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Fullstack Staff EngineerDEUNA • San Francisco, California, United States
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Fullstack Staff Engineer

DEUNA
  • US
    San Francisco, California, United States
  • US
    San Francisco, California, United States
Jetzt Bewerben

Über

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
Fullstack Staff Engineer
to serve as a senior technical authority across our engineering organization. This role is designed for a highly experienced engineer who operates at a strategic level, shaping architecture, driving technical standards, and solving complex cross-domain problems. Unlike an Engineering Manager, this role is not focused on people management. Instead, you will act as a
technical leader and architectural reference , influencing multiple teams and ensuring long-term scalability, reliability, and engineering excellence. You will thrive in a high-autonomy, fast-moving startup environment where technical decisions have direct product and business impact. Key Responsibilities
Technical Leadership & Architecture
Define and evolve fullstack architecture across frontend and backend systems. Lead complex system design initiatives, ensuring scalability, performance, and maintainability. Establish and enforce engineering standards and best practices. Drive technical alignment across teams.
Hands-On Development
Contribute directly to critical parts of the codebase. Write scalable, production-ready, well-tested code. Lead major refactors and performance optimizations. Review code and provide deep technical guidance.
Cross-Team Impact
Partner with Product and Engineering leaders to evaluate trade-offs between scalability, security, cost, and speed. Design APIs, database schemas, caching strategies, and distributed systems. Guide teams in handling edge cases, failure scenarios, and observability.
Technical Strategy & Innovation
Identify architectural bottlenecks and propose scalable improvements. Evaluate new technologies and frameworks. Improve system monitoring, instrumentation, and reliability practices.
Requirements
Extensive experience as a
Senior Engineer, Principal Engineer, or Staff Engineer
in fullstack environments. Strong frontend expertise in:
React, Next.js and TypeScript Strong backend experience with:
Golang and/or Python Deep experience designing distributed systems and scalable APIs. Strong knowledge of: Data structures and algorithms; Design patterns; System design and architectural trade-offs Experience with
AWS
and cloud-native architectures. Experience with SQL and NoSQL databases. Strong debugging, refactoring, and performance optimization skills. Excellent written and verbal communication skills.
Native or fluent English .
Spanish is a plus . Nice to Have
Experience in
payments, fintech, e-commerce, or transaction-heavy platforms . Experience designing high-availability financial systems. Exposure to compliance-sensitive or regulated environments. 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! 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.
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  • San Francisco, California, United States

Sprachkenntnisse

  • English
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