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

Quick Facts

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

Description

Build and maintain full-stack applications for reference data management and investment-related workflows. Design backend services, APIs, and data-processing components, and develop responsive frontend interfaces for onboarding, enrichment, validation, approval, reconciliation, and downstream distribution. Integrate entity/portfolio/security reference data services with internal investment platforms, data warehouses, and enterprise applications.

Responsibilities

• Design, develop, and maintain full-stack applications for reference data management and investment workflows
• Build backend services, APIs, and data-processing components
• Develop frontend interfaces for data management, validation, search, review, and operational workflows
• Deliver data integration solutions for entity, portfolio, and security reference data
• Establish reliable data relationships between investment entities, funds, portfolios, securities, issuers, counterparties, and related instruments
• Support onboarding, enrichment, validation, approval, reconciliation, and downstream distribution workflows
• Collaborate with investment and operations stakeholders on reference data needs across the investment lifecycle
• Design and implement RESTful APIs and event-driven integrations where appropriate
• Integrate reference data services with internal investment platforms, data warehouses, and enterprise applications
• Work with relational databases and data services for efficient access and processing
• Implement data transformation, validation, and synchronization processes across systems
• Lead refactoring and redesign efforts for resiliency, compliance, and auditability

Requirements

• 7+ years of experience with Python, FastAPI, Next.js, React, TypeScript, SQL, and Docker
• Experience designing and implementing RESTful APIs and event-driven integrations using Kafka
• Knowledge of SQL and relational databases (preferably PostgreSQL, Microsoft SQL Server, or equivalent)
• Experience with data modeling, data validation, and integration patterns
• Experience with data integration, ETL/ELT, and Python data pipelines
• Working experience with Kubernetes clusters and containerized applications using Ubuntu-based images
• Strong commitment to test automation (unit and manual integration testing)
• Experience working in agile teams on complex, high-stakes applications
• Collaborative mindset with code reviews and peer learning
• Comfort working with teams across the globe
• Familiarity with Atlassian tools (Jira, Confluence)
• English proficiency at B2 level or higher

Benefits

• Hybrid by design; opportunity to work remotely within Poland
• Work abroad up to 60 days annually
• Career development programs, mentoring, and soft skills/well-being programs
• Certifications (Anthropic, Gemini, GCP, Azure, AWS)
• English classes
• Stable pay and Employee Stock Purchase Plan (15% discount)
• Benefits package (health insurance, multisport, shopping vouchers)
• Referral bonuses up to $2,000
• Employee events and workplace amenities (e.g., entertainment/relaxation zones, snacks, coffee)