Senior Fullstack AI Engineer

Location: Uruguay; 100% remote work

Compensation: Competitive pay in USD

Company

hirify.global provides nearshore staff augmentation and technology solutions for startups and established companies, partnering primarily with U.S. organizations.

What you will do

• Architect and ship end-to-end features for a context-aware AI agent platform.
• Design REST and GraphQL APIs, performant PostgreSQL data models, and resilient asynchronous background job systems.
• Build responsive React interfaces integrated with TypeScript backend services.
• Implement, evaluate, and optimize LLM agent workflows, including prompt engineering, tool integration, retrieval architectures, and runtime execution.
• Maintain production reliability, observability, data privacy boundaries, and robust handling of complex edge cases.

Requirements

• Strong professional experience with modern TypeScript, React, REST and GraphQL APIs, and relational database design with PostgreSQL.
• Experience building asynchronous background jobs, distributed queues, and production-level debugging workflows.
• Hands-on experience or deep technical fluency in LLM and agent runtime architectures, tool calling, prompt engineering, and retrieval systems such as RAG.
• Ability to translate ambiguous product requirements and user behavior into clean system designs and polished user interfaces.
• Strong focus on system correctness, data security, privacy boundaries, observability, and edge-case handling.

Nice to have

• Experience in fast-paced startup environments.
• Experience with LLM evaluations or fine-tuning.
• Experience building multi-channel conversational tools, persistent memory systems, or agentic workflow platforms.

Culture & Benefits

• 100% remote work with a laptop and reliable internet connection.
• Paid time off and a focus on well-being and work-life balance.
• Autonomy to manage working time based on results.
• Projects with leading U.S. companies and collaboration with a global network of more than 600 professionals across 25+ countries.
• Collaboration with experienced senior professionals and multicultural teams.