Senior Enterprise Payments Integration Architect

Adyen; Greater London; On-site; GBP 120,000 - 150,000; Full time

Job summary

Adyen in London seeks a Senior Implementation Engineer to lead the design and delivery of mission-critical payment integrations for global merchants. You will influence how enterprises design and operate payment infrastructure at scale, impacting reliability, performance, and scalability of flows used by millions of customers worldwide.

You will shape technical direction, mentor engineers, and collaborate with Sales and product teams to evolve the platform.

Qualifications

• 12+ years of experience in software engineering or technical consulting with deep API integration experience.
• Deep system design and distributed systems expertise.
• Ability to operate as a solution architect and trusted advisor in complex, enterprise environments.
• Experience contributing to production-level systems with pragmatic engineering trade-offs.
• Comfortable engaging with senior technical and business stakeholders.
• Proven ability to mentor and develop engineers.

Responsibilities

• Deliver complex, multi-region enterprise integration projects.
• Design scalable, high-availability architectures for global merchants handling large transaction volumes.
• Define and ensure technical standards across implementation engineering teams.
• Act as a strategic technical advisor in both pre-sales and delivery phases, shaping solutions alongside Sales and senior merchant stakeholders.
• Shape industry standards and the broader ecosystem by defining how large-scale payment architectures are built and scaled.
• Foster best practices in reliability, scalability, security, and system design (e.g. idempotency, fault tolerance).
• Mentor and support Implementation Engineers across the organization.
• Partner with Product and Engineering to influence platform evolution and new product design.
• Manage critical escalations and ensure stability of high-scale merchant integrations.

Skills

API integration

System design

Distributed systems

Solution architecture

Technical mentoring

Job description

Adyen in London seeks a Senior Implementation Engineer to lead the design and delivery of mission-critical payment integrations for global merchants. You will influence how enterprises design and operate payment infrastructure at scale, impacting reliability, performance, and scalability of flows used by millions of customers worldwide.

You will shape technical direction, mentor engineers, and collaborate with Sales and product teams to evolve the platform.