Sr. Backend Engineer

Hello! We're Cashea 👋, and we're on a mission to give Venezuelans back the opportunity to access credit through a BNPL business model. Since our launch in 2022, we've been dedicated to promoting financial inclusion. Today we have more than 9 million active users, both consumers and merchants, and we've become a trusted brand in Venezuela, winning hearts and minds 💛.

# About the role

We're looking for a Senior Backend Engineer who owns systems, not just services. You'll design the backend that moves money for millions of people — which means correctness, resilience, and performance aren't nice-to-haves, they're the job. You'll work close to Product and to other engineering teams, shaping how our platform scales as we grow. This is hands-on: you'll write code, make architectural calls, and be on the hook for how your services behave in production. The growth path here rewards engineers who go deep, raise the bar around them, and make the system better than they found it.

# Overall you will...

• Design and build robust, scalable backend services in Node.js and NestJS (Express).
• Create and maintain high-performance RESTful APIs that other teams can build on with confidence.
• Build for financial correctness — idempotency, reconciliation, retries, and well-defined failure states.
• Model and manage relational data, primarily in PostgreSQL, with performance and integrity in mind.
• Make architectural and system-design decisions, and own the trade-offs behind them.
• Ensure optimal service performance and own production deployments end-to-end.
• Raise the engineering bar through code reviews, pairing, and clear technical standards.
• Mentor engineers and lead technical discussions, leaving the team stronger than you found it.
• Move fast across multiple workstreams in a dynamic, high-growth startup environment.