Senior Java Cloud Developer at Citigroup in Warsaw, Mazovia, Poland

Senior Java Cloud Developer Location: Warsaw Poland Team/Role Overview: We are seeking a Senior Engineer to fill the role of ‘Applications Development Technology Lead Analyst’ on theXiNGlarge scale distributed calculation platform (XiP). In thisroleyou will design, build, andmaintainthe software that manages and controls theXiPplatform. This engine is responsible for 500 million risk& suitabilitycalculations at Citi every day. The calculation engine at the core ofXiPis both highly performant and rapidly changing to support new scenarios, technologies, and infrastructure. As an engineer working onXiP, you will work on a platform whichdaily;coordinates hundreds of thousands of pods, consumes tens of thousands ofcomputecores,utilizeshundreds of TB of memory, and distributes hundreds of millions of calculations. You will work closely with software engineers, DevOps, and our customers to ensure reliable, secure, and scalable operations of the platform. Responsibilities: Take partofthe shared responsibility for the long-term strategic direction of theXiPPlatform:Apply your experience and skills to develop the future versions of the calculation engine. This means making it faster,utilizeresources better, andscaleto even greater sizes. This means adding new features withoutimpactingperformance of the platform inundesirablemanner, smallchanges multiplied by millions of calculations havea high cost.This means solving hard problems like transferring small amounts of data to a huge number of machines. Serve as advisor or coach to team members,allocatingand overseeing work:Mentor and guide mid-level developers,providingtechnical advice, code reviews, and career development support. Allocate tasks based on skill sets and project priorities, ensuring balanced workloads andtimelydelivery. Foster a collaborative and growth-oriented team environment, encouraging best practices and continuous learning. Implement changes and improvements tothecomputeservice CI/CD pipeline, includingdeveloping themechanismtoenablefrequent software updatesessentialfor aSaaS offering,whileempowering the users to configurea fixed set ofapplicationproperties:Lead the design, development, and implementation oftheCI/CD pipeline thatis best fit for a SaaS product.Design and deliver anAPI to empower our users tobe able tohave a controlled level ofaccesstothe pipelinewhichallows them tocustomize how the application is run for their use cases. Designand buildnewmechanisms forrapidtestingofthe platform:Improve the current system testmechanismto enablerapid and reliable testing of theplatform, andwork closely with DevOps engineers to evolve/ create the next generation test mechanismsuitable fordaily release cycle of microservice components. Plan, coordinate, and execute strategic changes to thecalculation platformto reach the next scaling milestone:Develop and manage strategic initiatives aimed at scaling theXing Calculation Serviceto meet future business demands.Coordinate with stakeholders to ensure that all scaling efforts are aligned with customer needs. Provide specialized customer support tooptimizeand improve large, distributed calculations:Act as a primary point of contact for clients to address issues andoptimizeinefficiencies that arise during distributed workload execution. Qualifications: Over 10 years of professional Java software development experience. Solid experience with Java frameworks such as Spring, Spring Boot, and Quarkus. Proficient in CI/CD pipelines, DevOps practices, cloud platforms (AWS, Azure, GCP), and containerization (Docker, Kubernetes). Experience in designing, building, and maintaining large-scale, distributed systems. Skilled in RESTful API design and implementation with a strong understanding of object-oriented programming and design patterns. Experience with testing frameworks including JUnit, Mockito, and Cucumber. Familiarity with Agile/Scrum development environments. Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. 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 This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. ------------------------------------------------------ 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.