Senior Java Developer

🏢 Summary: Java Developer role focused on building and improving mission-critical financial systems using Java and the ION toolset in a fast-paced international environment. The position involves low-latency application development, stakeholder collaboration, production support, and integration with trading platforms and messaging systems. Hybrid work with 3 office days per week is expected. 🗂️ Requirements: 2+ years of software engineering experience, Professional Java development experience, Experience with low-latency programming, Experience with multi-threaded systems, Knowledge of object-oriented programming, Understanding of design patterns, Experience working in agile teams, Knowledge of Rates and Credit bonds and derivatives, Understanding of Bloomberg and TradeWeb platforms, Experience with Kafka, English proficiency at B2 level or higher 📃 Skills: Java, ION, Kafka, OOP, Agile, Bloomberg, TradeWeb, Python, Perl, PXE 🏢 Description: We are seeking a Java Developer to become a valued addition to our team. You will join a talented engineering community that delivers mission-critical solutions powering our worldwide business operations and fostering innovation within the financial sector. This role offers a great chance to leverage your skills in a fast-paced setting, partnering with international peers and stakeholders on meaningful initiatives. 3 days per week in our office is expected. Responsibilities Architect and implement solutions to tackle major business challenges, whether through Java application development or by making use of the ION toolset Improve and restructure existing components and solutions to boost performance, maintainability, and overall code quality Drive UAT and demonstration sessions with key stakeholders, facilitating clear communication and achieving successful approvals Extract critical information from business stakeholders and convert it into well-defined, actionable IT requirements Work closely with other IT teams across the globe to provide cohesive, end-to-end solutions Assist the production operations team during deployments and contribute to ongoing production support tasks Requirements A minimum of 2 years of professional experience in software engineering roles Strong practical background in Java for the creation of reliable server-side applications Sound grasp of low-latency and multi-threaded programming for performance-critical systems Deep familiarity with object-oriented programming concepts and design patterns, with exposure to functional programming viewed as a significant advantage Demonstrated experience operating within agile teams and applying agile practices Strong comprehension of Rates and Credit bonds and derivatives, together with their underlying market behavior Thorough understanding of the specific characteristics of trading venues like Bloomberg and TradeWeb Practical experience using Kafka for messaging and event-driven communication Outstanding verbal and written communication abilities in English (B2+ level or above) Nice to have General awareness of Financial Market Instruments and how they are utilized in trading contexts Advanced, expert-level proficiency with ION and substantial prior experience using the ION toolset Previous involvement in bond pricing through PXE Background in automated testing methods and continuous integration workflows Working knowledge of scripting languages such as Python, Perl, or comparable alternatives EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.

🏢 Summary: Senior Java Developer role focused on building and evolving a globally distributed trading platform for fixed income products. The position involves designing and implementing high-quality software components, supporting platform optimization and migration, and collaborating with international IT teams. It requires strong expertise in Core Java, Spring, and SQL within enterprise-level systems. 🗂️ Requirements: At least 5 years of experience in software development, Strong knowledge of Core Java, Proficiency in SQL, Proficiency in Spring framework, Strong written and verbal English, Ability to work collaboratively in a global team environment 📃 Skills: Java, SQL, Spring, JMS, ORM, REST, WebServices, TCP/IP, Bash, Perl, Python, C++, Redis, Multithreading, Networking, Scrum, Kanban 🏢 Description: We are seeking a Senior Java Developer to join a leader in the financial domain who has been successfully involved in trading financial (Fixed income) products for many years. As part of this, a globally distributed, component-based IT system has been built. It is written mainly in Java and incorporates many enterprise technologies/standards (e.g., JMS, ORM, Spring, WebServices, REST), but also integrates other technologies, like TCP/IP networking, bash scripting, Perl, Python or even C++. Responsibilities Design and implement software components according to requirements Take responsibility for ensuring the delivery and quality standards of software Spend time with the customer to determine and understand deliverables Support business in platform rationalization and optimization Continue removing technical debt and platform standardization Support business in migration to strategic platform Work with other IT teams across the globe Requirements At least 5 years of working experience in software development Strong knowledge of Core Java Proficiency in SQL and Spring framework Good communication and time management skills Team player mentality with a pragmatic approach to software development Strong written and verbal English Nice to have Skills in multithreading, networking and web services in Java Familiarity with JMS and Redis Capability to acquire and capture requirements with attention to software quality Understanding of investment banking domain Understanding of Agile principles (experience in Scrum or Kanban) We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment 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) 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

🏢 Summary: Senior Java Developer role focused on building and optimizing enterprise trading systems in the financial domain using Java and related enterprise technologies. The position involves designing software components, improving platform standardization, supporting migration initiatives, and collaborating with global IT teams. Candidates should have strong Core Java, SQL, and Spring expertise with experience in enterprise-scale software development. 🗂️ Requirements: 5+ years of software development experience, Strong Core Java knowledge, Proficiency in SQL, Experience with Spring, Strong written and verbal English, Good communication skills, Time management skills, Team-oriented approach 📃 Skills: Java, SQL, Spring, JMS, ORM, REST, WebServices, TCP/IP, Bash, Perl, Python, C++, Redis, Scrum, Kanban 🏢 Description: We are seeking a Senior Java Developer to join a leader in the financial domain who has been successfully involved in trading financial (Fixed income) products for many years. As part of this, a globally distributed, component-based IT system has been built. It is written mainly in Java and incorporates many enterprise technologies/standards (e.g., JMS, ORM, Spring, WebServices, REST), but also integrates other technologies, like TCP/IP networking, bash scripting, Perl, Python or even C++. Responsibilities Design and implement software components according to requirements Take responsibility for ensuring the delivery and quality standards of software Spend time with the customer to determine and understand deliverables Support business in platform rationalization and optimization Continue removing technical debt and platform standardization Support business in migration to strategic platform Work with other IT teams across the globe Requirements At least 5 years of working experience in software development Strong knowledge of Core Java Proficiency in SQL and Spring framework Good communication and time management skills Team player mentality with a pragmatic approach to software development Strong written and verbal English Nice to have Skills in multithreading, networking and web services in Java Familiarity with JMS and Redis Capability to acquire and capture requirements with attention to software quality Understanding of investment banking domain Understanding of Agile principles (experience in Scrum or Kanban) 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 developing, maintaining, and modernizing employee-facing platforms in a complex enterprise environment within the financial sector. The position involves working with both modern and legacy technologies, operational support, troubleshooting, and ensuring platform stability for approximately 9,000 daily users. 🗂️ Requirements: 5+ years of Java development experience, Experience in complex enterprise environments, Ability to work with modern and legacy solutions, Collaborative mindset, Pragmatic approach to problem solving 📃 Skills: Java, WebSphere, Tomcat, JBoss 🏢 Description: On behalf of a client in the financial sector, we are looking for a Senior Java Developer. The consultant will join the team responsible for developing and maintaining employee-facing platforms. The team comprises software developers, a Product Owner, an IT architect, and a manager, collectively supporting approximately 9,000 employees. The application landscape includes modern and legacy technologies, ensuring a robust platform used daily. Main Responsibilities: Contribute to the development, maintenance, and operation of the team’s solutions Learn and understand the domain, architecture, and surrounding integrations Participate in operational activities, including monitoring, patching, and ensuring high availability Support troubleshooting, analysis, and technical improvements Help simplify and modernize existing solutions Contribute to knowledge sharing and long-term continuity Help ensure a stable and reliable platform used daily by approximately 9,000 employees Key Requirements: Strong Java development competencies (5+ years of experience) Experience in complex enterprise environments Ability to navigate both modern and legacy solutions. Pragmatic and collaborative mindset Nice to Have: Experience with enterprise application platforms such as WebSphere, Tomcat, JBoss, or similar technologies is considered an advantage, as large parts of the application landscape rely on WebSphere-based solutions.

🏢 Summary: Senior Java Developer role focused on designing and delivering high-quality, scalable solutions for the securities industry within an international, agile environment. The position involves active participation in technical decision-making, cross-team collaboration, and maintaining robust enterprise-grade applications. Hybrid work model with up to four remote days per week. 🗂️ Requirements: Minimum 4 years of experience in Java development in enterprise environments, Strong knowledge of Java core technologies and frameworks, Experience working in cross-functional and international teams, Familiarity with Agile methodologies, Familiarity with DevOps practices, Fluent Polish and English, Legal right to work in the European Union 📃 Skills: Java, Agile, DevOps 🏢 Description: Unleash innovation in fintech — craft transformative solutions for the securities industry. Warszawa or Kraków-based opportunity with a hybrid work model (up to 4 remote days per week). As a Senior Java Developer working for our client, you will be a vital part of the TA IT team within the Securities Services cluster, focusing on delivering cutting-edge solutions for operational teams. You will be actively involved in technical discussions, decision-making processes, and collaborating with cross-location squads to ensure the robustness, quality, and sustainability of our applications. This role offers a unique chance to work in a dynamic, international environment, fostering growth and technical excellence. Your main responsibilities: Design, develop, and maintain high-quality Java applications aligned with business needs. Participate in technical discussions to drive innovative solutions and best practices. Collaborate with Business Analysts, Developers, and other stakeholders across locations to ensure project continuity. Contribute to code reviews, testing, and deploying scalable software as part of agile squads. Troubleshoot and resolve complex technical issues, providing quick and effective solutions. Document technical specifications and ensure adherence to compliance and security standards. Stay updated with the latest industry trends and incorporate new technologies into the development lifecycle. You're ideal for this role if you have: Minimum 4 years of experience in Java development within enterprise environments. Strong knowledge of Java core technologies and frameworks. Experience working with cross-functional and international teams. Excellent communication skills in Polish and English, with fluent command of both languages. Familiarity with Agile methodologies and DevOps practices. Ability to adapt quickly to changing project requirements and priorities. Strong problem-solving skills and attention to detail. It is a strong plus if you have: (optional) Experience working on financial or securities-related projects. Knowledge of additional programming languages or frameworks. Certifications related to Java development or agile methodologies. Language Required for the role: Polish: Fluent English: Fluent Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. We offer you At ITDS , you will work on innovative and impactful technology projects for international companies across multiple industries in Europe and beyond. We create an environment for ambitious, driven professionals who want to grow, deliver value, and build their careers in modern IT and digital transformation. Our offer includes: Stable and long-term cooperation with attractive conditions Opportunities to develop your technical expertise across various industries and technologies The chance to work on high-impact, strategic IT and digital transformation projects A clear career path and the opportunity to grow quickly by contributing to diverse client initiatives over time International environment , knowledge sharing, social events, and training opportunities Access to an attractive medical package Access to the Multisport program Access to learning platforms such as Pluralsight Flexible working hours and remote work options #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. # 8769

🏢 Summary: Senior Java Developer role focused on building and enhancing high-performance applications for Fixed Income Rates and Credit trading desks, with a hybrid work model in Krakow. The position involves designing scalable Java solutions, optimizing low-latency systems, and collaborating with global teams to deliver and maintain complex trading platforms. The offer includes career development programs, certifications, and a comprehensive benefits package. 🗂️ Requirements: 5+ years of professional Java development experience, Experience with low-latency programming, Experience with multi-threaded programming, Strong problem-solving and analytical skills, Ability to communicate technical concepts to non-technical stakeholders, English proficiency at B2 level or higher, Availability to work from the Krakow office 3 days per week 📃 Skills: Java, Multithreading, Low-latency, Kafka, AVRO, Azure, AWS, GCP, Bloomberg, Tradeweb 🏢 Description: We are looking for an enthusiastic Senior Java Developer to build innovative applications for Fixed Income Rates and Credit trading desks. As a member of our global Fixed Income Rates and Credit markets technology team—a dynamic, driven group operating across 8 cities in 6 countries—you will provide high-performance solutions while preserving existing functionality. Please be aware that this role requires working from the Krakow office 3 days per week. Responsibilities Design and build scalable Java applications to address complex business challenges Enhance and refactor existing components to boost performance and maintainability Lead UAT and demonstration sessions with key stakeholders Convert business requirements into technical specifications Work alongside global IT teams to achieve seamless integration Assist with production rollouts and deliver ongoing maintenance Build cutting-edge solutions while sustaining a sophisticated, multi-faceted platform Requirements 5+ years of professional experience developing in Java Familiarity with low-latency and multi-threaded programming methods Outstanding problem-solving and analytical abilities Strong communication skills, capable of clarifying complex technical concepts for non-technical stakeholders Eagerness to learn and adjust to new technologies and market shifts English skills at B2 level or above Nice to have Comprehension of financial markets, especially Rates and Credit bonds/derivatives along with trading platforms (e.g., Bloomberg, Tradeweb) Experience with messaging systems such as Kafka and data serialization formats (e.g., AVRO) Understanding of cloud platforms (Azure, AWS or GCP) We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment 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) 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

🏢 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

🏢 Summary: Senior Java Developer role focused on building scalable, cloud-native applications for an AI-driven platform in the financial services domain. The position involves designing and implementing distributed systems, RESTful APIs, and secure integrations while collaborating with cross-functional teams. The role includes architectural leadership, code reviews, and delivering business-critical solutions using modern technologies. 🗂️ Requirements: 3+ years of software development experience, Proficiency in Java 18+, Strong experience with Spring Boot, Experience in RESTful API development using OpenAPI/Swagger, Knowledge of PostgreSQL or Oracle databases, Experience with Hibernate or JPA, Familiarity with CI/CD tools such as Jenkins or GitLab CI/CD, Hands-on experience with Azure cloud platform, Experience with monitoring tools like Prometheus or Splunk, Proficiency in testing frameworks such as JUnit, TestNG, Mockito, or JBehave, Experience with Kafka or REST integrations, Knowledge of security protocols including OAuth2, JWT, Spring Security, English proficiency at B2 level or higher 📃 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: We are seeking a Senior Java Developer to join our innovative AI platform team at a leading global investment bank. Collaborate with data scientists, software engineers, and business analysts to create advanced solutions leveraging machine learning and generative AI in a cloud-native environment. Play a pivotal role in driving digital transformation in financial services while contributing to impactful projects on a global scale. Responsibilities Design and build highly scalable and distributed cloud applications Provide technology solutions addressing business challenges in digital financial services Design and implement sustainable solutions using modern technologies Apply advanced concepts to develop business-critical solutions Implement proofs of concept and application skeletons for team collaboration Lead and participate in architecture and design reviews with peers and stakeholders Conduct code reviews and test software across SDLC phases Requirements 3+ years of experience in software development Proficiency in Java (18+) and Spring Boot Expertise in RESTful API development using OpenAPI/Swagger Knowledge of databases like PostgreSQL or Oracle and ORM frameworks such as Hibernate or JPA Familiarity with CI/CD tools including Jenkins or GitLab CI/CD Hands-on experience with Azure cloud platform Background in monitoring tools like Prometheus or Splunk Competency in testing frameworks such as JUnit, TestNG, Mockito, or JBehave Experience in messaging and integration with technologies like Kafka or REST Capability in security protocols (OAuth2, JWT, Spring Security) English proficiency at B2 level or higher Nice to have Experience in the financial services industry Certification in Azure or related cloud platforms Understanding of Agile methodologies or DevOps practices Familiarity with other programming languages or frameworks 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 and maintaining backend components and integration services for a global trading platform, including financial data processing and repo trading solutions. The position involves working in an agile, DevOps-oriented environment with cross-regional teams and requires hybrid work from Kraków or Wrocław. 🗂️ Requirements: Hands-on experience with Java, Hands-on experience with C++, Proficiency in Unix/Linux environments, Scripting skills, Knowledge of source code control tools, Experience with build tools, Strong SQL skills, Database expertise, Experience with CI/CD practices, Experience integrating messaging systems, Experience with middleware solutions, Experience working in Agile methodologies 📃 Skills: Java, C++, Unix, Linux, SQL, CI/CD, DevOps, Git, Jenkins, Messaging, Middleware 🏢 Description: We are seeking a highly experienced Senior Java Developer with expertise in C++ to join our dynamic team. You will contribute to the development of backend components, integration solutions, and services powering a global trading platform. This role encompasses financial data processing, cash and collateral management, and repo trading activities, offering the chance to work on innovative projects in a fast-paced, agile environment. This role offers a hybrid model, with 3 days per week working from the client's office in Kraków or Wrocław, Poland. Responsibilities Design, develop, and maintain backend system components and services in adherence to coding standards Collaborate with cross-regional teams to support EMEA, AMER, and APAC operations Participate in requirements analysis, functional design, and release lifecycles Integrate APIs and financial data processing solutions seamlessly Ensure robust delivery and provide support for released components Drive innovation and share best practices in software engineering Contribute to enhancing DevOps and continuous integration/delivery frameworks Requirements Hands-on experience with Java and C++ Proficiency in Unix/Linux environments and scripting Knowledge of source code control and build tools Strong SQL skills and database expertise Familiarity with engineering and DevOps practices such as continuous integration and delivery Proven capability in integrating messaging and middleware solutions Solid background in agile methodologies Excellent communication and problem-solving abilities Nice to have Background in investment banking or financial services Familiarity with financial data processing and remediation Understanding of release management processes Knowledge of global trading regulations and standards 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 and optimizing high-performance applications for Fixed Income Rates and Credit trading desks within a global financial technology team. The position involves developing scalable Java solutions, supporting production systems, and collaborating with international stakeholders and IT teams. Hybrid work from the Krakow office is required three days per week. 🗂️ Requirements: 3+ years of professional Java development experience, Knowledge of low-latency programming, Knowledge of multi-threaded programming, Strong problem-solving skills, Strong analytical skills, Ability to communicate technical concepts to non-technical stakeholders, Willingness to learn new technologies and adapt to market changes, English proficiency at B2 level or higher 📃 Skills: Java, Kafka, AVRO, Azure, AWS, GCP, Bloomberg, Tradeweb 🏢 Description: We are seeking a passionate Senior Java Developer to create innovative applications for Fixed Income Rates and Credit trading desks. You will deliver high-performance solutions while maintaining existing functionality as part of our global Fixed Income Rates and Credit markets technology team, a fast-paced, motivated group spread across 8 cities in 6 countries. Please note that working from the office in Krakow 3 days per week is required. Responsibilities - Architect and develop scalable Java applications for complex business challenges - Optimize and refactor existing components to improve performance and maintainability - Lead UAT and demonstration sessions with key stakeholders - Translation of business requirements into technical specifications - Collaboration with global IT teams to ensure seamless integration - Support production rollouts and provide ongoing maintenance - Development of cutting-edge solutions while maintaining a sophisticated, multi-faceted platform Requirements - 3+ years of professional Java development experience - Knowledge of low-latency and multi-threaded programming techniques - Excellent problem-solving and analytical skills - Strong communication skills, able to explain complex technical concepts to non-technical stakeholders - Willingness to learn and adapt to new technologies and market changes - English proficiency at B2 level or higher Nice to have - Understanding of financial markets, particularly Rates and Credit bonds/derivatives with trading platforms (e.g., Bloomberg, Tradeweb) - Familiarity with messaging systems like Kafka and data serialization formats (e.g., AVRO) - Knowledge of cloud platforms (Azure, AWS or GCP)