Build stronger models
using human intelligence
High quality human intelligence
for frontier AI
Hirebolt helps AI companies access specialist talent, AI training workflows, and engineering capacity through a global network of vetted contributors, engineers, and domain experts.
7,000+
vetted AI, researchers, and domain experts
20+
AI training domains
~7 days
from scope to deployment
From individual engineers and complete development teams to managed data workflows for frontier model research, Hirebolt provides the exact technical capacity your project requires.
Hire AI
Find the engineers, AI specialists, and delivery teams you need to build, launch, and scale AI products.
Find the engineers, AI specialists, and domain experts you need to build, launch, and scale AI products.
Access a global network of engineers and AI professionals across software, machine learning, data, and AI implementation. Review pre-vetted profiles, shortlist candidates immediately, and add capacity to your team without lengthy hiring cycles.
Vetted global network
Pre-screened engineers and AI specialists across multiple regions and time zones.
Search in seconds
Find relevant talent by skills, AI expertise, availability, and location.
AI delivery capacity
Add flexible engineering teams that integrate directly into your standups, tools, and workflows.
Expert evaluation
Access deep technical reviewers and AI-specific evaluators for projects where quality matters.
Vetted AI specialists
Pre-screened engineers and AI specialists across multiple regions and time zones.
Multilingual coverage
Work with specialists across 40+ languages to support global products and localized AI systems.
AI delivery capacity
Add flexible engineering teams that integrate directly into your standups, tools, and workflows.
Expert evaluation
Access deep technical reviewers and AI-specific evaluators for projects where quality matters.
Train AI
Build better models with expert-led training data, evaluations, and human feedback workflows.
We build custom evaluations, private benchmarks, and high-quality post-training datasets — SFT, RLHF, and RL environments — to help AI labs advance model capabilities across multiple modalities and domains.
Agentic code-gen and function-calling evaluation
Scoped, repeatable tasks and automated verifiers
Human-authored datasets for physics, math, and chemistry
Domain-specific tasks across finance, legal, and medical
Vision-language QA, ASR, TTS, and interface trajectories
VLA data packs, simulation trajectories, and teleoperation setups
Build AI
Turn raw models into secure enterprise software, automated workflows, and reliable user experiences.
Whether you are deploying custom agents, secure retrieval systems, or smart automation, Hirebolt handles the engineering required to transition your AI experiments into resilient, everyday business tools.
Plan
Identify the right use cases, models, and workflows for your business. We help define where AI creates value and what it takes to ship it properly.
Build
Develop production-ready AI applications powered by frontier models. From RAG pipelines to autonomous agents, we move from concept to working product fast.
Improve
Refine prompts, model behavior, and system performance over time. We help improve accuracy, reduce costs, and adapt AI systems to changing requirements.
Plan
Identify the right use cases, models, and workflows for your business. We help define where AI creates value and what it takes to ship it properly.
Build
Develop production-ready AI applications powered by frontier models. From RAG pipelines to autonomous agents, we move from concept to working product fast.
Improve
Refine prompts, model behavior, and system performance over time. We help improve accuracy, reduce costs, and adapt AI systems to changing requirements.
Optimized pipelines and caught a critical distributed training leak.
The machine learning engineers we brought on optimized our training infrastructure. They identified an elusive memory leak in our distributed setup that had slowed down our engineering velocity for weeks.
VP of Engineering
Robotics & Embodied AI Lab
Accelerated product deployment with senior AI full-stack talent.
Instead of spending months filtering resumes, we had vetted candidates within days. The developers joined our standups, pushed code instantly, and possessed the exact background in RAG and vector databases we needed to ship.
Director of Engineering
Enterprise Software Company
Identified critical gaps our internal benchmarks completely missed.
Hirebolt brought in specialized domain evaluators who quickly surface edge cases in multi-turn reasoning. The quality and depth of their technical review allowed us to achieve higher model verification standards before release.
Head of Model Evaluation
AI Research Lab
Optimized pipelines and caught a critical distributed training leak.
The machine learning engineers we brought on optimized our training infrastructure. They identified an elusive memory leak in our distributed setup that had slowed down our engineering velocity for weeks.
VP of Engineering
Robotics & Embodied AI Lab
Accelerated product deployment with senior AI full-stack talent.
Instead of spending months filtering resumes, we had vetted candidates within days. The developers joined our standups, pushed code instantly, and possessed the exact background in RAG and vector databases we needed to ship.
Director of Engineering
Enterprise Software Company
Identified critical gaps our internal benchmarks completely missed.
Hirebolt brought in specialized domain evaluators who quickly surface edge cases in multi-turn reasoning. The quality and depth of their technical review allowed us to achieve higher model verification standards before release.
Head of Model Evaluation
AI Research Lab
Built specifically for AI development and model training
Engineering talent at the core
Our network was built around vetted AI engineering talent from day one. That means stronger coverage for coding, STEM, evaluation, and technical AI tasks than generalist annotation platforms can offer.
Sourcing to delivery, fully managed
We handle sourcing, vetting, onboarding, and ongoing operations. With 2M+ pre-screened contributors, we maintain throughput, QA, and replacement capacity across long-running workflows without you having to manage it.
Fast to start, verified at every step
Every engineer and contributor is screened, credential-checked, and matched to your requirements before you see them. Most teams have a shortlist within 48 hours and specialists in place within 7 days.
Global reach, domain depth
40+ languages and specialist coverage across STEM, software, legal, medical, and multimodal domains. The network grows with your needs as models and workflows evolve.
Hire AI talent or train AI models.
Hirebolt makes both simple.
Partner with Hirebolt to accelerate frontier research, scale your post-training datasets, or bring in specialized AI-native engineering talent.