Technical Solutions Engineer
About This Role
As fintechs and financial institutions integrate with the Polygon Open Money Stack, integration quality increasingly determines how quickly partners reach production. Today, many partner integration questions are routed to Engineering, which slows product development and leads to repeated work. The Technical Solutions Engineer will own the technical experience of building on Polygon — including API and integration documentation, the integration path, technical support during the sales process, and bringing signed partners to production.
What You'll Be Doing
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 let developers, including those using AI coding tools, integrate independently.
Act as the primary technical resource in sales conversations alongside Business Development and throughout partner integrations, then document solutions so they can be reused.
Lead signed partners through requirements intake, provisioning following KYB and KYC approval, sandbox testing, webhook configuration, and go-live validation, working 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 to 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 We're Looking For
Hands-on experience with US payments, including ACH, RTP, wire transfers, card networks, or equivalent rails, along with 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; 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, using tools such as Postman, Bruno, or Datadog.
Excellent technical writing ability, with experience documenting 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.
Bonus Points
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 at the forefront of the Web3 revolution, dedicated to building and scaling the Polygon network – a leading platform for blockchain development. We empower developers and enterprises to create and deploy dApps, NFTs, and decentralized protocols with speed, security, and affordability. Our mission is to accelerate global Web3 adoption by enhancing the scalability and user experience of Ethereum, making blockchain technology accessible and impactful for everyone. We are committed to fostering a robust, interconnected ecosystem where innovation thrives and decentralized solutions become mainstream. Our culture thrives on innovation, transparency, and a deeply collaborative spirit. We are a globally distributed team of passionate builders, researchers, and visionaries, united by a shared belief in the transformative potential of blockchain technology. At Polygon Labs, you'll be part of an environment that champions open source, encourages bold ideas, and values continuous learning. We prioritize empowering our team members to take ownership, experiment, and contribute meaningfully to the evolution of the decentralized web. Join Polygon Labs and shape the future of Web3. This is an unparalleled opportunity to work on cutting-edge blockchain infrastructure, contributing to solutions that onboard millions into the decentralized economy. If you are driven by impact, eager to solve complex challenges, and aspire to build world-changing technology in a dynamic, crypto-native environment, Polygon Labs offers a unique platform to advance your career and leave a lasting mark on the blockchain industry. Come build with us!
Ready to Apply?
To submit your application for this position, please visit Polygon Labs's official website and follow their application process.