databases, and ensuring observability and security in AI systems. Conduct workshops and knowledge-sharing sessions on AI workflows, agentic development, and security best practices. Contribute to specification-driven development processes, ensuring scalable and maintainable codebases. Support continuous delivery and deployment pipelines with a focus on AI system integration. Engage in cross-team collaboration to foster innovative AI-driven solutions in finance. You're ideal for this role if you have: 5+ years of professional experience in IT, with extensive Java and Spring Boot expertise. At least 1+ year of hands-on experience deploying Large Language Models (LLMs) in production environments. Deep knowledge of agent-based architectures such as ReAct, MCP, and orchestration frameworks. Experience with Spring AI, LangChain4j, LLM API integrations, embeddings, and vector databases. Familiarity with observability tools for AI systems and development of specification-driven solutions. Proven ability to lead workshops and facilitate technical discussions. A background in STEM disciplines. It is a strong plus if you have: (optional) Experience with Angular, Python, or TypeScript. Knowledge of enterprise LLM integrations and advanced AI security measures. Language required for the role: Polish: Good command English: Communicative level Eligibility to work in: 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 focused on building scalable REST APIs and advanced backend systems using modern Java and Spring technologies. The position involves designing, developing, and testing secure enterprise solutions in a hybrid work model. It offers the opportunity to contribute to large-scale digital transformation initiatives. 🗂️ Requirements: 5+ years of professional experience in Java development, Strong expertise in Java 17+, Strong expertise in Spring Boot 3/4+, Experience with Git, Kubernetes, Jenkins, Flyway, RabbitMQ, and PostgreSQL, Experience in building and securing REST APIs, Ability to perform unit and integration testing, Ability to analyze requirements and translate them into technical solutions, Fluent English (written and spoken), Legal right to work in the European Union, Availability to work in a hybrid model (up to 2 remote days per week) 📃 Skills: Java, Spring, SpringBoot, Git, Kubernetes, Jenkins, Flyway, RabbitMQ, PostgreSQL, REST, UnitTesting, IntegrationTesting, Architecture, Security, English 🏢 Description: Unleash innovation with scalable enterprise solutions — shape the future of digital transformation! Warsaw-based opportunity with hybrid work model (up to 2 remote days per week). As a Senior Java Developer , you will be working for our client, a leading player in the technology industry committed to delivering cutting-edge software solutions. You will contribute to building robust, scalable REST APIs and advanced backend systems, empowering organizations to transform their digital landscapes and drive business success. This is your chance to grow your career at the forefront of technological innovation. Your main responsibilities: Analyze requirements and convert them into comprehensive technical tasks, supporting the development process. Propose and challenge technical solutions to ensure optimal implementation. Develop functionalities in Java 17+ using Spring Boot 3/4+ in line with architectural and security standards. Conduct thorough unit and integration testing to ensure code quality. Create and update technical and architectural documentation for ongoing project clarity. Share knowledge with team members to foster continuous learning and improvement. Stay updated on technological advancements and suggest innovative enhancements. You're ideal for this role if you have: 5+ years of professional experience in Java development or relevant fields. Strong expertise in Java 17+ and Spring Boot (version 3 or 4+). Experience with Git, Kubernetes, Jenkins, Flyway, RabbitMQ, and PostgreSQL. Proven ability to analyze complex requirements and translate them into technical solutions. Solid understanding of REST API development, architecture, security, and best practices. Excellent communication skills in fluent English. Ability to work in a hybrid model, with up to 2 remote days per week. It is a strong plus if you have: Knowledge of containerization and orchestration tools or certifications. Experience working within Agile teams or with CI/CD pipelines. Language Required for the role: Fluent English, written and spoken. Eligibility to work in Europe: 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: Remote B2B contract for a Senior Java Developer focused on Savings & Investments products, including tax calculation engines, integrations, and reporting tools. The role involves full software development lifecycle participation, collaboration with stakeholders, mentoring developers, and contributing to engineering best practices. Benefits include private healthcare, Multisport card, e-learning access, and group life insurance. 🗂️ Requirements: 6+ years of Java development experience, Strong knowledge of Java 21, Strong knowledge of Spring Boot, Experience with Spring Framework, Experience with Hibernate, PostgreSQL expertise, SQL expertise, Knowledge of JMS, MQ, or similar messaging technologies, Experience with OpenAPI, Experience with AsyncAPI, Familiarity with Git, Familiarity with CI/CD pipelines, Understanding of OOP principles, Understanding of design patterns, Strong analytical skills, Strong communication skills 📃 Skills: Java, Spring, SpringBoot, Hibernate, PostgreSQL, SQL, JMS, MQ, OpenAPI, AsyncAPI, Git, CI/CD, OOP 🏢 Description: Senior Java Developer Location: Remote Start Date: ASAP / up to 30 days notice period Contract Type: B2B via Experis Responsibilities Develop and maintain Java applications for Savings & Investments products Build tax calculation engines compliant with international regulations Create integrations, business process solutions, and customer reporting tools Participate in the full software development lifecycle Collaborate with business stakeholders and mentor other developers Contribute to code reviews and engineering best practices Requirements 6+ years of Java development experience Strong knowledge of Java 21 and Spring Boot Experience with Spring Framework and Hibernate PostgreSQL and SQL expertise Knowledge of JMS, MQ, or similar messaging technologies Experience with OpenAPI and AsyncAPI Familiarity with Git and CI/CD pipelines Understanding of OOP principles and design patterns Strong analytical and communication skills Benefits Fully remote work Private healthcare (Medicover) Multisport card Access to e-learning platforms Group life insurance

🏢 Summary: Senior Java Full-Stack Developer role for international projects, focused on end-to-end development of web applications in a cloud-based environment. The position involves backend and frontend development, design and testing activities, and collaboration within agile teams. It is a fully remote B2B contract with long-term cooperation. 🗂️ Requirements: Bachelor’s degree in Engineering, IT, Science, or related technical field, Minimum 5 years of commercial experience in corporate IT, Strong experience with Java and Java frameworks, Commercial experience with frontend technologies, Solid knowledge of JavaScript, HTML5, CSS3, Experience with Angular, Knowledge of databases and SQL, Experience with REST and SOAP web services, Experience with AWS or Azure, Knowledge of Clean Code principles, Experience with unit testing, Experience with source code management, Experience with CI/CD and automated deployments, Very good English (spoken and written), Experience in agile (Scrum) environments 📃 Skills: Java, Spring, JavaScript, HTML5, CSS3, Angular, SQL, REST, SOAP, AWS, Azure, CI/CD, Git, Scrum 🏢 Description: Senior Java Full-Stack Developer – Remote Contract type: B2B Hourly rate: 160–170 PLN/h Location: Remote We are looking for an experienced Senior Java Full-Stack Developer to join international implementation projects. The role involves end-to-end development of web applications, close collaboration with agile teams, and active participation in design and testing activities. The position is well suited for a developer who values clean code, quality, and teamwork in a cloud-based environment. Responsibilities Work as a Senior Java Full-Stack Developer across multiple implementation streams Develop and maintain web-based applications using Java and modern frontend technologies Write and maintain unit tests to ensure software quality Collaborate with agile team members to achieve project and client goals Participate in design reviews, testing activities, and technical discussions Requirements Bachelor’s degree in Engineering, IT, Science, or another technical field Minimum 5 years of commercial experience in a corporate IT environment Strong experience with Java and commonly used Java frameworks Commercial experience with frontend technologies and web-based applications Solid knowledge of JavaScript, HTML5, CSS3, and responsive single-page application design Experience with Angular Knowledge of databases and SQL Experience with web services and APIs (REST, SOAP) Experience deploying applications on cloud platforms such as AWS or Azure Knowledge of Clean Code principles and unit testing Experience with source code management, CI/CD, and automated deployments Very good English, both spoken and written Experience working in international and agile (Scrum) environments Strong communication and collaboration skills Nice to have Experience with Kafka or RabbitMQ Hands-on experience with microservices architecture Knowledge of Docker and Kubernetes Relevant certifications (Java, Spring, SQL, AWS, Azure) Knowledge of German or another European language Benefits Medicover healthcare package Multisport card Access to an e-learning platform Group life insurance We offer Fully remote cooperation Competitive hourly rate: 160–170 PLN/h (B2B) Long-term cooperation in international projects Modern technology stack and agile working environment