Backend Engineer (Python, SQL)

About The Role

We are seeking a Backend Staff Engineer to serve as a deep technical expert and architectural leader within our organization. This role is pivotal in solving highly complex engineering challenges, scaling distributed systems, and establishing backend engineering standards across the company.

• Design and evolve scalable, secure, and resilient backend systems to support high-traffic, transaction-heavy workloads.
• Architect high-availability APIs and distributed services ensuring optimal performance and reliability.
• Define and implement best practices for system reliability, observability, and performance monitoring.
• Write high-quality, production-grade backend code, leading refactoring efforts and performance improvements.
• Identify system bottlenecks and develop scalable solutions to enhance system efficiency.
• Provide technical guidance across teams, leading complex design discussions and evaluating trade-offs.
• Improve backend development standards, documentation, and testing practices.
• Implement strategies for load balancing, scaling, monitoring, and failure handling to ensure system robustness.
• Enhance system instrumentation and observability to facilitate proactive issue detection and resolution.

Qualifications

• Extensive experience as a Senior Backend Engineer, Principal Engineer, or Staff Engineer.
• Proficiency in Golang and/or Python.
• Deep expertise in distributed systems, API design (REST/GraphQL), and event-driven architectures.
• Strong knowledge of data structures, algorithms, system design, and performance optimization.
• Experience with AWS and cloud-native infrastructure.
• Solid understanding of relational and non-relational databases.
• Experience with caching mechanisms such as Redis and messaging systems.
• Knowledge of security best practices in backend development.
• Excellent communication skills in English; fluency in Spanish is a plus.
• Experience in payments, fintech, or financial infrastructure is desirable.
• Familiarity with transaction processing systems, fraud prevention, payment orchestration, or financial compliance systems is advantageous.

Responsibilities

Design and evolve scalable, secure, and resilient backend systems to support high-traffic, transaction-heavy workloads.
Architect high-availability APIs and distributed services ensuring optimal performance and reliability.
Define and implement best practices for system reliability, observability, and performance monitoring.
Write high-quality, production-grade backend code, leading refactoring efforts and performance improvements.
Identify system bottlenecks and develop scalable solutions to enhance system efficiency.
Provide technical guidance across teams, leading complex design discussions and evaluating trade-offs.
Improve backend development standards, documentation, and testing practices.
Implement strategies for load balancing, scaling, monitoring, and failure handling to ensure system robustness.
Enhance system instrumentation and observability to facilitate proactive issue detection and resolution.

Benefits

• Generous vacation policies and additional paid time off.
• Remote work flexibility, allowing you to work from anywhere.
• Financial support for health insurance, internet, and mobile phone expenses.
• Stock options, giving you ownership in the company's success.
• Access to a learning and development platform for continuous growth.
• Join a multidisciplinary, diverse, and dynamic team committed to innovation.
• Opportunities for professional growth and clear career progression paths.
• Be part of a high-impact solution that is creating the next generation of payments technology.

Equal Opportunity

DEUNA is proud to be an equal opportunity employer. We value and celebrate diversity and inclusion in our workplace. All employment decisions 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 are committed to fostering an inclusive environment where all team members can thrive and contribute to our collective success.