Senior Backend Engineer - TypeScript & AI, Remote

Scale Up Recruiting Partners; San Juan (PR); On-site; USD 120,000 - 170,000; Full time

Job summary

Scale Up Recruiting Partners is seeking a Senior Backend Engineer for a fast-growing AI startup. You will build backend services, data layers, and integrations that power our platform with a focus on scalability and reliability.

This role emphasizes AI-assisted development, modern tooling, and working closely with founders to implement AI-powered workflows in a lean startup environment.

Qualifications

• Strong experience building backend apps with TypeScript.
• Node.js experience in production systems.
• Experience with asynchronous queues and distributed processing.
• Designing scalable backend architectures and data models.
• Experience maintaining multiple third-party integrations.
• Ability to work with inconsistent external APIs and build resilient adapters.
• Strong debugging skills in production environments.
• English written and spoken communication.
• Ability to work independently with minimal supervision.

Responsibilities

• Design, build and maintain scalable backend services using TypeScript.
• Own and improve the platform's data layer and backend runtime.
• Design efficient database schemas and optimize performance.
• Build, maintain and improve integrations with third-party APIs.
• Create adapter layers that normalize external data.
• Debug asynchronous systems, queues and distributed workflows.
• Improve observability and platform reliability.
• Collaborate with founders to implement AI-powered workflows.
• Evaluate and adopt new AI development tools to boost productivity.

Skills

TypeScript backend

Node.js

Async job systems

Backend architectures

Third-party integrations

External API resilience

Debugging production

English communication

Independent working

Browser automation concepts

SQL databases

Tools

Claude Code

OpenAI Codex

Cursor

Job description

Scale Up Recruiting Partners is seeking a Senior Backend Engineer for a fast-growing AI startup. You will build backend services, data layers, and integrations that power our platform with a focus on scalability and reliability.

This role emphasizes AI-assisted development, modern tooling, and working closely with founders to implement AI-powered workflows in a lean startup environment.