Product Integration Engineer

Remote (U.S.) — Contract-to-Hire

The Cari Network is building a blockchain-based payment system powering real-time, 24/7 movement of digital money across the traditional finance and digital asset ecosystems. A pre-launch startup, we're creating an entirely new category of financial infrastructure that brings cash on chain through tokenization while powering the full spectrum of payments for our network—banks, digital asset exchanges, and, most importantly, the customers they serve.

We are seeking a Product Integration Engineer on the Product team to be the hands-on technical partner who guides our bank partners from "signed" to "fully integrated and live." You will sit with each bank's engineering, operations, and digital channels teams and translate Cari's product surface—our integration APIs, the Cari Wallet end-user experience, and the admin portal—into a working integration on their stack. You own the build: the discovery, the integration design, the sandbox flows, and the day-to-day technical guidance that gets a bank to production.

About the Role

This is a high-impact, hands-on role for someone who is 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 be the ongoing technical point of contact for each integrating bank's technical teams—mapping their core systems and digital banking platforms to Cari's architecture, guiding them through API integrations, advising on embedding the Cari Wallet into their customer channels, and enabling their operations teams to run day-to-day on the Network’s admin portal.

This is a deeply cross-functional role. Reporting directly to the Chief Product Officer, you will work day-to-day across Product, Engineering, Risk and Compliance, and Operations internally—and across each bank's engineering, operations, treasury, and digital channels teams externally. You will support the integration of our product platform in our bank partners’ environments while also understanding and adding their needs to the roadmap. This role is not suited to candidates expecting a mature playbook to inherit; you will help build the integration practice—reference flows, test plans, and documentation—from the ground up as the Network scales from its first Design Partner Banks to broad participation.

This is a contract-to-hire role, with the intent to convert to a full-time position based on fit and performance.

What You'll Do

  • Guide CAPI Integration End-to-End: Lead bank engineering teams through their integration with the Cari 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.

  • Advise on Cari Wallet Experience Delivery: Partner with banks adopting the Cari 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 the technical and UX considerations of bringing the wallet to their customers.

  • Enable Operations on Cari Hub: Advise bank administrators and operations teams on using the Cari Hub portal day-to-day, including role and access setup so the right teams can operate, monitor, and self-serve.

  • Own the Path to Live: Serve as the primary, ongoing technical point of contact for each bank's technical teams. Run structured discovery to understand their goals and constraints, develop a bank-specific integration plan, surface integration risks before they become blockers, resolve integration issues, and own technical escalations through to production go-live.

  • Feed Learnings Back Into the Product: Bring field feedback to Product and Engineering on a regular cadence—what banks are asking for, blocking on, or confused by—and translate integration friction, workflow gaps, and technical constraints into actionable product input that shapes the roadmap.

  • Build the Integration Practice: Create the reusable artifacts that turn one-off engagements into a scalable practice—reference integrations, integration guides, runbooks, test plans, and a growing knowledge base of common patterns, questions, and approaches. Help establish how Cari brings every new bank to live.

Qualifications

  • 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—ideally serving banks, other regulated financial institutions, or fintech infrastructure

  • 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, and to lead technical conversations with engineering, operations, and treasury stakeholders at the same table

  • A highly collaborative, cross-functional operator—comfortable working across Product, Engineering, Risk, and Operations internally and across multiple bank teams externally, and translating fluently between technical and business audiences

  • 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 where the work is demanding, creative, and consequential, and where the playbook is still being written

  • Experience with stablecoins or blockchain-driven use cases in regulated finance is a significant plus

What We Offer

  • Competitive compensation

  • Remote-first work environment

  • Opportunity to shape a market-defining protocol with an experienced founding team

  • Meaningful influence over product design at the earliest stage

Interested in this role? Send us your resume.

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