Technical Solutions Engineer - Polygon

About the role

As a Senior Technical Solutions Engineer at Polygon, you will focus on improving the API and integration documentation for partners using the Polygon Open Money Stack. This role involves collaborating with Product, Engineering, and Business Development teams to ensure a seamless integration experience, which is crucial for the company's mission to facilitate efficient, on-chain financial transactions.

Your responsibilities will include creating quickstart guides, sample code, and demo environments while serving as a technical resource during sales and partner integrations. You will also analyze API usage and provide feedback to enhance the platform, ensuring it remains robust and user-friendly as it evolves.

Skills that matter here

• API: You will manage API documentation and support partner integrations.
• integration: The role requires building self-serve integration tools for developers.
• payments: Experience with US payments systems is essential for understanding partner needs.
• fintech: Your background in fintech will support the integration of complex financial systems.
• technical writing: You will create clear documentation for external developers.
• AI tools: Regular use of AI tools will help automate and streamline processes.

Who this role suits

• You have a strong background in fintech or payments, particularly with API integrations.
• You enjoy working in fast-paced environments and can adapt to evolving documentation and platform features.
• Your technical writing skills allow you to clearly communicate complex information.
• You are comfortable collaborating with diverse teams and engaging with partners throughout the integration process.

From the employer

Responsibilities

• API and integration documentation: Own the accuracy, completeness, and clarity of Polygon’s API and integration documentation, and keep it current as the platform evolves.
• Self-serve integration: Build quickstarts, sample code, and reference architectures that enable developers, including those using AI coding tools, to integrate independently.
• Technical expertise: Serve as the primary technical resource in sales conversations alongside Business Development and throughout partner integrations, then document solutions so they’re reusable.
• Partner go-live: Lead signed partners through requirements intake, provisioning following KYB and KYC approval, sandbox testing, webhook configuration, and go-live validation, in partnership with Integration Delivery.
• Platform knowledge: Develop deep expertise across ramps and bank rails, wallets and accounts, custodial and non-custodial flows, virtual accounts, deposit addresses, cross-chain movement, and webhooks.
• Demos and enablement: Build sample applications and demo environments that support Business Development and Sales.
• Product feedback: Identify gaps in the API and integration experience, and turn them into clear, prioritized recommendations for Product and Engineering.
• Automation: Use AI and internal tooling to streamline onboarding, provisioning, and frontline support.

Requirements

• Hands-on experience with US payments, including ACH, RTP, wire transfers, card networks, or equivalent rails, and a working understanding of settlement and reconciliation.
• Experience in one of the following:
• Leading customer API integrations from kickoff to production at a payments, fintech, or financial infrastructure company
• Owning API documentation, SDKs, or developer support at an API-first payments company
• Strong API and troubleshooting skills, including reading logs, debugging webhooks, and reasoning through authentication and retry behavior, with tools such as Postman, Bruno, or Datadog.
• Excellent technical writing, with the ability to document complex systems clearly for external developers.
• Regular use of AI tools to build, document, and automate work.
• Comfort operating in a fast-moving environment where the platform and documentation are actively evolving.

Why Join

Cross-border payments remain slow, expensive, and opaque. Polygon is bringing regulated fiat access, wallets, and onchain settlement together into one integrated stack, and partners are building on it today. In this role, you’ll work closely with Product, Engineering, and Business Development leadership and set the standard for how partners integrate with Polygon.