Senior Backend Developer, San Juan

What you'll be doing

• Build and scale backend systems that can handle tens of thousands of transactions per second.
• Design clean, well-structured APIs (REST & gRPC) that developers love.
• Work with modern stacks (NestJS, Node.js, Golang, PostgreSQL, DynamoDB, Redis, AWS EKS).
• Solve challenges around scalability, reliability, and security in high-throughput systems.
• Collaborate with product, platform, and security teams in a full-cycle ownership model—you build it, you run it.
• Take part in architecture design, code reviews, and shaping technical decisions that define the platform.
• Participate in a shared on-call rotation to ensure the reliability and availability of critical services (with proper support, tooling, and escalation policies in place).