Technical Solutions Engineer

As a Technical Solutions Engineer at Polygon Labs, you own the technical integration experience for partners building on the Polygon Open Money Stack. You work across API documentation, developer enablement, sales support, and partner go-live to ensure capable developers can integrate with minimal friction. Polygon operates as a US-regulated payments platform licensed in 48 states, and your role shapes how quickly partners reach production.

What you'll do

• Own the accuracy, completeness, and clarity of Polygon's API and integration documentation, keeping it current as the platform evolves
• Build quickstarts, sample code, and reference architectures that enable developers, including those using AI coding tools, to integrate independently
• Serve as the primary technical resource in sales conversations alongside Business Development and throughout partner integrations, then document solutions for reuse
• 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
• 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
• Build sample applications and demo environments that support Business Development and Sales
• Identify gaps in the API and integration experience and turn them into clear, prioritized recommendations for Product and Engineering
• Use AI and internal tooling to streamline onboarding, provisioning, and frontline support

What you bring

• 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 either leading customer API integrations from kickoff to production at a payments, fintech, or financial infrastructure company, or 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

Nice to have

• Experience with stablecoins or digital assets, particularly wallets and onchain settlement
• Experience at an early-stage company, building processes or programs from the ground up
• Enough coding ability to build demo applications
• Experience with documentation platforms such as Mintlify
• Familiarity with KYB and KYC tooling

About Polygon Labs

Polygon Labs is a global blockchain payments company building the Polygon Open Money Stack to move money instantly, reliably, and at internet scale. Operating as a US-regulated payments platform licensed in 48 states, Polygon's infrastructure has facilitated trillions of dollars in onchain value transfer and supported millions of daily transactions for major banks, fintechs, enterprises, and consumer applications.