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  to learn more about us!

As an 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.

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

  • Test credentials

  • API documentation

  • Integration diagrams

  • Any project-specific technical material

• Define and align a Go-Live Timeline
  :

  • Work with the merchant to break down the project into phases (if needed)

  • Identify key milestones, dependencies, and risks

• Be the merchant’s main technical point of contact during integration:

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

• Own and push timelines
  :

  • Ensure the merchant and internal teams are meeting the project deadlines

  • Actively manage risks, delays, and escalations

• Collaborate closely with the Product and Engineering teams to:

  • Escalate and prioritize integration blockers

  • Follow up on new developments and product features required by the merchant

• Build UAT (User Acceptance Testing) matrices
  :

  • Internal-facing UAT matrices to align Product teams on the development acceptance criteria

  • Merchant-facing UAT matrices to ensure the merchant tests every critical payment flow and use case

• Drive a clean go-live process
  :

  • Monitor launch success

  • Ensure operational readiness of all flows (payment success, failure handling, refunds, tokenization, etc.)

• Post-go-live support
  :

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

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

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

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

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

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

• Experience with UAT planning and test case validation.

• Fluent in Spanish and English
  .

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

• A multicultural team distributed throughout LATAM
• Dynamism, agility and constant innovation
• Being part of a high-impact solution for an entire region
• The best tools and technology to operate
• Being part…