About DEUNA \uD83E\uDDE1
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! \uD83D\uDE80
Visit https://www.deuna.com/ to learn more about us!
We are looking for a Staff Software Engineer – Fullstack to act as a senior technical leader across our engineering organization.
This is a high-impact individual contributor role, focused on driving architecture, setting technical direction, and solving complex, cross-team challenges. You will partner closely with Engineering, Product, and leadership to ensure our systems scale reliably as the business grows.
This role is not focused on people management — instead, you will operate as a technical authority and multiplier, influencing multiple teams and raising the overall engineering bar.
Own and evolve the architecture of critical fullstack systems across frontend and backend.
Lead the design of scalable, high-performance, and resilient distributed systems.
Set and uphold engineering standards, best practices, and design principles.
Drive alignment across teams on architectural decisions and technical direction.
Contribute to high-impact areas of the codebase.
Write clean, maintainable, production-grade code.
Lead complex refactors and performance optimization efforts.
Conduct in-depth code reviews and mentor engineers through technical guidance.
Partner with Product and Engineering leaders to evaluate trade-offs across scalability, performance, cost, and security.
Design APIs, data models, and system interactions that support long-term growth.
Guide teams on handling edge cases, failure scenarios, and observability.
Identify system bottlenecks and drive scalable solutions.
Influence long-term technical strategy and roadmap.
Evaluate and introduce new technologies where they add meaningful value.
Improve monitoring, instrumentation, and system reliability practices.
Proven experience as a Staff, Principal, or Senior Software Engineer in fullstack environments.
Strong frontend expertise with:
Strong backend experience with:
Deep experience designing distributed systems and scalable APIs.
Strong fundamentals in:
Data structures and algorithms
System design and architecture
Design patterns and trade-offs
Hands-on experience with AWS and cloud-native architectures.
Experience with SQL and NoSQL databases.
Strong debugging, performance optimization, and refactoring skills.
Excellent communication skills, with the ability to influence technical decisions.
Fluent or native English (Spanish is a plus).
Experience in payments, fintech, e-commerce, or transaction-heavy platforms.
Experience building high-availability, low-latency systems.
Familiarity with regulated environments (PCI-DSS, financial systems, etc.).
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 \uD83C\uDFDD️
Remote work from anywhere \uD83D\uDCBB
Economic support for health insurance, internet and cell phone line\uD83D\uDCF1\uD83C\uDF10
We all own DEUNA, we offer stock options \uD83D\uDCB8
Learning and development platform \uD83D\uDCDA
Multidisciplinary, diverse and dynamic team \uD83E\uDDE1
Growth and career path \uD83D\uDE80
Be part of a dynamic team that's creating the next generation payments platform.
DEUNA is proud to be an equal opportunity employer. We value and celebrate diversity and inclusion in our workplace. All employment decisions at DEUNA are made without discrimination based on nationality, race, ethnicity, religion, gender, sexual orientation, gender identity or expression, marital status, color, disability, or any other characteristic protected by law.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
