HQ: New York, United States • AI Research Labs • Foundation Models • 501-1000 employees • Est. 2024 • Startup • Trust B • Hiring 43, 1 new
Reflection AI is a company founded in 2024 by former Google DeepMind researchers who worked on AlphaGo and large language models. It builds autonomous coding agents and has committed to releasing frontier open-weight models as an American counterweight to Chinese open model releases. The company raised a very large round in 2025 to fund training at frontier scale.
No named decision-maker yet.
Careers mailbox is known
≈ $166k – $313k per year (Estimated) • Equity • Middle • 3+ years exp • In office (San Francisco, New York, United States) • Full-Time • Middle
Python
AI/ML
Fine-tuning
RLHF
DPO
SFT
LLM Evaluation
≈ $199k – $406k per year (Estimated) • Equity • Staff+ • In office (San Francisco, New York, United States, London, United Kingdom) • Master's Degree • Full-Time • Staff
RLHF
Reinforcement Learning
LLM
LLM Guardrails
Interpretability
RLAIF
Machine Learning
HQ: New York, United States • Property & Casualty Insurance • 1001-5000 employees • Est. 1919 • Trust B • Hiring 389, 18 new
American International Group is an insurer founded in Shanghai in 1919 that grew into one of the largest financial institutions in the world before its near-collapse in 2008, when losses on credit default swaps written against mortgage securities forced the largest government rescue of a single company in American history. It has spent the years since dismantling that conglomerate, separating its life and retirement business as Corebridge and selling numerous units, and it now concentrates on commercial property and casualty insurance. Headquartered in New York, it is a considerably smaller and simpler company than the one that failed.
Peter Zaffino · Chairman and Chief Executive Officer · decision-maker
Cornelius Starr · Founder · founder
No careers mailbox known
≈ $78k – $165k per year (Estimated) • Junior • 2+ years exp • In office (Atlanta, United States) • PhD • Full-Time • Junior
LangChain
Claude
Model Context Protocol
Fine-tuning
RLHF
Reinforcement Learning
Multimodal AI
AI Agents
CrewAI
RAG
OpenAI Agents SDK
Knowledge Graph
+4
HQ: San Francisco, United States • Transportation & Logistics • Artificial Intelligence • Logistics • 51-200 employees • Est. 2023 • Startup • Trust D • Hiring 11
Vooma builds artificial intelligence agents for freight brokerage operations. Its systems read emails and quote loads automatically. The company serves logistics providers in North America.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 4 hours ago
6 months ago
Long shot · 4%
AI Engineer
≈ $162k – $356k per year (Estimated) • In office (San Francisco, United States) • Full-Time
Python
TypeScript
JavaScript
AI/ML
Fine-tuning
RLHF
Multimodal AI
AI Agents
LLM
Synthetic Data
OpenAI
Anthropic
Frontend
GraphQL
Next.js
React.js
+6
HQ: San Francisco, United States • Generative Audio & Music • Generative Image • Generative Video • 1001-5000 employees • Est. 2023 • Trust B • Hiring 8
Create professional videos, images, and audio in one studio. Hedra gives you AI-powered tools to go from concept to production in minutes.
No named decision-maker yet.
Careers mailbox is known
$200k – $325k per year • In office (San Francisco, United States) • PhD • Full-Time
World Models
Physical AI
Embodied AI
Machine Learning
RLHF
DPO
PPO
Robotics
Sim-to-Real
HQ: Paris, France • Foundation Models • AI Research Labs • AI Agents • 201-500 employees • Est. 2023 • Startup • Trust A • Hiring 33, 8 new
H Company is an artificial intelligence research company headquartered in Paris, France, and founded in 2023 by Charles Kantor with a founding team drawn largely from Google DeepMind. The company develops agentic AI systems, including Runner H, an agent that carries out multi-step tasks in a browser on the user's behalf. It raised one of the largest seed rounds in European history and positions itself as a French alternative in the agent tooling market.
No named decision-maker yet.
Careers mailbox is known
Hybrid (London, United Kingdom) • Master's Degree • Full-Time
Python
Rust
AI/ML
RLHF
Reinforcement Learning
JAX
Multimodal AI
Knowledge Distillation
Function Calling
AI Agents
NLP
TensorFlow
PyTorch
Mixture of Experts
Synthetic Data
DPO
SFT
Computer Use
Tool Use
Model Distillation
Reward Modeling
+12
HQ: San Francisco, United States • LLM & Generative AI • Foundation Models • Artificial Intelligence • 201-500 employees • Startup • Trust B • Hiring 30
AfterQuery captures how experts reason and turns real-world professional work into high-quality training data for frontier foundation models.
No named decision-maker yet.
No careers mailbox known
$260k – $290k per year • In office (San Francisco, United States) • Full-Time
RLHF
Reinforcement Learning
Synthetic Data
OpenAI
Anthropic
Post-training
DevOps
Docker
HQ: Tokyo, Japan • Advertising • Est. 2010 • Trust A • Hiring 43, 1 new
GENIEE is a Tokyo advertising technology company founded in 2010 that builds supply side and demand side advertising platforms. Its systems help publishers in Japan and Southeast Asia maximise revenue from programmatic advertising, and it has acquired sales and marketing software businesses. The company operates across several Asian markets from its Tokyo base.
No named decision-maker yet.
No careers mailbox known
Equity • Middle • 3+ years exp • Hybrid (Tokyo, Japan) • Master's Degree • Full-Time • Middle • Japanese: C1 • English
Python
JavaScript
TypeScript
Databases
Google BigQuery
BigQuery
AI/ML
Cursor
Claude
Spark
ChatGPT
RLHF
JAX
Function Calling
AI Agents
NLP
TensorFlow
PyTorch
LLM
Hallucination
Synthetic Data
Anthropic
DPO
Devin
Scale AI
Red Teaming
LLM Evaluation
Edge AI
Multi-Agent Systems
Tool Use
Reward Modeling
Machine Learning
Weights & Biases
Claude Code
LangSmith
Pandas
Frontend
Next.js
React.js
DevOps
CI/CD
Terraform
GCP
GitHub Actions
Docker
Kubernetes
GitHub
Analytics
A/B Testing
Management
Linear
Slack
Confluence
Google Workspace
QA
Pytest
+41
In office (Tokyo, Japan) • Full-Time • Japanese: C1
Python
TypeScript
JavaScript
Databases
Google BigQuery
BigQuery
AI/ML
Cursor
Weights & Biases
Spark
ChatGPT
Claude Code
RLHF
JAX
AI Agents
LangSmith
Pandas
PyTorch
LLM
Anthropic
Google AI Studio
Devin
Scale AI
Frontend
Next.js
React.js
DevOps
Terraform
GCP
GitHub Actions
CI/CD
Docker
Kubernetes
GitHub
Management
Linear
Slack
Confluence
Google Workspace
QA
Pytest
+27
Equity • Hybrid (Tokyo, Japan) • Master's Degree • Full-Time • English • Japanese: C1
Python
JavaScript
TypeScript
AI/ML
Cursor
Claude
ChatGPT
Fine-tuning
RLHF
Reinforcement Learning
Quantization
JAX
Prompt Engineering
Multimodal AI
Knowledge Distillation
Function Calling
AI Agents
NLP
Transformers
PyTorch
LLM
Synthetic Data
DPO
Google AI Studio
Edge AI
Multi-Agent Systems
Tool Use
Model Distillation
Machine Learning
Weights & Biases
Claude Code
vLLM
Devin
Frontend
Next.js
React.js
DevOps
GCP
Docker
Kubernetes
GitHub
Management
Linear
Slack
Confluence
Google Workspace
+34
HQ: Palo Alto, United States • LLM & Generative AI • AI Agents • 51-200 employees • Startup • Trust B • Hiring 4
NeoCognition is an AI research lab focused on making LLM agents reliable, grounded and accessible to users, developers and enterprises. Its technical staff work on agent research and platform engineering for specialized intelligence. The company is headquartered in Palo Alto, California, United States.
No named decision-maker yet.
Careers mailbox is known
≈ $196k – $400k per year (Estimated) • Staff+ • In office (Palo Alto, United States) • Full-Time • Staff
Python
AI/ML
Fine-tuning
RLHF
JAX
Function Calling
AI Agents
TensorFlow
PyTorch
LLM
Post-training
Computer Use
Multi-Agent Systems
Tool Use
Machine Learning
Llama
Mistral
+8
HQ: San Francisco, United States • Machine Learning • AI Training Data & Annotation • 51-200 employees • Est. 2020 • Startup • Hiring 1
Human data improves models, models lift people. Pareto advances the signal that keeps the loop turning.
Xuechun Yao · Executive Officer, Director · decision-maker
Careers mailbox is known
$150k – $180k per year • Remote (United States) • Full-Time
HQ: San Francisco, United States • Property & Casualty Insurance • InsurTech • 51-200 employees • Est. 2021 • Startup • Trust B • Hiring 17
Shepherd is an insurance technology company that provides commercial insurance for the construction industry. It underwrites primary and excess casualty coverage for general contractors and specialty trades, pricing risk with data from the safety, telematics and project management tools its insureds already use, and it rewards safer job sites with lower premiums. The company is headquartered in San Francisco, California, United States.
No named decision-maker yet.
No careers mailbox known
$180k – $220k per year • Middle • 4+ years exp • In office (San Francisco, United States) • Master's Degree • Full-Time • Middle
Python
TypeScript
SQL
AI/ML
Spark
LoRA
Fine-tuning
RLHF
Prompt Engineering
Function Calling
AI Agents
TensorFlow
PyTorch
Data Augmentation
Synthetic Data
Gymnasium
OpenAI
Hugging Face
Amazon SageMaker
DPO
Structured Outputs
LLM Guardrails
Agentic Workflows
Tool Use
Machine Learning
LangGraph
LangChain
dbt
NLP
PEFT
LLM
DevOps
AWS
+23
HQ: Singapore • Crypto Wallets • Cryptocurrencies • Crypto Exchanges • 1001-5000 employees • Est. 2017 • Trust A • Hiring 313, 13 new
OKX is a global cryptocurrency exchange and Web3 technology company founded in 2017 and among the largest venues by trading volume. It offers spot, margin, futures, options and perpetual swap markets across hundreds of digital assets, alongside earn products, copy trading and institutional custody and prime services. The company also runs one of the most used self-custodial wallets and a decentralised exchange aggregator that connects to dozens of chains, and it operates the OKB token and the X Layer network, with major operational hubs in Singapore, Hong Kong, Dubai and San Jose.
Star Xu · Founder & Chairman · decision-maker
Roshan Robert · Chief Executive Officer, OKX United States · decision-maker
Hong Fang · President · decision-maker
No careers mailbox known
≈ HK$86k – HK$194k per month (Estimated) • Head+ • 5+ years exp • In office (Hong Kong) • Master's Degree • Architect
Fine-tuning
RLHF
Prompt Engineering
AI Agents
LLM
RAG
Hallucination
DPO
Agentic Workflows
Tool Use
EU AI Act
Analytics
A/B Testing
+4
HQ: Palo Alto, United States • AI for Science • 51-200 employees • Trust B • Hiring 9
0 About us METAMORPHIC is advancing the science of intelligence Founders Andreas Tolias Sophia Sanborn Scientific Advisory Board Surya Ganguli Barun Dutta Edward Chang Jeff Magee Amir Zamir.
No named decision-maker yet.
Careers mailbox is known
$175k – $250k per year • Equity • In office (Palo Alto, United States) • Full-Time
Python
AI/ML
Fine-tuning
RLHF
Multimodal AI
PyTorch
Post-training
Machine Learning
DeepSpeed
Megatron-LM
Vision-Language-Action
+2
HQ: San Francisco, United States • Travel Technology • Online Rental Platforms • Vacation Rentals • 1001-5000 employees • Est. 2008 • Trust B • Hiring 136, 19 new
Airbnb is an American travel company founded in San Francisco in 2008 that runs a global marketplace for short and long-term stays in homes rather than hotels. Hosts list rooms, apartments and houses across more than two hundred countries while the platform handles search, identity verification, payments, insurance cover and dispute resolution, taking a fee from both sides of each booking. Listed on Nasdaq since 2020, the company has expanded beyond accommodation into curated Experiences and Services such as chefs, training and spa treatments, positioning itself as a broader travel and hosting platform.
Nathan Blecharczyk · Co-Founder & Chief Strategy Officer · decision-maker
Joe Gebbia · Co-Founder · decision-maker
Brian Chesky · Co-Founder & Chief Executive Officer · decision-maker
David Coleman · Directors · decision-maker
No careers mailbox known
$191k – $223k per year • Senior • 5+ years exp • United States • Remote (United States) • PhD • Senior
Python
Java
Databases
Apache Kafka
AI/ML
Spark
LoRA
Fine-tuning
RLHF
Prompt Engineering
Kubeflow
TensorFlow
PyTorch
LLM
Ray
Hallucination
LLM Guardrails
PEFT
+8
San Francisco • Melbourne • Berlin • Amsterdam • Warsaw • Media & Audience Measurement • 11-50 employees • Startup • Trust B • Hiring 17, 6 new
Clipbook is the first AI system of record for communications - analyzing the world of external data to deliver real-time and predictive intelligence for high-stakes decisions.
No named decision-maker yet.
Careers mailbox is known
$150k – $220k per year • Junior • 2+ years exp • Remote (United States) • Full-Time • Junior
Python
JavaScript
TypeScript
SQL
Node JS
Node JS
Puppeteer
AI/ML
Embeddings
Multimodal AI
AI Agents
RAG
Fine-tuning
RLHF
Computer Vision
LLM
Semantic Search
Semantic Search
Frontend
Next.js
React.js
GraphQL
DevOps
AWS
Rest API
Management
Stripe
QA
Playwright
+15
$150k – $220k per year • Junior • 2+ years exp • Remote (United States) • Full-Time • Junior
Python
Node JS
JavaScript
Databases
PostgreSQL
Apache Kafka
Google BigQuery
BigQuery
AI/ML
Spark
Fine-tuning
Embeddings
Multimodal AI
AI Agents
Flink
RAG
RLHF
Computer Vision
LLM
Semantic Search
Semantic Search
DevOps
GCP
CI/CD
AWS
Docker
Kubernetes
Analytics
ETL/ELT
Management
Stripe
+18
Tokyo • IT Consulting & Digital Transformation • Custom Software Development • 201-500 employees • Trust B • Hiring 4
Thinca is a Japanese software company that develops and sells Kaikura, a communication platform that manages phone calls, SMS, email, video calls and messaging apps in one place. It is building its own AI features on the platform's communication data, including large language models, and hires machine learning engineers, engineering managers and product managers. The company is based in Japan.
No named decision-maker yet.
No careers mailbox known
Open 206 daysVerified live · 4 hours ago
7 months ago
Long shot · 4%
機械学習エンジニア (LLM)
In office (Tokyo, Japan) • Master's Degree • Full-Time • Japanese: C1
DeepSpeed
RLHF
JAX
Transformers
PyTorch
LLM
SFT
Pre-training
Megatron-LM
FSDP
Machine Learning
+3
HQ: San Jose, United States • LLM & Generative AI • AI Research Labs • 1001-5000 employees • Est. 2007 • Trust A • Hiring 45, 2 new
Hark is a technology company whose operating entity, Hark Labs Inc., develops hardware and desktop software, hiring members of technical staff for its Hark Desktop product, manufacturing quality engineers, information and application security engineers and enterprise sales managers. Its hiring is concentrated at its base on North First Street in San Jose. The company is headquartered in San Jose, California, United States.
Brett Adcock · Executive Officer, Director · decision-maker
Jesse Coors-Blankenship · Director
Colby Adcock · Director
Gregg Hill · Director
No careers mailbox known
$180k – $450k per year • Staff+ • In office (San Jose, United States) • Full-Time • Staff
RLHF
Multimodal AI
AI Agents
Synthetic Data
PPO
GRPO
Post-training
Machine Learning
$180k – $450k per year • Staff+ • In office (San Jose, United States) • Full-Time • Staff
DeepSpeed
RLHF
Reinforcement Learning
Multimodal AI
AI Agents
DPO
SFT
PPO
GRPO
Post-training
Megatron-LM
FSDP
RLAIF
Reward Modeling
Machine Learning
+7
HQ: Livingston, United States • Data Centers & Colocation • Cloud Platforms (IaaS & PaaS) • AI Compute & Inference • 501-1000 employees • Est. 2017 • NASDAQ: CRWV • Trust B • Hiring 296, 18 new
Headquartered in Livingston, New Jersey, CoreWeave is a specialized artificial intelligence cloud computing enterprise providing high-performance GPU infrastructure. The company operates a global network of cloud data centers optimized for compute-intensive workloads, including large language model (LLM) training, generative AI inference, high-performance computing (HPC), and visual effects rendering. By deploying large-scale NVIDIA GPU clusters with Kubernetes-native software architecture, it delivers bare-metal compute acceleration and scalable infrastructure for AI research labs, tech enterprises, and digital developers worldwide.
Biran Venturo · Executive Officer · decision-maker
Nitin Agrawal · Executive Officer · decision-maker
Michael Intrator · Executive Officer, Director · decision-maker
Evan Meager · Executive Officer · decision-maker
Careers mailbox is known
$233k – $341k per year • Equity • Head+ • 15+ years exp • In office (New York, Bellevue, United States) • Full-Time • Architect
RLHF
Reinforcement Learning
Post-training
Pre-training
CoreWeave
InfiniBand
DevOps
SLURM
Kubernetes
HPC
+1
HQ: Los Altos, United States • Generative Image • AI Agents • 11-50 employees • Startup • Trust B • Hiring 3
Saga builds AI agents that turn characters, brands, and worlds into living digital participants that can engage, adapt, and grow across the internet.
No named decision-maker yet.
Careers mailbox is known
≈ $141k – $254k per year (Estimated) • Equity • Senior • 5+ years exp • Los Altos • Remote (United States) • Senior
Python
Go
AI/ML
Fine-tuning
RLHF
Prompt Engineering
Multimodal AI
AI Agents
LLM
LLM Guardrails
RLAIF
Reward Modeling
Model Context Protocol
Reinforcement Learning
Web3
Tendermint
Cosmos
Management
WhatsApp
+8
HQ: San Francisco, United States • Recruiting & Staffing • Freelance & Talent Marketplaces • AI Training Data & Annotation • 501-1000 employees • Est. 2018 • Startup • Trust B • Hiring 26, 4 new
Turing is an AI company headquartered in San Francisco that supplies frontier AI labs with training datasets, reinforcement learning environments, research benchmarks and specialised human expertise in coding, reasoning, STEM and multimodal work. Founded in 2018, it describes itself as the largest and longest-running data provider for software-engineering model training and also builds agentic AI systems for enterprises in financial services, life sciences, healthcare, retail and automotive. It recruits research and AI engineers, strategic project leads, DevOps and IT engineers, product and marketing managers, recruiters and strategy and operations staff, many of them remote.
No named decision-maker yet.
No careers mailbox known
Open 206 daysVerified live · 25 min ago
7 months ago
Long shot · 4%
Research Engineer
Middle • 4+ years exp • Colombia • Remote (Colombia) • Middle
Python
Java
Rust
SQL
C++
AI/ML
Fine-tuning
Reinforcement Learning
Multimodal AI
Function Calling
AI Agents
VLM
Synthetic Data
Post-training
OCR
LLM Evaluation
Tool Use
Embodied AI
RLHF
Human-in-the-Loop
Edge AI
RLAIF
Reward Modeling
Cybersecurity
GDPR
Management
Agile
+16
Middle • 4+ years exp • São Paulo • Remote (Brazil, Colombia) • Middle
Python
Java
Rust
SQL
C++
AI/ML
Fine-tuning
Reinforcement Learning
Multimodal AI
Function Calling
AI Agents
VLM
Synthetic Data
Post-training
OCR
LLM Evaluation
Tool Use
Embodied AI
RLHF
Human-in-the-Loop
Edge AI
RLAIF
Reward Modeling
Cybersecurity
GDPR
Management
Agile
+16
HQ: Beijing, China • Medical AI • AI Chips & Accelerators • Natural Language Processing • Speech & Audio AI • Est. 2012 • HKEX: 09678 • Trust D • Hiring 34, 1 new
Unisound is a Chinese artificial intelligence company founded in 2012 that specialises in speech recognition and language understanding. It supplies voice interfaces for appliances and vehicles and has built clinical documentation systems used in hundreds of Chinese hospitals. The company also develops its own chips for on-device speech processing.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 3 hours ago
7 months ago
Long shot · 2%
大模型算法研究员(J10987)
In office (Beijing, China)
Python
AI/ML
LangGraph
Claude
Qwen
Claude Code
DeepSpeed
RLHF
AI Agents
NLP
AutoGPT
Transformers
PyTorch
OpenAI
DPO
SFT
PPO
GRPO
Megatron-LM
Tool Use
Reward Modeling
LangChain
+13
