Senior Java Developer

🏢 Summary: Senior Java Developer role focused on building and maintaining scalable backend services for digital banking platforms. The position combines Java development with ownership of backend testing, AI-assisted delivery practices, and collaboration in a cross-functional agile team. It offers a B2B contract, up to 150 PLN/h net + VAT, and hybrid work in Warsaw. 🗂️ Requirements: Backend development experience at Regular or Senior level, Java 21+ proficiency, REST API and microservices architecture experience, Spring Boot 3.4, Spring WebFlux, and Hibernate experience, Test automation experience with JUnit5, Cucumber, and WireMock, Git, Maven, Jenkins, Oracle DB, DB2, SQL, and Splunk knowledge, SOLID principles understanding, AI tools usage in software development, Fluent English 📃 Skills: Java, REST, Microservices, Spring, WebFlux, Hibernate, JUnit, Cucumber, WireMock, Git, Maven, Jenkins, Oracle, DB2, SQL, Splunk, SOLID, AI 🏢 Description: Senior Java Developer About our Client You will be working for a prominent player in the banking industry, helping shape the future of digital business banking across the Nordic region. The client builds and delivers innovative web and mobile banking solutions used by customers in Denmark, Finland, Sweden, and Norway, continuously evolving the next generation of scalable digital banking services. The Role & Expectations We are looking for a Senior Java Developer who embraces a blended capability role. Beyond standard development tasks, you will be expected to champion and drive backend testing within your agile team. You should be comfortable working in a modern, large-scale banking platform and proactively using AI-powered tools to optimize your daily workflow. What you will do Design, develop, test, and maintain backend services that power digital banking platforms. Drive backend testing activities (performance, unit, integration, and API testing) ensuring highly reliable and scalable solutions. Leverage AI-powered tools as a standard part of your daily development, testing, and delivery practices. Collaborate closely with business stakeholders to understand requirements and translate business needs into technical solutions. Contribute to the full product lifecycle—from technical design and implementation to continuous improvement and operational support. Work collaboratively within a cross-functional agile team based in a vibrant Warsaw hub. What we expect (Must-haves) Strong experience as a Backend Developer (Regular to Senior level). Solid proficiency in Java 21+ , REST APIs, and microservices architecture. Hands-on experience with Spring Boot 3.4 , Spring WebFlux, and Hibernate. Experience in test automation ( JUnit5, Cucumber, WireMock ). Working knowledge of Git, Maven, Jenkins, Oracle DB/DB2/SQL, and Splunk. Strong understanding of SOLID principles (knowledge of reactive programming is a major advantage). Mandatory experience in utilizing AI tools in software development. Fluent English (essential for daily communication in an international environment). Nice-to-haves Frontend development experience (JavaScript, TypeScript, Angular 2+). Familiarity with testing tools and frameworks like Playwright, qTest, and Gherkin. ISTQB Foundation certification. What is offered Salary: Up to 150 PLN/h net + VAT. Contract: B2B agreement Work model: Hybrid (3 days per week in the Warsaw office).

🏢 Summary: Fully remote Senior Java Engineer role in Poland for a candidate available to start in September. The position focuses on building, testing, reviewing, and maintaining secure enterprise software in an agile team, with opportunities to contribute to planning, design, and delivery. 🗂️ Requirements: 5+ years of software engineering experience, Java and JVM expertise, Object-oriented programming and design patterns, Unit testing, databases and SQL, Secure coding knowledge, HTML and XML knowledge, Git or SVN proficiency, Continuous build and integration familiarity, Agile software development lifecycle experience or strong willingness to work in it, Clean, reusable code development, Verbal and written communication skills, English proficiency at B2+ level 📃 Skills: Java, JVM, OOP, SQL, HTML, XML, Git, SVN, AWS, Elasticsearch, Jenkins, Docker, Kubernetes, GitLab, REST, DevOps 🏢 Description: We are seeking a Senior Java Engineer responsible for the analysis, definition, design, construction, testing, installation, modification, and maintenance of properly engineered information systems, with software as the major component, to meet agreed-upon business needs. This position offers a fully remote role based in Poland. We are highly interested in candidates willing to start in September. Responsibilities • Build and maintain efficient, reusable, reliable, and secure code based on User Stories and software designs. • Develop enterprise software within a multi-functional agile team, adhering to company standards and established software methodology. • Ensure delivery of reliable, robust software through the creation and execution of automated tests. • Review the work of peers and more junior developers, providing advice and guidance to benefit the team. • Inspect and adapt through agile retrospectives and reviews, finding innovative ways to make the team work more effectively. • Work with other team members during refinement and planning sessions to analyze development requirements, provide design options and complexity estimates, and agree on delivery approaches. • Provide timely status updates on areas of responsibility during Scrum meetings. Requirements • 5+ years of experience as a software engineer with excellent knowledge of the Java language and underlying JVM. • Solid understanding of object-oriented programming and familiarity with various design patterns. • Experience with unit testing, databases, and SQL. • Understanding of security implications and secure coding. • Good communication skills, both verbal and written. • Skill in writing clean, readable code and reusable components. • Experience in, or a strong desire to work in, a formal agile software development lifecycle. • Understanding of HTML and XML. • Proficiency in source code management tools such as Git or SVN. • Familiarity with continuous build and integration. • Proficiency in English at a B2+ level. Nice to have • Experience with AWS and Elasticsearch. • Experience with CI/CD tooling, such as Jenkins, Docker, Kubernetes, and GitLab, and understanding of DevOps culture. • Experience with RESTful interfaces. • Knowledge of service-oriented architectures. We offer • A hybrid-by-design mode and the opportunity to work remotely within Poland. • The chance to work abroad for up to 60 days annually. • Business-driven relocation opportunities. • Career development programs. • Thought leadership, mentoring, soft-skills, and well-being programs. • Certification opportunities in Anthropic, Gemini, GCP, Azure, and AWS. • English classes. • Stable pay. • Participation in the Employee Stock Purchase Plan with a 15% discount. • Benefits package, including health insurance, Multisport, and shopping vouchers. • Referral bonuses up to $2,000. • Offices with entertainment and relaxation zones, table tennis and football, free snacks, coffee, and more. • Corporate, social, and well-being events. • Benefits listed above are available to employees only. • Open to working with contractors; terms of B2B cooperation agreements are agreed individually.

🏢 Summary: Fully remote Senior Java Engineer role in Poland, focused on building secure, reliable enterprise software in an agile team. The position involves Java development, automated testing, code reviews, technical planning and Scrum collaboration, with September start availability preferred. 🗂️ Requirements: 5+ years of software engineering experience, Java and JVM expertise, Object-oriented programming and design patterns, Unit testing, databases and SQL, Secure coding knowledge, Clean, reusable code development, Agile software development lifecycle experience or strong willingness to work in it, HTML and XML knowledge, Git or SVN proficiency, Continuous build and integration familiarity, English proficiency at B2+ level 📃 Skills: Java, JVM, OOP, SQL, HTML, XML, Git, SVN 🏢 Description: Fully remote role based in Poland. Candidates available to start in September are highly preferred.

Responsibilities

• Build and maintain efficient, reusable, reliable and secure code based on user stories and software designs.
• Develop enterprise software within a multifunctional agile team, following established standards and software methodology.
• Create and execute automated tests to deliver reliable, robust software.
• Review peer and junior developers’ work, providing advice and guidance.
• Improve team effectiveness through agile retrospectives and reviews.
• Participate in refinement and planning sessions to analyze requirements, provide design options and complexity estimates, and agree on delivery approaches.
• Provide timely status updates during Scrum meetings.

Requirements

• 5+ years of experience as a software engineer, with excellent knowledge of Java and the JVM.
• Solid understanding of object-oriented programming and familiarity with design patterns.
• Experience with unit testing, databases and SQL.
• Understanding of security implications and secure coding.
• Strong verbal and written communication skills.
• Ability to write clean, readable code and reusable components.
• Experience with, or a strong desire to work in, a formal agile software development lifecycle.
• Understanding of HTML and XML.
• Proficiency with source-code management tools such as Git or SVN.
• Familiarity with continuous build and integration.
• English proficiency at B2+ level.

Nice to Have

• Experience with AWS and Elasticsearch.
• Experience with CI/CD tooling such as Jenkins, Docker, Kubernetes and GitLab, plus an understanding of DevOps culture.
• Experience with RESTful interfaces.
• Knowledge of service-oriented architectures.

Benefits

• Hybrid-by-design work mode and remote work within Poland.
• Opportunity to work abroad for up to 60 days annually.
• Business-driven relocation opportunities.
• Career development programs, thought leadership, mentoring, soft-skills and well-being programs.
• Certification opportunities in Anthropic, Gemini, GCP, Azure and AWS.
• English classes.
• Stable pay.
• Employee Stock Purchase Plan participation with a 15% discount.
• Benefits package including health insurance, Multisport and shopping vouchers.
• Referral bonuses up to $2,000.
• Offices with entertainment and relaxation zones, table tennis, football, snacks and coffee.
• Corporate, social and well-being events.

Listed benefits are available to employees only.

Contractor engagement is also available; B2B cooperation terms are agreed individually.

🏢 Summary: Fully remote Senior Java Engineer role in Poland, focused on designing, building, testing and maintaining secure enterprise software in an agile team. The role involves code reviews, automated testing, technical planning and Scrum collaboration, with a September start preferred. 🗂️ Requirements: 5+ years of software engineering experience, Excellent Java and JVM knowledge, Object-oriented programming and design patterns, Unit testing, databases and SQL experience, Secure coding knowledge, Clean, reusable code development, Agile software development lifecycle experience or strong willingness to work in it, HTML and XML understanding, Git or SVN proficiency, Continuous build and integration familiarity, English proficiency at B2+ level, Strong written and verbal communication skills 📃 Skills: Java, JVM, SQL, HTML, XML, Git, SVN 🏢 Description: We are seeking a Senior Java Engineer responsible for the analysis, definition, design, construction, testing, installation, modification, and maintenance of properly engineered information systems, with software as the major component, to meet agreed-upon business needs. This position offers a fully remote role based in Poland. Candidates willing to start in September are highly preferred. Quick Facts • Fully remote role within Poland • Preferred start: September • Open to employees and contractors; B2B terms are agreed individually Responsibilities • Build and maintain efficient, reusable, reliable and secure code based on User Stories and software designs • Develop enterprise software within a multi-functional agile team, adhering to company standards and established software methodology • Ensure delivery of reliable, robust software through the creation and execution of automated tests • Review the work of peers and more junior developers, providing advice and guidance to benefit the team • Inspect and adapt through agile retrospectives and reviews, finding innovative ways to make the team work more effectively • Work with other team members during refinement and planning sessions to analyze development requirements, provide design options and complexity estimates, and agree on delivery approaches • Provide timely status updates on areas of responsibility during Scrum meetings Requirements • 5+ years of experience as a software engineer with excellent knowledge of the Java language and underlying JVM • Solid understanding of object-oriented programming and familiarity with various design patterns • Experience with unit testing, databases and SQL • Understanding of security implications and secure coding • Good communication skills, both verbal and written • Skill in writing clean, readable code and reusable components • Experience in, or a strong desire to work in, a formal agile software development lifecycle • Understanding of HTML and XML • Proficiency in source code management tools such as Git or SVN • Familiarity with continuous build and integration • English proficiency at B2+ level Nice to Have • Experience with AWS and Elasticsearch • Experience with CI/CD tooling such as Jenkins, Docker, Kubernetes and GitLab, and understanding of DevOps culture • Experience with RESTful interfaces • Knowledge of service-oriented architectures We Offer • Hybrid-by-design work mode and the opportunity to work remotely within Poland • Opportunity to work abroad for up to 60 days annually • Business-driven relocation opportunities • Career development programs • Thought leadership, mentoring, soft-skills and well-being programs • Certification opportunities: Anthropic, Gemini, GCP, Azure and AWS • English classes • Stable pay • Participation in the Employee Stock Purchase Plan with a 15% discount • Benefits package, including health insurance, multisport and shopping vouchers • Referral bonuses up to $2,000 • Offices with entertainment and relaxation zones, table tennis, football, free snacks and coffee • Corporate, social and well-being events Benefits listed above are available to employees only. Only selected candidates will be contacted.

🏢 Summary: Fully remote Senior Java Engineer role in Poland, focused on designing, building, testing and maintaining secure enterprise software in an agile team. The position involves technical design, automated testing, code reviews, estimation and Scrum collaboration, with a preferred September start. 🗂️ Requirements: 5+ years of software engineering experience, Java and JVM expertise, Object-oriented programming and design patterns, Unit testing, databases and SQL, Secure coding knowledge, Clean, reusable code development, Agile software development lifecycle experience or strong willingness to work in it, HTML and XML knowledge, Git or SVN proficiency, Continuous build and integration familiarity, English proficiency at B2+ level, Strong written and verbal communication skills 📃 Skills: Java, JVM, SQL, HTML, XML, Git, SVN 🏢 Description: We are seeking a Senior Java Engineer responsible for the analysis, definition, design, construction, testing, installation, modification, and maintenance of properly engineered information systems, with software as the major component, to meet agreed-upon business needs. This is a fully remote role based in Poland, with preference for candidates available to start in September. Quick Facts • Fully remote work within Poland • Preferred start: September • Open to employees and contractors; B2B terms agreed individually Responsibilities • Build and maintain efficient, reusable, reliable, and secure code based on user stories and software designs. • Develop enterprise software within a multi-functional agile team, following company standards and established software methodology. • Ensure reliable, robust software delivery by creating and executing automated tests. • Review peers’ and junior developers’ work, providing guidance to support the team. • Inspect and adapt through agile retrospectives and reviews to improve team effectiveness. • Participate in refinement and planning sessions to analyze requirements, provide design options and complexity estimates, and agree delivery approaches. • Provide timely status updates during Scrum meetings. Requirements • 5+ years of experience as a software engineer, with excellent knowledge of Java and the JVM. • Solid understanding of object-oriented programming and familiarity with design patterns. • Experience with unit testing, databases, and SQL. • Understanding of security implications and secure coding. • Good written and verbal communication skills. • Ability to write clean, readable code and reusable components. • Experience in, or a strong desire to work in, a formal agile software development lifecycle. • Understanding of HTML and XML. • Proficiency with source-code management tools such as Git or SVN. • Familiarity with continuous build and integration. • English proficiency at B2+ level. Nice to Have • Experience with AWS and Elasticsearch. • Experience with CI/CD tools such as Jenkins, Docker, Kubernetes, and GitLab, plus an understanding of DevOps culture. • Experience with RESTful interfaces. • Knowledge of service-oriented architectures. We Offer • Hybrid-by-design work and the opportunity to work remotely within Poland. • Opportunity to work abroad for up to 60 days annually. • Business-driven relocation opportunities. • Career development programs, thought leadership, mentoring, soft-skills and well-being programs. • Certification opportunities in Anthropic, Gemini, GCP, Azure, and AWS. • English classes. • Stable pay. • Participation in an Employee Stock Purchase Plan with a 15% discount. • Benefits package including health insurance, multisport, and shopping vouchers. • Referral bonuses of up to $2,000. • Offices with entertainment and relaxation zones, table tennis, football, free snacks, coffee, and more. • Corporate, social, and well-being events. Benefits listed above are available to employees only.

🏢 Summary: Senior Java Engineer role focused on designing, building, testing and maintaining secure enterprise software in an agile team. The offer supports remote work within Poland and seeks candidates available to start in September. 🗂️ Requirements: 5+ years of software engineering experience, Java and JVM expertise, Object-oriented programming and design patterns, Unit testing, databases and SQL, Secure coding knowledge, Clean, reusable code, Agile software development lifecycle, HTML and XML, Git or SVN, Continuous build and integration, English B2+, Verbal and written communication skills 📃 Skills: Java, JVM, SQL, HTML, XML, Git, SVN, Agile, OOP 🏢 Description: We are seeking a Senior Java Engineer responsible for the analysis, definition, design, construction, testing, installation, modification, and maintenance of properly engineered information systems, with software as the major component, to meet agreed-upon business needs. This position offers a fully remote role based in Poland. We are highly interested in candidates willing to start in September. Responsibilities - Build and maintain efficient, reusable, reliable and secure code based on User Stories and software designs. - Develop enterprise software within a multi-functional agile team, adhering to company standards and established software methodology. - Ensure delivery of reliable, robust software through the creation and execution of automated tests. - Review the work of peers and more junior developers, providing advice and guidance to benefit the team. - Inspect and adapt through agile retrospectives and reviews, finding innovative ways to make the team work more effectively. - Work with other team members during refinement and planning sessions to analyze development requirements, provide design options and complexity estimates, and agree on delivery approaches. - Provide timely status updates on areas of responsibility during Scrum meetings. Requirements - 5+ years of experience as a software engineer with excellent knowledge of the Java language and underlying JVM. - Solid understanding of object-oriented programming and familiarity with various design patterns. - Experience with unit testing, databases and SQL. - Understanding of security implications and secure coding. - Good communication skills, both verbal and written. - Skill for writing clean, readable code and reusable components. - Experience in or a strong desire to work in a formal agile software development lifecycle. - Understanding of HTML and XML. - Proficiency in source code management tools such as Git or SVN. - Familiarity with continuous build and integration. - Proficiency in English at a B2+ level. Nice to have - Experience with AWS and Elasticsearch. - Experience with CI/CD tooling, such as Jenkins, Docker, Kubernetes and GitLab, and understanding of DevOps culture. - Experience with RESTful interfaces. - Knowledge of service-oriented architectures. We offer - Hybrid-by-design mode and opportunity to work remotely within Poland. - Chance to work abroad for up to 60 days annually. - Business-driven relocation opportunities. Growth opportunities - Career development programs. - Thought leadership, mentoring, soft skills and well-being programs. - Certification: Anthropic, Gemini, GCP, Azure and AWS. - English classes. Compensation and benefits - Stable pay. - Participation in the Employee Stock Purchase Plan with a 15% discount. - Benefits package: health insurance, multisport and shopping vouchers. - Referral bonuses up to $2,000. - Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more. - Corporate, social and well-being events. Benefits listed above are available to employees only. Contractor arrangements - Open to working with contractors. - Terms of B2B cooperation agreements are agreed individually. Only selected candidates will be contacted.

🏢 Summary: Fully remote Senior Java Engineer role in Poland for candidates able to start in September. The position focuses on designing, developing, testing and maintaining secure enterprise software in an Agile team, including code reviews, planning and Scrum collaboration. The offer includes professional development, benefits for employees and individually agreed B2B contractor terms. 🗂️ Requirements: 5+ years of software engineering experience, Excellent Java and JVM knowledge, Object-oriented programming and design-pattern knowledge, Unit testing, database and SQL experience, Secure-coding knowledge, Clean, reusable code skills, HTML and XML knowledge, Git or SVN proficiency, Continuous build and integration familiarity, English proficiency at B2+ level 📃 Skills: Java, JVM, OOP, SQL, HTML, XML, Git, SVN, Testing, Databases, Security, Agile, CI 🏢 Description: We are seeking a Senior Java Engineer responsible for the analysis, definition, design, construction, testing, installation, modification, and maintenance of properly engineered information systems, with software as the major component, to meet agreed-upon business needs. This position offers a fully remote role based in Poland. We are highly interested in candidates willing to start in September. Responsibilities • Build and maintain efficient, reusable, reliable and secure code based on User Stories and software designs. • Develop enterprise software within a multi-functional agile team, adhering to company standards and established software methodology. • Ensure delivery of reliable, robust software through the creation and execution of automated tests. • Review the work of peers and more junior developers, providing advice and guidance to benefit the team. • Inspect and adapt through agile retrospectives and reviews, finding innovative ways to make the team work more effectively. • Work with other team members during refinement and planning sessions to analyze development requirements, provide design options and complexity estimates, and agree on delivery approaches. • Provide timely status updates on areas of responsibility during Scrum meetings. Requirements • 5+ years of experience as a software engineer with excellent knowledge of the Java language and underlying JVM. • Solid understanding of object-oriented programming and familiarity with various design patterns. • Experience with unit testing, databases and SQL. • Understanding of security implications and secure coding. • Good communication skills, both verbal and written. • Skill for writing clean, readable code and reusable components. • Experience in or a strong desire to work in a formal agile software development lifecycle. • Understanding of HTML and XML. • Proficiency in source code management tools such as Git or SVN. • Familiarity with continuous build and integration. • Proficiency in English at a B2+ level. Nice to have • Experience with AWS and Elasticsearch. • Experience with CI/CD tooling, such as Jenkins, Docker, Kubernetes and GitLab, and understanding of DevOps culture. • Experience with RESTful interfaces. • Knowledge of service-oriented architectures. We offer • Hybrid-by-design mode and opportunity to work remotely within Poland. • Chance to work abroad for up to 60 days annually. • Business-driven relocation opportunities. • Career development programs. • Thought leadership, mentoring, soft skills and well-being programs. • Certification opportunities: Anthropic, Gemini, GCP, Azure and AWS. • English classes. • Stable pay. • Participation in the Employee Stock Purchase Plan with a 15% discount. • Benefits package: health insurance, multisport and shopping vouchers. • Referral bonuses up to $2,000. • Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more. • Corporate, social and well-being events. Please note: benefits listed above are available to employees only. We are open to working with contractors. Terms of B2B cooperation agreements are agreed individually. We will reach out to selected candidates exclusively.

🏢 Summary: Fully remote Senior Java Engineer role for candidates based in Poland, focused on designing, building, testing and maintaining secure enterprise software in an Agile team. The role includes code reviews, automated testing, technical estimation and Scrum-based delivery, with a preferred September start. 🗂️ Requirements: 5+ years of software engineering experience, Java and JVM expertise, Object-oriented programming and design patterns, Unit testing, databases and SQL, Secure coding knowledge, Clean, reusable code development, Agile software development lifecycle experience or strong willingness to work in it, HTML and XML knowledge, Git or SVN proficiency, Continuous build and integration familiarity, English proficiency at B2+, Ability to work remotely from Poland 📃 Skills: Java, JVM, OOP, SQL, HTML, XML, Git, SVN, AWS, Elasticsearch, Jenkins, Docker, Kubernetes, GitLab, REST, DevOps 🏢 Description: We are seeking a Senior Java Engineer responsible for the analysis, definition, design, construction, testing, installation, modification, and maintenance of properly engineered information systems, with software as the major component, to meet agreed-upon business needs. This is a fully remote role based in Poland. Candidates available to start in September are preferred. Quick Facts - Fully remote work within Poland - Opportunity to work abroad for up to 60 days annually - Open to employees and contractors; B2B cooperation terms are agreed individually Responsibilities - Build and maintain efficient, reusable, reliable, and secure code based on user stories and software designs. - Develop enterprise software within a multi-functional Agile team, following company standards and established software methodology. - Ensure reliable, robust software delivery by creating and executing automated tests. - Review the work of peers and junior developers, providing advice and guidance. - Inspect and adapt through Agile retrospectives and reviews to improve team effectiveness. - Participate in refinement and planning sessions to analyze requirements, provide design options and complexity estimates, and agree on delivery approaches. - Provide timely status updates during Scrum meetings. Requirements - 5+ years of experience as a software engineer with excellent knowledge of Java and the JVM. - Solid understanding of object-oriented programming and familiarity with design patterns. - Experience with unit testing, databases, and SQL. - Understanding of security implications and secure coding. - Good written and verbal communication skills. - Ability to write clean, readable code and reusable components. - Experience with, or a strong desire to work in, a formal Agile software development lifecycle. - Understanding of HTML and XML. - Proficiency with source control tools such as Git or SVN. - Familiarity with continuous build and integration. - English proficiency at B2+ level. Nice to Have - Experience with AWS and Elasticsearch. - Experience with CI/CD tools such as Jenkins, Docker, Kubernetes, and GitLab, plus an understanding of DevOps culture. - Experience with RESTful interfaces. - Knowledge of service-oriented architectures. Benefits - Career development programs, thought leadership, mentoring, soft-skills and well-being programs. - Certification opportunities in Anthropic, Gemini, GCP, Azure, and AWS. - English classes. - Stable pay and participation in the Employee Stock Purchase Plan with a 15% discount. - Benefits package including health insurance, multisport, and shopping vouchers. - Referral bonuses up to $2,000. - Business-driven relocation opportunities. - Offices with entertainment and relaxation zones, table tennis, football, free snacks, coffee, and more. - Corporate, social, and well-being events. Benefits listed above are available to employees only. Only selected candidates will be contacted.

🏢 Summary: Senior Java Developer role building and modernizing client-facing applications for Rates and Credit sales and trading desks on a scalable microservices platform. The position combines hands-on Java development, architecture, testing, and close collaboration with trading and Scrum teams, with hybrid or remote work options in Poland. 🗂️ Requirements: 3+ years of Java software development experience, Java collections, multithreading, concurrency utilities, IO/NIO and sockets, Asynchronous programming, Enterprise server-side solution architecture on cloud technologies, Spring Boot and ReactJS application development, Low-latency, high-throughput messaging systems, Design patterns, Java testing frameworks, automated testing and continuous integration, Agile development practices, Upper-Intermediate English (B2) or higher 📃 Skills: Java, Spring, ReactJS, JavaScript, TypeScript, HTML5, Microservices, Cloud, IO, NIO, Sockets, JUnit, Mockito, Cucumber, Scrum, XP, Kanban, CI 🏢 Description: We are seeking a Senior Java Developer passionate about delivering new and exciting applications to support Rates and Credit sales and trading desks on a high-end microservice platform. The platform intends to replace existing client-facing applications and uses state-of-the-art technologies (Microservices, Java 11+, React, JS/TS & HTML5, Spring Boot) and solutions allowing efficient development and automatic scalable deployment. Responsibilities Be a part of a scrum team working on delivering business value through software Implement and deliver high-quality software solutions Demonstrate superior collaboration skills when working with the trading desk and other teams Understand business requirements and translate them into code Design, build, and maintain efficient, reusable code Perform unit, integration, functional, and non-functional testing Provide technical direction and system architecture Requirements 3+ years of experience in software development using Java, with expertise in low-level parts of the API such as collections, multi-threading, and Java concurrency utilities Background in architecting enterprise-level, server-side, end-to-end solutions on cloud technologies Proficiency in IO/NIO, Sockets, and asynchronous programming Skills in building applications using an IOC framework such as Spring Boot and ReactJS Familiarity with low-latency, high-throughput messaging systems Sound understanding of design patterns (exposure to functional programming is also highly desirable) Knowledge of Java testing frameworks (JUnit, Mockito, Cucumber), automated testing, and continuous integration Competency in agile development practices (Scrum, XP, Kanban) Self-starting, with the desire to take ownership of requirements from start to finish Proactive and comfortable working in dynamic environments with fast-paced deliveries and changing requirements Excellent communicator, able to lead and drive fellow teammates to deliver good-quality software Proficiency in English at an Upper-Intermediate level (B2) or higher Nice to have Hands-on experience with ELK and event streaming platforms like Kafka or Spark Knowledge of application containerization such as Docker and Kubernetes Experience with performance stress testing and chaos engineering We offer We gather like-minded people: Top tech minds driving innovation in AI, cloud and digital platform modernization Supportive team and agile, startup-like culture Hybrid by design mode and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Career development programs Thought leadership, mentoring, soft skills and well-being programs Certification (Anthropic, Gemini, GCP, Azure, AWS) English classes We cover it all: Stable pay Participation in the Employee Stock Purchase Plan with a 15% discount Benefits package (health insurance, multisport, shopping vouchers) Referral bonuses up to $2,000 Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more Corporate, social and well-being events Please, note: Benefits listed above are available to employees only We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually We will reach out to selected candidates exclusively EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.

🏢 Summary: Oferta dla Senior Java Developera w projekcie modernizacji systemów IT dla sektora energetycznego. Rola obejmuje rozwój aplikacji Java, mikroserwisów i REST API w środowisku Spring Boot oraz DevSecOps, z wynagrodzeniem 1000–1300 PLN/MD na B2B i sporadycznymi wizytami we Wrocławiu. 🗂️ Requirements: Minimum 8 lat doświadczenia w programowaniu Java, Znajomość wzorców projektowych i integracyjnych, Znajomość architektury mikroserwisowej, Znajomość Spring Boot, JPA i Hibernate, Doświadczenie w projektowaniu i implementacji REST API, Znajomość relacyjnych baz danych SQL, Znajomość praktyk DevSecOps, Doświadczenie z konteneryzacją, Znajomość zasad projektowania interfejsów użytkownika i użyteczności aplikacji webowych, Doświadczenie w branży energetycznej 📃 Skills: Java, SpringBoot, JPA, Hibernate, REST, SQL, Oracle, DevSecOps, Docker, Kubernetes, Nomad, Kafka, MinIO, Jenkins, GitLab 🏢 Description: Wynagrodzenie: 1000 - 1300 PLN/MD (B2B) Praca zdalna: sporadyczne wizyty w biurze we Wrocławiu (raz w miesiącu) Dlaczego warto wybrać tę ofertę? Dołączysz do projektu realizowanego dla klienta z sektora energetycznego, który rozwija i modernizuje kluczowe systemy informatyczne wspierające krajową infrastrukturę energetyczną Będziesz pracować z wykorzystaniem nowoczesnych technologii i architektury mikroserwisowej w środowisku opartym o Java, Spring Boot oraz rozwiązania DevSecOps To okazja do wykorzystania i dalszego rozwijania kompetencji w obszarze integracji systemów, konteneryzacji oraz projektowania rozwiązań klasy enterprise Projekt Jako Senior Java Developer dołączysz do projektu realizowanego dla organizacji wspierającej rozwój i utrzymanie systemów IT wykorzystywanych w sektorze energetycznym. Projekt koncentruje się na budowie oraz rozwoju nowoczesnych rozwiązań informatycznych z wykorzystaniem Java, Spring Boot i architektury mikroserwisowej. Zakres obowiązków Rozwój i utrzymanie aplikacji w technologii Java Projektowanie i implementacja architektury mikroserwisowej Tworzenie oraz rozwój interfejsów REST API Oczekiwane kompetencje i wiedza Minimum 8 lat doświadczenia w programowaniu w języku Java Praktyczna znajomość wzorców projektowych , wzorców integracyjnych oraz architektury mikroserwisowej Znajomość frameworków Spring Boot (Core, Data, Security), JPA oraz Hibernate Doświadczenie w projektowaniu i implementacji REST API Znajomość relacyjnych baz danych SQL, preferencyjnie Oracle Znajomość praktyk DevSecOps Doświadczenie w pracy z technologiami konteneryzacji, takimi jak Docker, Kubernetes (K8s) lub Nomad Znajomość dobrych praktyk projektowania interfejsów użytkownika oraz zagadnień związanych z użytecznością aplikacji webowych Doświadczenie w branży energetycznej Mile widziane Znajomość narzędzi i technologii: Apache Kafka, MinIO, Jenkins, GitLab Technologie z jakimi będziesz pracować Java Spring Boot JPA Hibernate REST API SQL (Oracle) Docker Kubernetes (K8s) Nomad Apache Kafka MinIO Jenkins GitLab Klient – dlaczego warto wybrać akurat tego klienta z portfolio JIT? Nasz klient specjalizuje się w rozwijaniu innowacyjnych rozwiązań technologicznych w sektorze energetycznym i działa na terenie całej Polski od ponad 12 la t. Klient wspiera krajowego operatora systemu przesyłowego poprzez budowę i modernizację systemów informatycznych oraz prowadzenie prac badawczo-rozwojowych. Firma wdraża także zaawansowaną automatyzację procesów biznesowych, co pozwala na zwiększenie efektywności działania. Głównym założeniem naszego klienta jest zapewnienie efektywnej i niezawodnej pracy systemu elektroenergetycznego, wspierając jednocześnie rozwój odnawialnych źródeł energii. O Jit Team The Human factor of IT - to nie tylko slogan, to filozofia. Fundamentem Jit Team są ludzie, dlatego to właśnie Was traktujemy priorytetowo. Zatrudniamy ponad 770 doświadczonych ekspertów , którym oferujemy rozwojowe projekty, szeroki zakres benefitów oraz autorski program rozwoju zawodowego. Wspólnie z klientami z całego świata tworzymy innowacyjne rozwiązania IT, dostarczane przez wysoko specjalizowane i efektywne zespoły. Za naszą maksymą stoją, także działania charytatywne i edukacyjne. Wspieramy szkoły, uczelnie i instytucje edukacyjne – prowadząc zajęcia, projekty edukacyjne, sponsorując wydarzenia czy przekazując sprzęt do nauki. Oferujemy staże umożliwiające rozpoczęcie kariery w IT. Wspieramy ratowników wodnych oraz szpitale, dostarczając potrzebne wyposażenie. Wspieramy też liczne organizacje charytatywne wspierające ubogich, dzieci i osoby starsze. Jesteśmy Polską firmą i dzielimy się tym, co osiągnęliśmy przez ponad 15 lat działalności. Wspierając rodzime inicjatywy, dbamy o obieg dobrej energii.