Backend Engineer Sr

Join the Fintech Revolution

Build the future of finance in Mexico!

About Us

We are the leading fintech technology company in Mexico, empowering over 70,000 clients to achieve their dreams. Our mission is to support small and medium-sized businesses in the country with innovative solutions (financing, credit card, and payments) to overcome their challenges and become the engines of economic growth. We aim to be the ideal partner for entrepreneurs, contributing to the development of the community, the country, and the planet.

Your Challenge

Design and develop secure, efficient, and scalable backend solutions in a microservices environment, utilizing AWS services and modern development practices. Responsible for creating and optimizing high-performance APIs for high-load environments, ensuring agile and secure data access through intuitive endpoints.

What We Are Looking For

• Bachelor's degree or engineering in Information Systems or related field.
• 6+ years of experience as a software developer with a focus on scalable distributed systems.
• Experience in Python (FastAPI, Flask, Django) and JavaScript (Node.js, TypeScript).
• Solid knowledge of AWS services and best practices in cloud architecture.
• Extensive experience in database design, performance tuning, and optimization (PostgreSQL, MySQL, MongoDB, DynamoDB).
• Strong understanding of API design principles, authentication (OAuth, JWT), and security best practices.
• Experience with Docker, Kubernetes, and Infrastructure as Code (Terraform, CloudFormation).
• Strong experience in CI/CD pipelines using GitHub Actions, GitLab CI, or similar tools.
• Ability to work in high-load and mission-critical environments (experience in fintech or large-scale platforms is a plus).

Responsibilities

• Design and develop scalable, resilient, and high-performance microservices architectures.
• Leverage AWS services (Lambda, ECS, S3, DynamoDB, RDS, etc.) to build cloud-native applications.
• Implement and optimize APIs (REST, GraphQL, gRPC) with a focus on performance and security.
• Work with relational (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB) databases, ensuring optimal performance and scalability.
• Design and maintain CI/CD pipelines to streamline deployment and automation.
• Apply best practices in system reliability, observability, and monitoring to ensure high availability.
• Collaborate with cross-functional teams (product, design, DevOps) to deliver high-quality solutions.
• Lead technical discussions and mentor junior engineers.

What We Offer

• A dynamic and collaborative work environment where you can develop your potential to the fullest.
• Opportunities to learn and grow professionally using cutting-edge technologies.
• A passionate and talented team where you can share knowledge and experiences.
• Competitive compensation package and attractive benefits.
• The chance to positively impact the lives of thousands of people and contribute to the country's development.