Senior ERP & API Integration Engineer

Airwallex-; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Airwallex is seeking an experienced implementation and delivery professional to act as a trusted technical advisor for high-value customer integrations in the UK. You will partner with activation, onboarding, and account management teams to translate requirements into scalable architectures, focusing on ERP, HRIS, and API integrations.

You will collaborate with Sales to define discovery scopes, recommend integration blueprints, and guide customers through complex configuration decisions, while

Qualifications

• Bachelor’s degree in a related field or equivalent practical experience.
• 5+ years of experience in implementation, onboarding, customer success, or project management.
• 4+ years of client-facing delivery in SaaS, fintech, consulting, or systems integration.
• Proven track record delivering cross-functional projects with diverse stakeholders including C-level and technical teams.
• Exceptional written and verbal communication and presentation skills.
• Experience delivering ERP, accounting systems, or expense platforms and the associated data flows (GL, cost centres, entities, card feeds).

Responsibilities

• Act as a trusted technical advisor to customers and internal teams on high-value implementations and expansions.
• Partner with activation/onboarding and account management teams to translate customer requirements into scalable architectures.
• Work with sales teams on technical discovery to understand customer systems, data flows, and workflows, and recommend a best-fit integration blueprint including APIs and third-party connectors.
• Troubleshoot integration hurdles and guide customers through complex configuration decisions.
• Serve as a subject matter expert on the broader integration ecosystem, collaborating with Sales, Product, and partners to close gaps.
• Create and maintain internal documentation, playbooks, and lightweight tooling for integration-heavy use cases.
• Channel customer pain points and feedback into Product and Engineering to influence roadmap.

Skills

ERP integrations

Solution architecture

Cross-functional leadership

Stakeholder management

Technical advisory

API & connectors

Education

Bachelor's degree or equivalent

Job description

Airwallex is seeking an experienced implementation and delivery professional to act as a trusted technical advisor for high-value customer integrations in the UK. You will partner with activation, onboarding, and account management teams to translate requirements into scalable architectures, focusing on ERP, HRIS, and API integrations.

You will collaborate with Sales to define discovery scopes, recommend integration blueprints, and guide customers through complex configuration decisions, while