Remote Junior Conversational AI Engineer (RAG & Voice)

Resolv Global; Colombia; Remote; MXN 240,000 - 420,000; Full time

Job summary

Resolv Global is seeking Junior AI/ML Engineers to build AI agents for customer conversations via voice and chat. You will work on retrieval pipelines, APIs, and integrations behind these systems, turning prototypes into reliable production solutions.

Join a team that collaborates with CX designers, operations, and full-stack engineers to deliver practical, secure AI-powered experiences. English and Spanish proficiency are required, with eligibility for remote work from Colombia or Mexico.

Qualifications

• 1–3 years of experience in software engineering or ML engineering.
• Solid Python skills and familiarity with Git, Docker, and basic SQL.
• Experience with at least one cloud platform: Microsoft Azure, AWS, or Google Cloud.
• Hands-on experience with an LLM API, such as OpenAI, Anthropic, Gemini, or Azure OpenAI.
• Experience building an AI agent that calls tools or APIs, using a framework such as LangChain, LangGraph, or Semantic Kernel.
• Experience building a RAG pipeline, including document chunking, embeddings, vector search, and retrieval tuning.
• Experience building and consuming REST APIs, including authentication, rate limits, and versioning, with some exposure to API gateways.
• Experience connecting systems through webhooks, SDKs, or message queues, such as integrating an application with a CRM or database.
• Understanding of ML fundamentals, including embeddings, train/test splits, and evaluation metrics such as precision and recall.
• Professional written and spoken English and Spanish.
• Based in Colombia or Mexico.

Responsibilities

• Build AI agents: Develop conversational agents that interact with users, call tools and APIs, and hand conversations off to human agents when needed.
• Develop retrieval pipelines: Build retrieval-augmented generation (RAG) pipelines that help AI agents answer questions using approved information sources.
• Integrate systems: Connect AI agents with CRMs, ticketing systems, databases, and messaging channels.
• Build and manage APIs: Work with API gateways, authentication, rate limits, and versioning.
• Support voice AI development: Help build voice agents using speech-to-text, large language models (LLMs), and text-to-speech in English and Spanish.
• Test and improve quality: Use evaluations, automated tests, and guardrails to improve accuracy, reliability, and safety.
• Support deployment and monitoring: Ship and maintain solutions through CI/CD, monitoring, and documentation.
• Collaborate across teams: Work with engineering, CX design, and operations colleagues to turn prototypes into production-ready solutions.

Skills

Python programming

English and Spanish

Cloud platforms

Tools

Git

Docker

SQL

REST APIs

LangChain

LangGraph

Semantic Kernel

Job description

Resolv Global is seeking Junior AI/ML Engineers to build AI agents for customer conversations via voice and chat. You will work on retrieval pipelines, APIs, and integrations behind these systems, turning prototypes into reliable production solutions.

Join a team that collaborates with CX designers, operations, and full-stack engineers to deliver practical, secure AI-powered experiences. English and Spanish proficiency are required, with eligibility for remote work from Colombia or Mexico.