Senior Full-Stack Engineer - Payments Platform

IQ Staffing; Amsterdam; On-site; EUR 80,000 - 120,000; Full time

Job summary

IQ Staffing is seeking a Senior Full-Stack Engineer to own end-to-end development for a high-volume payments platform in the Netherlands. You will shape technical direction across frontend and backend using TS, Node.js, React and Java/Spring Boot, while building resilient, cloud-native solutions on AWS.

Responsibilities include designing scalable payment solutions, evolving microservices, infrastructure as code, and mentoring peers. Experience with PSD2 or fintech payments is a plus.

Qualifications

• Senior-level engineering experience within large-scale digital products or platforms.

Responsibilities

• Design scalable payment solutions and transaction flows.
• Develop and evolve production microservices architectures.
• Build cloud-native services using AWS.
• Work across frontend and backend development using TypeScript, Node.js, React and Java/Spring Boot.
• Design infrastructure using AWS CDK and CloudFormation.
• Work with services such as ECS, Lambda, DynamoDB, SNS and SQS.
• Build and maintain CI/CD workflows through GitHub Actions.
• Use GitHub Copilot and AI-assisted development tools as part of daily workflow.
• Contribute to architecture, solution design and technical decision-making.
• Improve scalability, resilience, maintainability and engineering quality.
• Mentor engineers and contribute to strong engineering practices across the team.

Skills

Senior-level engineering

Payments/fintech domain

Mentoring engineers

Tools

AWS

CloudFormation

ECS

Lambda

DynamoDB

SNS

SQS

AWS CDK

TypeScript

Node.js

React

Java/Spring Boot

GitHub Actions

GitHub Copilot

Job description

IQ Staffing is seeking a Senior Full-Stack Engineer to own end-to-end development for a high-volume payments platform in the Netherlands. You will shape technical direction across frontend and backend using TS, Node.js, React and Java/Spring Boot, while building resilient, cloud-native solutions on AWS.

Responsibilities include designing scalable payment solutions, evolving microservices, infrastructure as code, and mentoring peers. Experience with PSD2 or fintech payments is a plus.