Senior Java Developer

🏢 Summary: Java Developer role for a healthcare mobile and web platform, focused on building and extending backend functionality within a large multi-module system. The position involves working with Java 17, Spring Boot, messaging, persistence, and REST APIs in an international environment. 🗂️ Requirements: Strong Java knowledge, Proficiency with core Java features, Experience with Collections Framework, Experience with concurrency, Experience with Java standard library, Experience with Spring ecosystem, Experience with multi-module Maven projects, Experience with messaging systems, Experience with MongoDB, Experience with relational databases, Experience with RESTful API design, Experience with JUnit 5, Experience with Mockito, Good English communication skills 📃 Skills: Java, Java17, Spring, SpringBoot, Maven, JMS, ActiveMQ, MongoDB, SQL, SpringData, REST, JUnit5, Mockito, FHIR, HAPIFHIR, Concurrency, Collections 🏢 Description: We are looking for an experienced Java Developer to join a healthcare project. The product is a mobile app and web platform. The developer will actively contribute to building and extending this functionality as part of the team. We are looking for someone with strong, demonstrable Java knowledge and confidence in core language features, the collections framework, concurrency, and the standard library. The developer should be comfortable working within a large multi-module Maven project built on Java 17 and Spring Boot. Practical experience with: Spring ecosystem (dependency injection, transaction management, event-driven patterns, caching, security) Messaging with JMS / ActiveMQ MongoDB and relational persistence (Spring Data) RESTful API design and inter-service communication JUnit 5 and Mockito for testing Experience with healthcare data standards (FHIR / HAPI FHIR) is a plus but not required. As the client is international , good English communication skills are required .

🏢 Summary: Remote Java Developer role focused on building and maintaining cloud-native, microservices-based backend systems for digital healthcare in the pharmaceutical industry, leveraging AI and LLM tools to enhance development processes. The position involves designing REST APIs, ensuring high code quality, and contributing to AI-driven clinical and decision-support solutions. Work is fully remote with an AI-first engineering approach. 🗂️ Requirements: Minimum 5 years experience with Java 17+, Strong knowledge of JVM internals, concurrency, and memory management, Strong experience with Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Proven experience designing microservices architectures, Experience developing REST APIs, Hands-on experience with AI/LLM coding tools, Experience with AWS cloud services, Experience with observability tools, Proficiency with SQL and NoSQL databases, Experience with CI/CD pipelines, Proficiency with Git, Fluent Polish, Residing in Poland 📃 Skills: Java, JVM, SpringBoot, SpringMVC, SpringDataJPA, SpringSecurity, Microservices, REST, AWS, Grafana, OpenTelemetry, DataDog, SQL, NoSQL, Git, CICD, LLM, Copilot, Cursor, AI 🏢 Description: We are looking for an experienced Java Developer to work on innovative solutions in the pharmaceutical industry. Our systems support clinicians and patients worldwide, leveraging cloud-native platforms, microservices, and cutting-edge AI technologies such as large language models and intelligent agents that enhance the software development lifecycle. If you want to help shape the future of digital healthcare, working 100% remotely with an AI-first approach, this role is for you. Your tasks Develop and maintain backend services using Java/Spring Boot Apply AI tools to speed up refactoring, boilerplate generation, and debugging Design and develop REST APIs in a microservices architecture Automate unit, integration, and end-to-end testing with AI-assisted approaches Collaborate on CI/CD and code review processes, enhanced by AI tools Ensure high code quality, adherence to SOLID principles, and software best practices Contribute to projects in cutting-edge AI applications in pharma, e.g., clinical data analysis, intelligent decision support, and process automation Requirements Extensive experience (minimum 5 years) with Java 17+, JVM internals, concurrency, and memory management Strong knowledge of Spring Boot, including Spring MVC, Spring Data JPA, and Spring Security Proven expertise in designing and developing microservices-based applications Familiarity with AI/LLM tools to accelerate coding, refactoring, and bug fixing (e.g., Copilot, Cursor) Ability to leverage AI agents for automating unit tests, documentation, and PR descriptions Expertise with AWS cloud and observability tools such as Grafana, OpenTelemetry, or DataDog Proficiency with SQL and NoSQL databases, CI/CD pipelines, and Git version control Fluent Polish required Residing in Poland required 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: The role involves developing and maintaining cloud-native, microservices-based backend systems in Java for innovative pharmaceutical solutions, with a strong AI-first approach. The position focuses on building REST APIs, applying AI tools to enhance development processes, and contributing to high-quality, scalable healthcare platforms in a fully remote setup. 🗂️ Requirements: Minimum 5 years of experience with Java 17+, Strong knowledge of JVM internals, concurrency, and memory management, Strong knowledge of Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Proven experience in designing and developing microservices-based applications, Experience with AI/LLM coding tools (e.g., Copilot, Cursor), Ability to use AI agents for test and documentation automation, Experience with AWS cloud services, Experience with observability tools (Grafana, OpenTelemetry, DataDog), Fluency in English and Polish, Residing in Poland 📃 Skills: Java, Spring, SpringBoot, SpringMVC, SpringDataJPA, SpringSecurity, JVM, Microservices, REST, AWS, Grafana, OpenTelemetry, DataDog, Copilot, Cursor, AI, LLM 🏢 Description: We are looking for an experienced Java Developer to work on innovative solutions in the pharmaceutical industry. Our systems support clinicians and patients worldwide, leveraging cloud-native platforms, microservices, and cutting-edge AI technologies such as large language models and intelligent agents that enhance the software development lifecycle. If you want to help shape the future of digital healthcare, working 100% remotely with an AI-first approach, this role is for you. Your tasks Develop and maintain backend services using Java/Spring Boot Apply AI tools to speed up refactoring, boilerplate generation, and debugging Design and develop REST APIs in a microservices architecture Automate unit, integration, and end-to-end testing with AI-assisted approaches Collaborate on CI/CD and code review processes, enhanced by AI tools Ensure high code quality, adherence to SOLID principles, and software best practices Contribute to projects in cutting-edge AI applications in pharma, e.g., clinical data analysis, intelligent decision support, and process automation Requirements Minimum 5 years of experience with Java 17+, JVM internals, concurrency, and memory management Strong knowledge of Spring Boot, including Spring MVC, Spring Data JPA, and Spring Security Proven expertise in designing and developing microservices-based applications Familiarity with AI/LLM tools to accelerate coding, refactoring, and bug fixing (e.g., Copilot, Cursor) Ability to leverage AI agents for automating unit tests, documentation, and PR descriptions Expertise with AWS cloud and observability tools such as Grafana, OpenTelemetry, or DataDog Fluency in both English and Polish Residing in Poland required

🏢 Summary: Senior Java Developer role focused on building and maintaining scalable microservices and cloud-based digital products in the OTT/ECommerce industry within an Agile environment. The position involves backend development, architectural contributions, CI/CD support, and collaboration with cross-functional teams using modern Java and cloud technologies. Hybrid or remote work model based in Warszawa. 🗂️ Requirements: 4+ years of Java development experience, Java 8-25, Multithreading, Immutability, Design patterns, Spring Boot, Spring MVC, WebFlux, MyBatis, TestContainers, SQL, NoSQL databases, Oracle, PostgreSQL, MongoDB, Redis, Kafka, Microservices architecture, RESTful APIs, Kubernetes, Docker, AWS, JUnit, Mockito, Spock, Jenkins, GitLab, Unix/Linux scripting, Polish language proficiency, Communicative English, Legal right to work in the EU 📃 Skills: Java, Spring, WebFlux, MyBatis, TestContainers, SQL, Oracle, PostgreSQL, MongoDB, Redis, Kafka, REST, Kubernetes, Docker, AWS, JUnit, Mockito, Spock, Jenkins, GitLab, Unix, Linux, SCRUM, Confluence, Git 🏢 Description: Empower digital transformation — craft scalable solutions with Java and cloud innovation! Warszawa-based opportunity with hybrid/ remote work model. As a Senior Java Developer , you will be working for our client, a leading player in the OTT/ECommerce industry, focused on delivering cutting-edge digital products within a dynamic and collaborative environment. Be part of a team that drives innovation, shapes future-ready architectures, and elevates user experiences through advanced microservices and cloud technologies. Your main responsibilities: Develop and maintain robust microservices using Java 8-25, ensuring high-quality code and optimal performance. Collaborate with cross-functional teams including Frontend Developers and Test Engineers within an Agile Nexus SCRUM framework. Conduct code reviews, contribute to architectural decisions, and mentor junior team members. Design, implement, and optimize RESTful architecture, utilizing tools like Kubernetes, Docker, and SOA principles. Support CI/CD pipelines and manage version control with Git, Jenkins, and related tools. Write comprehensive technical documentation in Confluence and contribute to knowledge sharing. Participate in technical consultations, problem-solving, and continuous improvement initiatives. Ensure application security following OWASP standards and best practices. You're ideal for this role if you have: At least 4 years of professional experience in Java development. Strong expertise in Java 8-25, multithreading, immutability, and design patterns. Experience with Spring Boot, Spring MVC, WebFlux, MyBatis, and TestContainers. Solid knowledge of SQL and NoSQL databases such as Oracle, PostgreSQL, MongoDB, Redis, and messaging systems like Kafka. Familiarity with microservices architecture, RESTful APIs, Kubernetes, Docker, and cloud services (AWS). Practical understanding of testing frameworks like JUnit, Mockito, and Spock. Experience with version control, CI/CD tools (Jenkins, GitLab), and scripting in Unix/Linux environments. Good command of the Polish language and communicative English skills. Ability to work independently with strong analytical and problem-solving skills. It is a strong plus if you have: Front-end skills (HTML, CSS, JavaScript, Angular/React/Vue.js). Certifications in AWS or other cloud platforms. Knowledge of DevOps practices and automation tools. Eligibility to work in the European Union: Only candidates with an existing legal right to work in the EU 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 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: The offer is for a Senior Java Developer to design, develop, and maintain Java-based applications in AWS cloud environments. The role involves building microservices, integrating APIs, ensuring code quality, and resolving performance issues within Agile teams. It focuses on delivering robust, scalable cloud-native solutions using modern Java technologies. 🗂️ Requirements: Proven experience in Java development, Experience with AWS cloud services, Experience developing microservices, Experience with API integration, Knowledge of Agile methodologies, Experience with code testing and code reviews, Ability to troubleshoot and resolve performance issues 📃 Skills: Java, AWS, Spring, Hibernate, Microservices, API, Agile, DevOps 🏢 Description: We are looking for a Senior Java Developer with solid experience in Java and Cloud. The ideal candidate should have exceptional skills in developing and implementing solutions using the latest technologies. Main Responsibilities: Develop and maintain Java-based applications in cloud environments. Collaborate with multidisciplinary teams to design and implement robust solutions. Perform testing and ensure code quality. Participate in code reviews and provide constructive feedback. Identify and resolve application performance issues. Key Requirements: Proven experience in Java development. Familiarity with cloud services (AWS). Knowledge of Agile development practices. Skills in API integration and microservices. Ability to solve problems effectively. Desirable: Experience with DevOps tools. Familiarity with Java frameworks such as Spring or Hibernate. Relevant certifications in Java or Cloud.

🏢 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: Senior Java Developer role focused on developing and maintaining large-scale insurance systems and complex integrations in a long-term, stable project. The position involves designing integration architecture based on SOA and EDA, working with microservices, and influencing technical standards. Remote work with occasional onsite presence in Warsaw. 🗂️ Requirements: Minimum 5 years of Java development experience (8/11/17/21), At least 3 years of experience with Spring or Spring Boot, Experience designing and maintaining integrations using Oracle Service Bus (OSB), Knowledge of DDD, CQRS, Hexagonal Architecture, EDA, Experience with microservices and basic knowledge of Kubernetes, Knowledge of GIT, Experience with relational databases (Oracle or PostgreSQL), Experience writing automated tests (JUnit, Spock, Groovy, Testcontainers), Experience working in Agile (Scrum) environment 📃 Skills: Java, Spring, SpringBoot, OSB, DDD, CQRS, Hexagonal, EDA, Microservices, Kubernetes, Git, Oracle, PostgreSQL, JUnit, Spock, Groovy, Testcontainers, SOA 🏢 Description: Our Client is an international organization from the insurance sector , delivering large-scale and complex IT projects with high quality standards.The project focuses on the development and maintenance of key business and integration systems supporting insurance processes and inter-system communication. We are looking for an experienced Senior Java Developer who wants to work on a stable, long-term project and have a real impact on architecture and technical standards. 📍 WORK MODE: Remote – 1 day per month onsite in Warsaw 🧑‍💻 YOUR RESPONSIBILITIES Developing and maintaining software for insurance systems, with a strong focus on business needs, reliability, and code quality Designing and developing system integrations using Oracle Service Bus (OSB) Participating in the development of integration architecture and inter-system communication based on SOA and EDA (Event-Driven Architecture) Ensuring best software engineering practices: Clean Code, code reviews, automated testing Close collaboration with backend, frontend, integration, and architecture teams in an Agile (Scrum) environment Creating and maintaining technical and business documentation 🔍 WHAT WE EXPECT FROM YOU Must-have: Minimum 5 years of experience in Java development (8/11/17/21) At least 3 years of experience with Spring / Spring Boot Hands-on experience in designing and maintaining integrations using Oracle Service Bus (OSB) Knowledge of architectural concepts: DDD, CQRS, Hexagonal Architecture, EDA Experience with microservices and basic knowledge of Kubernetes (K8s) Knowledge of GIT and relational databases ( Oracle or PostgreSQL ) Experience in writing automated tests (JUnit, Spock, Groovy, Testcontainers) Teamwork skills and experience working in Agile (Scrum) Nice-to-have: Knowledge of messaging systems ( Kafka, RabbitMQ, ActiveMQ ) Experience with monitoring tools ( Dynatrace, Splunk ) Knowledge of NoSQL databases ( MongoDB, Infinispan ) Experience with Rancher Experience working with SOA architecture and ESB-class integration systems 🤝 WHY JOIN? Real influence on architecture and technical decisions Stable, long-term project in the insurance sector Mature work environment, clear processes, and a partner-based collaboration model Short and transparent recruitment process: 2 stages (technical interview + hiring manager) Thank you for all applications! We will contact selected candidates. TQLO Sp. z o.o. – Employment Agency, KRAZ No. 33580

🏢 Summary: Senior Java Developer role focused on designing and delivering scalable Java-based solutions across the full software development lifecycle. The position involves close collaboration with business stakeholders, integration design using REST and messaging technologies, and ensuring high-quality engineering standards. The offer includes private medical care, sports card co-financing, dedicated consultant support, and an employee referral program. 🗂️ Requirements: Strong experience developing and maintaining Java-based applications, Strong knowledge of Java 21, Spring Boot, PostgreSQL, Experience with messaging technologies (JMS, MQ), Proficiency in Spring and Hibernate frameworks, Experience with relational databases and SQL, Knowledge of OpenAPI and AsyncAPI, Experience with Git and CI/CD pipelines, Strong understanding of software design patterns and OOP principles, Experience across full SDLC (analysis, design, development, testing, deployment), Ability to translate business and regulatory requirements into technical solutions, Experience in integrations using REST APIs and event-driven architectures, Experience mentoring developers and conducting code reviews, Practical experience with AI-assisted development and automation tools, Fluent English (spoken and written) 📃 Skills: Java, Spring, SpringBoot, Hibernate, PostgreSQL, SQL, JMS, MQ, REST, OpenAPI, AsyncAPI, Git, CI/CD, OOP 🏢 Description: As a recruitment company, DCG understands that every business is powered by experienced professionals. Our management style and partnership approach enable us to meet your needs and provide continuous support. Due to our ongoing growth and the large number of recruitment projects we undertake for our partners, we are currently looking for: Senior Java Developer Responsibilities: Participate in all phases of the software development lifecycle, including: Requirements analysis Architecture and solution design Development Testing Deployment Collaborate with business stakeholders and financial analysts to translate requirements into scalable and maintainable technical solutions Design and implement integrations using REST APIs, messaging technologies, and event-driven communication patterns Contribute to application quality through code reviews, technical guidance, and engineering best practices Mentor and support other developers as a technical sparring partner within the team Promote continuous improvement through the responsible use of AI-assisted development and automation Ensure application performance, maintainability, and compliance with established engineering standards Requirements: Strong experience in developing, enhancing, and maintaining Java-based applications Strong knowledge of: Java 21, Spring Boot and PostgreSQL Messaging technologies (e.g. JMS, MQ) Strong proficiency in Java frameworks, including Spring and Hibernate Experience designing and developing solutions supporting complex business processes Experience working with relational databases and SQL Knowledge of: OpenAPI and AsyncAPI Experience with version control systems (Git) and CI/CD pipelines Strong understanding of software design patterns and object-oriented programming principles Experience participating in the full software development lifecycle (SDLC): requirements analysis, solution design, development, testing and deployment Ability to translate business and regulatory requirements into technical solutions Experience collaborating with business stakeholders and analysts Experience mentoring developers, performing code reviews, and supporting solution design decisions Strong collaboration, analytical, and problem-solving skills Practical experience using AI-assisted development and automation tools to improve productivity, quality, and knowledge sharing Fluent English (spoken and written) Offer: Private medical care Co-financing for the sports card Constant support of dedicated consultant Employee referral program

🏢 Summary: Long-term remote contract for a Senior Java Developer to build and maintain scalable backend services and microservices for a UK-based media and advertising client. The role focuses on cloud-native development using modern technologies and emphasizes high-quality, well-tested code within Agile teams. Project runs until نهاية 2026 with possible extension. 🗂️ Requirements: Strong commercial experience with Java 21+, Strong commercial experience with Spring Boot, Experience designing and implementing REST APIs, Experience with Docker, Experience with Kubernetes, Experience with CI/CD pipelines, Knowledge of microservices architecture, Experience with TDD and/or BDD, Experience with SQL databases, Experience with NoSQL databases, Experience working in Agile teams, Good knowledge of Git, Experience with Jira 📃 Skills: Java, Spring, Docker, Kubernetes, Kafka, AWS, Terraform, Git, MySQL, SQL, NoSQL, REST, CI/CD, TDD, BDD, Jira 🏢 Description: Senior Java Developer (2 positions) 📍 Remote | UK-based Client (Media & Advertising) 🚀 Start: ASAP 📅 Project until the end of 2026 with possible extension We're looking for two Senior Java Developers to join a long-term project for a leading UK company in the Media & Advertising sector. You'll be working on scalable backend services and microservices using a modern cloud-native technology stack. Tech Stack Java 21+, Spring Boot, Docker, Kubernetes, Kafka, AWS, Terraform, Git, MySQL, REST APIs, CI/CD Requirements: Must Have: Strong commercial experience with Java 21+ and Spring Boot Experience designing and implementing REST APIs Experience with Docker, Kubernetes, and CI/CD pipelines Knowledge of microservices architecture Experience working in TDD and/or BDD environments Familiarity with SQL and NoSQL databases Experience working in Agile teams Good knowledge of Git and Jira Nice to Have: Kafka or other distributed messaging systems Terraform Grafana, Prometheus, Kibana AWS experience Software architecture knowledge Your responsibilities: Design, develop, and maintain backend services and microservices Build and enhance REST APIs Collaborate with Technical Leads on solution design and implementation Write clean, maintainable, and well-tested code Participate in code reviews and contribute to engineering best practices Improve software quality, delivery processes, and system reliability What we offer: Up to 145 PLN/hour net on a B2B contract Flexible payment options tailored to your preferences Short 14-day invoice payment term Comprehensive private healthcare package Access to the MyBenefit cafeteria platform, including Multisport cards and prepaid gift cards for brands such as Ikea, Zalando, Notino, and many more