AI Jobs

Find the latest job opportunities in AI and tech

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Character.AI

Software Engineer, Machine Learning Infrastructure

Character.AI provides personalized AI interactions through customizable AI characters for entertainment, learning, and creative tasks.

scienceonsiteNew York City, USMenlo Park, US
$150K - $350K
full-time

Benefits:

  • Top-notch health coverage

  • 401(K) contribution

  • Paid leave (up to 20 weeks)

  • 4 weeks PTO

  • Daily in-office catering & monthly Doordash stipend

Experience Requirements:

  • 4+ years of experience supporting the infrastructure within an ML environment

Other Requirements:

  • Experience in developing tools used to diagnose ML infrastructure problems and failures

  • Experience with cloud platforms (e.g., Compute Engine, Kubernetes, Cloud Storage)

  • Experience working with GPUs

Responsibilities:

  • Provide infrastructure support to our ML research and product

  • Build tooling to diagnose cluster issues and hardware failures

  • Monitor deployments, manage experiments, and generally support our research

  • Maximize GPU allocation and utilization for both serving and training

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Character.AI

Research Engineer, Post-Training (All Industry Levels)

Character.AI provides personalized AI interactions through customizable AI characters for entertainment, learning, and creative tasks.

scienceonsiteNew York City, USMenlo Park, US
$225K - $400K
full-time

Benefits:

  • Top-notch health coverage

  • 401(K) contribution

  • Paid leave (up to 20 weeks)

  • 4 weeks PTO

  • Daily in-office catering & monthly Doordash stipend

Education Requirements:

  • at least PhD (or equivalent) research experience

Other Requirements:

  • Write clear and clean production-facing and training code

  • Experience working with GPUs (training, serving, debugging)

  • Experience with data pipelines and data infrastructure

  • Strong understanding of modern machine learning techniques (reinforcement learning, transformers, etc)

  • Track-record of exceptional research or creative applied ML projects

Responsibilities:

  • Develop alignment algorithms and loss functions

  • Write data pipelines to process diverse web data

  • Identify quality signals to understand our model’s performance

  • Design sampling algorithms to improve serving efficiency

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Character.AI

Research Engineer, Multimodal (All Industry Levels)

Character.AI provides personalized AI interactions through customizable AI characters for entertainment, learning, and creative tasks.

scienceonsiteNew York City, USMenlo Park, US
$225K - $400K
full-time

Benefits:

  • Top-notch health coverage

  • 401(K) contribution

  • Paid leave (up to 20 weeks)

  • 4 weeks PTO

  • Daily in-office catering & monthly Doordash stipend

Education Requirements:

  • preferably 2+ years of industry experience

Other Requirements:

  • Deep understanding of the “whole stack” when it comes to designing, training, evaluating and deploying machine learning models

  • Have a track record of successfully owning projects from start to finish

  • Have experience with generative models for various modalities

  • Experience working with proven tools

  • Experience working with diffusion models

Responsibilities:

  • Determining the type of training data we need

  • Developing new model architectures

  • Creating new evaluations

  • Writing fast inference algorithms

  • Working with product teams to integrate feedback mechanisms into the product

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Character.AI

Staff Software Engineer, Applied ML

Character.AI provides personalized AI interactions through customizable AI characters for entertainment, learning, and creative tasks.

engineeringonsiteMenlo Park, US
$150K - $350K
full-time

Benefits:

  • Top-notch health coverage

  • 401(K) contribution

  • Paid leave (up to 20 weeks)

  • 4 weeks PTO

  • Daily in-office catering & monthly Doordash stipend

Education Requirements:

  • B.A.S. in Computer Science or equivalent experience

Experience Requirements:

  • 5+ years of industry experience

Other Requirements:

  • Experience building/consuming RESTful and gRPC based web-services

  • Experience building and managing infrastructure in a cloud environment (GCP, AWS or Azure)

  • Familiar with one of the popular ML Frameworks like Pytorch, Tensorflow

  • Experience writing highly performant service in a modern typed language

  • Experience configuring and maintaining CI/CD pipelines and automated testing

Responsibilities:

  • Work cross functionally with product, data science, data platform and ML researchers

  • Identify, design and implement the applied ML infra

  • Lead implementation of our ML backend systems

  • Support scaling our existing systems

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Pincites

Founding Backend & Applied AI Engineer

AI-powered contract review tool integrated with Microsoft Word, offering real-time suggestions, redlining, and more.

engineeringhybridSan Francisco, USNew York, USSeattle, USMenlo Park, US
$140K - $195K
full-time

Benefits:

  • Competitive salary

  • Equity

  • Remote work option

Experience Requirements:

  • 3+ years of experience

Responsibilities:

  • Develop and maintain backend infrastructure

  • Build and improve AI models

  • Work with frontend engineers to integrate AI features

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Pincites

Founding Frontend Engineer

AI-powered contract review tool integrated with Microsoft Word, offering real-time suggestions, redlining, and more.

engineeringhybridLos Angeles, USSan Francisco, USMenlo Park, USStanford, US
$140K - $185K
full-time

Benefits:

  • Competitive salary

  • Equity

  • Remote work option

Experience Requirements:

  • 3+ years of experience

Responsibilities:

  • Develop and maintain frontend infrastructure

  • Work with backend engineers to integrate AI features

  • Improve user experience

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