Senior Full Stack Engineer (Python, FastAPI, Next.js)

Quick Facts

Senior Full Stack Engineer (Python & Next.js) supporting investment reference data management and integration.

Description

Join the Data Team to design and build full-stack applications that bring entity, portfolio, and security reference data closer to the investment lifecycle. You will develop backend services, APIs, and data-processing components, and build responsive frontend workflows for onboarding, validation, review, reconciliation, and downstream distribution. The role also covers data modeling and reliable integration between investment entities and platforms.

Responsibilities

• Design, develop, and maintain full-stack applications for reference data management and investment workflows
• Build backend services, APIs, and data-processing components
• Create frontend interfaces for data management, validation, search, review, and operational workflows
• Implement data integration solutions for entity, portfolio, and security reference data
• Establish and maintain reliable data relationships across investment entities, funds, portfolios, securities, issuers, counterparties, and instruments
• Support onboarding, enrichment, validation, approval, reconciliation, and downstream distribution workflows
• Collaborate with investment and operations stakeholders to align data with 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
• Use relational databases and data services to support efficient data access and processing
• Implement data transformation, validation, and synchronization processes across systems
• Lead refactoring and redesign efforts with focus on 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 or Microsoft SQL Server
• Experience with data modeling, data validation, and integration patterns
• Experience with data integration and ETL/ELT using Python data pipelines
• Experience with Kubernetes clusters and containerized deployments using Ubuntu-based images
• Strong test automation skills, including 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)
• System design expertise across microservices, database modeling, and API design
• English proficiency at B2 level or higher

Benefits

• Hybrid work model with opportunity to work remotely within Poland
• Chance to work abroad up to 60 days annually and potential relocation opportunities
• Career development programs, mentoring, soft skills, and well-being programs
• Certification support (Anthropic, Gemini, GCP, Azure, AWS) and English classes
• Stable pay and Employee Stock Purchase Plan with 15% discount
• Health insurance, multisport, shopping vouchers
• Referral bonuses up to $2,000