Senior Python Developer (+ Docker)

🏢 Summary: Backend Developer role focused on building and maintaining analytics services for pricing and valuation of financial instruments within a microservices architecture. The position involves developing backend features, integrating with frontend components, and supporting event-driven systems used by traders in a banking environment. Work includes optimizing existing solutions and collaborating within a large, distributed team. 🗂️ Requirements: Excellent knowledge of Python, Experience with FastAPI framework, Knowledge of event-driven architecture, Understanding of programming design patterns, Experience working with large codebases, Proficiency with Git version control, Unit testing skills, Knowledge of JavaScript, Knowledge of React, Understanding of software architecture and design principles 📃 Skills: Python, FastAPI, JavaScript, React, Git, Microservices, Testing, Architecture, Design-patterns, Event-driven 🏢 Description: Montrose Software supports one of the largest North American banks in enhancing and maintaining its financial libraries and applications. The bank serves over 17 million clients worldwide, employs more than 86,000 people, and offers a broad range of services including personal and commercial banking, wealth management, insurance, investor services, and capital markets products. Within this engagement, we are part of the structured rates products team, responsible for developing analytics services that support the pricing and initial valuation of financial instruments used across the bank’s systems and web-based applications. The solution is built using a microservices architecture, with communication handled via the Solace messaging system (pub/sub architecture). All microservices are deployed on the bank’s own Kubernetes cluster and are used by traders for the initial valuation of financial products before they are traded. Industry : Finance Location : Kraków / Hybrid/ Remote from Poland Your daily work will include: Develop and maintain backend functionality and integrate it with the frontend. Implement new features, optimize existing functionality, and fix bugs. Work together with other developers to deliver high-quality results Team & Collaboration > 20 people, and 7 from Montrose Regular meetings: Daily at 15:30 CET and weekly retrospective Communication : Chat, emails, ad hoc call Working hours: usually 9:00–17:00 CET Qualifications: Excellent knowledge of Python Knowledge of event-driven architecture Python FastAPI framework Good understanding of programming design pattern Large codebases, with hands on experience Ability to use Git version control system Unit testing skills Knowledge of Javascript / React Knowledge of software architecture and design principles Fluent in spoken and written English Nice to have: Familiarity with C++ Experience in a quantitative finance environment Docker / Kubernetes / ansible knowledge Experience in Linux/Windows management Perks, Snacks & Everything Nice :) Work Environment & Flexibility Top-quality equipment to support your work Flexible working hours Remote work option Exciting and challenging projects with international teams Learning & Development English lessons with a native speaker Dedicated training budget for personal and professional growth Health & Well-being Private medical insurance Multisport card Air-conditioned workspace Showers available at the office Food & Comfort Lunches from Kraków’s top restaurants delivered to the office or a refund of the budget allocated for it Fully stocked kitchen with drinks, fruit, and snacks Lifestyle & Fun No dress code- dress comfortably Chillout area with bean bags, therapy balls, PlayStation 4, Nintendo Switch 2 + games, stretching area, and pull-up bar Regular team events Additional Perks Indoor bicycle parkingm

🏢 Summary: The offer is for a backend engineer role focused on building and optimizing distributed infrastructure services for large-scale pricing and risk calculations in the financial domain. The position involves developing and maintaining C++ and Python services, supporting high-throughput and low-latency analytics, and ensuring reliability in a complex distributed system. The role includes working with containerized environments on Linux and Kubernetes, using modern CI/CD and messaging solutions. 🗂️ Requirements: Good knowledge of C++, Experience working in Linux environment, Proficiency in Python, Experience with Git, Familiarity with RESTful applications, Familiarity with containerization technologies, Familiarity with Kubernetes 📃 Skills: C++, Python, Linux, Kubernetes, Docker, Git, REST, SQL, SQLServer, Solace, Jenkins, GitHub, Jira 🏢 Description: Project description: Our team develops and evolves infrastructure services that orchestrate large-scale analytic price and risk computations across a wide range of financial instruments. These calculations are distributed over thousands of computation engines, enabling both high-throughput End-of-Day batch processing and low-latency intraday streaming analytics. The core analytic engine is implemented in C++, while the surrounding orchestration services are written in Java (legacy) and Python. We’re transitioning our environment from Windows-based virtual machines to containerized deployments on Kubernetes and Linux. Communication between services is primarily handled via Solace messaging and REST APIs. A major focus of our work is ensuring reliability and performance in a complex distributed system- including extensive debugging, monitoring, and log analysis to identify and resolve issues across multiple services and environments. Industry : Finance Location : Kraków / Hybrid/ Remote from Poland Your daily work will include: Building and optimizing services for pricing and risk calculation Designing, developing, and maintaining backend services in C++ and Python Participating in code reviews, discussing technical improvements, and sharing best practices Collaborating with developers across Poland, UK and Canada Working with SQL Server, Linux, and Solace (Pub/Sub model) Using GitHub, Jira, and Jenkins for CI/CD and task management Team & Collaboration 3 (Montrose) + 3 on the client’s side, including developers (4) and QAs (2) Regular meetings: daily standups biweekly sprint planning biweekly retrospective biweekly developer catchup call 4 short biweekly backlog refinement sessions Communication via email and Webex chat Working hours: usually 9:30–17:30 CET Qualifications: Good knowledge of C++ Linux environment Python Git Familiar with RESTful applications Familiar with containerization and Kubernetes Nice to have: Fintech experience Strong software engineering or math background Microsoft SQL use AI agents for development( ( e.g. Microsoft Copilot) Please note that the interview process is divided into four parts: Technical phone screening (~30 minutes) Technical interview (~2 hours) Non-technical call with HR team (~30 minutes) Call with client for which you will be working Perks, Snacks & Everything Nice :) Work Environment & Flexibility Top-quality equipment to support your work Flexible working hours Remote work option Exciting and challenging projects with international teams Learning & Development English lessons with a native speaker Dedicated training budget for personal and professional growth Health & Well-being Private medical insurance Multisport card Air-conditioned workspace Showers available at the office Food & Comfort Lunches from Kraków’s top restaurants delivered to the office or a refund of the budget allocated for it Fully stocked kitchen with drinks, fruit, and snacks Lifestyle & Fun No dress code — dress comfortably Chillout area with bean bags, therapy balls, PlayStation 4, Nintendo Switch 2 + games, stretching area, and pull-up bar Regular team events Additional Perks Indoor bicycle parking Wyrażam zgodę na przetwarzanie moich danych osobowych przez Montrose Software zgodnie z Polityką Prywatności . English Version: I consent to Montrose Software processing my personal data according to the Privacy Policy Zapoznałem sie z Polityka Ochrony Sygnalistów Montrose Software. English Version: I consent to the Montrose Software Whistleblower Protection Policy.

🏢 Summary: Internship offer for IT students to work on internal web and mobile projects, gaining hands-on experience under senior developer mentorship while supporting technical office tasks and website updates. 🗂️ Requirements: Student of Information Technology or related field (minimum 2nd year), Knowledge of at least one programming language, Understanding of algorithms and data structures, Very good spoken and written English, Analytical thinking skills, Willingness to learn new technologies 📃 Skills: English, Programming, Algorithms, DataStructures, Web, Mobile 🏢 Description: Montrose Software is a software consultancy based in New Jersey USA, with our primary development center in Kraków. We develop mobile apps, web applications and enterprise systems for a wide variety of clients. We are always looking for excellent programmers at all levels of experience, from students and recent graduates to professionals looking for a change. If you want to work on dynamic projects for world class clients in a fun workplace, do not hesitate to apply. Requirements: Very good in spoken and written English, You are a student of Information Technology, or similar faculty (at least 2nd year of studies), Knowledge of at least one programmatic language, Knowledge of fundamental algorithms and data structures, You would like to learn new skills/technologies, Analytical thinking. Responsibilities: Developing internal projects (~70% of the time) Developing Montrose internal project, There are several different projects using different technology stacks, mostly web or mobile Interns will be cared for by senior developers (e.g. code review, consultations) Technical assistance for the office manager (~20% of the time) Various tasks that need some technical knowledge, like preparing computers for new employees, comparing pieces of equipment that we want to buy (e.g. screens) etc Montrosesoftware.com updates (~10% of the time) Updates to our company website We’re not planning any major redesign now, rather small changes (like adding a new job offer) Perks, Snacks & Everything Nice :) Work Environment & Flexibility Top-quality equipment to support your work Flexible working hours Exciting and challenging projects with international teams Learning & Development English lessons with a native speaker Dedicated training budget for personal and professional growth Health & Well-being Private medical insurance Multisport card Air-conditioned workspace Showers available at the office Food & Comfort Lunches from Kraków’s top restaurants delivered to the office or a refund of the budget allocated for it Fully stocked kitchen with drinks, fruit, and snacks Lifestyle & Fun No dress code — dress comfortably Chillout area with bean bags, therapy balls, PlayStation 4, Nintendo Switch 2 + games, stretching area, and pull-up bar Regular team events Additional Perks Indoor bicycle parking Wyrażam zgodę na przetwarzanie moich danych osobowych przez Montrose Software zgodnie z Polityką Prywatności . English Version: I consent to Montrose Software processing my personal data according to the Privacy Policy Zapoznałem sie z Polityka Ochrony Sygnalistów Montrose Software. English Version: I consent to the Montrose Software Whistleblower Protection Policy.

🏢 Summary: Senior role focused on migrating and enhancing a rates trading platform from a legacy system to Murex, implementing data transformation between Murex and FpML formats, and building a trade booking bridge. The position involves moving services to a Linux/Java/PostgreSQL stack and optimizing database performance for capital markets systems. Work includes backend development and database configuration in a finance environment. 🗂️ Requirements: 7+ years hands-on software development experience, 5+ years database experience, 2+ years PostgreSQL experience, 3+ years Java 17+ experience, Experience with Spring, Experience with SpringBoot, Experience with unit testing, 5+ years GitHub experience, Experience with database configuration and optimization, Experience with database clustering, Experience with Docker, Experience with Kubernetes 📃 Skills: PostgreSQL, Java, Spring, SpringBoot, GitHub, Docker, Kubernetes, Linux, Murex, FpML, MsSQL, .NET, Windows, Clustering, UnitTesting 🏢 Description: Montrose Software (Polska) Sp. z o.o. Montrose Software is a software consultancy based in New Jersey (USA), with our primary development center in Kraków. We develop mobile apps, web applications and enterprise systems for a wide variety of clients. If you want to work on dynamic projects for world class clients in a fun workplace, do not hesitate to apply. Senior PostgreSQL and Java Developer Our client: Montrose Software has an ongoing relationship with one of the largest North American banks to enhance and maintain its production libraries and applications. The bank serves 17 million clients worldwide and provides personal and commercial banking, wealth management, insurance, investor services, and capital markets products and services globally. We work mainly with their capital markets teams, focusing on derivatives and fixed income systems. Project description: The bank made a strategic decision to migrate the rates trading platform from a legacy system to Murex. As the new system passes data in a new format, our team is to implement and enhance the system capabilities to transform between Murex format and FpML, as well as create a new bridge that will allow booking of trades in FpML form into Murex. The system supports a wide variety of financial products, starting from simple FRAs and Swaptions to complex products. As part of this project will be to move services from Windows/.NET/MsSQL to Linux/Java/PostgreSQL platform. Industry : Finance Location : Kraków / Hybrid/ Remote from Poland Your daily work will include: PostgreSQL database configuration, optimization and schema designing Writing well tested java code Configuring and working with database cluster and others like docker, kubernetes. Team & Collaboration 3 developers and 2 managers Regular meetings: Daily Stand-Up in afternoon hours. Communication via email and Webex chat Working hours: usually 9:00–17:00 CET Qualifications: Strong technical developer with 7+ years hands on experience 5+ years of experience in Database technologies, including 2+ years with PostgreSQL 3+ years of experience in Java 17+ with Spring, Spring-Boot, unit-tests. 5+ years of experience with version control systems like GitHub

🏢 Summary: Development role focused on building and maintaining complex C# applications and SQL Server databases for a B2B SaaS platform supporting operational and financial management. The position involves full lifecycle development, database design, multithreaded programming, and ongoing system maintenance. Work includes collaboration within a rotating team in a hybrid or remote setup in Poland. 🗂️ Requirements: 5+ years of C# and SQL Server development experience, Strong SQL Server database design and development skills, Experience developing multithreaded applications, Ability to design and maintain schemas, tables, views, functions, and stored procedures, Experience working across full software development life cycle, Proficiency with GIT version control, Familiarity with Control-M or other job scheduler, Bachelor's degree in Computer Science or related field 📃 Skills: C#, SQLServer, T-SQL, GIT, Control-M, Multithreading, StoredProcedures, Databases 🏢 Description: Our B2B SaaS platform helps small and mid-sized companies—especially software houses—manage their daily operations in one place. It keeps track of clients and contracts, project details and team members, invoicing, employee records and salaries, contract changes, and vacation requests, making it easier to plan work, organize resources, and stay on top of everything. Industry : Finance/ Management Location : Kraków / Hybrid/ Remote from Poland Responsibilities Develop, maintain, and troubleshoot complex C# and SQL Server applications, including multithreaded applications Design, develop and maintain SQL Server database schemas, tables, views, functions, and stored procedures Participate in the full software development life cycle from planning and design to implementation and maintenance Write clean, maintainable, and efficient code that adheres to industry best practices and coding standards Collaborate with team members, product owners, and stakeholders to ensure project objectives and deliverables are met in a timely fashion Participate in code reviews, testing, and deployment Work with the GIT version control system to manage code repositories, merges, and branches Be familiar with Control-M or any other job scheduler Troubleshoot and debug issues as they arise, and ensure that they are resolved in a timely manner Stay up-to-date with the latest technologies and industry trends related to C# and SQL Server development Team & Collaboration Rotating team depending on project needs Regular meetings: Daily Standups (12:30PM) and retrospectives - after release Communication : Chat, emails, and calls Working hours: usually 9:00–17:00 CET Qualifications: 5+ years of experience in C# and SQL Server development Strong knowledge of SQL Server database design and development Experience with Python is a plus Familiarity with GIT version control and Control-M Strong problem-solving skills and ability to think critically Excellent written and verbal communication skills Ability to work effectively in a team environment Bachelor's degree in Computer Science or a related field Nice to have: Javascript CSS/HTML MVC React.js Please note that the interview process is divided into four parts: Technical phone screening (~30 minutes) Technical interview (~2 hours) Non-technical call with HR team (~30 minutes) Call with client for which you will be working Perks, Snacks & Everything Nice :) Work Environment & Flexibility Top-quality equipment to support your work Flexible working hours Remote work option Exciting and challenging projects with international teams Learning & Development English lessons with a native speaker Dedicated training budget for personal and professional growth Health & Well-being Private medical insurance Multisport card Air-conditioned workspace Showers available at the office Food & Comfort Lunches from Kraków’s top restaurants delivered to the office or a refund of the budget allocated for it Fully stocked kitchen with drinks, fruit, and snacks Lifestyle & Fun No dress code — dress comfortably Chillout area with bean bags, therapy balls, PlayStation 4, Nintendo Switch 2 + games, stretching area, and pull-up bar Regular team events Additional Perks Indoor bicycle parking Wyrażam zgodę na przetwarzanie moich danych osobowych przez Montrose Software zgodnie z Polityką Prywatności . English Version: I consent to Montrose Software processing my personal data according to the Privacy Policy Zapoznałem sie z Polityka Ochrony Sygnalistów Montrose Software. English Version: I consent to the Montrose Software Whistleblower Protection Policy.

🏢 Summary: Paid 3-month internship for aspiring Software Testers to gain hands-on experience in manual testing within an Agile team on real internal projects. The program is designed for beginners and includes mentorship, practical project work, and the possibility of transitioning into a permanent role. Participants will create test documentation, execute manual tests, and collaborate with developers in an international environment. 🗂️ Requirements: Good spoken and written English, Availability to work from the office, Strong attention to detail, Analytical thinking, Good work organization, Willingness to learn software testing and new technologies 📃 Skills: Manual, Testing, Testcases, Bugreporting, Agile, English 🏢 Description: Montrose Software invites all aspiring Software Testers to apply for a paid Internship with an International IT Company. This 3-month program is designed for beginners, so no prior software testing experience is required, though it is a plus. You will gain hands-on experience working on real-life projects in an Agile team, focusing on testing internal company projects. Our experienced Testers will teach you everything you need to know from scratch—just bring your interest in the field and a willingness to learn. We are offering to extend the internship period into a regular position, with the possibility of working with international teams. Our requirements: Good spoken and written English Ability to work in office Good work organization Strong attention to details Willingness to learn new skills/technologies Analytical thinking You will be involved in: Performing software manual tests Creating test cases, test scenarios Reporting identified bugs Collaborating with developers on real projects Working as a member of an agile software team Please note that the interview process is divided into two parts: Technical interview ~1 hours Non-technical call with hiring manager ~45 minutes Perks, Snacks & Everything Nice :) Work Environment & Flexibility Opportunity for permanent employment Top-quality equipment to support your work Flexible working hours Exciting and challenging projects with international teams Learning & Development English lessons with a native speaker Dedicated training budget for personal and professional growth Health & Well-being Multisport card Air-conditioned workspace Showers available at the office Food & Comfort Lunches from Kraków’s top restaurants delivered to the office or a refund of the budget allocated for it Fully stocked kitchen with drinks, fruit, and snacks Lifestyle & Fun No dress code — dress comfortably Chillout area with bean bags, therapy balls, PlayStation 4, Nintendo Switch 2 + games, stretching area, and pull-up bar Regular team events Additional Perks Indoor bicycle parking

🏢 Summary: Long-term B2B hybrid role focused on hands-on Java and React development within a microservices architecture, contributing directly to production code and system design. The position emphasizes high-frequency delivery, REST API development, and collaboration in a global engineering environment. It combines technical leadership with active development in financial-sector projects. 🗂️ Requirements: Strong experience with Java, Strong experience with ReactJS, Experience with microservices architecture, Experience delivering RESTful APIs, Experience with PostgreSQL, Recent experience with modern Java versions, Ability to deliver code changes frequently, Background in banking or financial sector 📃 Skills: Java, ReactJS, Microservices, REST, PostgreSQL, Docker, Kubernetes 🏢 Description: Working mode: Hybrid - 6 days per month at the Kraków office Contract type: B2B, long term cooperation Rate: 200 PLN/h Summary: This role focuses on hands-on development and system architecture, driving engineering culture, and enhancing business growth through technical expertise in a collaborative, global environment. Main Responsibilities: Deliver code to production and support system architecture aligned to microservices Understand business, engineering, and non-functional requirements Drive the desired engineering culture across teams Collaborate with a globally diverse team across regions Proactively remove impediments, assess risks, and communicate issues to program management Identify and eliminate process inefficiencies Key Requirements: Strong Java and React programming experience Experience in microservice architecture Background in the financial sector, particularly banking Proven capability of delivering code changes at high frequency Experience with RESTful API delivery Familiarity with PostgreSQL databases Recent Java experience, preferably with the latest versions Experience with ReactJS for UI application development Nice to Have: Knowledge of containers and orchestration technologies like Docker and Kubernetes. Other Details: This position offers the opportunity to work within a multi-regional team on innovative projects. Ideal for candidates seeking to leverage their development skills in a dynamic and evolving business context.

🏢 Summary: Senior full-stack developer role focused on building and maintaining end-to-end solutions for a computing-intensive Prime Risk Analytics Platform in the finance domain. The position involves developing scalable front-end and back-end applications, optimizing performance, and supporting CI/CD and release processes in a global team environment. The role requires strong expertise in modern JavaScript frameworks, Java technologies, databases, and Linux-based systems. 🗂️ Requirements: Minimum 8 years of experience in software development, Master’s degree in related field, Strong experience with Angular and TypeScript, Strong experience with Java and Spring Boot, Strong knowledge of SQL and Microsoft SQL Server, Experience with CI/CD tools and Git, Experience with Selenium and automated testing, Experience with ServiceNow, Experience with Autosys and Unix shell scripting, Experience in message-driven architectures, Understanding of margin and risk financial concepts, Experience working in global, English-speaking environment 📃 Skills: Angular, TypeScript, Java, Spring, SpringBoot, JavaScript, HTML5, CSS, Highcharts, D3.js, Selenium, Jasmine, Karma, SQL, MSSQL, Git, CI/CD, ServiceNow, Autosys, Unix, KornShell 🏢 Description: Develop and deliver end-to-end software solutions for the Prime Risk Analytics Platform.  This team maintains systems that helps Prime Finance analyze the Risk of each of our clients as well as potential clients. The team designs and maintains sophisticated automated solutions to make this happen. As a computing intensive financial solution, the team requires a candidate with excellent technology skills. The candidate should be a team player with the ability to work well with a global team of developers on delivering solutions in the Prime Finance area.  Must have a solid understanding and experience with project delivery, software development life cycle, JavaScript modern frameworks, Java application technologies, databases and Linux. Work with project managers, business and senior managers to deliver well-architected scalable solutions in a timely project-oriented manner. Key responsibilities: Develop and enhance User Interfaces using Angular/TypeScript with charting frameworks like Highcharts and D3.js Write unit test cases (Jasmine/Karma) and automated front-end tests (Selenium or similar) Develop and enhance backend applications using Spring Boot Optimize applications for maximum speed and scalability Actively participate in code reviews, guide and mentor junior team members Manage the release process using ServiceNow and provide application support, leveraging knowledge of margin methodology and risk analytics Maintain Microsoft SQL Server database Contribute to building CI/CD pipelines and configure Autosys based on job requirements Requirements: General: Minimum 8 years of experience in a similar role – a plus if it’s in the Finance Sector Strong academic background with at least a master degree in a related field Excellent communication skills Track record of work under tight deadlines in a fast-paced environment Track record working in English across multiple time zones Experience working with users when gathering requirements and presenting work results Experience in Margin and Risk financial concepts Technical: Excellent knowledge of Angular/TypeScript, Highcharts, D3.js, HTML5, CSS, with experience in front-end unit and end-to-end testing (Selenium) Excellent Java knowledge for backend development Excellent SQL knowledge (ideally Microsoft SQL Server) Experience in working with and setting up Continuous Integration/Continuous Deployment tools, coupled with Git for version control Extensive experience working in message-driven environments Experience working with ServiceNow for IT service management Experience in working with and configuring Autosys, along with Unix and Korn shell scripting skills What we can offer you: By joining Citi Solutions Center Poland, you will not only be part of a business casual workplace with a hybrid working model (currently up to 2 days working at home per week), but also (potentially, subject to final offer) receive a competitive base salary and enjoy a whole host of additional benefits which can include: Employer paid Defined Contribution Pension Plan contribution of 6% of employee’s pensionable earnings (PPE Program) Employer paid Private Medical Care Package for employees and Private Medical Care Packages for certain family members available at preferential rates Employer paid Life Insurance Program for employees and Life Insurance for certain family members available at preferential rates Employee Assistance Program financed by Employer Paid Parental Leave Program (maternity and paternity leave; statutory and 2 weeks additional paid paternity leave) Sport Card for employees subsidized via Social Benefits Fund and Sport Cards for certain family members available at preferential rates Additional benefits from Company’s Social Benefit Fund, in particular: Holidays Allowance, support for sport and cultural activities, team building events. Additional day off for volunteering Cafeteria/ flex benefit – a company benefits system which enables employees to select and purchase benefits offered by a provider and available for employees on the platform. Opportunity to receive an annual discretionary incentive award Special offers and discounts for employees Copy and paste the URL below into a new tab on your web browser to view the Remuneration Regulations extract: https://tbcdn.talentbrew.com/company/287/cms/v3/docs/policies/RemunerationRegulations-KeyProvisions-CitibankEurope_plc_05012025_A.pdf Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self every day. We want the best talent around the world to be energized to join us, motivated to stay, and empowered to thrive. Sounds like Citi has everything you need? Then apply to discover the true extent of your capabilities. #LI-KK1 ------------------------------------------------------ Job Family Group: Technology ------------------------------------------------------ Job Family: Applications Development ------------------------------------------------------ Time Type: Full time ------------------------------------------------------ Primary Location Full Time Salary Range: 268 390,00 zł - 457 010,00 zł ------------------------------------------------------ Most Relevant Skills Please see the requirements listed above. ------------------------------------------------------ Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Automated Processing and AI We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi. Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details. ------------------------------------------------------ This job opening is for an existing job vacancy. ------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi . View Citi’s EEO Policy Statement and the Know Your Rights poster.

🏢 Summary: Development of a trade finance factoring system for financial institutions, replacing an existing solution within a microservices and containerized architecture. The role involves building and maintaining web applications with a balanced focus on backend (Java) and frontend (Angular) using modern technologies. Work is delivered in an agile environment with emphasis on code quality and system integration. 🗂️ Requirements: Minimum 5 years of experience in similar role, Java 21+ proficiency, Spring Boot knowledge, Hibernate knowledge, Angular 15+ knowledge, NgRx knowledge, Microservices architecture experience, Docker experience, RabbitMQ experience, Git proficiency, PostgreSQL or Oracle experience, Unit testing skills, REST and SOAP integration experience 📃 Skills: Java, Spring, Hibernate, Angular, NgRx, Docker, RabbitMQ, Git, PostgreSQL, Oracle, REST, SOAP, JUnit, Microservices, Gradle, Jenkins, MongoDB, Redis, Linux, Kubernetes, OpenShift 🏢 Description: About the client: Our client is one of the largest software producers in Europe and a leading IT solutions provider, delivering mission‑critical systems for sectors such as banking, finance, public administration, healthcare, energy, and telecommunications. The company operates as a global federation of technology firms, leveraging deep industry expertise to support digital transformation across more than 60 countries. About the project: You will join a team developing systems for financial institutions in the area of trade finance. We are currently implementing a factoring system that will replace the currently operating solution. In this field, we have many years of business experience. The projects are carried out in a microservices and containerized architecture, using the latest technologies: Java 24+, Angular 21. Requirements: Minimum 5 years of experience in a similar position, Very good knowledge of Java (21+), Spring Boot, Hibernate, Good knowledge of Angular (15) and ngrx, Experience with microservice architecture, Docker, RabbitMQ, Git, Postgres, Oracle, Ability to write unit tests, Experience with synchronous (REST, SOAP) and asynchronous (e.g., RabbitMQ) communication. Nice to have: Gradle, CI/CD, Jenkins, NoSQL databases (MongoDB, Redis), Linux knowledge (server management), Kubernetes or OpenShift, Architectural experience. Your responsibilities will include: Creating and developing web applications (50% backend / 50% frontend), Maintaining and extending the existing codebase, Implementing new functionalities, Participating in code reviews, Collaborating with backend, frontend, and QA teams, Contributing to PoCs (verification of new technologies), Delivering projects using agile methodologies. Employment conditions: Employment based on an employment contract, Work in the largest IT company, Access to advanced technologies, Trainings, Language courses, Multisport, Medical care, Group insurance, Integration events, Active Team sports group.

🏢 Summary: Full Stack Engineer role in the banking sector focused on building and delivering high-quality solutions within a microservices architecture. The position involves hands-on backend development, frequent production deployments, and collaboration with a global team to promote engineering best practices. Long-term B2B contract with hybrid work model and technical recruitment process including live coding. 🗂️ Requirements: Strong software engineering experience, Backend application design and development expertise, Experience with microservices architecture, Experience delivering code to production frequently, Experience developing and deploying RESTful APIs, Experience writing schemas for PostgreSQL, Experience working with PostgreSQL databases, Ability to work in English in a global team 📃 Skills: Java, REST, PostgreSQL, Docker, Kubernetes, GCP, ReactJS, Microservices 🏢 Description: Work mode: hybrid – 6 days per month in the Kraków office (days of your choice, including the option to attend all 6 days in a row). Start: ASAP/1 month. Contract: B2B. Recruitment process: 2 meetings; live coding, technical interview. Duration: >12 months contracts. Project language: English. Industry: Banking. Workload: Full time. Summary: This full stack engineer role focuses on delivering high-quality code through a microservices architecture while promoting engineering best practices within the team. Main Responsibilities: Be hands-on, delivering code to production, supporting the architecture and design aligned to a microservice structure. Maintain awareness of business, engineering, and non-functional requirements to support company growth. Drive a positive engineering culture across teams. Collaborate with a global team across regional boundaries. Proactively remove impediments, address risks, and communicate issues to program management. Identify process inefficiencies and find innovative solutions to eliminate them. Key Requirements: Strong experience in software engineering with proven expertise in backend application design, development, and deployment. Experience with delivering code in a microservice architecture. Demonstrated ability to deliver changes to production frequently. Experience in developing and deploying RESTful APIs. Prior experience writing schemas for and working with PostgreSQL databases. Nice to Have: Experience with Java, preferably recent versions. Understanding of containerization and orchestration technologies like Docker/Kubernetes and GCP Cloud platform. Experience in developing UI applications using ReactJS. Previous experience in the financial sector, specifically banking. Other Details: Team Structure: Global team collaboration across regions. Project Context: Focus on microservices and engineering culture.