Fullstack AI Tech Lead

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!

Role Overview

We are looking for a highly technical and hands-on Fullstack Tech Lead specialized in AI-driven platforms to lead the engineering execution of Athia’s next-generation payment intelligence and digital workforce capabilities.

This role will serve as the technical anchor for the platform, owning the intersection between AI systems, payment orchestration, operational infrastructure, and scalable product delivery. You will work closely with Product, Modeling, Infrastructure, and Operations teams to ensure reliable, secure, and scalable execution of AI-powered workflows across complex payment ecosystems.

The ideal candidate combines strong backend and frontend engineering expertise with technical leadership experience in high-scale environments, preferably within fintech, payments, AI, or infrastructure-heavy startups.

Responsibilities

Core Mandate & Strategic Responsibilities

• Lead the technical architecture and engineering execution for Athia’s AI-driven platform and payment operations ecosystem.
• Develop deep expertise in the existing payments stack, routing logic, and provider integrations to ensure ML outputs are executed reliably, accurately, and with minimal latency.
• Define and implement scalable deployment strategies for both cloud-hosted and on-premise client environments, ensuring secure and efficient data synchronization between systems.
• Own operational connectivity, including monitoring, alerting, observability, and incident response processes, maintaining a seamless feedback loop with operations teams.
• Provide technical leadership around scalability and resiliency to support significant transaction growth projections while preventing downtime and service degradation.
• Partner closely with the Modeling Lead to validate the technical feasibility, performance, and robustness of new AI/ML model implementations and emerging use cases.
• Collaborate with Product Managers and business stakeholders to translate long-term product vision into actionable technical requirements and realistic engineering roadmaps.

Engineering Leadership

• Lead and mentor a team of engineers through architecture decisions, technical planning, and day-to-day execution.
• Drive engineering best practices, including code quality, documentation, testing, observability, and deployment standards.
• Conduct code reviews and provide technical guidance to ensure maintainable, scalable, and secure systems.
• Own technical delivery timelines and help prioritize initiatives based on business impact and engineering complexity.
• Promote a strong engineering culture focused on accountability, collaboration, innovation, and continuous improvement.

Technical Execution

• Design, build, and maintain backend services and distributed systems using Golang and Python.
• Develop scalable frontend applications using React, Next.js, and TypeScript.
• Build and maintain APIs and integrations using RESTful APIs, gRPC, and event-driven architectures.
• Implement automated testing strategies and CI/CD pipelines to ensure reliability and deployment efficiency.
• Ensure adherence to security best practices across application development, infrastructure, and data handling.

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Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in software engineering, with strong backend development expertise.
• At least 2 years of experience in a technical leadership or Tech Lead role.
• Strong hands-on experience with:
  • Golang
  • Python
  • React
  • Next.js
  • TypeScript
• Solid understanding of software architecture, distributed systems, and scalable infrastructure design.
• Experience working with payment systems, fintech platforms, orchestration layers, or high-transaction environments is highly preferred.
• Strong knowledge of RESTful APIs, gRPC, and integration protocols.
• Experience designing cloud-native applications and hybrid/on-prem deployment architectures.
• Proficiency in automated testing, CI/CD, monitoring, and observability tools.
• Familiarity with code review processes and engineering quality standards.
• Strong understanding of security best practices in software development.
• Excellent leadership, collaboration, communication, and stakeholder management skills.
• Comfortable operating in fast-paced startup environments with high ownership and ambiguity.

What will you find when you join DEUNA?

- 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 of the startup culture.

- We are in full expansion!

Benefits:

Vacations and additional PTO 🏝️

Remote work from anywhere 💻

Economic support for health insurance, internet and cell phone line📱🌐

We all own DEUNA, we offer stock options 💸

Learning and development platform 📚

Multidisciplinary, diverse and dynamic team 🧡

Growth and career path 🚀

Be part of a dynamic team that's creating the next generation payments platform.

Join us at DEUNA!