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Plaid is a financial infrastructure platform that powers connections between millions of users and thousands of financial institutions across the US, Canada, UK, and Europe. The company serves developers, fintechs, lenders, payments platforms, and major financial institutions.
As an Implementation Engineer for Plaid's European Client Engineering team, you will own the technical delivery of customer integrations across the full lifecycle—from contract signature through production launch and ongoing growth. You'll be the technical lead for customers implementing Plaid's payment initiation, account data, verification, and underwriting capabilities on UK Open Banking and PSD2 infrastructure.
Key responsibilities include:
- Owning a portfolio of customer integrations end-to-end, including implementation plans, milestones, and success criteria
- Running scheduled implementation support for standard integrations and targeted debugging engagements
- Leading technical onboarding for existing customers adopting new Plaid products, use cases, or markets
- Debugging integration issues hands-on with customer engineers (API, SDK, OAuth, webhooks)
- Validating sandbox implementations and conducting go-live readiness checks
- Using Plaid's data to proactively identify integration and conversion problems
- Producing written handovers to Account Management and maintaining reusable implementation resources
- Escalating recurring integration failures to Product and Engineering with evidence-backed patterns
You'll work in a small regional team embedded within a globally distributed function, balancing independent ownership with collaboration across Plaid's European offices (London, Amsterdam) and global teams.
Requirements:
- 4+ years in a customer-facing technical role (implementation, integration, solutions engineering, or technical account management), ideally at an API platform
- Hands-on experience with REST APIs, OAuth, webhooks, JSON, and web/mobile SDKs
- Proficiency with Postman or curl; ability to read API documentation critically
- Experience with SQL or other data querying tools
- Track record of owning technical projects end-to-end with real deadlines and direct customer engineer relationships
- Clear written communication skills (plans, handovers, customer updates)
- Comfort working independently in a small regional team
Nice-to-haves:
- Knowledge of open banking (UK Open Banking, PSD2/PSD3, AIS/PIS, VRP)
- Domain expertise in payments, identity verification, or credit/underwriting
- Formal technical background or prior software engineering experience
- Mobile integration experience
- Fluency in a second European language
