Implementation Manager

About DEUNA 🧡

DEUNA is a rapidly growing startup revolutionizing global commerce with ATHIA, our AI-powered orchestration and payments platform that helps large enterprises boost approval rates, reduce costs, and unlock new revenue. Built by the team behind DEUNA—the fastest-growing Commerce OS in Latin America—ATHIA combines payment intelligence, checkout optimization, and data orchestration in one powerful solution.

With deep integrations across 300+ PSPs and alternative payment methods, and over 20% of Mexico’s digital economy running through our platform, we simplify global payments through a single integration and centralized reconciliation.

We are a rapidly growing startup expanding into the U.S. to meet the urgent needs of large retailers, marketplaces, airlines, and QSRs. Join us to shape the future of payments! 🚀

Visit https://www.deuna.com/ to learn more about us!

About the Role

As a n Implementation Manager , you will take full ownership of the merchant onboarding and integration journey after pre-sales closes the technical design .

You will prepare integration packages , build go-live plans , answer technical questions , coordinate internal teams for product developments , and ensure high-quality and on-time merchant go-lives .

You will be measured not only by the speed of onboarding but also by the quality of the go-live — making sure every flow, exception, and integration need is correctly addressed and tested.

Responsibilities

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Prepare and deliver a full Statement of Work (SOW) for the merchant, including

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• Test credentials
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• API documentation
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• Integration diagrams
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• Any project-specific technical material
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Define and align a Go-Live Timeline

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• Work with the merchant to break down the project into phases (if needed)
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• Identify key milestones, dependencies, and risks
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Be the merchant’s main technical point of contact during integration

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• Support the merchant’s technical team with questions, troubleshooting, best practices, and clarifications
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Own and push timelines

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• Ensure the merchant and internal teams are meeting the project deadlines
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• Actively manage risks, delays, and escalations
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Collaborate closely with the Product and Engineering teams to

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• Escalate and prioritize integration blockers
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• Follow up on new developments and product features required by the merchant
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Build UAT (User Acceptance Testing) matrices

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• Internal-facing UAT matrices to align Product teams on the development acceptance criteria
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• Merchant-facing UAT matrices to ensure the merchant tests every critical payment flow and use case
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Drive a clean go-live process

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• Monitor launch success
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• Ensure operational readiness of all flows (payment success, failure handling, refunds, tokenization, etc.)
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Post-go-live support

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• Stay engaged for 3 weeks after go-live to ensure stability before handing off the account.

Requirements

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3+ years of experience in technical project management, technical account management, merchant integrations, or technical consulting — preferably in Fintech, Payments, or SaaS companies.

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Strong technical understanding of payment integrations (APIs, SDKs, payment gateways, fraud vendors, alternative payment methods).

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Exceptional project management skills : timeline creation, stakeholder management, risk mitigation.

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Client-facing experience : comfortable leading technical conversations with merchant engineering teams.

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Organized and proactive : capable of running multiple integration projects at the same time.

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Experience with UAT planning and test case validation.

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Fluent in Spanish and English .

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Startup or high-growth tech environment experience is a plus .