Backend Engineer

About this role

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 Open www.deuna.com/ to learn more about us!

Role Overview

We are looking for a Backend Engineer to lead the design and development of scalable backend systems.

This role is focused on building high-quality, reliable services, improving system performance, and guiding engineering teams through technical decisions. You will work closely with Engineering Managers and Product teams to deliver robust backend solutions.

Key Responsibilities

• Backend Development & Architecture
• Design, build, and maintain backend services and APIs.
• Develop scalable and secure distributed systems.
• Define and implement best practices for performance and reliability.
• System Optimization
• Identify and resolve performance bottlenecks.
• Implement improvements in scalability, monitoring, and reliability.
• Design data models, caching strategies, and asynchronous processes.
• Collaboration
• Work closely with Product and Engineering teams.
• Support the delivery of new features and system improvements.
• Ensure alignment between technical solutions and business needs.

Requirements

• 5+ years of experience in backend development.
• Strong experience with:
• Golang and/or Python
• Experience working with:
• Distributed systems
• REST or GraphQL APIs
• Event-driven architectures
• Experience with AWS or similar cloud platforms.
• Knowledge of:
• SQL and NoSQL databases
• Caching (Redis or similar)
• Messaging systems
• Understanding of security best practices.
• Strong problem-solving skills.
• Good communication skills.
• English is a plus.

Nice to Have

• Experience in fintech, payments, or e-commerce platforms.
• Experience with high-traffic systems.
• Knowledge of compliance and security standards.