Java Developer | FinTech Client | Serious Earning Potential

🏢 Summary: Full stack engineering role within a global investment bank focused on delivering and supporting business-critical applications in a modern DevOps environment. The position involves building and enhancing production systems, ensuring reliability, and collaborating with global teams to meet delivery milestones. You will work across a contemporary tech stack while owning application functionality end-to-end. 🗂️ Requirements: Strong full stack engineering experience, Experience with Java and Spring Boot, Experience with React and REST APIs, Experience with microservices architecture, Ability to support and own production systems, Experience with PostgreSQL, Experience with messaging systems (MQ or Solace), Working knowledge of Kubernetes and Redis, Familiarity with DevOps and observability tools, Strong communication skills in global teams, DevOps mindset (development, testing, support) 📃 Skills: Java, Spring, Microservices, React, REST, JSON, PostgreSQL, MQ, Solace, Kubernetes, Redis, Grafana, Prometheus, Splunk, OpenTelemetry, Jenkins, Ansible 🏢 Description: Join a global engineering team delivering and supporting business-critical applications . What You’ll Do Deliver features and enhancements to production Partner with the business to meet delivery milestones Diagnose and fix issues to ensure system reliability Act as SME for application functionality Create clear documentation and best practices Tech Stack Java 21, Spring Boot, Microservices React, REST APIs, JSON PostgreSQL MQ / Solace Kubernetes, Redis (working knowledge) DevOps / Observability: Grafana, Prometheus, Splunk, OpenTelemetry, Jenkins, Ansible What We’re Looking For Strong full stack engineering experience Comfortable owning production systems Proactive, accountable, and highly responsive Strong communicator across global teams DevOps mindset (development + testing + support) Why Join Work on high-impact systems in a global investment bank Full ownership in a modern DevOps environment Collaborative, fast-paced, and continuously improving team

🏢 Summary: Senior Java Backend Engineer role focused on building and enhancing low-latency, high-performance financial trading systems within a capital markets division. The position involves core Java development from the ground up, working on distributed, large-scale systems processing millions of transactions daily. Fully remote role for Poland-based engineers, collaborating directly with North American teams. 🗂️ Requirements: 6+ years of backend Java development experience, Strong knowledge of algorithms, complexity and data structures, Deep understanding of Java standard library data structures and internals, Experience building distributed service-based systems, Experience working with message queues, Ability to diagnose and optimize low-latency, high-throughput systems, Experience with production issue analysis and root-cause diagnosis, Fluent English proficiency, Availability to work in US Eastern business hours during onboarding, Legal right to work and reside in Poland 📃 Skills: Java, JVM, Spring, SpringBoot, AWS, Algorithms, DataStructures, DistributedSystems, MessageQueues, Microservices 🏢 Description: Join the Java Engineering Team at a top N. American Bank Are you a Java engineer who enjoys working on large scale and high performance software? Do you love working with smart people on meaningful technology? Want to work in capital markets on financial trading systems? If so, read on. The Role at a Glance Senior Java Backend Engineer Fully remote for a top N. American bank (for residents of Poland only) Openings on multiple teams in the capital markets division (prime brokerage, platform team) Part of the core team - this is not a legacy support role or an outsourced B team We’re hiring experienced backend engineers (6+ years) to join a major N. American bank — directly supporting the development of financial trading systems . This is not a legacy maintenance or support role — you’ll be part of the core product team , building highly-performant, low-latency systems used across the firm. Are you a passionate Java developer who thrives on solving complex problems in low-latency, high-throughput trading systems ? Join us and work on interesting financial system engineering problems. Why Join Us? Work on a large-scale, low-latency trading system processing millions of daily transactions. No Legacy: Join an actively developed system — the engineers who built it originally are still on the team. Collaborate with a world-class team of developers across North America and Europe. Enjoy the stability of a long-term, fully remote role that only a bank can offer. A successful candidate will be a very strong programmer with current Java development experience. They must also be curious, open-minded, and desire to learn new things. English proficiency is a must. This role is for developers who excel at programming core Java from the ground up, not just integrating frameworks or APIs. If you’re fascinated by understanding systems ‘under the hood,’ this role is for you. Successful candidates enjoy geeking out about data structures and debugging application performance issues. This is a fully remote backend Java development role for a developer in Poland . You will be working through a Polish company that will provide the support and administrative assistance to make you successful in the role. We are looking for people to join the team long-term. Different teams have different working hour arrangements. For all roles, to ensure efficient onboarding, you’ll work in sync with the American team during US Eastern business hours for the first two months . Working this way maximizes your time overlap for answering questions, which means you can learn quickly. That means working until 21:00 CET. After that, some teams offer more flexibility your schedule can shift closer to standard Polish business hours. Only open to residents of Poland. Polish citizens, as well as legal residents with permission to work in Poland are welcome. What we offer Work that matters in the financial domain: Work on a trading system at an established financial institution, processing millions of transactions daily. Professional growth: Collaborate with smart, highly capable developers in a supportive and challenging environment. Direct collaboration : You will work directly with the client team in North America and in Poland. 1st-tier work : This is not a technical support or legacy maintenance role. The system is functional and is actively being built and you will take part in updating it. The people who built the system are still part of the team. Long-term commitment: This is not a fixed-scope or fixed-term outsourcing role; we value people who want to grow and contribute long-term. Flexibility & remote work: Fully remote position based in Poland with increasing schedule flexibility post-onboarding. Competitive Compensation: Above-average pay and ample time-off options. Responsibilities Design and implement robust software solutions for the bank’s trading systems using core Java (versions vary from team to team, and include 8, 17 and 21). Understand, develop, and improve the subsystems used by other teams in the trading platform. Create thorough test cases to ensure software stability and reliability. Collaborate with operations teams regarding building new features and improving existing functionality. Support production issues, including root-cause analysis and diagnosis. Requirements Must have Strong understanding of programming concepts, including algorithms, complexity, and data structures. Good knowledge of the data structures in the Java standard library - both breadth and internals. Experience building distributed service-based applications based on message queues. Strong analytical and problem-solving skills, to effectively diagnose production performance issues measured in microseconds. Open mind, curiosity, and a strong desire to learn new technologies and business domains. Ability to clearly explain non-trivial systems and algorithms. Ability to follow and understand technical conversations. Know when and how to ask questions that speed up learning. Ability to align your working schedule to US Eastern business hours. Nice to have Experience with financial markets and trading systems. Knowledge of AWS systems. Experience with Spring boot (some teams). Experience with JVM tuning (some teams). Experience working remotely with North American firms. A computer science degree from a top Polish school. The recruitment process Submit your CV. Answer a few written questions and a short programming exercise which you can do at your own pace. Participate in a three-stage interview process: Discuss your experience and skills. Solve verbal algorithm problems (focus on clarity and understanding). Tackle live coding challenges (no trick questions). No take-home assignments – we respect your time. Successful candidates will need to pass a standard background check.

🏢 Summary: Senior Java Engineer role focused on developing and maintaining applications supporting financial operations and the trade lifecycle in investment banking. The position involves building high-quality, testable software, including streaming solutions, within a Scrum team and contributing to modernization of securities management systems. The role includes close collaboration with global teams and production support responsibilities. 🗂️ Requirements: 3+ years of experience with Java, Experience with Spring Framework and Spring Boot, Experience with Maven or Gradle, Experience working in Agile Scrum methodology, Knowledge of test-driven and behavior-driven development, Experience with unit and integration testing, Hands-on experience with SQL, Hands-on experience with Unix, Experience with CI/CD pipelines, Ability to refactor and improve legacy codebases 📃 Skills: Java, Spring, SpringBoot, Maven, Gradle, SQL, Unix, CICD, Scrum, TDD, BDD 🏢 Description: We are looking for a Senior Java Engineer to join a global team responsible for developing and maintaining a suite of applications that support financial operations and the trade lifecycle in the investment banking sector. In this role, you will contribute to the evolution of next-generation securities management systems, working closely with operations teams and business analysts to deliver solutions for diverse business needs. Our focus is on software craftsmanship — ensuring high quality and automation in everything we do, while always keeping business value in mind. If you're ready to make an impact in a dynamic environment, we want to hear from you! This role offers a hybrid model, with 3 days per week working from the client's office in Krakow, Poland. Responsibilities Develop new features and maintain the existing codebase Build streaming applications using Apache Flink Write unit, integration, and behavior tests Collaborate within a successful Scrum development team based on mutual respect Refine user requirements through behavior-driven development (BDD) Cooperate with other global IT teams Provide level 3 support, assisting the production operations team with rollouts and support-related matters Requirements Strong experience with Java programming (3+ years) Experience with the Spring stack (Spring Framework, Spring Boot) and build tools (Maven, Gradle) Clean coding and refactoring skills with strong problem-solving abilities Hands-on experience with Agile methodologies, particularly Scrum Awareness of test- and behavior-driven development Hands-on experience with SQL and Unix Experience with CI/CD Ability to improve legacy codebases and apply modern best practices to new projects Proactive attitude and comfort working in dynamic environments with fast-paced deliveries and changing requirements Excellent written and verbal communication skills in English (B2 level), and willingness to work as part of a global team Nice to have Experience with Apache Flink or other data streaming technologies Familiarity with monitoring and troubleshooting tools in production environments Experience working with large, distributed financial systems Knowledge of test and deployment automation tools We offer 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 Backend Engineer role focused on building ultra-low-latency trading systems for equities, FX, and other asset classes at a top North American bank. The position involves developing high-performance backend services for algorithmic order management and order routing in a fully remote setup for Poland-based engineers. Candidates will work directly with trading and product teams on actively developed greenfield and semi-greenfield capital markets systems. 🗂️ Requirements: Current Java programming experience, Strong understanding of algorithms, complexity, multi-threading, and Java standard libraries, Good knowledge of Java collections framework and data structures, Experience building backend services for front-office trading systems, Understanding of front-office workflows and electronic trading platforms, Experience with algorithmic order management systems or order routing systems, Expertise in multi-threading, event-driven systems, and performance tuning, Knowledge of low-latency trading systems, Ability to design maintainable high-quality solutions, Strong communication skills, English proficiency, Ability to work with 6-hour overlap with US Eastern business hours, Residency and work authorization in Poland 📃 Skills: Java, Algorithms, Multithreading, Collections, Trading, Low-latency, Performance, Backend, Order-routing, OMS, FX, Equities, Microservices, Databases, Time-series 🏢 Description: Want to work on trading systems at a top N. American Bank This isn’t just another dev role. It’s your chance to engineer the core of global trading. We’re talking ultra-low-latency architectures, real-time market data, and automation at scale — all in an environment where milliseconds matter and billions move. You’ll work on greenfield and semi-greenfield projects, building trading systems for equities, options, FX (forex), and more. If you thrive on complexity, love solving performance challenges under pressure, and want to collaborate directly with traders and product teams at the sharp edge of financial technology, this is your arena. The Role at a Glance Senior Java Backend Engineer Building trading systems, including high-performance backend services for algorithmic order management and order routing (multiple projects & various asset classes) Fully remote for a top N. American bank (for residents of Poland only) Part of the core team - this is not a legacy support role or an outsourced B team This role requires experience building trading systems, ideally with order routing or algorithmic order management. Some capital markets experience is required. If you enjoy working on low-latency, high-throughput trading systems, join us and build the next generation of high-performance capital markets solutions. Why Join Us? Work on a large-scale, low-latency trading system . No Legacy: Join an actively developed system — the engineers who built it originally are still on the team. Collaborate with a world-class team of developers across North America and Europe. Enjoy the stability of a long-term, fully remote role that only a bank can offer. A successful candidate will be a very strong programmer with current Java development experience. They must also be curious, open-minded, and desire to learn new things. English proficiency is a must. This role is for developers who excel at programming core Java from the ground up, not just integrating frameworks or APIs. If you’re fascinated by understanding systems ‘under the hood,’ this role is for you. Successful candidates enjoy geeking out about data structures and debugging application performance issues. This is a fully remote backend Java development role for a developer in Poland . You will be working through a Polish company that will provide the support and administrative assistance to make you successful in the role. We are looking for people to join the team long-term. Only open to residents of Poland. Polish citizens, as well as legal residents with permission to work in Poland, are welcome. What we offer Work that matters in the financial domain: You’ll be building a high-performance trading system at an established financial institution. Professional growth: Collaborate with smart, highly capable developers in a supportive and challenging environment. Direct collaboration : You will work directly with the client team in North America and in Poland. 1st-tier work : This is not a technical support or legacy maintenance role. The system is functional and is actively being built and you will take part in updating it. The people who built the system are still part of the team. Long-term commitment: This is not a fixed-scope or fixed-term outsourcing role; we value people who want to grow and contribute long-term. Flexibility & remote work: Fully remote position based in Poland with increasing schedule flexibility post-onboarding. Competitive Compensation: Top pay and ample time-off options. Responsibilities Design and implement robust software solutions for equities and FX trading systems using core Java. Build high-performance backend services that algorithmically manage and route orders. Create thorough test cases to ensure software stability and reliability. Collaborate with operations teams regarding building new features and improving existing functionality. Requirements Must have Current Java programming experience, with a strong understanding of programming concepts, including algorithms, complexity, and multi-threading, and Java’s language capabilities and standard libraries. Good knowledge of the data structures: familiarity with the Java collections framework, depth of understanding of the commonly used data structures, intuition on what to use when. Proven experience building backend services for front-office trading systems. Deep understanding of front-office workflows and electronic trading platforms (any asset class). Built or contributed to the algorithmic order management systems or order routing systems (any asset class). Expertise in multi-threading, event-driven systems, and performance tuning. Ability to break down complex workflows into maintainable, high-quality solutions. Strong communication skills and comfort working in high-stakes, trader-facing environments. Knowledge that is required for building low-latency (measured in microseconds) trading systems. Ability to align your work with a 6-hour overlap with US Eastern business hours. Nice to have Exposure to time-series databases and market data integration. Familiarity with algorithmic workflows and pricing engines. A computer science degree from a top Polish school. The recruitment process Submit your CV. Answer a few written questions and a short programming exercise which you can do at your own pace. Participate in a three-stage interview process: Written screen Technical screen interview Three technical interviews with future team members Discuss your experience and skills. Solve verbal algorithm problems (focus on clarity and understanding). Tackle live coding challenges (no trick questions). No take-home assignments – we respect your time. Successful candidates will need to pass a standard background check.

🏢 Summary: Opportunity for a Senior/Strong Mid Java Developer to design and build high-performance APIs and integrations connecting core systems with global brokers. The role focuses on developing scalable microservices architecture, managing high-traffic applications, and ensuring robust CI/CD practices. You will drive strategic system integrations and contribute to modernizing infrastructure for global scale. 🗂️ Requirements: 5+ years of Java experience, Strong knowledge of Spring and Hibernate, Experience designing REST APIs, Proficiency with SQL and relational databases, Experience with Maven in large-scale projects, Understanding of microservices architecture, Knowledge of design patterns, Experience with CI/CD tools, Ability to work with Java 8/17/21, English and Polish communication skills 📃 Skills: Java, Spring, Hibernate, SQL, REST, Maven, Git, TeamCity, Microservices, React, Kafka 🏢 Description: Take ownership of our platform's expansion by building high-performance bridges between our core systems and global external brokers. We are looking for a developer who combines deep Java expertise with an architectural mindset. Your Impact: Strategic Integrations: Design and build high-quality Java 8/17/21 APIs from scratch to enable seamless, scalable connectivity with international partners and brokers. Architecture Evolution: Contribute to modern, service-oriented designs using microservices to ensure our infrastructure is resilient and ready for global scaling. Data Mastery: Manage high-traffic applications using Spring, Hibernate, and SQL, ensuring peak performance and data consistency. Modern Engineering: Drive excellence via Git, Maven, and TeamCity, upholding high standards for CI/CD, clean code, and documentation. Full-Stack Awareness: Use your React knowledge to design user-centric APIs that are practical and easy for both internal and external teams to consume. Global Synergy: Collaborate across international borders, communicating effectively in both Polish and English to ensure smooth project delivery. What Supports Your Success: Experience: 5+ years of Java expertise (Senior or strong Mid+) with deep Spring & Hibernate knowledge. Technical Core: Mastery of REST API design, SQL, and large-scale Maven applications. Architectural Flair: Solid understanding of design patterns and microservices. Bonus Points: Experience with Apache Kafka, DDD/Hexagonal architecture, or migrating monoliths to microservices. Domain: Previous experience in Fintech is a significant plus.

🏢 Summary: Senior Java Software Engineer role focused on building and modernizing cloud-native platforms that connect trading systems with operations and regulatory applications within a global investment banking environment. The position involves developing scalable data processing and streaming solutions as part of a multiyear cloud transformation initiative. You will work in agile teams to migrate legacy systems and implement robust CI/CD-driven delivery pipelines. 🗂️ Requirements: Bachelor's degree in Computer Science or relevant technical certification, Strong proficiency in Java and object-oriented design, Hands-on experience with Apache Spark, Proficiency in Python, Experience with CI/CD pipelines and DevOps tools, Practical knowledge of TDD, Experience with cloud platforms (Azure, AWS, or GCP), Understanding of software design principles and patterns, Experience with agile development methodologies 📃 Skills: Java, Python, Apache, Spark, Azure, AWS, GCP, CI/CD, Azure, DevOps, GitHub, GitLab, TDD, Cloud, Databricks, Kubernetes 🏢 Description: For our client, a leading global investment banking institution, we are looking for a Senior Java Software Engineer who will be instrumental in transforming critical financial operations infrastructure. You'll work within an agile team to develop and deliver the strategic backbone that connects trading systems with operations and regulatory platforms, forming a cornerstone of the organization's digital transformation initiative. Our client operates in the investment banking and financial services domain, specifically focusing on digital operations transformation within regulatory and data management systems. This project is part of a multiyear strategic roadmap to migrate and leverage cloud technology to outperform existing technology stacks. The initiative plays a crucial role in enabling the investment bank to meet regulatory obligations while creating value from extensive financial data assets. You'll be part of the Digital Operations technology stream, working in small, autonomous agile teams that are empowered to respond to client demands while continuously improving the delivery experience. The team operates globally with members across multiple continents, fostering an inclusive and diverse collaborative environment. This role offers a hybrid model, with 3 days per week working from the client's office in Krakow, Poland. Ready to launch your career in cloud engineering? Apply now and join our global team! Responsibilities Design and develop strategic platforms enabling trade executions to flow seamlessly from trading systems to operations and regulatory applications Transform epics and features into robust, scalable functionality within cloud-native architectures Collaborate closely with agile pod members in sprint cycles to iteratively deliver on product requirements Work directly with product teams to understand and implement complex functional requirements Implement modern data streaming, real-time, and batch processing solutions Develop and maintain CI/CD pipelines using DevOps best practices Apply Test-Driven Development (TDD) methodologies to ensure code quality Contribute to cloud architecture design and implementation decisions Participate in code reviews and technical design discussions Support the migration of legacy systems to modern cloud-based solutions Requirements Bachelor's degree in Computer Science or relevant technical certification Strong proficiency in Java programming and object-oriented design principles Solid experience with Apache Spark for big data processing Proficiency in Python for data processing and automation tasks Significant experience with DevOps CI/CD pipelines and tools such as Azure DevOps, GitHub, or GitLab Strong background in Test-Driven Development (TDD) practices Proven experience with cloud architecture and deployment on Azure, AWS, or GCP platforms Deep understanding of software design principles and patterns Experience with agile development methodologies and sprint-based delivery Strong problem-solving and analytical skills Excellent communication and collaboration abilities Ability to work effectively in diverse, distributed teams Nice to have Experience with modern data streaming technologies and real-time processing frameworks Hands-on experience with Databricks for advanced analytics and machine learning Knowledge of Kubernetes for container orchestration and microservices deployment Understanding of financial services domain and regulatory requirements Experience with batch processing frameworks and data pipeline orchestration Familiarity with investment banking operations and trading systems Previous experience in digital transformation initiatives Knowledge of regulatory compliance frameworks in financial services 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: Lead Java Developer role focused on designing and building scalable, distributed cloud-native applications for AI-driven solutions within a global investment banking environment. The position involves leading architecture decisions, implementing advanced Java and Spring-based systems, and delivering secure, high-performance services in Azure. It combines hands-on development with technical leadership in a modern, data-intensive ecosystem. 🗂️ Requirements: 5+ years of Java development experience, Minimum 1 year of leadership experience, Proficiency in Java 18+, Strong experience with Spring Boot, Experience in developing RESTful APIs, Strong knowledge of PostgreSQL and Oracle databases, Experience with Hibernate and JPA, Experience with CI/CD pipelines, Hands-on experience with Azure cloud platform, Experience with monitoring and logging tools, Proficiency in automated testing frameworks, Experience with Kafka and message-driven architecture, Knowledge of OAuth2, JWT, and Spring Security, Fluent English (minimum B2) 📃 Skills: Java, Spring, SpringBoot, REST, OpenAPI, Swagger, PostgreSQL, Oracle, Hibernate, JPA, Jenkins, GitLab, Azure, Prometheus, Splunk, JUnit, TestNG, Mockito, JBehave, Kafka, OAuth2, JWT, SpringSecurity 🏢 Description: Join our innovative AI platform team as a Lead Java Developer within a leading global investment bank. You will collaborate with data scientists, software engineers, and business analysts to deliver advanced solutions for internal clients. Our team processes vast amounts of data for a variety of use cases, leveraging both classic machine learning and modern generative AI. We are rapidly expanding in the areas of chatbots and intelligent agents, working in a cloud-native, technologically advanced environment. You will be part of a forward-thinking organization at the forefront of digital transformation in financial services. The client values technical excellence, innovation, and collaboration, offering opportunities to work on impactful projects in a dynamic, global setting. Ready to launch your career in cloud engineering? Apply now and join our global team! This role offers a hybrid model, with 3 days per week working from the client's office in Krakow, Poland. Responsibilities Play a key role in designing and building highly scalable and distributed cloud applications Provide technology solutions that address business challenges and reinforce our leadership in digital financial services Design, plan, and deliver sustainable solutions using modern technologies Apply core and advanced concepts to develop business solutions Implement proofs of concept and application skeletons for the team Participate in or lead design reviews with peers and stakeholders to decide on architecture Conduct code reviews, test software as needed, and participate in application architecture, design, and other phases of the SDLC Requirements 5+ years of experience in Java development At least 1 year of relevant leadership experience Proficiency in Java 18+ and Spring Boot Experience with RESTful APIs development (OpenAPI/Swagger) Strong knowledge of databases (PostgreSQL, Oracle) and ORM frameworks (Hibernate, JPA) Familiarity with CI/CD pipelines (Jenkins, GitLab CI/CD) Hands-on experience with Azure cloud platform Monitoring and logging expertise (Prometheus, Splunk) Proficiency in testing frameworks (JUnit, TestNG, Mockito, JBehave) Competency in message-driven architecture and integration tools (Kafka, REST) Understanding of security elements, including OAuth2, JWT, and Spring Security Fluency in English, both written and spoken, at a minimum B2 level Nice to have Experience in the financial services industry Certification in Azure or related cloud technologies Familiarity with other programming languages and frameworks Understanding of Agile methodologies and DevOps practices 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 Engineer role focused on building and rewriting a low‑latency FX & Commodities Risk platform for a global investment bank. The position involves developing high‑performance, distributed backend systems supporting real‑time risk calculations across trading desks. This is a backend‑heavy role centered on multithreading, event streaming, and scalable data processing in a financial environment. 🗂️ Requirements: Financial services experience (FX Risk or trading systems), Strong Core Java expertise, Experience with Spring or Spring Boot, Knowledge of multithreading and concurrency, Experience building low-latency systems, Experience with distributed systems, Hands-on experience with Kafka or similar messaging systems, Experience with Hazelcast or distributed caching solutions, Experience with modern data stores (e.g., ClickHouse), Ability to work with complex legacy systems, Backend development experience in high-performance environments 📃 Skills: Java, CoreJava, Spring, SpringBoot, Kafka, Hazelcast, ClickHouse, Multithreading, Concurrency, LowLatency, DistributedSystems, JVM, WPF, C#, Haskell 🏢 Description: ** CANDIDATES MUST HAVE FINANCIAL EXPERIENCE ** Java Engineer – FX & Commodities Risk Platform Global Investment Bank | Low‑Latency Systems | B2B | Remote | Rate: 2100PLN + | Must have Financial Experience A global investment bank is expanding its FX & Commodities Risk engineering team and is hiring a Senior Java Engineer in Poland to help build a next‑generation risk platform used by trading desks in London, Singapore, and New York. This is a rare opportunity to work on a brand‑new system rewrite while learning from a complex, high‑performance legacy platform that has powered global trading for years. What We’re Looking For Strong experience with Core Java and Spring Solid understanding of multithreading, concurrency, and low‑latency systems Experience with Kafka, Hazelcast, or similar distributed technologies Familiarity with modern data stores (ClickHouse is a plus) Ability to learn from and navigate complex legacy systems Proactive mindset — someone who can drive development forward Strong communication and collaboration skills FX Risk or broader trading‑systems experience is a strong plus About the Platform The FX & Commodities Risk Platform provides real‑time risk calculations and reporting across multiple asset classes. The current system includes: Frontend: WPF (C#) Backend: Java (Core Java, Spring) Quant Library: In‑house, with Haskell used for interaction A full rewrite is underway, moving the platform to a modern, scalable architecture. What You’ll Work On You’ll play a key role in building the new platform, which is moving towards: Spring Boot Kafka for event streaming Hazelcast for distributed caching and computing ClickHouse for high‑performance data storage and reporting Key Engineering Focus Areas High‑performance multithreading & concurrency Low‑latency backend development Distributed systems using Kafka and Hazelcast Data‑intensive workloads using ClickHouse Interacting with the quant library (light Haskell exposure) Learning from the legacy system’s memory‑optimised design (critical for JVM stability) This is a backend‑heavy role with deep engineering challenges.

🏢 Summary: Senior/Expert Java Integration Developer role for a long-term banking transformation project focused on backend integrations, Java microservices, and modernization of Safekeeping and Corporate Actions platforms. The position involves building and enhancing integrations using Spring Boot, REST APIs, Kafka, and IBM MQ within an international Scrum environment. Hybrid B2B cooperation in Warsaw or Gdańsk with potential project extension. 🗂️ Requirements: 5+ years of commercial Java backend development experience, Strong Java knowledge, Experience with Spring Boot, Experience with Spring Integration, Experience with REST APIs, Experience with microservices, Strong SQL skills, Experience with relational databases, Experience with Oracle, Experience with Kafka and/or IBM MQ, Knowledge of Maven, Knowledge of Git, Experience with CI/CD pipelines, Experience with JUnit, Experience with Testcontainers, Experience analyzing production issues and integrations, Professional English 📃 Skills: Java, Spring, SpringBoot, SpringIntegration, REST, Microservices, SQL, Oracle, Kafka, IBMMQ, Maven, Git, CI/CD, JUnit, Testcontainers, Scrum 🏢 Description: Senior / Expert Java Integration Developer (Banking) 📍 Location: Warsaw or Gdańsk (hybrid – 2–3 days per week in the office) 💼 Contract: B2B 💰 Rate: up to 165 PLN/h 📅 Project duration: August 2026 – January 2027 (with possible extension) 🗣 Language: English (Professional) 👥 Open positions: 2 About the Project For our international client from the banking sector , we are looking for an experienced Senior / Expert Java Integration Developer to join a growing engineering team responsible for developing and modernising backend integration components supporting Safekeeping and Corporate Actions platforms. The project is undergoing significant expansion as part of a long-term strategic transformation, including migration of business processes and increased transaction volumes. You will participate in redesigning existing integrations, building modern Java microservices, and integrating critical banking systems. You'll join an experienced Scrum team working in a collaborative international environment with architects, analysts, QA engineers, and infrastructure specialists. Your Responsibilities Design, develop and maintain Java-based backend applications and integration services Develop modern microservices using Spring Boot Build and enhance integrations between banking systems using REST APIs, Kafka and IBM MQ Participate in application architecture improvements and legacy modernization Analyze business requirements, technical documentation and system dependencies Support deployment planning and production issue investigation Develop automated unit and integration tests Participate in code reviews and promote engineering best practices Collaborate with international Agile/Scrum teams Must Have 5+ years of commercial experience in Java backend development (10+ years for Expert level) Strong knowledge of Java and Spring Boot Experience with Spring Integration Practical experience with REST APIs and microservices Strong SQL skills and experience with relational databases (Oracle preferred) Experience with Kafka and/or IBM MQ Maven, Git and CI/CD pipelines JUnit and Testcontainers Experience analyzing production issues, logs, integrations and system flows Professional level English Nice to Have Banking or capital markets experience Experience with custody, settlement or corporate actions platforms Kubernetes and containerized applications Cloud-native application design Test automation and static code analysis Experience with AI-assisted development tools Experience building applications integrated with Kafka What We Offer International banking project Modern technology stack and large-scale enterprise systems Opportunity to influence architecture and modernization initiatives International Scrum environment Competitive B2B rate Stable cooperation with the possibility of project extension Hybrid work model (Warsaw or Gdańsk)

🏢 Summary: Senior Tech Lead / Java Developer role focused on building and optimizing ultra-low latency, high-throughput trading systems within a global investment firm’s core trading infrastructure team. The position involves architecting and scaling distributed backend platforms, driving end-to-end technical initiatives, and leading engineering standards in a mission-critical environment. Ideal for an expert in concurrent Java systems who thrives on performance tuning and complex system design. 🗂️ Requirements: 10+ years commercial experience in Java backend development, Proven experience building ultra-low latency, high-throughput systems, Advanced knowledge of concurrency and multithreading, Practical experience with lock-free data structures, Deep understanding of distributed systems architecture, Experience leading large-scale, complex engineering projects, Hands-on experience with AI-assisted coding tools, Ability to work in high-stakes financial environments 📃 Skills: Java, Multithreading, Concurrency, DistributedSystems, LockFreeDataStructures, AI, Backend, PerformanceTuning 🏢 Description: Our client is a top-tier global investment firm . We are currently looking for an exceptional Tech Lead / Senior Developer to join their Core Trading Infrastructure group. This team is responsible for engineering the ultra-low latency platforms that drive the firm's global trading operations. You will be working on highly concurrent, distributed systems where processing large volumes of data within microseconds is an absolute necessity. We are searching for a hands-on technical expert who loves solving hard engineering puzzles, scaling systems, and taking full ownership of critical platforms from design to deployment. Tech Stack: Java (Expert) Multithreading / Concurrency (Expert) Distributed Systems (Advanced) AI Dev Tools (Regular) 🚀 What you will do: Architect & Develop: Build and maintain critical, highly robust trading algorithms and distributed backend components. End-to-End Delivery: Drive major technical initiatives from the initial whiteboard phase all the way to production rollout and maintenance. Technical Leadership: Act as a technical authority within the group. Guide architectural decisions, enforce high engineering standards, and conduct rigorous code reviews. Performance Tuning: Continuously profile and optimize systems to shave off microseconds, maximizing throughput and ensuring bulletproof stability. Cross-functional Collaboration: Work closely with research analysts, portfolio managers, and trading desks to translate complex business needs into scalable technical solutions. System Evolution: Proactively identify bottlenecks and areas for modernization within the existing infrastructure. 🎯 What we expect from you: 10+ years of commercial experience designing and building ultra-low latency, high-throughput backend systems in Java . Advanced knowledge of concurrency, multithreading , and practical implementation of lock-free data structures . Deep understanding of distributed systems architecture and how to scale platforms reliably. Proven history of leading large-scale, complex engineering projects. Strong mentoring skills with a passion for elevating the technical abilities of the engineers around you. Resilience and adaptability in a fast-paced, high-stakes financial environment. Hands-on experience with modern AI-assisted coding tools (for generation, planning, or testing). 💡 Why this opportunity? This is a chance to tackle some of the most demanding engineering challenges in the financial sector. You will be joining an elite group of technologists where your code directly impacts the bottom line, operating in an environment that heavily invests in modern tech and outstanding talent.