Contract: Senior AI Engineer

Upwork

Full-time Computer Occupations
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Location
Brazil, Brazil, Brazil
Posted
June 10, 2026

Job Description

This hybrid engagement supports the development and production hardening of Natural Language Query (NLQ) systems, AI agents, and related applications powering talk-to-data experiences. The work focuses on improving NLQ accuracy and semantic understanding while building robust, scalable, and observable AI systems suitable for enterprise production environments.


This engagement requires senior-level software engineering depth, combined with AI evaluation and semantic modeling expertise, to translate research concepts into reliable, deployable systems.


Work/Project Scope:

  • Design, implement, and maintain production-grade AI services supporting NLQ and AI agent workflows.

  • Evaluate the NLQ system accuracy using quantitative and qualitative methods (precision/recall, semantic correctness, result equivalence).

  • Build automated evaluation pipelines and regression test suites integrated into CI/CD workflows.

  • D...

    • Job Details

    • Job Type
      Full-time
    • Category
      Computer Occupations
    • Date Posted
      June 10, 2026
    • Application Deadline
      July 20, 2026