Product Integration Engineer

Skills

About the Role

You will be the hands-on technical partner who guides bank partners from signed to fully integrated and live. You will sit with each bank's engineering, operations, and digital channels teams and translate the product surface—integration APIs, the Cari Wallet end-user experience, and the admin portal—into a working integration on their stack. You will own the build: discovery, integration design, sandbox flows, and day-to-day technical guidance that gets a bank to production. You will be equally comfortable in an API spec, in a sandbox debugging a webhook, and in front of a bank's treasury and operations leads explaining how tokenized deposits move. You will act as the ongoing technical point of contact for each integrating bank's technical teams, mapping their core systems and digital banking platforms to the network's architecture, guiding them through API integrations, advising on embedding the wallet into their customer channels, and enabling their operations teams to run day-to-day on the admin portal. You will report directly to the Chief Product Officer and work across Product, Engineering, Risk and Compliance, and Operations internally, and across each bank's engineering, operations, treasury, and digital channels teams externally. You will help build the integration practice—reference flows, test plans, and documentation—from the ground up as the network scales.

Requirements

• U.S.-based, with ability to travel up to 25%
• Bachelor's degree or equivalent practical experience
• 5+ years in integration engineering, solutions engineering, technical implementation, or developer-facing professional services
• Strong, hands-on technical fluency with RESTful APIs
• Ability to write code (in programming languages like Javascript) and quickly debug user code snippets
• A customer-first, consultative approach able to map a partner's business and technical requirements into a reliable integration
• A highly collaborative, cross-functional operator comfortable working across Product, Engineering, Risk, and Operations
• Strong technical writing skills with a track record of producing clear integration guidance, documentation, and runbooks
• Working knowledge of how money moves between institutions and how banks integrate new payment rails
• Familiarity with message standards (ISO 20022) is a strong plus
• Familiarity with major bank cores and digital banking platforms is a plus
• Comfort operating in an early-stage environment
• Experience with stablecoins or blockchain-driven use cases in regulated finance is a significant plus

Responsibilities

• Lead bank engineering teams through integration with the API integration layer from high-level architecture down to the request payload
• Advise on authentication, idempotency, webhook handling, error and retry behavior, and reconciliation
• Build and demonstrate proof-of-concept integrations
• Create bank-specific test plans and walk teams through full workflows in sandbox
• Partner with banks adopting the wallet to plan how the end-user experience integrates into their digital banking channels and platforms
• Advise on customer and wallet provisioning, wallet and account state handling, and technical and UX considerations
• Advise bank administrators and operations teams on using the admin portal day-to-day, including role and access setup
• Serve as the primary ongoing technical point of contact for each bank's technical teams
• Run structured discovery to understand goals and constraints and develop bank-specific integration plans
• Surface integration risks before they become blockers and resolve integration issues
• Own technical escalations through to production go-live
• Bring field feedback to Product and Engineering on a regular cadence
• Translate integration friction, workflow gaps, and technical constraints into actionable product input
• Create reusable artifacts including reference integrations, integration guides, runbooks, and test plans
• Help establish how the company brings every new bank to live

Benefits

• Remote-first work environment