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    Senior Back-end Engineer - Payments Platform (PHP)

    Mollie
    Amsterdam / Fully Remote Full-time €70.000 - €90.000 a year 2026-07-18

    About Mollie

    Mollie is a leading payment service provider dedicated to simplifying payments for businesses. They offer a robust platform that supports various payment methods and focuses on combining innovative technology with strong customer support.

    About the Position

    Introduction

    Mollie is seeking a Senior Back-end Engineer to join their Payments Platform team. This role focuses on designing, building, and maintaining scalable and reliable services for their payment processing platform, enabling businesses to simplify their payment methods. You'll contribute to the full lifecycle of payment methods, from ideation to operation, working with modern technologies like Golang, PHP, Kubernetes, AWS, and Kafka.

    Responsibilities

    • Design, build, and maintain efficient, scalable, and reliable services.
    • Participate in the entire application lifecycle, focusing on coding, debugging, and testing.
    • Write clean, testable, and maintainable code.
    • Perform code reviews across the team to ensure code quality and share knowledge.
    • Collaborate with other teams to integrate new features and services.
    • Continuously improve and optimize services for maximum performance, security, and scalability.
    • Help define the technical direction and architecture for Mollie.
    • Contribute to Mollie’s engineering culture by suggesting ideas, giving feedback, and coaching other engineers.

    Requirements

    • 4+ years of relevant experience.
    • Comfortable working with PHP.
    • Experience working with an event-driven architecture.
    • Experience with SQL (preferably MySQL) and NoSQL solutions.
    • Experience in working with scalable and highly-available systems, including deployment and monitoring of services.
    • Experience with microservice architecture.
    • Ability to debug large systems.
    • Good communication skills, comfortable in technically leading the team and coaching other engineers.

    Nice to Have

    • Experience with Golang.
    • Experience with GraphQL and Protobuf.
    • Prior experience with payments or financial services.
    • Experience with Kafka and Kubernetes.
    • Experience working with high load and large datasets.

    Benefits

    • Competitive Salary.
    • Sparkling new office at Keizersgracht (Amsterdam).
    • Generous pension plan.
    • Flexible working arrangements in Amsterdam/remote (hybrid).
    • An amazing work hard/play hard culture.
    • Reimbursed commuting costs.
    • Inspiring, diverse, and international work environment.
    • Sponsored daily delicious and healthy lunch and other Mollie snacks.
    • MacBook or laptop of your choice + accessories.
    • The best tools and gear you need to be productive.
    • Solid training & development budget.
    • A collective health insurance plan paid for by Mollie.
    • Fun events, annual Mollie summer party abroad & winter party at a cool location.

    About Company

    Mollie is a leading payment service provider dedicated to simplifying payments for businesses. They offer a robust platform that supports various payment methods and focuses on combining innovative technology with strong customer support.

    How to Apply

    Apply by clicking the button below. The more information you share in your CV and cover letter, the better we can assess your application. As the first step in the process, you will receive an invitation for an introductory chat via Google Meet.

    Apply Now

    Your data is only shared with Mollie

    Location

    Amsterdam / Fully Remote

    Type

    Full-time

    Keywords

    PHP
    Backend
    Payments
    Microservices
    Golang
    Kubernetes
    AWS
    Kafka
    SQL
    MySQL
    NoSQL
    GraphQL
    Protobuf
    Fintech
    Verified Company

    Senior Back-end Engineer - Payments Platform (PHP)

    Mollie