Senior Java Engineer (FXO)

🏢 Summary: Senior Software Engineer role focused on building and enhancing high-performance FX Options trading and risk management systems within a global investment banking environment. The position involves designing, developing, and supporting low-latency, distributed Java-based solutions for front-office pricing, trading automation, and derivatives processing. The engineer works in an agile, globally distributed team to deliver scalable, mission-critical e-trading platforms. 🗂️ Requirements: Minimum 5 years of relevant software development experience, Strong server-side Java development, Experience with multi-threaded programming, Experience building high-performance and low-latency systems, Experience designing distributed systems, Ability to develop reusable and maintainable OOP or functional code, Experience with BDD or TDD practices, Knowledge of middleware messaging systems, Understanding of e-trading workflows and derivatives, Experience in enterprise or financial systems environments 📃 Skills: Java, JVM, Multithreading, DistributedSystems, LowLatency, OOP, FunctionalProgramming, BDD, TDD, Solace, JMS, ETRading, Derivatives, Agile 🏢 Description: Senior Software Engineer (FX Options) Some careers shine brighter than others. If you’re looking for a career that will help you stand out, join HSBC, and fulfil your potential. Whether you want a career that could take you to the top, or simply take you in an exciting new direction, HSBC offers opportunities, support and rewards that will take you further. Your career opportunity We’re FX Options IT Poland, a technology department providing technology services and solutions for the Investment Bank businesses at HSBC. Systems we create enable transactions across multiple asset classes. Our teams work in partnership with the business counterparts to deliver high-throughput systems, from low latency trading applications to primary trading platforms. We manage our own architecture and build out our preferred solutions. FX Options IT has a proven track record of delivering critical front office pricing, trade lifecycle and risk management trading solutions.  The team covers all the aspects of FX Options pricing and risk management trading solutions.  A successful candidate will be working with a global team, that is spread over UK, Poland, Canada, and Guangzhou, to build a multi-tier, high availability system that covers a large range of derivative products and structures. We are looking for an experienced Senior Java developer who will join our FX Options team in Krakow, Poland. What you’ll do Gather requirements, design, develop, and test robust Java solutions; implement and provide second-line support for production systems. Deliver business objectives through agile methodologies, demonstrating ownership of mission-critical systems. Develop and deploy high-performance JVM-based systems, expanding trading to new venues and desks as needed. Collaborate with business stakeholders to deliver new pricing and hedging functionality across multiple regions. Drive trading automation and participate in end-to-end architecture, design, and development activities, challenging the status quo for greater efficiency. Enhance testing and backtesting capabilities to reduce defects and accelerate strategy development. Build tools that integrate seamlessly with trading platforms and quantitative analytical tools, improving operational efficiency and decision-making. Conduct research in technology and business processes to ensure adoption of best practices and support business delivery. What you need to have to succeed in this role Minimum 5 years’ relevant experience, with a strong track record of agile delivery and success in enterprise environments. Strong Java server-side development skills, including multi-threaded programming. Proven experience designing and implementing high-performance, low-latency, and distributed systems. Ability to deliver reusable, maintainable object-oriented or functional programming solutions. Familiarity with BDD/TDD practices and middleware technologies such as Solace/JMS is desirable. Excellent attention to detail and the ability to communicate effectively with both technical and non-technical stakeholders. Self-motivated, organised, and capable of independent problem-solving. Solid understanding of e-trading workflows, derivatives, and trading desk operations in large financial institutions.

🏢 Summary: Development of high-performance distributed trading systems in Java, focusing on scalability, latency optimization, and core platform components. The role involves system design, performance tuning, and close collaboration with trading and risk stakeholders in fast-paced financial environments. 🗂️ Requirements: 5+ years of experience developing financial systems in Java, Strong expertise in concurrency, Strong expertise in multi-threaded programming, Experience with distributed systems, Experience designing high-performance systems 📃 Skills: Java, Concurrency, Multithreading, DistributedSystems 🏢 Description: Senior Java Developer - financial systems We are looking for a Software Engineer to support the development of high-performance trading systems operating in distributed environments. The role involves contributing to system design, improving performance and scalability, and collaborating closely with both engineering and business teams. Responsibilities Design and build core components of distributed trading platforms Review code and architecture to ensure quality and performance Identify and resolve scalability, stability, and latency issues Work with trading, risk, and portfolio management stakeholders Requirements 5+ years of experience developing financial systems in Java Strong expertise in concurrency and multi-threaded programming Experience with distributed systems Strong communication skills and ability to work in fast-paced environments

🏢 Summary: Hybrid Kraków-based opportunity to develop and enhance a primary Cash FX trading system within a global investment banking environment. The role focuses on building low-latency, microservice-based Java solutions that support core forex trading functionalities and ensure high availability in production. You will work in an international team delivering scalable, resilient systems with automated testing and deployment practices. 🗂️ Requirements: Minimum 5 years of software development experience, Strong proficiency in Java 17+, Experience with concurrency, data structures, low-latency programming, Experience with TDD and automated testing, Experience with continuous integration and continuous deployment, Familiarity with REST services, Familiarity with messaging technologies, Understanding of DevOps practices and tools, Good command of English, Legal right to work in the European Union 📃 Skills: Java, Concurrency, DataStructures, LowLatency, Lambdas, TDD, JUnit, CI, CD, REST, Messaging, DevOps, Microservices 🏢 Description: Empower innovation in finance — develop cutting-edge Forex trading systems that redefine global markets! Kraków-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Java Developer – Forex Trading Systems , you will be working for our client, a leading global investment bank's division dedicated to Market Securities & Services. You will contribute to the development of HSBC’s groundbreaking Cash FX primary trading system, shaping the future of foreign exchange trading through innovative, efficient, and stable software solutions. Join a talented international team and help build the backbone of a dynamic financial ecosystem—driving digital transformation and industry-leading performance. Your main responsibilities: Create usable, efficient, and elegant Java code to support core trading functionalities. Build a micro-service based architecture for scalable, resilient systems. Monitor production environments to ensure stability and high availability. Support foreign exchange business requirements with robust technical solutions. Automate testing and deployment for small, frequent releases to accelerate delivery. Communicate effectively with product owners and business stakeholders to clarify features and requirements. Take ownership of the production availability and performance of your services. You're ideal for this role if you have: Minimum of 5 years of experience in software development, preferably within finance or trading systems. Strong proficiency in Java 17+ (Concurrency, data structures, lock-free, wait-free code, low latency, lambdas). Experience with TDD, continuous integration, jUnit, continuous deployment, and testing. Familiarity with REST and messaging technologies. Understanding of DevOps practices and toolsets. Ability to use AI Coding Assistants to optimize development. Excellent communication skills and a collaborative team mindset. Problem-solving attitude with flexibility and adaptability to changing environments. It is a strong plus if you have: Knowledge of FX trading or financial markets. Passion for software development outside of work, such as open source contributions or involvement in working groups. Language Required for the role: Good command of English (Communicative proficiency). Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Java Developer role focused on building and evolving a high-performance FX trading platform within a global banking environment. The position involves developing microservices-based solutions for pricing, booking, routing, and risk management while ensuring low-latency and high availability. You will contribute to continuous delivery and production stability in a large-scale, distributed system. 🗂️ Requirements: 5+ years of Java development experience, Strong proficiency in Java 17+, Experience with concurrency and low-latency programming, Hands-on experience with TDD, Experience with continuous integration and continuous deployment, Experience with JUnit, Familiarity with REST services, Experience with messaging technologies, Understanding of DevOps practices, Experience building microservices architecture, Fluent English, Legal right to work in the EU 📃 Skills: Java, Java17, Concurrency, Lambdas, TDD, JUnit, CI, CD, REST, Messaging, DevOps, Microservices, FX, Low-latency 🏢 Description: Unleash innovation in financial technology — lead the development of a groundbreaking FX trading platform! Krakow-based opportunity with hybrid work model. As a Senior Java Developer — you will be working for our client, a leading global bank’s Corporate & Institutional Banking division. You will contribute to River, HSBC's flagship Cash FX primary trading system, supporting vital FX functions like pricing, booking, routing, risk management, and valuations. Join an international team of 170 experts across multiple continents and help shape the future of financial trading technology. Your main responsibilities: Create usable, efficient, and elegant Java code to support system features Build a micro-service based architecture to ensure modularity and scalability Monitor production environments to maintain system stability Handle Foreign Exchange business requirements with technical expertise Develop and automate testing and deployment for small, frequent releases Collaborate with product owners and business teams to deliver robust features Ensure continuous production availability and high-performance service operation You're ideal for this role if you have: At least 5 years of experience in Java development, ideally in financial systems Strong proficiency with Java 17+ (Concurrency, data structures, lock-free, wait-free code, low latency, lambdas) Hands-on experience with TDD, continuous integration, jUnit, and continuous deployment Familiarity with REST and messaging technologies Good understanding of DevOps practices Ability to collaborate effectively with technical and business teams Passion for problem-solving and learning new technologies It is a strong plus if you have: (optional) FX business knowledge (technical skills are the main focus) Passion for software development outside of work through open source projects or involvement in working groups Language Required for the role: Fluent English (spoken and written) Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Java Software Engineer role focused on building and enhancing Front Office trading systems for Credit and IR derivatives in a hybrid Krakow-based environment. The position involves developing high-availability Java microservices, supporting real-time risk management, and improving DevOps and trading infrastructure. Candidates will collaborate with engineering and IT teams to deliver scalable trading technology solutions. 🗂️ Requirements: 7+ years of Java back-end development experience, Experience with RESTful APIs and microservices, Experience in high-availability service architecture, Strong SQL skills, Knowledge of PostgreSQL or Sybase, Hands-on experience with AI tooling and models, Experience delivering Java-based services or modules, Fluent English, Legal right to work in the European Union 📃 Skills: Java, REST, Microservices, SQL, PostgreSQL, Sybase, DevOps, CI/CD, Agile, AI 🏢 Description: Unleash innovation in trading technology — shape the future of Credit and IR derivatives! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Java Software Engineer , you will be working for our client, a global leader in foreign exchange markets. The Commodities IT team develops cutting-edge Front Office applications to support commodities trading, leveraging agile methodologies and advanced market technology. This senior role is part of the Credit VS – Qilin team, focusing on creating and enhancing trading systems for Credit and IR derivatives, enabling real-time risk management and operational excellence. Your main responsibilities: Build high-end solutions using market-leading technology stacks across trading workflows Act as Application Specialist for front-to-back systems related to Credit derivatives and IR derivatives trading Propose and implement sustainable tooling infrastructure, including DevOps, release management, resiliency, and monitoring Contribute to the evolution of existing tech stacks and improvement of processes Engage in design review forums, representing application architecture and innovations Collaborate with IT management and engineering teams to enable effective trading workflows and risk controls You're ideal for this role if you have: 7+ years of experience in Java back-end development, with expertise in RESTful APIs and microservices Proven experience in high-availability service architecture Strong skills in SQL and practical knowledge of databases like PostgreSQL or Sybase Hands-on experience with AI tooling and models in day-to-day tasks Experience leading the delivery of Java-based services or modules Excellent communication skills in English, including meetings and presentations Strong analytical thinking and problem-solving capabilities A fast learner with curiosity and a passion for new technologies Ability to perform calmly under pressure A team-oriented mindset It is a strong plus if you have: Production support experience Knowledge of Agile development, CI/CD processes Domain expertise in banking or financial markets Language Required for the role: Fluent English Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Java Backend Engineer role focused on building and enhancing Front Office trading and risk management systems for FX and Commodities markets. The position involves developing low-latency, high-availability backend services and real-time risk capabilities within a global trading environment. The offer includes hybrid work in Krakow and the opportunity to work on high-impact financial systems. 🗂️ Requirements: 5+ years of Java backend development experience in financial services, Proficiency in HTTPS, RESTful API, microservices, and MQ, Understanding of high-availability service architecture, Experience with SQL and PostgreSQL or Sybase, including performance tuning, Experience delivering or leading Java-based services or modules, Fluent English communication skills, Legal right to work in the European Union 📃 Skills: Java, HTTPS, REST, Microservices, MQ, SQL, PostgreSQL, Sybase, CI/CD, Agile 🏢 Description: Unleash innovation at the forefront of trading technology — shape the future of risk management! Krakow-based opportunity with hybrid work model. As a Senior Java Backend Engineer – Trading and Risk Management , you will be working for our client, a leading financial institution specializing in foreign exchange and commodities trading. You’ll contribute to developing high-impact Front Office applications that support and expand institutional trading operations across global markets. Join us to drive technological excellence and elevate trading solutions in a dynamic, fast-paced environment. Your main responsibilities: Develop and support front-to-back trading exchanges, client portals, and end-to-end trade lifecycles. Build high-end solutions using market-leading technologies across the trading stack. Deliver cross-product Front Office systems for trading and risk management in FX and Commodities. Maintain and enhance electronic trading applications optimized for low latency and high throughput. Enable real-time risk management capabilities for FX and Commodities trading workflows. You're ideal for this role if you have: 5+ years of experience in Java back-end development in financial services. Proficiency with HTTPS, RESTful API, micro-services, and MQ. Solid understanding of high-availability service architecture. Experience with SQL and at least one main-stream database (PostgreSQL or Sybase), including basic performance tuning. Proven ability to own or lead the delivery of Java-based services or modules. Excellent communication skills in English, capable of discussing complex ideas efficiently. Strong analytical and problem-solving skills. Passionate about technology, with a curiosity to stay updated and deepen expertise. Ability to perform under pressure with calmness in urgent situations. A collaborative team player mindset. It is a strong plus if you have: (optional) Experience in production support. Knowledge of agile development, CI/CD practices. Language Required for the role: Fluent in English, with excellent communication skills. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Java Developer role focused on 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: Oferta dotyczy roli Senior Backend Engineer odpowiedzialnej za rozwój wysokowydajnej platformy inwestycyjnej i tradingowej obsługującej miliony użytkowników. Stanowisko obejmuje projektowanie architektury mikroserwisowej, rozwój backendu w Java i Go oraz optymalizację systemów działających pod dużym obciążeniem. Kandydat będzie współpracować z zespołami Product, DevOps i Engineering oraz uczestniczyć w decyzjach architektonicznych i mentoringu. 🗂️ Requirements: 8-12 lat doświadczenia w programowaniu backendowym, Bardzo dobra znajomość Java, Bardzo dobra znajomość Golang, Doświadczenie z JVM, Doświadczenie w projektowaniu systemów high scale i high throughput, Bardzo dobra znajomość architektury mikroserwisowej, Doświadczenie z REST API, Doświadczenie z integracjami systemowymi, Znajomość MongoDB, Znajomość PostgreSQL, Znajomość MySQL, Znajomość indeksowania, cachingu i optymalizacji wydajności, Znajomość Linux, Znajomość podstaw sieci i komunikacji między komponentami, Umiejętność analizy logów i troubleshootingu, Doświadczenie w branży finansowej lub fintech, Znajomość języka angielskiego na poziomie B2 📃 Skills: Java, Golang, JVM, REST, MongoDB, PostgreSQL, MySQL, Linux, Microservices, API, Caching, Networking, AWS, GCP, Azure, Oracle, CI/CD, DevOps 🏢 Description: Dołącz do jednej z najszybciej rozwijających się firm technologicznych z sektora finansowego, która tworzy nowoczesną platformę inwestycyjną i tradingową wykorzystywaną przez użytkowników na całym świecie. To organizacja stawiająca na wysoką jakość inżynierii, skalowalność oraz nowoczesną architekturę. Produkty obsługują miliony użytkowników, bardzo duży ruch i wymagają rozwiązań zapewniających wysoką dostępność oraz wydajność. Twoja rola Jako Senior Backend Engineer będziesz odpowiadać za projektowanie i rozwój kluczowych komponentów platformy oraz współtworzenie architektury systemów działających pod dużym obciążeniem. Do Twoich obowiązków będzie należeć: projektowanie, rozwój i utrzymanie backendu w Java i Go, tworzenie oraz rozwój architektury mikroserwisowej, projektowanie i rozwój wydajnych API oraz integracji z systemami wewnętrznymi i zewnętrznymi, optymalizacja wydajności aplikacji oraz rozwiązywanie problemów produkcyjnych, analiza logów, diagnostyka i troubleshooting złożonych problemów, współpraca z zespołami Product, DevOps oraz Engineering przy dostarczaniu nowych funkcjonalności, udział w code review oraz dbanie o wysoką jakość kodu, mentoring mniej doświadczonych programistów, udział w podejmowaniu decyzji architektonicznych i rozwoju platformy. Szukamy osoby, która posiada 8-12 lat doświadczenia w programowaniu backendowym, bardzo dobrą znajomość Java i Golang, praktyczne doświadczenie z JVM, doświadczenie w projektowaniu i rozwijaniu systemów o wysokiej dostępności oraz dużym ruchu (high scale, high throughput), bardzo dobrą znajomość architektury mikroserwisowej, doświadczenie z REST API oraz integracjami systemowymi, praktyczną znajomość baz danych (MongoDB, PostgreSQL, MySQL), w tym indeksowania, cachingu i optymalizacji wydajności, dobrą znajomość systemu Linux oraz podstaw działania sieci i komunikacji między komponentami aplikacji, umiejętność diagnozowania problemów, analizy logów oraz proponowania usprawnień technicznych, doświadczenie w branży finansowej lub fintech, znajomość języka angielskiego na poziomie min. B2. Mile widziane doświadczenie z rozwiązaniami DevOps oraz CI/CD, znajomość chmur publicznych (AWS, GCP lub Azure), doświadczenie z Oracle Cloud, znajomość wzorców architektonicznych, doświadczenie w obszarze tradingu, giełdy, kryptowalut lub High-Frequency Trading (HFT), wykształcenie techniczne, znajomość języka arabskiego.

🏢 Summary: Senior Java Core Developer role focused on building and maintaining robust server-side solutions for FX trading systems across the full software development lifecycle. The position involves designing scalable distributed systems, resolving production issues, and improving both modern and legacy applications in a collaborative environment. 🗂️ Requirements: 5+ years of Java server-side development experience, Multi-threaded programming experience, Experience designing scalable distributed systems, Knowledge of Kafka, Knowledge of Tibco, Experience with Spring, Experience with Spring Boot, Knowledge of reactive programming, Familiarity with Azure, Experience with Docker, Understanding of DevOps practices, Basic Linux skills, Fluent English 📃 Skills: Java, Kafka, Tibco, Spring, SpringBoot, Azure, Docker, DevOps, Linux 🏢 Description: We are seeking a Senior Java Core Developer to join our FX trading team, responsible for designing robust server-side solutions and driving problem-solving across the full software development lifecycle Responsibilities Take ownership of software design and problem-solving within the FX trading area Participate in the entire Software Development Life Cycle including requirements gathering, design, development, testing and rollout Deliver Level 3 support and resolve production issues Apply modern best practices to new projects while enhancing legacy code bases Work independently and collaboratively as part of a team Contribute to the ongoing improvement of existing systems and processes Requirements 5+ years of experience in Java server-side development including multi-threaded programming Experience in designing and building robust and scalable distributed systems in an enterprise environment Knowledge of messaging and middleware technologies such as Kafka and Tibco EMS Knowledge of frameworks including Spring and Spring Boot and reactive programming paradigms Familiarity with Cloud/Azure, Docker and DevOps Basic skills in Linux Fluent English Nice to have Background in FX domain knowledge 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 Developer role focused on building and enhancing high‑performance, low‑latency front‑office trading systems for Commodities and FX markets. The position involves developing real‑time, front‑to‑back trading platforms covering pricing, execution, and risk management. Work includes delivering reliable, high‑throughput Java services within a global trading environment. 🗂️ Requirements: 5+ years of Java back-end development experience, Strong knowledge of HTTPS and REST APIs, Experience with microservices architecture, Experience with MQ systems, Proficiency in SQL, Experience with Postgres or Sybase, Understanding of high-availability architectures, Experience building low-latency, high-throughput systems, Experience delivering Java-based services 📃 Skills: Java, REST, HTTPS, Microservices, MQ, SQL, Postgres, Sybase, CI/CD, Agile, FX, Commodities 🏢 Description: Senior Java Developer– Commodities Trading B2B | Hybrid | Kraków | 2 days per week | Global Investment Bank We are supporting a global financial institution in hiring an experienced Senior Java Engineer for its Commodities technology team. The role focuses on building and improving front‑office trading systems used across global markets, with an emphasis on performance, reliability, and real‑time processing. Role Overview Develop and support front‑to‑back trading systems, including exchanges, client portals, and trade lifecycle components Build high‑performance Java services used across Commodities and FX trading Enhance and maintain low‑latency, high‑throughput electronic trading applications Deliver cross‑product front‑office platforms for pricing, execution, and risk management Contribute to real‑time risk capabilities across global trading workflows Required Experience 5+ years’ experience in Java back‑end development Strong knowledge of HTTPS, REST APIs, microservices, and MQ Proficiency in SQL and experience with Postgres or Sybase Understanding of high‑availability service architecture Experience owning or leading the delivery of Java‑based services Strong communication skills and ability to work with global teams Analytical approach, fast learner, and proactive in keeping technical skills current Ability to remain calm and effective in time‑sensitive situations Preferred Experience Exposure to production support Experience with Agile, CI/CD environments Domain knowledge in trade lifecycle, post‑trade, or FX/Commodities