Senior Solutions Engineer - Enterprise Integrations & Spend

Airwallex; Greater London; Hybrid; GBP 45,000 - 70,000; Full time

Job summary

Airwallex, a unified payments and financial platform, seeks a Senior Solutions Engineer to own end-to-end spend and corporate card implementations for enterprise customers across EMEA, based in London with three days in the office. You will translate requirements into actionable plans, coordinate cross-functional teams, and advise customers on scalable integration architectures.

You will collaborate with Sales, Product, and Engineering to improve integration coverage and drive successful

Qualifications

• Bachelor's degree in a related field such as Business, Finance, Engineering, or Information Systems, or equivalent practical experience.
• 5+ years of experience in implementation, onboarding, customer success, or project/program management, delivering complex multi-stakeholder technology or financial services implementations.
• 4+ years of client-facing delivery or professional services experience in a high-paced environment such as SaaS, fintech, consulting, systems integration, or enterprise implementation.
• Proven track record of delivering cross-functional projects with stakeholders at all levels, including C-level executives, technical teams, and operations.
• Exceptional written and verbal communication and presentation skills, including the ability to lead steering meetings, write clear status updates, and influence decisions without direct authority.
• Experience delivering ERP, accounting system, or expense platform implementations and the associated data flows, including GL, cost centres, entities, and card feeds.
• Hands-on experience working with or alongside integration engineers, solution architects, or technical program managers on API-based integrations, including familiarity with common web, SSO, and ERP integration concepts.
• Formal training or certification in project management or agile delivery, such as PMP, PRINCE2, or Scrum Master.
• Experience managing strategic or enterprise accounts as part of a broader account team, including navigating commercial sensitivities while protecting delivery quality and scope.
• Ability to thrive in a fast-moving, ambiguous environment while balancing structured methodologies with pragmatic decision-making.

Responsibilities

• Own the end-to-end delivery of complex Spend and corporate card implementations for enterprise and high-growth customers across EMEA.
• Turn agreed business requirements and solution designs into actionable implementation plans.
• Orchestrate cross-functional teams and external stakeholders to deliver implementations on time, on scope, and to a high quality bar.
• Act as a trusted technical advisor to customers and internal teams on high-value implementations and expansions.
• Shape integration approaches, system configuration, and overall solution design.
• Partner with activation, onboarding, and account management teams to translate customer requirements into scalable architectures, especially where ERP, HRIS, and API integrations are core to the rollout.
• Work with sales teams on technical discovery to understand customer systems, data flows, and workflows, and recommend the best-fit integration blueprint.
• Guide customers through complex configuration decisions and troubleshoot integration hurdles.
• Design robust, maintainable implementations rather than writing code directly.
• Serve as a subject matter expert on the integration ecosystem, collaborating with Sales, Product, and partners to close gaps and improve integration coverage.
• Create and maintain internal documentation, playbooks, and lightweight tooling to help the wider team support integration-heavy use cases at scale.
• Channel customer pain points and integration feedback into Product and Engineering to influence roadmap prioritisation and improve implementation outcomes.

Education

Bachelor's degree in a related field

Job description

Airwallex, a unified payments and financial platform, seeks a Senior Solutions Engineer to own end-to-end spend and corporate card implementations for enterprise customers across EMEA, based in London with three days in the office. You will translate requirements into actionable plans, coordinate cross-functional teams, and advise customers on scalable integration architectures.

You will collaborate with Sales, Product, and Engineering to improve integration coverage and drive successful