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Support the Netherlands commercial team in pre-sales by building custom demos, performing deep technical discovery, designing scalable API-based solutions, presenting technical value to customers, collaborating on upsell initiatives, training internal teams, and handing over implementations post-signature.

Design and build large-scale, high-volume payment systems; lead architecture and technical initiatives; mentor junior engineers; iterate on product features; ensure code quality, documentation, and engineering best practices.

Lead and grow a team of application engineers, drive technical decisions for large-scale distributed systems, coordinate cross-functional initiatives, mentor engineers, improve team velocity, and shape product and domain strategy while balancing hands-on engineering with high-level vision.

Own and operate Mollie’s edge and networking infrastructure, ensuring secure, highly available gateways. Design scalable cloud networking and Kubernetes solutions, automate infrastructure with IaC, optimize API gateway performance, set SLOs/SLAs, and drive observability using tools like Datadog to keep payment traffic reliable at scale.

Maintain and optimise self-hosted CI/CD infrastructure, ensuring stability, scalability and high availability. Monitor and respond to outages, diagnose and resolve CI/CD tooling issues, implement governance and efficiency strategies, optimise compute/storage usage, and collaborate with engineering teams to enable reliable developer workflows.

Own commercial and sales analytics to inform GTM strategy. Build performance models, run market sizing and win/loss analysis, automate reporting with AI and visualisations, and deliver senior-ready recommendations to drive revenue growth.

Take end-to-end ownership of self-serve partner integration features across frontend and backend. Design, build and maintain APIs, services and embedded components, scale systems for high transaction volumes, collaborate with Product, and measure performance in production while proposing and evaluating product trade-offs.

Build and maintain Mollie's web and mobile UI, owning design system, navigation, accessibility, testing and release processes. Work across frontend, backend and infrastructure to scale apps, improve CI/CD and deliver reliable, high-quality merchant experiences.

As a Business Support Specialist, you will provide exceptional support to customers via live chat, email, and phone, while advising on products and contributing feedback to improve customer experience.

Lead a team of application engineers, drive technical roadmap and cross-domain initiatives, mentor and grow engineers, improve team velocity, and deliver scalable, fault-tolerant product solutions while balancing hands-on engineering and strategic direction.