Senior Java Developer

🏢 Summary: Senior .NET Developer role focused on designing, building, and maintaining scalable .NET applications and APIs across diverse projects, including AI-driven and legacy modernization initiatives. The position involves backend development, architectural input, code quality improvement, and cloud-based deployments within Agile teams. B2B contract with flexible remote collaboration. 🗂️ Requirements: 5+ years experience with C# and .NET, .NET Core / .NET 6+ experience, ASP.NET Core experience, Entity Framework experience, Experience building RESTful APIs, SQL and NoSQL database experience, Cloud platform experience (AWS, Azure, or GCP), CI/CD pipeline knowledge, Git version control proficiency, Understanding of OOP and design patterns, Experience in Agile/Scrum, English level B2+ 📃 Skills: C#, .NET, .NETCore, ASP.NET, EntityFramework, REST, SQL, PostgreSQL, MySQL, MongoDB, AWS, Azure, GCP, CI/CD, Git, OOP, Scrum, AI 🏢 Description: Who we are: We are Inspeerity (part of DevelopX group), engineering consultancy providing software development and consultancy. Our primary expertise is systems architecture and full stack development – from defining project requirements, to designing, building, and deploying software applications for web, backend, enterprise and mobile. We are crazy about technology, serious about people. About position: We are currently building our talent pool for future Senior .NET Developer roles. As our company is expanding, you may have the opportunity to work on a variety of software solutions across multiple initiatives, including projects we will be delivering in the future, from building native AI solutions to modernizing legacy systems. If you enjoy collaborating in a skilled team and are committed to delivering top-notch software, we’d love to connect. We're not prescriptive about background. Whether you've worked in fintech, SaaS, e-commerce, or enterprise systems, what matters is that you've shipped production software at scale, cared about its reliability, and learned from what broke. TL;DR • Who: Senior .NET Developer • Contract Type: B2B Framework Agreement • Salary range: Up to 150 PLN/h • Company: Software House What you’ll be doing: • Designing, implementing, and maintaining high-quality .NET applications. • Developing backend components and APIs to support scalable software solutions. • Collaborating with cross-functional teams. • Reviewing and refactoring code to ensure maintainability, performance, and security. • Participating in technical design discussions and contributing to architecture decisions. • Writing and maintaining technical documentation for systems, APIs, and processes. • Supporting deployment and integration of applications in different environments. You will be the best fit if you have: • 5+ years of experience as a C#/.NET developer, preferably with exposure to .NET Core / .NET 6+ , ASP.NET Core , Entity Framework or similar frameworks. • Strong understanding of object-oriented programming, design patterns, and clean code principles. • Experience with RESTful APIs and web services integration. • Familiarity with SQL and NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB). • Experience with cloud environments such as AWS, Azure, or GCP. • Knowledge of CI/CD pipelines and version control systems (e.g., Git). • Strong problem-solving skills and ability to troubleshoot complex issues. • English level B2 or higher. • Experience working in Agile/Scrum teams and contributing to iterative development. • Experience with AI technologies, including using AI tools for development and building AI-powered features or applications. What we offer • Remote work or working from our Bialystok, Warsaw, Rzeszow offices. It's up to you! • Collaboration with experienced and engaged people who will appreciate your work and support you whenever you need it 😊 • Hybrid and flexible cooperation model based on a B2B Framework Agreement. • Great working conditions and best equipment: Dell or MacBook, your choice. Good to know: We don’t require a degree. We don’t do whiteboard puzzles or trick questions. Our interview process is practical: a technical conversation, and a chat about how you work. We value direct communication and intellectual curiosity. If you’re someone who gets excited debugging a tricky concurrency issue - not because you have to, but because you want to understand it — we’ll get along well.

🏢 Summary: Senior Java / Full-Stack Developer role focused on designing, implementing, and maintaining modern applications within a mature software architecture. The position involves backend development in Java, frontend work with modern frameworks, and participation in the full software lifecycle in an agile environment. Optional responsibilities include software architecture design, CI/CD pipeline development, and technical leadership. 🗂️ Requirements: Degree in Computer Science or equivalent professional experience, Strong professional experience in modern application development, Very good knowledge of Java and backend web services, Experience with relational and transactional databases, Experience with automated unit or integration testing, Practical experience with agile methodologies, Familiarity with Git or SVN and collaboration tools like Jira and Confluence, Solid understanding of architecture standards and best practices, English proficiency at minimum B2 level 📃 Skills: Java, SQL, REST, Angular, React, Git, SVN, Jira, Confluence, CI/CD, Cloud, JUnit, API, Databases 🏢 Description: We are looking for a Senior Java / Full-Stack Software Developer ! We offer: Salary: 150-180 PLN net/hour on B2B. Remote work from Poland. Responsibilities: ·       Design and implement new features and requirements in Java ·       Integrate solutions into an existing, mature software architecture ·       Participate in all phases of the software lifecycle: ­   Planning and technical conception ­   Implementation and testing ­   Maintenance and operational support ·       Ensure quality, stability, and maintainability of the software ·       Develop backend components (Java, databases, services, APIs) ·       Contribute to modern frontend development (e.g. Angular, React) ·       Actively collaborate within an agile, cross-functional team ·       Apply architectural standards, best practices, and clean code principles Optional: Architecture Responsibilities (Senior / Architect Track) Depending on experience and interest, you may additionally: ·       Design and further develop the overall software architecture ·       Select appropriate frameworks, tools, and cloud solutions ·       Take responsibility for complex systems and end-to-end solutions ·       Shape CI/CD pipelines and technical standards ·       Act as a technical point of contact and mentor for the team We are looking for: ·       Degree in (Business) Computer Science, or vocational training as IT Specialist, or comparable professional experience ·       Strong professional experience in developing modern applications · Very good knowledge of Java, including backend and web services ·       Experience with relational and transactional databases ·       Experience with automated tests (unit and/or integration tests) ·       Practical experience with agile development methodologies ·       Familiarity with version control and collaboration tools (e.g. Git/SVN, Jira, Confluence, common IDEs) ·       Solid understanding of architecture standards and best practices · English language skills (written and spoken), minimum B2 ·       Ability to work independently ·       Team-oriented mindset and customer-focused thinking Nice to Have: ·       Experience with Angular, React, or similar frontend frameworks ·       Exposure to financial systems or securities trading ·       Experience with CI/CD pipelines and cloud-based architectures ·       Background in long-lived enterprise or regulated systems 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 Don't hesitate and apply now!

🏢 Summary: B2B contract opportunity for a Senior Node.js Developer to design, build, and maintain scalable backend applications and APIs across diverse software projects, including AI-driven and legacy modernization initiatives. The role focuses on high-quality Node.js development, architecture contribution, and cloud-based deployments in Agile teams. 🗂️ Requirements: 5+ years of experience in Node.js development, Experience with Express.js or NestJS frameworks, Strong knowledge of JavaScript and TypeScript, Understanding of asynchronous programming and event-driven architecture, Experience building and integrating RESTful APIs, Experience with SQL and NoSQL databases, Experience with cloud platforms (AWS, Azure, or GCP), Knowledge of CI/CD pipelines, Experience with version control systems, Experience working in Agile/Scrum teams, English level B2 or higher, Experience with AI technologies and AI-powered features development 📃 Skills: Node.js, Express.js, NestJS, JavaScript, TypeScript, REST, SQL, NoSQL, PostgreSQL, MySQL, MongoDB, AWS, Azure, GCP, CI/CD, Git, AI 🏢 Description: Who we are: We are Inspeerity (part of DevelopX group), engineering consultancy providing software development and consultancy. Our primary expertise is systems architecture and full stack development – from defining project requirements, to designing, building, and deploying software applications for web, backend, enterprise and mobile. We are crazy about technology, serious about people. About position: We are currently building our talent pool for future Senior Node.js Developer roles. As our company is expanding, you may have the opportunity to work on a variety of software solutions across multiple initiatives, including projects we will be delivering in the future, from building native AI solutions to modernizing legacy systems. If you enjoy collaborating in a skilled team and are committed to delivering top-notch software, we’d love to connect. We're not prescriptive about background. Whether you've worked in fintech, SaaS, e-commerce, or enterprise systems — what matters is that you've shipped production software at scale, cared about its reliability, and learned from what broke. TL;DR • Who: Senior Node.js Developer • Contract Type: B2B Framework Agreement • Salary range: Up to 150 PLN/h • Company: Software House What you’ll be doing: • Designing, implementing, and maintaining high-quality Node.js applications. • Developing backend components and APIs to support scalable software solutions. • Collaborating with cross-functional teams. • Reviewing and refactoring code to ensure maintainability, performance, and security. • Participating in technical design discussions and contributing to architecture decisions. • Writing and maintaining technical documentation for systems, APIs, and processes. • Supporting deployment and integration of applications in different environments. You will be the best fit if you have: • 5+ years of experience as a Node.js developer, preferably with exposure to frameworks such as Express.js , NestJS , or similar. • Strong understanding of JavaScript/TypeScript, asynchronous programming, and event-driven architecture. • Experience with RESTful APIs and web services integration. • Familiarity with SQL and NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB). • Experience with cloud environments such as AWS, Azure, or GCP. • Knowledge of CI/CD pipelines and version control systems. • Strong problem-solving skills and ability to troubleshoot complex issues. • Experience working in Agile/Scrum teams and contributing to iterative development. • English level B2 or higher. • Experience with AI technologies, including using AI tools for development and building AI-powered features or applications. What we offer • Remote work or working from our Bialystok, Warsaw, Rzeszow offices. It's up to you! • Collaboration with experienced and engaged people who will appreciate your work and support you whenever you need it 😊 • Hybrid and flexible cooperation model based on a B2B Framework Agreement. • Great working conditions and best equipment: Dell or MacBook, your choice. Good to know: We don’t require a degree. We don’t do whiteboard puzzles or trick questions. Our interview process is practical: a technical conversation, and a chat about how you work. We value direct communication and intellectual curiosity. If you’re someone who gets excited debugging a tricky concurrency issue - not because you have to, but because you want to understand it — we’ll get along well.

🏢 Summary: Senior Java Developer role focused on designing, building, and operating highly scalable fintech backend systems supporting high-volume payment, trading, and settlement platforms. The position involves developing production-grade Java/Spring Boot microservices, scalable APIs, and distributed systems in cloud environments. The engineer owns features end-to-end, ensuring reliability, fault tolerance, and performance in high-traffic financial systems. 🗂️ Requirements: 5–15 years backend development experience, Strong Java experience in production, Hands-on Spring Boot experience, Experience in fintech, banking, payments, or trading systems, Experience building scalable backend services and APIs, Strong SQL knowledge, Experience with NoSQL databases, Knowledge of microservices architecture, Understanding of distributed systems, Experience with asynchronous processing, Experience across full SDLC, Cloud experience with AWS or Azure, Experience debugging distributed systems, English communication skills 📃 Skills: Java, Spring, SpringBoot, SQL, PostgreSQL, MySQL, MongoDB, NoSQL, Microservices, DistributedSystems, AWS, Azure, REST, APIs, SDLC, AsynchronousProcessing 🏢 Description: We are looking for a Senior Java Developer to join our team in Poland and contribute to the development of highly scalable fintech systems supporting trillions of dollars in transactions annually . In this role, you will work closely with the US-based product and engineering teams , helping to design, build, and operate backend services for programmable payment, trading, and settlement platforms. You will report directly to the Software Manager in Poland. A key requirement is excellent English communication skills and strong soft skills — we are looking for someone eloquent, outgoing, friendly, and confident in collaboration . Requirements 5 -15 years of professional backend development experience. Strong hands-on experience with Java and Spring Boot in production systems. Previous exposure to banking, payments, trading, or financial transaction systems. Proven experience building and maintaining backend services and APIs at scale. Solid understanding of SQL and NoSQL databases (e.g., PostgreSQL/MySQL, MongoDB). Knowledge of microservices architecture, distributed systems, and asynchronous processing. Experience across full SDLC: architecture, development, testing, deployment, and maintenance. Experience operating systems in cloud environments such as AWS or Azure . Excellent communication skills in English . Nice to Have Experience with Spring AI . Degree in Computer Science or equivalent practical experience. Personal Attributes Highly hands-on engineer who enjoys owning production-grade code. Comfortable working in a fast-paced, startup or high-growth environment. Strong analytical thinking, problem-solving ability, and attention to detail. Clear communicator, confident in collaborating with international teams. Friendly, proactive, and motivated to grow with the company and product. Design and develop backend architecture for fintech products and platforms. Build, maintain, and operate high-performance Java / Spring Boot microservices running in production environments. Develop scalable APIs and backend workflows with strong emphasis on data consistency, fault tolerance, and reliability. Own features end-to-end: from implementation through deployment and production support. Debug and resolve complex issues in distributed systems and high-volume production environments. Work closely with US-based teams to translate product requirements into robust backend solutions. Write clean, maintainable code and contribute to technical documentation, diagrams, and system workflows. Participate in code reviews and continuously improve backend quality and engineering standards.

🏢 Summary: Senior Java Developer role involving full-cycle development from requirements and architecture to implementation and testing, with a focus on building and maintaining Java-based systems in cloud environments. The position includes developing new functionalities, maintaining existing code, and working with modern frameworks and containerized platforms. Hybrid B2B cooperation with competitive hourly rate and additional benefits. 🗂️ Requirements: Very good knowledge of Java 21, Experience with Hibernate, Experience with Spring, Experience with Spring Boot, Understanding of relational databases (MariaDB), Linux skills (user level or higher), Proficiency with Git, Advanced technical English, Experience with cloud-based architectures, Experience with Kubernetes, Comfortable using AI coding assistants and LLMs 📃 Skills: Java, Hibernate, Spring, SpringBoot, MariaDB, Linux, Git, Kubernetes, AI, LLM 🏢 Description: Join our client's team as a Senior Java Developer! RESPONSIBILITIES Participation in full development cycle: from requirements, specification up to architecture, development and system tests Implementation of new functionalities Maintenance of existing code REQUIREMENTS Very good knowledge of Java 21 Experience with Hibernate and Spring, Spring Boot frameworks Understanding relational databases, especially MariaDB Linux skills on user level or higher Knowledge and ability to work with version control system Git Advanced technical English skills Experience with cloud-based architectures and platforms such as Kubernetes Comfortable using AI tools (coding assistants, LLMs) as part of your daily workflow NICE TO HAVE Experience with making software for telecommunication systems Familiarity with concepts of SDN, Segment Routing, and OpenFlow Operational experience with enterprise-class routers and switches Knowledge of protocols such as IPv4/6, DNS, BGP, DHCP, SR and ZTP Knowledge of automation tools such as Ansible and Terraform Understanding of Linux and K8s networking (e.g. routing, iptables, CNI) WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract and rate: 160-180 PLN/hour Hybrid work from Kraków or Warsaw (1 times a week in the office) The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care, Multisport card) WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch. DO YOU HAVE ANY QUESTIONS? Contact the recruiter responsible for this process directly. Karolina Kizowska Senior IT Delivery Consultant karolina.kizowska@speedapp.pl +48 608 487 448

🏢 Summary: Senior Java Developer role for a long-term B2B project in a hybrid model (3 days onsite in Krakow), focused on designing and optimizing scalable Java-based architectures in an Agile environment. The position involves working with advanced Java concepts, microservices, and API management to build and maintain high-performance systems. 🗂️ Requirements: 8–10 years of experience in Java development, Strong knowledge of advanced Java concepts, Experience with Java API management, Experience in microservices architecture, Experience with database technologies, Ability to design scalable system architectures, Experience in performance testing and system validation, Experience working in Agile environment 📃 Skills: Java, Microservices, API, SQL, Databases, Agile, Architecture, PerformanceTesting 🏢 Description: We are looking for a Senior Java Developer on behalf of our client, a well-known and fast-growing technology company offering a stable, long-term project in a modern environment. 📍 Work mode: Hybrid — 3 days from Krakow 📄 Contract: B2B Role Description Agile Way of Working Advanced Java Concepts Java API Management & Microservices Database Technology Experience (Years): 8–10 Responsibilities Designing scalable architecture systems for Java-based applications. Identifying the hardware and software infrastructure needs to accommodate the company’s architectural goals. Troubleshooting design flaws and system bottlenecks. Performing validation tests to ensure the flexibility and scalability of the Java environment. Assisting the software design team with application integration. Conducting system performance tests. Completing systems reports. Responsibility of Expectations from the Role: Designing scalable architecture systems for Java-based applications. Identifying the hardware and software infrastructure needs to accommodate the company’s architectural goals. Troubleshooting design flaws and system bottlenecks. Performing validation tests to ensure the flexibility and scalability of the Java environment. Assisting the software design team with application integration. Conducting system performance tests. Completing systems reports. ✅ Benefits: Work with modern technologies and international teams Long-term and stable cooperation Professional growth opportunities 📩 If you’re interested and meet the qualifications, please send your CV to Alina Pchelnikova at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Senior Java Developer role in a hybrid model (up to 4 remote days per week) focused on designing and delivering robust, scalable enterprise applications. The position involves end-to-end Java development, technical design, troubleshooting, and contribution to CI/CD processes. You will collaborate with cross-functional teams to build high-quality, performance-driven software solutions. 🗂️ Requirements: Minimum 7 years of professional experience in Java development, Strong proficiency in Java and enterprise-level applications, Solid understanding of software design patterns and architecture, Ability to work in a hybrid work model, Fluent English proficiency, Good command of Polish, Legal right to work in the European Union 📃 Skills: Java, CI/CD, Microservices, Cloud, Architecture, DesignPatterns 🏢 Description: Empower innovative software solutions — shape the future of Java development! Warszawa-based opportunity with hybrid work model (up to 4 remote days per week) As a Senior Java Developer within our client’s software development team, you will be working for a leading industry innovator dedicated to delivering cutting-edge applications. Your expertise will drive the development of robust, scalable, and efficient systems that empower organizations and transform digital experiences. Your main responsibilities: Design, develop, and maintain high-quality Java applications aligned with project requirements Collaborate with cross-functional teams to deliver seamless software solutions Identify and troubleshoot technical issues to ensure optimal system performance Participate in code reviews, testing, and documentation to uphold coding standards Contribute to continuous integration and deployment processes to enhance development workflows Implement best practices in software development and contribute to technical design discussions You're ideal for this role if you have: At least 7 years of professional experience in Java development Strong proficiency in Java, with experience in enterprise-level applications Solid understanding of software design patterns and architecture Ability to work effectively in a hybrid environment with a flexible remote schedule Good command of Polish and English, with fluent proficiency in English Excellent problem-solving skills and attention to detail It is a strong plus if you have: (optional) Experience with cloud platforms or microservices architecture Knowledge of additional programming languages or frameworks Certifications in Java or related technologies Language Required for the role: Polish and English – fluent proficiency in English preferred Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Java Developer role focused on designing and delivering robust, scalable enterprise applications within a hybrid work model. The position involves full-cycle development, technical design, troubleshooting, and contributing to CI/CD processes. Ideal for experienced Java professionals who want to shape high-quality software solutions in a collaborative environment. 🗂️ Requirements: Minimum 7 years of professional experience in Java development, Strong proficiency in Java and enterprise-level applications, Solid understanding of software design patterns and architecture, Fluent English proficiency, Good command of Polish, Ability to work in a hybrid work model, Legal right to work in the European Union 📃 Skills: Java, CI/CD, Microservices, Cloud, Architecture, DesignPatterns 🏢 Description: Empower innovative software solutions — shape the future of Java development! Warszawa-based opportunity with hybrid work model (up to 4 remote days per week) As a Senior Java Developer within our client’s software development team, you will be working for a leading industry innovator dedicated to delivering cutting-edge applications. Your expertise will drive the development of robust, scalable, and efficient systems that empower organizations and transform digital experiences. Your main responsibilities: Design, develop, and maintain high-quality Java applications aligned with project requirements Collaborate with cross-functional teams to deliver seamless software solutions Identify and troubleshoot technical issues to ensure optimal system performance Participate in code reviews, testing, and documentation to uphold coding standards Contribute to continuous integration and deployment processes to enhance development workflows Implement best practices in software development and contribute to technical design discussions You're ideal for this role if you have: At least 7 years of professional experience in Java development Strong proficiency in Java, with experience in enterprise-level applications Solid understanding of software design patterns and architecture Ability to work effectively in a hybrid environment with a flexible remote schedule Good command of Polish and English, with fluent proficiency in English Excellent problem-solving skills and attention to detail It is a strong plus if you have: (optional) Experience with cloud platforms or microservices architecture Knowledge of additional programming languages or frameworks Certifications in Java or related technologies Language Required for the role: Polish and English – fluent proficiency in English preferred Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: The offer is for a Senior Java Developer to build and maintain a customer-facing portal integrating multiple vendors, working in a hybrid model in Kraków. The role focuses on developing, enhancing, and maintaining business applications with strong emphasis on code quality, system integration, and continuous delivery. You will collaborate with cross-functional teams to design, debug, refactor, and improve scalable client-server solutions. 🗂️ Requirements: 3+ years experience with Java 8, Java 11 or Kotlin, Working knowledge of SQL databases, Basic knowledge of HTML and CSS, JavaScript skills for client-side debugging, Experience with client-server architecture, HTTP and REST, Knowledge of dependency injection, services and APIs, Experience with EngX, Strong object-oriented programming skills, Experience developing business applications with data storage and integration, Experience integrating 3rd-party software solutions, Understanding of data modeling, system integration and unit testing, Knowledge of web technologies, Advanced English, Residence in Kraków (hybrid work model) 📃 Skills: Java, Kotlin, SQL, HTML, CSS, JavaScript, HTTP, REST, OOP, EngX, APIs, UnitTesting, DataModeling, SystemIntegration, Cloud 🏢 Description: We are seeking a Senior Java Developer to join our driven team. You will be working in a project team that demands technical excellence and whose members are expected to hold each other accountable for the overall success of the output. The team strives to enable the client's organization to satisfy business customers through the continuous delivery of valuable and high-quality software that drives business performance. If you're ready to make an impact in a dynamic environment, we want to hear from you! For this role, we consider candidates residing in Kraków, due to a hybrid mode of work, with 3 days per week working from the office. Responsibilities Develop and maintain a front-end application to allow customers to interact with multiple vendors providing services through this portal Develop software patches and new features Write and review technical documents, including design, development, and revision documentation Create applications using standard and cloud-based software development tools Test, debug, maintain, and update programs Analyze, review, and modify programs to increase operating efficiency or meet new requirements Investigate, document, and resolve technical issues Collaborate with internal teams to define and implement solutions that improve the provider experience Perform code refactoring, reduce technical debt, and adopt a product mindset to assess code and recommend improvements Requirements 3+ years of experience with Java 8, Java 11, or Kotlin Working knowledge of SQL databases Basic knowledge of HTML/CSS Skills in JavaScript (at least at a level sufficient to understand client-side request-response flow and debug in-browser errors) Experience with client-server architecture, HTTP, and REST Knowledge of dependency injection, services, and APIs Experience with EngX Proven technical problem-solving skills Experience in object-oriented programming Experience developing business applications, including data storage and application integration Experience implementing, configuring, customizing, and integrating 3rd-party software solutions Solid understanding of information management, data modeling, system integration, and development methodologies (including unit testing) Knowledge of web technologies Quick learner Advanced written and verbal communication skills in English We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule 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: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Senior Java Developer role focused on building, maintaining, and optimizing scalable Java applications for complex financial and enterprise systems in a hybrid Krakow setup. The position involves working with microservices architecture, REST APIs, and databases within an Agile environment. You will contribute to design, development, performance optimization, and technical reviews. 🗂️ Requirements: Minimum 6 years of Java development experience, At least 5 years of experience with Spring and Spring Boot, Strong experience with Microservices architecture, Strong knowledge of REST APIs and integration patterns, Experience with SQL and NoSQL databases, Ability to design application architecture, Experience working in Agile environments 📃 Skills: Java, Spring, SpringBoot, Microservices, REST, SQL, NoSQL, APIs, Architecture, Agile 🏢 Description: 📍 Location: Krakow, hybrid 3 days/week Role: Senior Java Developer Role Description: We are looking for an experienced Java Developer to join technology team. You will be responsible for developing, maintaining, and optimizing Java-based applications that support complex financial systems and enterprise platforms. Key Competencies: Agile way of working and collaboration in cross-functional teams Advanced Java concepts and object-oriented design principles Java API management, RESTful services, and Microservices architecture Database technologies (SQL / NoSQL) and performance optimization Requirements: Minimum 6 years of experience in Java development Strong experience with Spring / Spring Boot and Microservices (5+ years) Good understanding of REST APIs, integration patterns, and application architecture Experience with database technologies and writing efficient queries Ability to work in a team environment and communicate effectively with technical and non-technical stakeholders Experience working in Agile delivery environments Nice-to-Have / Bonus Skills: Experience in production support and troubleshooting Participation in design and architecture reviews Exposure to cloud platforms and modern deployment pipelines Mentoring or leading technical discussions Responsibilities: Design, develop, and maintain scalable Java applications Participate in design and code reviews Troubleshoot issues and optimize system performance Collaborate with business analysts and other teams to deliver solutions Prepare technical documentation and reports as needed