Senior Full Stack Engineer (Python & Next.js) with Data Integration

EPAM Systems; Polska; Hybrid; PLN 180,000 - 320,000; Full time

Benefits offered by this job

Health insurance

Multisport card

Employee stock purchase plan

Job summary

EPAM Systems Inc is seeking a Senior Full Stack Engineer to support the Data Team in Poland. You will design, develop, and maintain full-stack applications for reference data management and investment workflows, building robust APIs, data pipelines, and responsive frontends.

You will collaborate with stakeholders across the investment lifecycle, implement RESTful APIs and event-driven integrations, and work with Kubernetes and cloud-native architectures. Hybrid work within Poland is supported.

Qualifications

• 7+ years of experience with Python, FastAPI, Next.js, React, TypeScript, SQL, and Docker.

Responsibilities

• Design, develop, and maintain full-stack applications for reference data management and investment workflows.
• Build robust backend services, APIs, and data-processing components.
• Develop intuitive frontend interfaces for data management, validation, search, review, and workflows.
• Deliver data integration solutions for entity, portfolio, and security reference data.
• Establish data relationships between investment entities and instruments.
• Support onboarding, enrichment, validation, reconciliation, and distribution workflows.
• Design RESTful APIs and event-driven integrations; integrate with internal platforms.

Skills

Python

FastAPI

Next.js

React

TypeScript

SQL

Kafka

Tools

Docker

Kubernetes

GitHub Actions

Job 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.ResponsibilitiesDesign, develop, and maintain full-stack applications supporting reference data management and investment-related workflowsBuild robust backend services, APIs, and data-processing componentsDevelop intuitive, responsive frontend interfaces for data management, validation, search, review, and operational workflowsDeliver data integration solutions supporting the management and distribution of entity, portfolio, and security reference dataEstablish reliable data relationships between investment entities, funds, portfolios, securities, issuers, counterparties, and related financial instrumentsSupport workflows such as reference data onboarding, enrichment, validation, approval, reconciliation, and downstream distributionCollaborate with investment and operations stakeholders to understand how reference data supports the investment lifecycleDesign and implement RESTful APIs and, where appropriate, event-driven integrationsIntegrate reference data services with internal investment platforms, data warehouses, and enterprise applicationsWork with relational databases and data services to support efficient data access and processingImplement data transformation, validation, and synchronization processes across systemsLead refactoring and redesign initiatives, architecting for resiliency, compliance, and auditabilityRequirements7+ years of experience with Python, FastAPI, Next.js, React, TypeScript, SQL, and DockerExperience designing and implementing RESTful APIs and event-driven integrations using KafkaKnowledge of SQL and relational databases, preferably PostgreSQL, Microsoft SQL Server, or equivalentExperience with data modeling, data validation, and integration patternsExperience with data integration, ETL/ELT, and Python data pipelinesWorking experience with Kubernetes clusters and applications deployed as containers using Ubuntu-based imagesStrong commitment to test automation, including robust unit and manual integration testingExperience working in agile teams on complex, high-stakes applicationsCollaborative mindset, with a commitment to code reviews and peer learningComfortable working with teams across the globeFamiliarity with Atlassian tools (Jira, Confluence, etc.)System design expertise across microservices, database modeling, and API designEnglish proficiency at B2 level or higherNice to haveExperience with GitHub Actions, Jira–GitHub integrations, and DevOps best practicesPrior exposure to financial services or capital market domainsWe offerWe gather like-minded people:Top tech minds driving innovation in AI, cloud and digital platform modernizationSupportive team and agile, startup-like cultureHybrid by design mode and opportunity to work remotely within PolandChance to work abroad for up to 60 days annuallyBusiness-driven relocation opportunitiesWe provide growth opportunities:Career development programsThought leadership, mentoring, soft skills and well-being programsCertification (Anthropic, Gemini, GCP, Azure, AWS)English classesWe cover it all:Stable payParticipation in the Employee Stock Purchase Plan with a 15% discountBenefits package (health insurance, multisport, shopping vouchers)Referral bonuses up to $2,000Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and moreCorporate, social and well-being eventsPlease, note:Benefits listed above are available to employees onlyWe are open for working with Contractors. Terms of B2B cooperation agreements are agreed individuallyWe will reach out to selected candidates exclusivelyEPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.