**Join the Fintech revolution and build the future of finance in Mexico!** **Who are we?** We are the leading financial technology company in Mexico, empowering over 70,000 customers to achieve their dreams. Our mission is to empower small and medium-sized businesses across the country with innovative solutions (financing, credit cards, and payments) to overcome their challenges and turn them into engines of economic growth. We aspire to be the ideal partner for entrepreneurs, contributing to the development of communities, the country, and the planet. **Your challenge:** Design and develop secure, efficient, and scalable backend solutions within a microservices environment using 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 are we looking for?** * Bachelor’s or engineering degree in Information Systems or related field. * 6+ years of experience as a software developer with a focus on scalable distributed systems. * Experience with 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 with CI/CD pipelines using GitHub Actions, GitLab CI, or similar tools. * Ability to work in high-load, 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 databases (PostgreSQL, MySQL) and NoSQL databases (MongoDB, DynamoDB), 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 do we offer?** * A dynamic and collaborative work environment where you can maximize your potential. * Opportunities to learn and grow professionally using cutting-edge technologies. * A passionate and talented team with whom you can share knowledge and experiences. * Competitive compensation package and attractive benefits. * The opportunity to positively impact the lives of thousands of people and contribute to the country's development.