Senior AI Engineer (LLM + Multi-Agent Systems)

Backsie Inc; Belém; Teletrabalho; BRL 370.000 - 530.000; Tempo integral

Resumo da oferta

A forward-thinking tech company based in Brazil is looking for a Senior AI Engineer to lead the development of an emotionally intelligent chatbot. The ideal candidate will have 4–7 years of AI and NLP experience, with proven expertise in LLM fine-tuning. This role is remote with opportunities for future equity in a growing startup aiming to impact mental health positively.

Qualificações

• 4–7 years of experience in AI, NLP, or related fields.
• Proven expertise with LLM fine-tuning and multi-agent orchestration.
• Strong understanding of RAG frameworks and vector databases.

Responsabilidades

• Develop and deploy multi-agent LLM architectures.
• Design AI systems for seamless text and voice interaction.
• Implement RAG pipelines to ensure accuracy.

Conhecimentos

AI expertise

NLP knowledge

LLM fine-tuning

Python proficiency

FastAPI familiarity

AWS experience

Ferramentas

LangChain

OpenAI API

PostgreSQL

Descrição da oferta de emprego

At Backsie Inc (Permanent)

Expires at : 2026-01-26

Remote policy : Global remote

Role Overview

We’re seeking a highly skilled Senior AI Engineer with deep experience using LLMs to power conversational agents. You’ll lead the development of our emotionally intelligent chatbot that helps users navigate personal challenges, identify cognitive distortions, and discover constructive next steps.

Responsibilities

• Develop, fine-tune, and deploy multi-agent LLM architectures for real-time conversational experiences
• Design and optimize low-latency AI systems for seamless text and voice interaction
• Collaborate with backend engineers to structure logic flow and integrate behavioral reasoning layers
• Implement RAG (Retrieval-Augmented Generation) pipelines and safeguard relevance and accuracy
• Prototype, test, and iterate to achieve emotionally attuned and logically coherent responses
• Contribute to product direction, agent orchestration strategies, and upcoming Beta architecture

Requirements

• 4–7 years of experience in AI, NLP, or related fields
• Proven expertise with LLM fine-tuning, LangChain, or OpenAI API orchestration
• Experience with multi-agent orchestration and task distribution
• Strong grasp of RAG frameworks, vector databases, and context retrieval
• Familiarity with Python, FastAPI, PostgreSQL, and AWS preferred
• Deep empathy for user experience and mental health use cases
• Excellent communication and collaborative mindset

Nice to have

• Prior experience in mental health, wellbeing, or human-AI interaction
• Familiarity with CBT / DBT frameworks or emotional reasoning models

Benefits & Perks

We’re building something profoundly human — technology that listens and empowers. You’ll join an early-stage startup with a validated concept, working directly with the founder and core team to prepare for our Beta and Q1 2026 fundraising round.

Why Join Us

The role starts as a contract-to-full-time position with potential equity after fundraising.