Senior Solutions Engineer

Salary: £45,000 - 70,000 per year

Requirements:

• Bachelors 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.

Technologies:

• AI
• API
• Embedded
• ERP
• Support
• Web
• Oracle
• SAP
• Salesforce

More:

We are Airwallex, a unified payments and financial platform for global businesses, helping more than 250,000 companies worldwide manage business accounts, payments, spend management, treasury, and embedded finance at scale. Founded in Melbourne, we have a team of more than 2,300 people across 27 offices globally and are backed by leading investors. Our Merchant Services team works with customers to help them realise their full potential through Airwallex products, and our Spend and card implementation specialists sit at the heart of how customers design, launch, and scale global spend programmes. This Senior Solutions Engineer role is based in London with three days in the office and covers implementation work across EMEA. We value founder-like energy, ownership, collaboration, curiosity, and using AI to work smarter, and we are committed to equal opportunity and building an inclusive workplace.

last updated 35 week of 2026