Full-Time

Software Engineer

Platform/Backend

Posted on 7/19/2023

Refuel.AI

Refuel.AI

11-50 employees

AI platform for dataset generation and annotation

No salary listed

Junior, Mid

San Francisco, CA, USA

Hybrid role with the option to work in San Francisco, CA or remotely.

Hybrid role with the option to work in San Francisco, CA or remotely.

Hybrid role with the option to work in San Francisco, CA or remotely.

Category
Backend Engineering
Software Engineering
Required Skills
Python
Data Analysis
Requirements
  • Experience building large-scale distributed systems
  • Familiarity with Python programming language
  • Strong communication skills
  • Curiosity about the early startup and company building journey
  • Bonus: Experience with data processing technologies or machine learning frameworks
Responsibilities
  • Design and build core backend systems
  • Lead the design and development of information security controls
  • Define and evolve engineering stack
  • Help hire and mentor team members

Refuel.AI provides a platform that uses large language models to help users generate, annotate, and enrich datasets. The platform allows users to specify the types of datasets they need, automating the processes of data creation and labeling. This is especially useful for businesses and researchers who need high-quality labeled datasets for training their AI models. Refuel.AI differentiates itself by simplifying the data preparation process, which helps clients in various industries, such as technology, healthcare, finance, and academia, to speed up their AI development and deployment. The company's goal is to make data preparation more efficient, enabling faster advancements in AI applications.

Company Size

11-50

Company Stage

Seed

Total Funding

$10.5M

Headquarters

San Francisco, California

Founded

2021

Simplify Jobs

Simplify's Take

What believers are saying

  • The rise of synthetic data generation complements Refuel.AI's data annotation services.
  • Demand for domain-specific LLMs opens new opportunities for specialized dataset services.
  • Growing interest in explainable AI enhances demand for transparent data preparation processes.

What critics are saying

  • Increased competition from AI giants like OpenAI and Google in data preparation.
  • Integration challenges with Together AI's systems may delay product development.
  • Rapid AI advancements could render Refuel.AI's offerings obsolete without continuous innovation.

What makes Refuel.AI unique

  • Refuel.AI automates dataset creation and labeling for diverse business use cases.
  • The platform leverages LLMs to generate, annotate, and enrich datasets efficiently.
  • Refuel.AI focuses on transforming unstructured data into structured datasets for AI applications.

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Benefits

Competitive salary & meaningful equity

Health, vision, & dental insurance

Unlimited PTO

Home office setup

Learning & development

Team retreats

Growth & Insights and Company News

Headcount

6 month growth

6%

1 year growth

33%

2 year growth

14%
Together AI
May 16th, 2025
Together AI acquires Refuel.ai to unlock data for developers and businesses building production-grade AI applications

If you speak with the largest enterprises today, they will tell you about the hundreds of AI applications they would like to deploy across their organization. However, they run into a consistent challenge – their data is an unstructured mess and they lack the tooling to easily clean and transform this data – and without the right data, AI applications cannot hope to meet production-level quality.

TechTarget
May 16th, 2025
Together AI Acquires Refuel.ai, $533M Raised

Together AI has acquired Refuel.ai, a startup specializing in transforming unstructured data into structured datasets for AI applications, for an undisclosed amount. Refuel, founded in 2021, has raised about $5.2 million. Together AI, founded in 2022, has raised approximately $533 million, with its latest round in February raising $305 million. The acquisition aims to enhance Together AI's data quality capabilities for generative AI models, with Refuel's LLM-2 now available on Together AI's platform.

Trend Hunter
Oct 17th, 2023
LLM Training Datasets

Refuel.ai Inc. has introduced its Refuel Cloud platform, designed to streamline the preparation of datasets for artificial intelligence (AI) training.

dlvr.it
Jun 21st, 2023
Refuel AI: $5.2 Million Raised To Automate Dataset Creation And Labeling For Every Business

Refuel AI - a platform to automate dataset creation and labeling for every business and every use case - announced recently that it exited from stealth with $5.2 million in seed funding led by General Catalyst and XYZ Ventures.

Finance Info
Jun 21st, 2023
How to fundraise during a VC drought: One startup shares their 6-month process – Finance News

– Refuel.ai, a San Francisco-based dataset creation and labeling automation platform, raised $5.2 million in seed funding co-led by General Catalyst and XYZ Ventures.

INACTIVE