Sr. Backend Engineer

Remote, USA
Posted Jun 13, 2026
Full-time

Hello! We’re Cashea 👋, and we're on a mission to bring optimism back to Venezuelans 🇻🇪 by building innovative financial products. Since our launch in 2022, we've been dedicated to democratizing financial inclusion through cutting-edge technology. In that time, we've grown to serve over 6 million customers, developed a range of products for both consumers and merchants, and become a trusted name in Venezuela—winning both minds and hearts 💛.

About the role
As a Senior Backend Engineer, you will design and develop scalable backend services using Node.js and NestJS, create and maintain high-performance RESTful APIs, and implement automated tests to ensure software quality. You'll manage relational databases, particularly PostgreSQL, collaborate on system design, and actively participate in code reviews to enhance development processes. Additionally, you'll oversee optimal service performance, manage production deployments, and mentor junior developers. You’ll lead technical discussions, establish best practices, and promote a culture of continuous learning and improvement in a dynamic startup environment.

Overall you will...
Design and develop robust, scalable backend services using Node.js and NestJS (Express)

Create and maintain high-performance RESTful APIs

Implement automated tests to ensure software quality and reliability

Manage relational databases, preferably PostgreSQL

Collaborate on system design and architecture

Actively participate in code reviews and continuous improvement of our development processes

Ensure optimal service performance and manage production deployments

Handle multiple tasks simultaneously, allowing quick rotation between them in a dynamic startup environment

Mentor junior developers and provide technical guidance to the team

Lead technical discussions and help establish best practices

Share knowledge through pair programming and code reviews

Foster a culture of continuous learning and improvement

Qualifications
Bachelor's degree in Computer Science or related fields, or equivalent experience and 3+ years of experience in the field

Solid experience in backend development with Node.js and NestJS (Express)

Proven experience in creating and managing RESTful APIs

Advanced knowledge of relational databases, preferably PostgreSQL

Experience implementing unit and integration tests

Familiarity with design principles and architectural patterns

Experience in deploying services and managing their performance plus independence for feature delivery in a dynamic startup context

Track record of successfully mentoring junior developers

Ability to communicate complex technical concepts clearly

Experience in establishing development standards and best practices

Excellent problem-solving abilities and analytical thinking

Ability to work in a team and communicate effectively

Self-taught nature with a strong interest in the latest technological trends

Desirable skills:
Experience with cloud computing platforms, specifically Google Cloud Platform (GCP)

Knowledge of containers and orchestration, such as Docker and Kubernetes

Experience with messaging and queuing systems like RabbitMQ/Kafka/PubSub

Spanish and English proficiency

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