Lead AI Engineer

1 dia atrás


São Paulo, São Paulo, Brasil Sierra Studio Tempo inteiro US$60.000 - US$80.000 por ano

About Sierra Studio

Sierra Studio is an AI engineering studio and startup incubator – we turn our customers' ideas into reality We're based in Los Angeles, but our teammates live all around the world. We create products across all areas of software — from web and mobile apps to cutting-edge work at the forefront of AI and large language models.

About The Role

As a Lead AI Engineer, you'll lead engineering for one or more AI initiatives at Sierra. You'll architect the stack, prompt engineer LLMs to solve real world problems, and work with your teammates to do whatever it takes to ship great products. You'll work closely with product managers, designers, and other engineers to take products from idea to production. As an early employee at a startup, you'll also be part of creating our culture

Here's a taste of what you could do at Sierra

  • Client projects: Work with a startup founder to build the MVP of their idea
  • Internal projects: Build an internal AI tool to transform our own workflows
  • Hiring: Help us grow our team and interview future candidates
  • Leadership: Mentor other engineers to level up our team

Who We're Looking For

We're looking for a lead engineer who has experience building great products with LLMs, whether that's at work or on personal projects.

LLMs & AI

  • You've built something cool with LLMs, whether it was for work or a personal project
  • Experience with prompt engineering, RAG, and agentic patterns
  • Experience building evals for LLM-powered products
  • Growth mindset: Ability to quickly learn new skills in the AI space
  • Strong curiosity about AI and the impact of LLMs

Leadership

  • Ability to lead the technical direction of products from idea to production
  • Ability to work effectively with product, design, and other partners
  • Ability to contribute to multiple projects at the same time
  • Very strong written + verbal communicator in English

Software engineering

  • Backend: Either Python (e.g. FastAPI) or TypeScript experience is nice to have

Bonus skills – nice to have

  • Experience with finetuning LLMs
  • Staying up to date with latest research papers in AI
  • Uses AI tools (Cursor, Claude Code, etc) to supercharge your own coding workflow
  • You have interesting personal projects you can share with us

Our culture

  • : We look to magnify our strengths, take chances, and always learn from our mistakes.
  • : We keep our egos out of the workplace and support each other when trying new things.
  • : We care deeply about our customers and clients and always keep their needs top of mind. We build tech to solve real problems.
  • : We take initiative, even when it is "not our job." As a startup, we all wear lots of hats.

Why join us?

At Sierra Studio, we believe in nurturing talent and creating good vibes at work. We seek inclusion and embrace our differences. We're all about "growth mindset", and we look to magnify our strengths, take chances, and always learn from our mistakes. We don't fit our teammates into boxes, and instead we understand that each person has their own unique set of skills that they bring to the table. If you join us, we'll embrace who you are today, and give you the space and tools to keep growing.

Salary Range: $60,000 - $80,000 annually.

Your exact compensation will be determined based on a variety of factors that reflect your individual qualifications and how they align with the needs of the role.

Job Type: Full-time

Pay: R$30, R$40,000.00 per month



  • São Paulo, São Paulo, Brasil Thoughtful AI Tempo inteiro R$70.000 - R$120.000 por ano

    Join Our Mission to Revolutionize HealthcareThoughtful is pioneering a new approach to automation for all healthcare providers Our AI-powered Revenue Cycle Automation platform enables the healthcare industry to automate and improve its core business operations.We're looking for an Exceptional Forward Deployed Engineer to join our team.As a key member of our...

  • Full Stack Engineer

    1 semana atrás


    São Paulo, São Paulo, Brasil Odin AI Tempo inteiro R$190.000 - R$443.721 por ano

    Join Odin AI as a Senior Full Stack EngineerUnlock the power of AI with Odin AI – your all-in-one solution for personalized content generation,chatbot interaction, document collaboration, and actionable insights. Transform your businessintelligence, marketing, research, and productivity needs with Odin's cutting-edge capabilities. Explorelimitless...

  • AI/ML Engineer

    2 semanas atrás


    São Paulo, São Paulo, Brasil Perform Tempo inteiro R$120.000 - R$150.000 por ano

    As the  AI/ML Engineer, you'll lead the development of our core machine learning systems. You'll fine-tune large language models (LLMs), build NLP pipelines, automate insurance workflows, and implement user feedback loops for continual model improvement.This is a role for someone who's not afraid of ambiguity, gets energy from building things that don't...


  • São Paulo, São Paulo, Brasil CloudWalk, Inc. Tempo inteiro US$150.000 - US$200.000 por ano

    About CloudWalk:We are not just another fintech unicorn. We are a pack of dreamers, makers, and tech enthusiasts building the future of payments. With millions of happy customers and a hunger for innovation, we're now expanding our neural network - literally and metaphorically.About The RoleDo you speak AI fluently? Do you know how to train Large Language...


  • São Paulo, São Paulo, Brasil Kimberly-Clark Tempo inteiro US$104.000 - US$130.878 por ano

    Job DescriptionYou were made to do this work: designing new technologies, diving into data, optimizing digital experiences, and constantly developing better, faster ways to get results. You want to be part of a performance culture dedicated to building technology for a purpose that matters. You want to work in an environment that promotes sustainability,...

  • Data/AI Engineer

    1 semana atrás


    São Paulo, São Paulo, Brasil ablel Tempo inteiro R$90.000 - R$120.000 por ano

    We're looking for afractional Data/AI Specialistto partner with our sales team on anhourly/contract basis. In this role, you'll act as thetechnical expert during sales cycles, helping prospects understand the value of our data-driven solutions and guiding them toward the right implementation approach. This position is primarily remote, but will requireonsite...

  • AI Engineer

    Há 3 dias


    São Paulo, São Paulo, Brasil Minds Digital Tempo inteiro R$60.000 - R$120.000 por ano

    A Minds Digital é a Voice IDtech pioneira em biometria de voz para identificação e prevenção de fraudes, no Brasil. Fundada em 2017, a empresa oferece soluções antifraudes com alto nível de confiança e agilidade na autenticação de pessoas, em diferentes canais. Com algoritmos próprios, a inteligência artificial autentica a voz em até 1 segundo,...

  • Lead Data Engineer

    1 dia atrás


    São Paulo, São Paulo, Brasil Martelo Tempo inteiro R$360.000 por ano

    Martelo is an early-stage, fast-moving startup redefining how data intelligence powers the U.S. construction industry. Our mission is to transform messy, fragmented property and permit data into clear, actionable insights that help manufacturers, contractors, architects, and specifiers make faster and smarter decisions. With our MVP, we're building the...

  • Analytics Engineer

    1 semana atrás


    São Paulo, São Paulo, Brasil Darwin AI Tempo inteiro R$90.000 - R$120.000 por ano

    About Darwin AI:Darwin AI is transforming the way businesses interact with their customers by deploying AI-powered agents that enhance customer experience and streamline operations. We are a fast-growing company with a strong presence in Latin America, and we are looking for talented individuals to join our team.Role Overview:We are seeking a Semi-Senior...

  • AI Engineer

    Há 6 dias


    São Paulo, São Paulo, Brasil JuntosRH Tempo inteiro R$80.000 - R$120.000 por ano

    AI EngineerObjetivo da posição:Atuar no desenvolvimento e manutenção de uma plataforma de Inteligência Artificial que dá vida a diversos produtos e inovações. O desafio envolve projetar e implementar soluções escaláveis, garantindo qualidade, resiliência e impacto real no negócio, em colaboração com times...