Senior API & Integration Engineer

Adyen; Sydney; On-site; AUD 120,000 - 180,000; Full time

Job summary

Adyen is seeking an Implementation Engineer in Sydney to partner with fast-growing and enterprise businesses to design, integrate, and scale how they use Adyen’s payment platform. You’ll lead end-to-end technical delivery across API-based integrations, advise on architecture decisions, and collaborate with Sales, Product, and Engineering to ensure successful deployments and production readiness.

This role is Sydney-based and office-first, with in-person collaboration valued and no remote-only

Qualifications

• 5+ years of experience in technical consulting, integrations, or software engineering.
• Deep understanding of APIs and experience working across frontend and backend systems.
• Comfortable making decisions in ambiguous environments.
• Strong communicator who can lead technical discussions with both technical and business stakeholders.
• Proactive builder who takes initiative to see projects through to completion.

Responsibilities

• Deliver end-to-end implementation projects from solution design through to go-live.
• Design and help merchants build high-performance, API-based integrations for complex systems.
• Partner with Sales during pre-sales to shape solutions and support technical discussions with prospective merchants.
• Act as the primary technical partner for merchants, guiding architecture and integration decisions.
• Build alignment across Product, Engineering, Sales, and Project Management to drive the best outcomes for merchants.
• Guide merchants through technical design decisions, testing, and production readiness.
• Improve delivery quality by sharing best practices and helping elevate team knowledge.
• Support a culture of growth by sharing knowledge and helping others succeed.
• Act as the voice of the merchant internally, translating customer needs into actionable insights.

Skills

APIs

Integrations

Technical consulting

Frontend/backend understanding

Communication

Proactive builder

Job description

Adyen is seeking an Implementation Engineer in Sydney to partner with fast-growing and enterprise businesses to design, integrate, and scale how they use Adyen’s payment platform. You’ll lead end-to-end technical delivery across API-based integrations, advise on architecture decisions, and collaborate with Sales, Product, and Engineering to ensure successful deployments and production readiness.

This role is Sydney-based and office-first, with in-person collaboration valued and no remote-only