Java Full Stack Developer

🏢 Summary: B2B Senior Full-Stack Software Engineer role focused on building Java-based enterprise applications with strong integration of Agentic AI tools to enhance development workflows. The position involves end-to-end development, CI/CD pipeline design, automated testing, security implementation, and containerized deployments in an Agile environment. The role combines backend, frontend, DevOps, and AI-assisted engineering practices. 🗂️ Requirements: Minimum 5 years of hands-on Java development experience, Strong experience with Spring Boot and Spring Security, Solid knowledge of Hibernate / JPA and ORM concepts, Experience with relational databases (MySQL, PostgreSQL, or Oracle), Proficiency in HTML5, CSS3, JavaScript and one modern frontend framework (React, Angular, or Vue.js), Hands-on experience with JUnit, Mockito, Cucumber and integration testing, Practical experience designing and maintaining Jenkins CI/CD pipelines, Understanding of cryptographic principles and secure key management, Experience with Docker and Kubernetes, Experience designing and implementing RESTful APIs, Understanding of software architecture patterns and design principles, Experience working in Agile/Scrum environments 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, Hibernate, JPA, MySQL, PostgreSQL, Oracle, HTML5, CSS3, JavaScript, React, Angular, Vue, JUnit, Mockito, Cucumber, Jenkins, Docker, Kubernetes, REST, Cryptography, GitHubCopilot, ChatGPT, Claude, Cline 🏢 Description: Senior Software Engineer (Full-Stack, Agentic AI Focus) Warsaw, hybrid 1 day/week B2B contract We are looking for a talented Senior Software Engineer to join our dynamic development team. This role focuses on full-stack development , with a strong emphasis on leveraging Agentic AI tools and technologies to drive efficiency, innovation, and smarter development workflows. The ideal candidate brings solid experience with Java-based enterprise applications , a strong engineering mindset, and a passion for using cutting-edge AI technologies to enhance productivity, code quality, and collaboration across the development lifecycle. Key Responsibilities 1. Development & Engineering Design, develop, and maintain full-stack applications using Java and modern web technologies. Build robust backend services using the Spring Framework (Spring Boot, Spring Security). Develop and optimize database interactions using Hibernate ORM . Create responsive, intuitive, and user-friendly frontend interfaces. Integrate Agentic AI tools and technologies to improve development efficiency and code quality. Participate in the entire software development lifecycle , from requirements analysis to deployment. Implement cryptographic solutions and security protocols to ensure safe handling of sensitive data. 2. CI/CD & DevOps Design, build, and maintain Jenkins CI/CD pipelines for automated build, testing, and deployment. Configure and optimize continuous integration workflows to ensure high code quality and rapid delivery. Implement automated testing integration within CI/CD pipelines. 3. Agentic AI Tools & Technology Integration Leverage AI-powered development tools (GitHub Copilot, ChatGPT, Claude, Cline, etc.) to accelerate coding, troubleshooting, and problem-solving. Utilize AI tools for code review, automated testing, and documentation generation . Stay up to date with emerging Agentic AI technologies and assess their potential to enhance development workflows. Share knowledge and best practices for AI-assisted development across the team. 4. Testing & Quality Assurance Write comprehensive unit tests using JUnit, Mockito, and other testing frameworks. Develop and execute integration tests to ensure system reliability and stability. Implement automated testing strategies and maintain strong test coverage standards . Participate in code reviews and uphold high coding and quality standards. Debug and troubleshoot complex technical issues . 5. Collaboration & Process Work closely with cross-functional teams including product managers, designers, and QA engineers. Actively participate in Agile/Scrum development processes . Contribute to technical documentation and internal knowledge sharing. Continuously improve development processes, tools, and team efficiency . Required Qualifications Technical Skills Java Expertise: Minimum 5 years of hands-on experience in Java development. Spring Framework: Strong experience with Spring Boot and Spring Security . Hibernate / JPA: Solid knowledge of ORM concepts, entity mapping, and database optimization. Database Technologies: Experience with relational databases such as MySQL, PostgreSQL, or Oracle . Frontend Technologies: Proficiency in HTML5, CSS3, JavaScript , and modern frameworks (React, Angular, or Vue.js). Testing Frameworks: Hands-on experience with JUnit, Mockito, Cucumber , and integration testing tools. CI/CD Tools: Practical experience designing and maintaining Jenkins pipelines . Cryptography: Understanding of cryptographic principles including encryption/decryption, digital signatures, and secure key management. Containerization: Experience with Docker and Kubernetes . API Development: Experience designing and implementing RESTful APIs . Architecture Knowledge: Understanding of software architecture patterns and design principles . Agile Methodologies: Experience working within Agile/Scrum environments . Preferred Qualifications Bachelor’s degree in Computer Science, Software Engineering, or a related field. Payment industry experience: 2+ years of experience working within payment systems or financial platforms.

🏢 Summary: Senior Full Stack Engineer role focused on building enterprise-grade Java applications with end-to-end ownership across backend, frontend, security, and CI/CD. The position requires daily commercial use of Agentic AI tools to accelerate development, testing, and code quality. You will design secure, scalable systems using modern Java frameworks and DevOps practices. 🗂️ Requirements: 5+ years commercial experience with Java, Proven commercial experience using AI-powered development tools, Strong proficiency in Spring Boot, Strong proficiency in Spring Security, Strong proficiency in Hibernate or JPA, Experience with HTML5, CSS3, and JavaScript frameworks, Hands-on experience with React, Angular, or Vue, Strong experience designing and maintaining Jenkins CI/CD pipelines, Experience with Docker and Kubernetes, Experience designing RESTful APIs, Solid understanding of cryptography and secure key management, Experience with JUnit and Mockito for automated testing 📃 Skills: Java, SpringBoot, SpringSecurity, Hibernate, JPA, SQL, MySQL, PostgreSQL, Oracle, JavaScript, HTML5, CSS3, React, Angular, Vue, Jenkins, Docker, Kubernetes, REST, GitHubCopilot, ChatGPT, Claude, Cline, JUnit, Mockito, Cucumber, Cryptography, CI/CD, Agile, Scrum 🏢 Description: We are seeking a Senior Full Stack Engineer to join our development team, focusing on building robust Java-based enterprise applications while heavily leveraging Agentic AI tools to drive efficiency and innovation. In this role, you will be responsible for the end-to-end software development lifecycle, from backend services and database optimization to user-friendly frontend interfaces and secure CI/CD pipelines. A crucial aspect of this position is the daily, hands-on integration of AI-powered development tools to accelerate coding, code review, and problem-solving. Tech Stack: Java, Spring Boot, Spring Security, Hibernate ORM, SQL (MySQL/PostgreSQL/Oracle), JavaScript (React/Angular/Vue.js), Jenkins, Docker, Kubernetes, RESTful APIs, Agentic AI (GitHub Copilot, ChatGPT, Claude, Cline) Responsibilities: Design, develop, and maintain full-stack applications using Java and modern web technologies. Integrate Agentic AI tools (like GitHub Copilot, ChatGPT, Claude, and Cline) into daily development workflows to accelerate coding, code reviews, testing, and documentation. Design, build, and maintain Jenkins CI/CD pipelines to optimize automated builds, tests, and deployments. Implement robust cryptographic solutions and security protocols to protect sensitive data. Write comprehensive unit and integration tests using JUnit, Mockito, and Cucumber to ensure high reliability. Share best practices for AI tool usage across the team and continuously evaluate emerging Agentic AI technologies. Debug complex technical issues, participate in code reviews, and collaborate closely with product, design, and QA partners within an Agile/Scrum framework. Min requirements: COMMERCIAL EXPERIENCE WITH AI TOOLS IS OBLIGATORY: You must have proven, commercial experience using AI-powered development tools (e.g., GitHub Copilot, ChatGPT, Claude, Cline) to accelerate software delivery. 5+ years of hands-on software development experience with Java . Strong proficiency in Spring Boot , Spring Security , and Hibernate/JPA . Solid experience with frontend technologies (HTML5, CSS3, JavaScript, and frameworks like React, Angular, or Vue.js). Strong, hands-on experience designing and maintaining Jenkins CI/CD pipelines . Solid understanding of cryptography (encryption/decryption, digital signatures, and secure key management). Experience with containerization (Docker, Kubernetes) and designing RESTful web services. Strong background in automated testing (JUnit, Mockito). Would be a plus: 2+ years of experience in payment processing, fintech, or financial services. Knowledge of payment protocols (ISO 8583, EMV), PCI DSS compliance, and financial regulations. Experience with HSMs (Hardware Security Modules) and payment-industry cryptographic standards. Experience with microservices, distributed systems, and cloud platforms (AWS, Azure, or GCP). Knowledge of Android or iOS app development. Contributions to open-source projects or active technical blogging. We offer: Opportunity to work on bleeding-edge projects Work with a highly motivated and dedicated team Competitive salary Flexible schedule Benefits package - medical insurance, sports Corporate social events Professional development opportunities Well-equipped office About us: Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI , supported by profound expertise and ongoing investment in data , analytics , cloud & DevOps , application modernization and customer experience . Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.

🏢 Summary: Senior Full Stack Developer role focused on building AI-driven solutions for Global Markets using NLP technologies. The position involves designing and delivering scalable microservices-based systems in a hybrid work model while contributing across the full software development lifecycle. You will work in a small agile team to create robust digital products for institutional banking. 🗂️ Requirements: Minimum 5 years software development experience, Strong knowledge of SOLID, Clean Code, DDD, BDD, Proven experience with Java and Python, Hands-on experience with Spring Framework, Experience with SQL and NoSQL databases, Experience with PostgreSQL and MongoDB, Experience with microservices architecture, Experience with event streaming technologies, Fluent English, Legal right to work in Europe 📃 Skills: Java, Python, Spring, SQL, NoSQL, PostgreSQL, MongoDB, Microservices, EventStreaming, JavaScript, Vue, NLP, AI, MachineLearning, LangChain, LangGraph 🏢 Description: Ignite innovation at the forefront of financial technology — design and develop transformative AI-driven solutions. Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Full Stack Developer , you will be working for our client, a leader in Global Markets Technology within the Corporate and Institutional Banking sector. You will be part of an award-winning AI Markets team, leveraging natural language processing (NLP) to revolutionize how institutional investors interact with global markets. This role offers a unique opportunity to contribute to cutting-edge digital services that shape the future of financial technology and accelerate your career growth. Your main responsibilities: Collaborate within a team of 4-6 engineers alongside a dedicated product owner to deliver high-quality features. Break down business requirements into user stories and execute iterative deliveries to production. Engage in all phases of the development lifecycle, including analysis, testing, and production support. Maintain a focus on product support, ensuring solutions are sustainable and robust. Identify areas of technical debt and balance new functionality development. Design scalable, efficient solutions following established technology guidelines. Pair with team members to share knowledge and develop innovative system architectures. You're ideal for this role if you have: At least 5 years of extensive development experience in software engineering. Deep understanding of software development principles (SOLID, Clean Code, DDD, BDD). Demonstrable expertise in Java and Python. Extensive experience with Spring Framework. Proficiency with SQL and NoSQL databases (PostgreSQL, MongoDB). Prior experience with event streaming technology and microservices architecture. Ability to collaborate and teach engineering teams to develop new systems. Effective written and spoken communication skills in English, fluent level. It is a strong plus if you have: JavaScript / Vue.js experience. Knowledge or experience in machine learning, NLP, AI, data science, or prompt engineering. Familiarity with LangChain, LangGraph, and Clean Architecture principles. Language required for the role: Fluent command of English, both written and spoken. Eligibility to work in this role: Only candidates with an existing legal right to work in Europe 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 / Full Stack Engineer role focused on building a modern API platform for business banking within an international Agile team. The position centers on backend development using Java and Spring Boot in a distributed Open Banking environment. Hybrid work model with collaboration across multiple international markets. 🗂️ Requirements: 5+ years of recent experience in software development, Strong experience with Java 21, Practical experience with Spring Boot, Experience in Microservices architecture, Experience with Oracle databases, Experience with Git, Experience with Maven, Experience with Jenkins, Ability to work in Agile team environment 📃 Skills: Java, Spring, Microservices, Oracle, Git, Maven, Jenkins, Hibernate, JPA, TypeScript, Angular, React, Docker, Kubernetes, MQ 🏢 Description: We are looking for a Senior Java Developer / Full Stack Engineer to join an international Agile team working on the development of a modern API platform for business banking customers. The role is based in Tricity (Gdańsk or Gdynia) with a hybrid model (3 days per week in the office). We are also open to candidates based in Warsaw. RESPONSIBILITIES As a Java Developer / Full Stack Engineer, you'll join a strategic digital transformation initiative focused on delivering modern API-based services for business customers. You will be part of an Open Banking development hub responsible for building a new, unified company API platform used across multiple international markets. You will work within a dedicated Agile team in a distributed digital hub environment. REQUIREMENTS 5+ years of continued recent experience in development and software engineering, preferably in large corporate institutions Strong collaboration skills with a passion for working in a team-oriented environment Solid understanding and practical experience with modern backend technologies including: Java 21, Spring Boot, Microservices, Oracle, Git, Maven and Jenkins. NICE TO HAVE This is a backend-focused role, with frontend expertise being an additional asset Experience with Java Reactive programming. Hibernate/JPA Experience building highly available applications, TypeScript, Modern Frontend Framework (Angular/ React), Docker, Kubernetes, MQ. WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract. Hybrid work from Gdańsk/Gdynia or Warsaw (3 times a week in the office). Current support during the cooperation Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care, life insurance, 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. Ilona WójcikJunior IT Delivery Consultantilona.wojcik@speedapp.pl

🏢 Summary: Senior Java Developer role focused on building and integrating AI-powered financial solutions using Java, Spring Boot, and large language models in a fully remote environment. The position involves developing scalable AI systems, implementing agent-based architectures, and supporting AI-driven development workflows across cross-functional teams. 🗂️ Requirements: 5+ years of professional IT experience, Strong expertise in Java, Strong expertise in SpringBoot, 1+ year of hands-on experience deploying LLMs in production, Knowledge of agent-based architectures, Experience with SpringAI, Experience with LangChain4j, Experience with LLM API integrations, Experience with embeddings, Experience with vector databases, Familiarity with AI observability tools, Ability to lead technical workshops, STEM background, Good command of Polish, Communicative English, Legal right to work in the European Union 📃 Skills: Java, SpringBoot, SpringAI, LangChain4j, LLMs, ReAct, MCP, Copilot, Claude, APIs, Embeddings, VectorDB, Observability, Angular, Python, TypeScript 🏢 Description: Empower AI innovation—shape the future of intelligent finance solutions! 100% remote work (once/twice a month visit in Wrocław office) As a Senior Java Developer , you will be working for our client, a leader in the financial technology industry, focusing on integrating advanced AI tools into scalable systems. You will contribute to pioneering AI adoption using Java and Spring Boot within a collaborative, cross-team environment. Join us and help shape the future of intelligent finance solutions while accelerating your career growth. Your main responsibilities: Develop and optimize Java-based applications and AI-powered features employing Spring Boot, ensuring high performance and reliability. Lead the adoption and integration of AI-SDLC tools such as GitHub Copilot, Claude Code, and Copilot Extensions within development workflows. Design and implement agentic and multi-agent system architectures, including ReAct patterns, MCP, and orchestration frameworks. Collaborate on integrating LLMs via APIs, embeddings, vector databases, and ensuring observability and security in AI systems. Conduct workshops and knowledge-sharing sessions on AI workflows, agentic development, and security best practices. Contribute to specification-driven development processes, ensuring scalable and maintainable codebases. Support continuous delivery and deployment pipelines with a focus on AI system integration. Engage in cross-team collaboration to foster innovative AI-driven solutions in finance. You're ideal for this role if you have: 5+ years of professional experience in IT, with extensive Java and Spring Boot expertise. At least 1+ year of hands-on experience deploying Large Language Models (LLMs) in production environments. Deep knowledge of agent-based architectures such as ReAct, MCP, and orchestration frameworks. Experience with Spring AI, LangChain4j, LLM API integrations, embeddings, and vector databases. Familiarity with observability tools for AI systems and development of specification-driven solutions. Proven ability to lead workshops and facilitate technical discussions. A background in STEM disciplines. It is a strong plus if you have: (optional) Experience with Angular, Python, or TypeScript. Knowledge of enterprise LLM integrations and advanced AI security measures. Language required for the role: Polish: Good command English: Communicative level Eligibility to work in: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: The offer is for a Senior FullStack Developer (Java & Angular) to design and develop scalable credit and banking applications within an international banking environment. The role focuses on building and maintaining microservices-based systems using modern Java and Angular technologies in a hybrid work model. You will contribute to full lifecycle development, code quality, and cross-location collaboration in a global setup. 🗂️ Requirements: Minimum 4 years experience as FullStack Developer, Angular 8+ experience (preferably 14), Strong Java 11+ experience (project on Java 17), Experience with Spring Boot, Spring Batch, Spring Security, Experience with RESTful microservices, Experience with Hibernate and JUnit, Experience with SQL and PL/SQL, Experience with Oracle databases, Knowledge of HTML, CSS, TypeScript, JavaScript, Experience with Jenkins and CI/CD, Understanding of Agile methodologies, Fluent English, Legal right to work in EU 📃 Skills: Java, Angular, TypeScript, JavaScript, HTML, CSS, Spring, SpringBoot, SpringBatch, SpringSecurity, Hibernate, JUnit, REST, Microservices, SQL, PLSQL, Oracle, Jenkins, CI/CD, JSON, XML 🏢 Description: Unleash innovation at the intersection of finance and technology — shape the future of international banking! Warsaw or Krakow-based opportunity with a hybrid work model, offering 4 remote days per week. As a Senior FullStack Developer – Java & Angular , you will be working for our client, a leading European bank that operates across 72 countries and is driving a cutting-edge tech revolution. Join a new, state-of-the-art hub dedicated to developing critical banking systems for global organizations, pushing the boundaries of financial technology and innovation. Your main responsibilities: Develop and design highly scalable credit applications to support international banking operations Analyze user requirements, develop specifications, and design, code, test, and implement systems aligned with group standards and regulatory requirements Handle development and design projects with proactive estimation, planning, and status reporting to management across locations in Paris/India and ISPL Follow best practices and quality processes for software development Work independently on assigned tasks, with potential mentoring of team members on technical and functional topics Contribute to code reviews and ensure the ongoing maintenance and refactoring of applications Ensure seamless application maintenance and continuous improvement of code quality You're ideal for this role if you have: At least 4 years of experience as a FullStack Developer Proven expertise in Angular 8+ (preferably Angular 14), JSON, XML, TypeScript, JavaScript, HTML, CSS (minimum 2-3 years) Strong background in Java 11+ (project currently runs on Java 17), JDK 8+, Hibernate, JUnit, Spring Framework (Boot, Batch, Security), and RESTful microservices (minimum 2-3 years) Experience working with SQL and PL/SQL, Oracle databases Good understanding of Agile methodologies, web services, APIs, and micro-services architecture Knowledge of DevOps principles & tools such as Jenkins for CI/CD pipelines Excellent communication skills with a high level of soft skills Fluent English proficiency It is a strong plus if you have: Banking or financial industry experience and domain knowledge Language required for the role: Fluent English Eligibility to work on this 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 in English or Polish, along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Full Stack Developer role focused on building scalable Java (Spring Boot) backend services and React/TypeScript frontends to enhance financial operations and automation. The position involves leading technical initiatives, leveraging AI-assisted development tools, optimizing SQL Server databases, and managing CI/CD pipelines in Azure DevOps. The role combines hands-on development, architectural standards enforcement, and DevOps best practices in a hybrid EU-based environment. 🗂️ Requirements: 7+ years full stack development experience, Strong expertise in Java and modern frontend frameworks, Advanced proficiency in Spring Boot (Security, Data), Advanced proficiency in TypeScript and React, Hands-on experience with AI development tools (e.g., Claude Code), Deep knowledge of SQL Server and performance tuning, Experience with microservices architecture, Experience designing REST APIs, Experience with Docker and Kubernetes, Experience with Git and Azure DevOps CI/CD, Knowledge of design patterns and secure coding practices, Experience with automated testing frameworks, Fluent English (written and spoken), Legal right to work in the European Union 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, SpringData, TypeScript, React, SQLServer, TSQL, Microservices, REST, Docker, Kubernetes, Git, AzureDevOps, CI/CD, AI, Claude, Testing 🏢 Description: Elevate financial operations — craft scalable, intelligent full stack solutions that redefine efficiency! EU-based opportunity with remote work options (up to 5 days per week). As a Senior Java-React Full Stack Developer , you will be working for our client, a leader in financial services, committed to transforming the industry through innovative technology. You will design, develop, and deploy advanced solutions that enhance data accuracy, streamline transaction processing, and support automation, enabling smarter financial workflows. This role offers an exciting chance to lead technical initiatives in a hybrid environment, leveraging cutting-edge AI tools to accelerate development and maintain high standards of quality and security. Your main responsibilities: Design, develop, and deploy scalable Java backend services with Spring Boot to support financial operations and integration points. Build responsive, user-friendly interfaces using TypeScript and React, tailored for finance and operations teams. Leverage agentic AI development tools such as Claude Code or similar to accelerate feature implementation, while validating and refining AI-generated code for security and compliance. Optimize and maintain SQL Server databases, including complex queries, stored procedures, and indexing for high-volume financial workloads. Implement and manage CI/CD pipelines in Azure DevOps, ensuring reliable and efficient deployment. Lead code reviews and provide technical guidance across hybrid teams, including internal engineers, consultants, external vendors, and AI-assisted developers. Establish and enforce coding, architectural standards, and comprehensive technical documentation. Integrate solutions with existing financial systems, such as Sage Intacct, to enhance operational automation. Continuously improve application performance, scalability, and reliability within cloud environments, adapting based on real-world data. Collaborate closely with stakeholders to translate business needs into effective technical solutions. Ensure adherence to secure coding practices, design patterns, and DevOps best practices. Mentoring engineers in adopting AI-assisted development workflows and establishing code quality standards. You're ideal for this role if you have: 7+ years of professional full stack development experience, with strong expertise in Java and modern frontend frameworks. Advanced proficiency in Java (Spring Boot, Security, Data) and TypeScript/React. Hands-on experience with agentic AI development tools such as Claude Code or similar. Deep knowledge of SQL Server, including performance tuning, complex queries, and stored procedures. Solid understanding of microservices architecture, REST API design, and containerization (Docker, Kubernetes). Experience with Git, Azure DevOps CI/CD pipelines, and DevOps practices. Knowledge of software design patterns, secure coding practices, and automated testing frameworks. Excellent communication skills, capable of working effectively in a hybrid team and articulating technical concepts clearly. It is a strong plus if you have: Experience in financial services, private equity, or fund administration. Familiarity with Sage Intacct or other fund management platforms. Azure cloud services expertise. Python scripting capabilities. Experience working in Agile/Scrum environments. Exposure to agentic workflow frameworks such as LangChain or LangGraph. 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 designing, building, and operating scalable fintech backend systems using Java and Spring Boot in cloud environments. The position involves developing high-performance microservices and APIs for payment, trading, and settlement platforms, with end-to-end ownership from architecture to production support. The role requires close collaboration with international teams and ensuring reliability, consistency, and fault tolerance in distributed systems. 🗂️ Requirements: 3–5 years backend development experience, Strong experience with Java, Strong experience with Spring Boot, Experience building scalable backend services and APIs, Knowledge of SQL and NoSQL databases, Understanding of microservices architecture, Understanding of distributed systems, Experience with asynchronous processing, Experience across full SDLC, Experience with AWS or Azure, Professional English proficiency 📃 Skills: Java, SpringBoot, Microservices, SQL, NoSQL, PostgreSQL, MySQL, MongoDB, AWS, Azure, REST, APIs, SDLC, DistributedSystems, AsynchronousProcessing 🏢 Description: Senior Java Developer (Java, Spring Boot, Microservices) Position Overview 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 . Responsibilities 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. Requirements 3–5 years of professional backend development experience. Strong hands-on experience with Java and Spring Boot in production 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 . Previous exposure to banking, payments, trading, or financial transaction systems. 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.

🏢 Summary: Senior Java Developer role focused on designing, building, and operating scalable fintech backend systems handling high-volume transactions. The position involves developing Java/Spring Boot microservices, scalable APIs, and distributed architectures in cloud environments. You will collaborate with international teams to deliver reliable, production-grade financial platforms. 🗂️ Requirements: 3–5 years of backend development experience, Strong experience with Java and Spring Boot in production, Experience building scalable backend services and APIs, Strong knowledge of SQL and NoSQL databases, Understanding of microservices architecture and distributed systems, Experience with asynchronous processing, Experience across full SDLC, Experience with AWS or Azure cloud environments, Professional English communication skills 📃 Skills: Java, Spring, SpringBoot, Microservices, SQL, NoSQL, PostgreSQL, MySQL, MongoDB, AWS, Azure, REST, APIs 🏢 Description: Senior Java Developer (Java, Spring Boot, Microservices) Position Overview 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 . Responsibilities 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. Requirements 3–5 years of professional backend development experience. Strong hands-on experience with Java and Spring Boot in production 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 . Previous exposure to banking, payments, trading, or financial transaction systems. 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.

🏢 Summary: Full-time Senior Java Developer role focused on designing and maintaining high-performance, secure backend systems in a cloud-native environment. The position involves leading technical design, developing scalable applications with Java 17+ and Spring Boot, and supporting CI/CD and Kubernetes-based deployments. Work is remote or hybrid (Warsaw) within Agile, distributed teams. 🗂️ Requirements: Mastery of Java 17+, Proficiency in Spring, Spring Boot, Spring Security, Experience in cloud-native application development, Experience with Maven, Experience with SQL databases, Proficiency in Git and GitHub including pipeline development, Knowledge of JUnit, AssertJ, Hamcrest, Experience with CI/CD tools and processes, Experience with Kubernetes and Helm, Bash/Shell scripting skills, Experience in enterprise environments, Experience working in Agile (Scrum/Kanban) teams 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, Maven, SQL, Git, GitHub, JUnit, AssertJ, Hamcrest, CICD, Kubernetes, Helm, Bash, Shell, Docker 🏢 Description: Type of work : Full-time; Remote/Hybrid (Warsaw) As a Senior Java Developer, you will lead the design, development, and maintenance of high-performance backend systems. You’ll collaborate with product managers, architects, and developers to ensure our solutions are scalable, secure, and future-ready. We encourage the use of Generative AI tools like GitHub Copilot to boost innovation and productivity. Requirements Java, Postgresql, Liquibase, Spring boot, Angular. Responsibilities Develop robust, configurable applications using Java 17+ and Spring Boot to effectively meet the diverse requirements of multiple customers. Ensure the efficiency of PostgreSQL databases for scalable solutions. Ensure security, scalability, and performance in all backend solutions. Employ Bash/Shell scripting for automation and comprehensive system integration tasks. Contribute to application deployment using Docker and Kubernetes , while utilizing Helm for package management. Communicate effectively in English (B2/C1 level) within distributed teams. Participate actively in scrum events. Collaborate with other engineering teams. Lead design discussions and mentor other developers. Client A global leader with a sharp focus on lottery solutions. A confident step forward building on a long history of delivering safe and secure technology, demonstrating strong commitment to customers as a dedicated lottery service provider. Leveraging collective insight, experience, and expertise to create reliable and engaging solutions that help lottery clients achieve objectives, meet player needs, and deliver meaningful benefits to communities.