Konfío
Konfío
501 – 1,000 Employees
B2BFinanceFintech

Konfío is a Mexico-based financial technology company focused on helping small and medium-sized businesses access practical financial tools. Its offerings include business loans, corporate credit cards, and payment terminals designed to support day-to-day operations and business growth.

The platform serves SMEs with services such as unsecured corporate financing, automatic invoice reconciliation, and SPEI transfers. Konfío reports having benefited more than 85,000 SMEs by making financial products traditionally associated with larger companies more accessible to growing businesses.

Senior Backend Engineer

Build scalable microservices and APIs on AWS for a Mexican fintech serving more than 100,000 customers.

Description

  • Design and build scalable, resilient, high-performance microservice architectures using AWS services such as Lambda and ECS.
  • Implement and optimize REST, GraphQL, and gRPC APIs for security and performance under heavy load.
  • Write clean, maintainable, efficient code in Python and JavaScript or TypeScript.
  • Manage and optimize relational and NoSQL database schemas across PostgreSQL, MySQL, MongoDB, and DynamoDB.
  • Design and maintain CI/CD pipelines to automate and streamline software releases.
  • Apply reliability, observability, and monitoring practices to support high system availability.
  • Mentor junior engineers.
  • Work with cross-functional product, design, and DevOps teams.

Requirements

  • Bring more than six years of backend engineering experience working with scalable distributed systems.
  • Be proficient in Python with FastAPI, Flask, or Django, or JavaScript with Node.js and TypeScript.
  • Have experience with AWS services including Lambda, ECS, S3, DynamoDB, and RDS.
  • Have experience designing REST, GraphQL, and gRPC APIs.
  • Be experienced with relational and NoSQL databases such as PostgreSQL, MySQL, MongoDB, and DynamoDB.
  • Be able to collaborate across functions and mentor fellow engineers.
  • Bring a problem-solving approach to complex technical challenges, strategic decision-making, and results.
  • Have prior experience in fintech or high-traffic platforms.
  • Be able to implement AI tools to improve workflows.

Benefits

  • Employment through the standard payroll system.
  • Benefits that exceed statutory requirements.
  • Grocery vouchers.
  • Opportunities for career growth within the organization.

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