{"id":3983048,"url":"https://alion.io/job/epam-systems-poland-senior-full-stack-engineer-python-next-js-with-data-integration","title":"Senior Full Stack Engineer (Python & Next.js) with Data Integration","company":{"id":2612641,"name":"EPAM Systems Poland","domain":"epam-poland.pl","url":"https://alion.io/company/epam-poland","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Katowice, Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Confluence","optional":false},{"name":"ETL/ELT","optional":false},{"name":"FastAPI","optional":false},{"name":"Jira","optional":false},{"name":"Kubernetes","optional":false},{"name":"MS SQL","optional":false},{"name":"Next.js","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"Ubuntu","optional":false},{"name":"Anthropic","optional":true},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"GCP","optional":true},{"name":"GitHub","optional":true},{"name":"GitHub Actions","optional":true},{"name":"JavaScript","optional":true},{"name":"Platform Engineering","optional":true}],"status":"live","first_seen_at":"2026-11-09T18:05:48Z","employer_posted_date":null,"last_verified_at":"2026-11-09T18:05:48Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"We are seeking a Senior Full Stack Engineer to support the Data Team, which aligns with Investment Systems Engineering to bring entity, portfolio, and security reference data closer to the investment lifecycle.\nResponsibilities\nDesign, develop, and maintain full-stack applications supporting reference data management and investment-related workflows\nBuild robust backend services, APIs, and data-processing components\nDevelop intuitive, responsive frontend interfaces for data management, validation, search, review, and operational workflows\nDeliver data integration solutions supporting the management and distribution of entity, portfolio, and security reference data\nEstablish reliable data relationships between investment entities, funds, portfolios, securities, issuers, counterparties, and related financial instruments\nSupport workflows such as reference data onboarding, enrichment, validation, approval, reconciliation, and downstream distribution\nCollaborate with investment and operations stakeholders to understand how reference data supports the investment lifecycle\nDesign and implement RESTful APIs and, where appropriate, event-driven integrations\nIntegrate reference data services with internal investment platforms, data warehouses, and enterprise applications\nWork with relational databases and data services to support efficient data access and processing\nImplement data transformation, validation, and synchronization processes across systems\nLead refactoring and redesign initiatives, architecting for resiliency, compliance, and auditability\nRequirements\n7+ years of experience with Python, FastAPI, Next.js, React, TypeScript, SQL, and Docker\nExperience designing and implementing RESTful APIs and event-driven integrations using Kafka\nKnowledge of SQL and relational databases, preferably PostgreSQL, Microsoft SQL Server, or equivalent\nExperience with data modeling, data validation, and integration patterns\nExperience with data integration, ETL/ELT, and Python data pipelines\nWorking experience with Kubernetes clusters and applications deployed as containers using Ubuntu-based images\nStrong commitment to test automation, including robust unit and manual integration testing\nExperience working in agile teams on complex, high-stakes applications\nCollaborative mindset, with a commitment to code reviews and peer learning\nComfortable working with teams across the globe\nFamiliarity with Atlassian tools (Jira, Confluence, etc.)\nSystem design expertise across microservices, database modeling, and API design\nEnglish proficiency at B2 level or higher\nNice to have\nExperience with GitHub Actions, Jira–GitHub integrations, and DevOps best practices\nPrior exposure to financial services or capital market domains\nWe offer\nWe gather like-minded people:\nTop tech minds driving innovation in AI, cloud and digital platform modernization\nSupportive team and agile, startup-like culture\nHybrid by design mode and opportunity to work remotely within Poland\nChance to work abroad for up to 60 days annually\nBusiness-driven relocation opportunities\n\nWe provide growth opportunities:\nCareer development programs\nThought leadership, mentoring, soft skills and well-being programs\nCertification (Anthropic, Gemini, GCP, Azure, AWS)\nEnglish classes\n\nWe cover it all:\nStable pay\nParticipation in the Employee Stock Purchase Plan with a 15% discount\nBenefits package (health insurance, multisport, shopping vouchers)\nReferral bonuses up to $2,000\nOffices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more\nCorporate, social and well-being events\n\nPlease, note:\nBenefits listed above are available to employees only\nWe are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually\nWe will reach out to selected candidates exclusively\n\nEPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. 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