Fullstack Engineer (Fintech)

TL;DR

Fullstack Engineer (TypeScript/React/Node): Building financial infrastructure and products for millions of users in Europe with an accent on payments, credit decisioning, and internal AI systems. Focus on designing end-to-end solutions, scaling infrastructure across markets, and integrating frontier AI models into financial experiences.

Location: Stockholm, Sweden (Office-based). EU work authorization required.

Company

European fintech company helping people improve their financial well-being through a broad financial platform.

What you will do

• Own work end-to-end in small cross-functional teams, from identifying problems to shipping and operating in production.
• Develop core systems for payments, credit decisioning, and customer experience.
• Build and maintain internal AI tooling and agent infrastructure using frontier models.
• Scale technical infrastructure across multiple European markets.
• Collaborate closely with product, data, and commercial teams to solve real-world financial problems.

Requirements

• Proficiency with TypeScript, React, and Node.js.
• Experience with Python, Go, GraphQL, and PostgreSQL.
• Knowledge of BigQuery, Kubernetes, and GCP.
• Must be based in Stockholm for office-based collaboration during most of the week.
• Valid EU work authorization is required.

Culture & Benefits

• High level of ownership and impact without unnecessary bureaucracy.
• Modern tooling and high engineering standards.
• Collaborative environment focused on fast feedback loops and in-person problem solving.
• Opportunity to work with advanced AI and machine learning integrated into the product.
• Fast decision-making and high-trust culture.