{"id":3370147,"url":"https://alion.io/job/citi-lead-software-engineer-data-distributed-systems","title":"Lead Software Engineer - Data & Distributed Systems","company":{"id":7841,"name":"Citi","domain":"citi.com","url":"https://alion.io/company/citi","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":100,"open_postings":512,"ghost_share":0.006,"stale_share":0.131,"repost_share":0.072,"time_to_fill_p50_days":9,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":241750,"max":411650,"currency":"PLN","period":"year","gross":null,"usd_annual":104286},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"LLM","optional":false},{"name":"OpenShift","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-27T00:00:00Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-10-31T06:57:21Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"We are seeking an experienced, hands-on Lead Software Engineer with strong expertise in Java/Spring Boot, data engineering and distributed systems. The role will focus on developing scalable backend services, event-driven integrations and data processing capabilities that support modern enterprise platforms.\nThe successful candidate will provide technical leadership, contribute directly to software development, guide engineering teams and contractors, and collaborate with full-stack engineers to deliver reliable, data-intensive applications and AI-enabled solutions\nResponsibilities:\nLead the technical design and development of scalable backend services, data integrations and distributed applications.\nRemain hands-on in coding, implementing complex backend components, data processing logic and integration services.\nProvide day-to-day technical guidance to engineers and contractors, including design reviews, code reviews and technical problem-solving.\nDesign and develop event-driven solutions using Kafka, messaging platforms and asynchronous processing patterns.\nDrive effective data modelling, data ingestion, transformation and integration across enterprise systems.\nDevelop high-performance APIs and microservices using Java and Spring Boot.\nCollaborate with frontend engineers to deliver end-to-end application capabilities, with working knowledge of Angular and TypeScript.\nSupport AI-enabled capabilities, including data preparation, intelligent automation, retrieval workflows and integration with AI services.\nEstablish engineering standards for data quality, reliability, performance, scalability and maintainability.\nChampion automated testing, CI/CD, observability, secure development and operational resilience.\nIdentify and resolve complex technical challenges involving distributed systems, integration failures and data processing.\nMentor engineers, promote knowledge sharing and ensure sustainable internal ownership of developed solutions.\nRecommended Qualifications: \nStrong hands-on experience with Java, Spring Boot, REST APIs and microservices.\nStrong experience with SQL, relational databases, data modelling and data integration.\nExperience with Kafka, event-driven architecture and asynchronous messaging.\nGood understanding of distributed systems, scalability, resilience and performance optimisation.\nWorking knowledge of Angular, TypeScript and frontend-backend integration.\nExperience with data ingestion, transformation and processing pipelines.\nFamiliarity with Kubernetes/OpenShift, CI/CD and automated testing.\nExposure to AI/LLM technologies, retrieval systems or AI-driven data processing is advantageous.\nDemonstrated ability to lead technical delivery while contributing directly to production code.\nEducation:\nBachelor’s degree/University degree or equivalent experience\nMaster’s degree preferred\n\nWe offer:\nBy 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:\nEmployer paid Defined Contribution Pension Plan contribution of 6% of employee’s pensionable earnings (PPE Program)\nEmployer paid Private Medical Care Package for employees and Private Medical Care Packages for certain family members available at preferential rates\nEmployer paid Life Insurance Program for employees and Life Insurance for certain family members available at preferential rates\nEmployee Assistance Program financed by Employer\nPaid Parental Leave Program (maternity and paternity leave; statutory and 2 weeks additional paid paternity leave)\nSport Card for employees subsidised via Social Benefits Fund and Sport Cards for certain family members available at preferential rates\nAdditional benefits from Company’s Social Benefit Fund, in particular: Holidays Allowance, support for sport and cultural activities, team building events.\nAdditional day off for volunteering\nCafeteria/ 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.\nOpportunity to receive an annual discretionary incentive award\nSpecial offers and discounts for employees\nCopy and paste the URL below into a new tab on your web browser to view the Remuneration Regulations extract:\nhttps://tbcdn.talentbrew.com/company/287/cms/v3/docs/policies/RemunerationRegulations-KeyProvisions-CitibankEurope_plc_05012025_A.pdf\nAlongside 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.\nSounds like Citi has everything you need? Then apply to discover the true extent of your capabilities.\n------------------------------------------------------\nJob Family Group:\nTechnology------------------------------------------------------\nJob Family:\nSystems & Engineering------------------------------------------------------\nTime Type:\nFull time------------------------------------------------------\nPrimary Location Full Time Salary Range:\n241 750,00 zł - 411 650,00 zł------------------------------------------------------\nMost Relevant Skills\nPlease see the requirements listed above.------------------------------------------------------\nOther Relevant Skills\nFor complementary skills, please see above and/or contact the recruiter.------------------------------------------------------\nCiti 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.\nIf 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.\nView Citi’s EEO Policy Statement and the Know Your Rights poster.","description_format":"text","description_chars":6170,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Cafeteria","Hybrid work","Life insurance","Parental leave"],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cards & Card Issuing","Wealth Management & Financial Advisors","Payment Processing & Gateways","Investment Banking & M&A 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