Senior TypeScript Full-Stack Engineer – Payments (Amsterdam)

Gazelle Global; Amsterdam; On-site; EUR 90,000 - 140,000; Full time

Job summary

Gazelle Global is seeking a Senior Full Stack Developer (TypeScript) to help build and evolve the payment infrastructure behind a banking-grade fintech app used by millions. You will work across frontend and backend, focusing on scalable cloud-native solutions on AWS, with emphasis on architecture, design, and deployment.

You will lead with best practices, mentor engineers, and collaborate with product and security teams.

Qualifications

• Senior-level experience in large-scale digital products or platforms.
• Payments domain experience: processing, transaction flows, PSD2, acquiring, gateways and/or wallets.
• Deep experience designing microservices architectures in production.
• Strong AWS hands-on: CloudFormation, ECS, Lambda, DynamoDB, SNS, SQS.
• Proficiency in TypeScript, Node.js, React, Java/Spring Boot, AWS CDK.
• Experience with Agentic Engineering or AI-native development practices.
• Day-to-day use of GitHub Copilot or comparable AI coding tools in a professional team.
• GitHub Actions and AI-assisted delivery workflows as part of your standard process.
• Background in banking and/or fintech.

Responsibilities

• End-to-end design from architecture to deployment and optimization.
• Influence technical direction and raise engineering quality.
• Work across frontend and backend with cloud-native scalability in a regulated payments environment.

Skills

Payments domain knowledge

Microservices design

Cloud-native engineering

AI-native development practices

GitHub Copilot usage

Tools

TypeScript

Node.js

React

Java/Spring Boot

AWS CDK

CloudFormation

ECS

Lambda

DynamoDB

SNS

SQS

GitHub Actions

GitHub Copilot

Job description

Gazelle Global is seeking a Senior Full Stack Developer (TypeScript) to help build and evolve the payment infrastructure behind a banking-grade fintech app used by millions. You will work across frontend and backend, focusing on scalable cloud-native solutions on AWS, with emphasis on architecture, design, and deployment.

You will lead with best practices, mentor engineers, and collaborate with product and security teams.