Full Stack Engineer II

Milan💼 Full-time🗓 2026-08-03 → 2026-09-26

Core

End-to-end ownership of product development for Mollie's Partner Experience self-serve track, enabling platforms and marketplaces to offer payments to merchants via Connect APIs.

Role type

Senior Full Stack Engineer (Product)

Builds

Self-serve integration experience, Connect activation, payment APIs, and multi-sub-merchant support for partners.

Domain

Fintech / Payments / B2B SaaS

Deliverable

production ML models | product features

Required skills

Full-stack development, React, React Native, TypeScript, API design, system design, embedded component development, product mindset, trade-off analysis

Preferred skills

Experience in fast-paced, broad-scope environments, ability to work with vague requirements, proactive idea generation

Technologies

React, React Native, TypeScript

Responsibilities

Design, build, and maintain APIs, services, and embedded components across frontend and backend; take ownership of product development from idea to production; weigh product trade-offs and make architectural decisions; work across multiple interacting systems; challenge ideas and drive innovation.

Seniority

Senior, hands-on IC

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About Mollie

Financial Services1168Amsterdam, North Holland, NLFounded 2004

Mollie offers a single platform for businesses to get paid and manage their money. One that makes payments, reconciliation, reporting, fraud prevention, and financing simple for all – from startups to enterprises. Founded in 2004, Mollie’s mission is to make payments and money management effortless for every business in Europe. Our 850-strong team works from offices across the continent, including Amsterdam, Ghent, Lisbon, London, Maastricht, Milan, Munich, Berlin, Kiel and Paris. Today, more than 250,000 businesses use Mollie to drive revenue, reduce costs, and manage funds.