PPO Jobs - Remote & On-site

PPO jobs hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $299,563/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

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Quantum

Recho

recho-ai.com
recho-ai.com • HQ: Tokyo, Japan • Call Center Services • Speech & Audio AI • AI Agents • 51-200 employees • Est. 2021 • Startup • Trust C • Hiring 15, 5 new
HQ: Tokyo, Japan • Call Center Services • Speech & Audio AI • AI Agents • 51-200 employees • Est. 2021 • Startup • Trust C • Hiring 15, 5 new
Recho is an AI company that provides voice AI agents for enterprises, with the mission of raising human productivity tenfold through generative AI. Its research team builds in-house speech synthesis and recognition models, and it hires product, platform, infrastructure and SRE engineers, corporate IT staff and enterprise sales. The company is based in Tokyo, Japan.
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago 1 day ago Likely open · 60%

LLMトレーニングエンジニア(シニア / Post-training )

$64k – $127k per year • In office (Tokyo, Japan)
Python
AI/ML
Weights & Biases
DeepSpeed
vLLM
Function Calling
AI Agents
SGLang
TRL
PyTorch
LLM
DPO
SFT
PPO
GRPO
Post-training
Pre-training
Megatron-LM
FSDP
Tool Use
Cursor
Claude Code
Transformers
Devin
DevOps
SLURM
Kubernetes
+17
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SEER Robotics

seer-robotics.ai
seer-robotics.ai • HQ: Suzhou, China • Logistics & Warehouse Robotics • Robotic Software & Control Systems • Industrial Robotics • Est. 2015 • Trust B • Hiring 38, 7 new
HQ: Suzhou, China • Logistics & Warehouse Robotics • Robotic Software & Control Systems • Industrial Robotics • Est. 2015 • Trust B • Hiring 38, 7 new
SEER Robotics supplies mobile robot controllers, navigation software and complete autonomous mobile robot platforms. Its control system is used by many other manufacturers as the brain of their vehicles, and it also builds forklift and tote handling robots for factory logistics. The company is headquartered in Suzhou, China.
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago 1 day ago Hiring now · 86%

模型后训练与在线学习工程师

In office (Hangzhou, China) • Full-Time
LoRA
RLHF
PyTorch
LLM
In-Context Learning
DPO
SFT
PPO
Post-training
Vision-Language-Action
PEFT
+3
Apply

Mecka

mecka.ai
mecka.ai • New York • Toronto • San Francisco • Synthetic Data • AI Training Data & Annotation • 201-500 employees • Startup • Trust A • Hiring 51, 3 new
New York • Toronto • San Francisco • Synthetic Data • AI Training Data & Annotation • 201-500 employees • Startup • Trust A • Hiring 51, 3 new
Mecka is a data infrastructure company that captures, structures and evaluates real-world activity into datasets for robotics and embodied AI teams. It designs and operates data capture, labeling and hardware-enabled systems used by AI labs, and hires software, firmware, computer vision and manufacturing engineers. The company is based in the United States.
No named decision-maker yet.
No careers mailbox known
Verified live · 4 hours ago 1 day ago Hiring now · 90%

Research Scientist – Multimodal Foundation Models

$185k – $210k per year • In office (Toronto, Canada, New York, San Francisco, United States) • Full-Time
Python
AI/ML
Fine-tuning
RLHF
Reinforcement Learning
JAX
Multimodal AI
PyTorch
Synthetic Data
DPO
SFT
PPO
GRPO
Post-training
Embodied AI
Machine Learning
Reward Modeling
Robotics
Reinforcement Learning
+9
Apply

Cohere

cohere.com
cohere.com • HQ: Toronto, Canada • LLM & Generative AI • Foundation Models • AI Agents • 1001-5000 employees • Est. 2019 • Trust A • Hiring 115, 7 new
HQ: Toronto, Canada • LLM & Generative AI • Foundation Models • AI Agents • 1001-5000 employees • Est. 2019 • Trust A • Hiring 115, 7 new
Cohere is a Canadian artificial intelligence company founded in Toronto in 2019 by researchers including one of the co-authors of the transformer architecture paper. It builds large language models aimed specifically at enterprise use rather than consumer chat, with a product line covering text generation, embeddings, reranking and an agent platform, and it emphasises private deployment inside a customer's own cloud or data centre for regulated industries. The company has raised substantial funding from technology and industrial investors, and partners with cloud providers and system integrators to reach banking, healthcare and public sector customers.
Aidan Gomez · Co-founder and Chief Executive Officer · decision-maker
Paul Oran · Executive Officer, Director · decision-maker
Ivan Zhang · Co-founder · founder
Nick Frosst · Co-founder · founder
Careers mailbox is known
Verified live · 1 hour ago 2 days ago Hiring now · 90%

Member of Technical Staff - Post-Training (Reinforcement Learning & Generalization)

≈ $239k – $544k per year (Estimated) • Staff+ • New York • Toronto • Remote (EU, Europe, United States, Canada) • Full-Time • Staff
RLHF
Reinforcement Learning
JAX
PyTorch
PPO
GRPO
Post-training
Pre-training
Megatron-LM
FSDP
+2
Apply

Kuailu Software

kuailutech.com
kuailutech.com • HQ: Singapore • Enterprise Apps Implementation Partners • AI Agents • 201-500 employees • Est. 2020 • Hiring 5, 1 new
HQ: Singapore • Enterprise Apps Implementation Partners • AI Agents • 201-500 employees • Est. 2020 • Hiring 5, 1 new
A one-stop enterprise management solution. Kuailu AI unifies CRM, HR, finance, procurement, and meeting management on a single AI-powered platform. Eliminate data silos, gain real-time business insights, and accelerate digital transformation with AI Agents.
No named decision-maker yet.
No careers mailbox known
$94k – $187k per year (gross) • Senior • 3+ years exp • In office (Singapore) • Full-Time • Senior
RLHF
Reinforcement Learning
AI Agents
LLM
PPO
GRPO
Post-training
Analytics
Microsoft Excel
Apply

EnableComp

enablecomp.com
enablecomp.com • HQ: Franklin, United States • Business Process Outsourcing (BPO) • Revenue Cycle & Medical Billing • 501-1000 employees • Est. 2000 • Hiring 10, 1 new
HQ: Franklin, United States • Business Process Outsourcing (BPO) • Revenue Cycle & Medical Billing • 501-1000 employees • Est. 2000 • Hiring 10, 1 new
EnableComp is a client success focused company that focuses on maximizing complex claims reimbursements in the healthcare sector.
No named decision-maker yet.
Careers mailbox is known
Verified live · 3 hours ago 3 days ago Hiring now · 86%

AI Engineer (REMOTE)

≈ $114k – $230k per year (Estimated) • Middle • 3+ years exp • Remote (United States) • Bachelor's Degree • Full-Time • Middle
Python
AI/ML
Fine-tuning
Reinforcement Learning
PyTorch
LLM
Synthetic Data
Hugging Face
DPO
PPO
GRPO
Human-in-the-Loop
Knowledge Graph
Machine Learning
Cybersecurity
HIPAA
Analytics
A/B Testing
+7
Apply

42dot

42dot.ai
42dot.ai • HQ: Seongnam, South Korea • Smart Mobility • Autonomous Driving • Automotive Software • 201-500 employees • Est. 2019 • Trust A • Hiring 83, 5 new
HQ: Seongnam, South Korea • Smart Mobility • Autonomous Driving • Automotive Software • 201-500 employees • Est. 2019 • Trust A • Hiring 83, 5 new
42dot is a South Korean mobility software company founded in 2019 and acquired by Hyundai Motor Group in 2022, where it serves as the group's global software centre. It develops the software-defined vehicle platform for Hyundai and Kia, covering the vehicle operating system, over-the-air updates, autonomous driving software, AI services and the cloud services behind them, with offices in Sunnyvale and Warsaw. The company is headquartered in Seongnam, South Korea.
No named decision-maker yet.
Careers mailbox is known
Verified live · 3 min ago 3 days ago Hiring now · 70%

Reinforcement Learning Engineer (Autonomous Driving)

Middle • 3+ years exp • Hybrid (Seongnam, South Korea) • Full-Time • Middle
Reinforcement Learning
AI Agents
PPO
GRPO
Vision-Language-Action
Machine Learning
World Models
Robotics
Reinforcement Learning
Sim-to-Real
+1
Apply

Meta

meta.com
meta.com • HQ: Menlo Park, United States • Digital Media • Foundation Models • Advertising • Virtual & Augmented Reality • Consumer Internet Groups • Messaging Apps • Social Networks • 5000+ employees • Est. 2004 • Trust B • Hiring 985, 100 new
HQ: Menlo Park, United States • Digital Media • Foundation Models • Advertising • Virtual & Augmented Reality • Consumer Internet Groups • Messaging Apps • Social Networks • 5000+ employees • Est. 2004 • Trust B • Hiring 985, 100 new
Meta Platforms is an American technology company founded in 2004 as Facebook and renamed in 2021 to signal its investment in immersive computing. It operates the largest family of social and messaging applications in the world, comprising Facebook, Instagram, WhatsApp, Messenger and Threads, and earns almost all of its revenue from advertising sold against that audience. Headquartered in Menlo Park, California, the company also develops the open Llama language models and the Reality Labs division behind Quest headsets and Ray-Ban smart glasses.
Mark Zuckerberg · Founder, Chairman & Chief Executive Officer · decision-maker
John Sines · Executive Officer · decision-maker
Jordan Schwartz · Executive Officer · decision-maker
Meron Gribetz · Executive Officer, Director · decision-maker
No careers mailbox known
Verified live · 4 hours ago 3 days ago Likely open · 62%

Software Engineer - Reinforcement Learning Infrastructure, MSL (Technical Leadership)

≈ $232k – $424k per year (Estimated) • Senior • 6+ years exp • In office (Menlo Park, United States) • Bachelor's Degree • Full-Time • Senior
Python
Rust
C++
AI/ML
RLHF
Reinforcement Learning
AI Agents
PPO
GRPO
RLAIF
Machine Learning
+2
Apply

Alibaba Group

alibaba.com
alibaba.com • HQ: Hangzhou, China • Logistics • E-commerce Platforms • Foundation Models • Cloud Platforms (IaaS & PaaS) • Marketplaces • 1001-5000 employees • Est. 1999 • Trust A • Hiring 1944, 195 new
HQ: Hangzhou, China • Logistics • E-commerce Platforms • Foundation Models • Cloud Platforms (IaaS & PaaS) • Marketplaces • 1001-5000 employees • Est. 1999 • Trust A • Hiring 1944, 195 new
Alibaba Group is a Chinese technology conglomerate founded in Hangzhou in 1999 by Jack Ma and seventeen colleagues, built around commerce and cloud computing. Its domestic marketplaces Taobao and Tmall handle a large share of Chinese retail, while Alibaba.com, AliExpress, Lazada and Trendyol serve cross-border and international buyers, supported by the Cainiao logistics network. Alibaba Cloud is the largest public cloud provider in Asia and develops the open-weight Qwen model family, which has become one of the most downloaded foundation model series in the world.
Eddie Wu · Chief Executive Officer · decision-maker
Joseph Tsai · Co-Founder & Chairman · decision-maker
Toby Xu · Chief Financial Officer · decision-maker
Jack Ma · Founder · founder
No careers mailbox known
Verified live · 1 hour ago 4 days ago Hiring now · 90%

阿里国际站/Alibaba.com-Agentic RL Infra工程师-Accio Work-杭州

In office (Hangzhou, China)
Python
AI/ML
Claude Code
vLLM
AI Agents
SGLang
TensorRT-LLM
TRL
PyTorch
LLM
Ray
Mixture of Experts
PPO
GRPO
Megatron-LM
FSDP
NCCL
TensorRT
Transformers
+10
Apply
Verified live · 1 hour ago 23 days ago Hiring now · 72%

高德-多模态算法工程师-agent方向

In office (Beijing, China) • Chinese: C1
Python
AI/ML
LangGraph
LlamaIndex
PyTorch
DPO
SFT
PPO
GRPO
World Models
Reward Modeling
LangChain
DevOps
GitHub
+4
Apply
Verified live · 1 hour ago 24 days ago Likely open · 62%

飞猪-大模型算法工程师/专家-智能客服

In office (Hangzhou, China) • Senior • Chinese: C1
SGLang
DPO
PPO
GRPO
Apply

DNA325

dna325.com
dna325.com • Information Technology • IT Staffing & Staff Augmentation • 51-200 employees • Est. 2010 • Hiring 17, 17 new
Information Technology • IT Staffing & Staff Augmentation • 51-200 employees • Est. 2010 • Hiring 17, 17 new
Accelerate your hiring with DNA325, your IT recruitment Europe partner. Get qualified candidates, even for hard-to-fill roles, in as little as 3 days!
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago 5 days ago Hiring now · 90%

Principal Machine Learning Engineer

≈ $141k – $298k per year (Estimated) • Lead • Remote (Germany, Indonesia, Ireland, Poland, Spain) • Principal
DeepSpeed
LoRA
Fine-tuning
Quantization
JAX
Knowledge Distillation
QLoRA
PyTorch
Ray
DPO
SFT
Megatron-LM
FSDP
Model Distillation
Spark
vLLM
RLHF
Multimodal AI
Diffusion Models
TensorRT
PEFT
TensorRT-LLM
LLM
PPO
+16
Apply

Boundless Networks

boundlessnetworks.io
boundlessnetworks.io • Hiring 3, 3 new
Hiring 3, 3 new
Strong Cellular Indoors. Finally.. Boundless Networks delivers reliable calls and data where traditional signals fail.
No named decision-maker yet.
Careers mailbox is known
Top 25% pay 5 days ago Hiring now · 86%

Applied AI/ML Engineer

$175k – $250k per year • Middle • 3+ years exp • Remote (likely United States) • Full-Time • Middle
Python
AI/ML
vLLM
CUDA Toolkit
Reinforcement Learning
Quantization
SGLang
TensorRT-LLM
PyTorch
LLM
CUDA
DPO
SFT
PPO
GRPO
Post-training
Megatron-LM
LLM Evaluation
Speculative Decoding
KV Cache
TensorRT
SkyPilot
Ray
FSDP
DevOps
SLURM
Kubernetes
GitHub
+18
Apply

Swift Solar

swiftsolar.com
swiftsolar.com • HQ: San Carlos, United States • Solar Energy • 1001-5000 employees • Est. 2017 • Hiring 3, 1 new
HQ: San Carlos, United States • Solar Energy • 1001-5000 employees • Est. 2017 • Hiring 3, 1 new
Swift Solar is a US solar technology company combining proven silicon heterojunction technology with next-generation perovskite tandems to build the future of American power.
Jean Joel · Executive Officer, Director · decision-maker
Tomas Leijtens · Director · decision-maker
Joel Jean · Executive Officer, Director · decision-maker
Amrit Jalan · Director
No careers mailbox known
Verified live · 4 hours ago Visa sponsor 6 days ago Hiring now · 85%

Staff/Senior Software Engineer

$150k – $220k per year • Staff+ • 5+ years exp • In office (San Carlos, United States) • Full-Time • Staff
Python
JavaScript
TypeScript
SQL
AI/ML
LangGraph
Claude Code
Fine-tuning
Reinforcement Learning
LLM
PPO
Multi-Agent Systems
LangChain
Frontend
Vue.js
Svelte
React.js
DevOps
GCP
Azure
CI/CD
AWS
+11
Apply

Handshake

joinhandshake.com
joinhandshake.com • HQ: San Francisco, United States • AI Training Data & Annotation • Professional Networks • Job Boards & Aggregators • 51-200 employees • Est. 2014 • Trust A • Hiring 67, 10 new
HQ: San Francisco, United States • AI Training Data & Annotation • Professional Networks • Job Boards & Aggregators • 51-200 employees • Est. 2014 • Trust A • Hiring 67, 10 new
Handshake is a professional career network for students and early-career professionals headquartered in San Francisco, California, and founded in 2014. The company provides a digital platform that connects university students with internships and entry-level jobs, including specialized roles in the artificial intelligence economy. It serves over 15 million students and alumni from more than 1,500 colleges and universities, partnering with over 900,000 employers across the United States, United Kingdom, and Europe.
No named decision-maker yet.
Careers mailbox is known
Verified live · 1 hour ago 7 days ago Hiring now · 90%

Member of Technical Staff, Post-Training (India)

≈ $45k – $111k per year (Estimated) • Equity • Staff+ • In office (Bengaluru, India) • Full-Time • Staff
Python
AI/ML
LoRA
Fine-tuning
RLHF
Reinforcement Learning
PEFT
PyTorch
LLM
Synthetic Data
DPO
SFT
PPO
Post-training
Scale AI
Human-in-the-Loop
Reward Modeling
Machine Learning
Transformers
+10
Apply
Top 25% payVerified live · 1 hour ago 3 months ago Long shot · 18%

Member of Technical Staff, Post-Training

$200k – $350k per year • Staff+ • Hybrid (San Francisco, New York, Mountain View, United States) • Full-Time • Staff
Python
AI/ML
LoRA
Fine-tuning
RLHF
Reinforcement Learning
PEFT
PyTorch
LLM
Synthetic Data
DPO
SFT
PPO
Post-training
Scale AI
Human-in-the-Loop
Reward Modeling
Machine Learning
Transformers
+10
Apply

TikTok

tiktok.com
tiktok.com • HQ: Culver City, United States • Social Networks • Video & Photo Sharing • Social Commerce • Advertising • 1001-5000 employees • Est. 2016 • Trust B • Hiring 3416, 70 new
HQ: Culver City, United States • Social Networks • Video & Photo Sharing • Social Commerce • Advertising • 1001-5000 employees • Est. 2016 • Trust B • Hiring 3416, 70 new
TikTok is a short-form video platform owned by the Chinese technology group ByteDance and launched internationally in 2016, growing further after the 2018 merger with the lip-sync app Musical.ly. Its recommendation feed surfaces content by engagement signals rather than social graph, which lets new creators reach large audiences quickly and made the app one of the most downloaded in the world. The company runs dual operating hubs in Singapore and Los Angeles and has built an advertising business, a live streaming economy and the TikTok Shop commerce marketplace on top of the video feed.
Blake Chandlee · President, Global Business Solutions · decision-maker
Shou Zi Chew · Chief Executive Officer · decision-maker
Zhang Yiming · Founder of ByteDance · founder
Careers mailbox is known
Verified live · 5 hours ago Visa sponsor 8 days ago Hiring now · 90%

Machine Learning Engineer Intern (E-Commerce Supply Chain & Logistics-LLM / Agent )- 2027 Summer

Intern • In office (Seattle, United States) • Internship • Intern
Python
Java
TypeScript
C++
C++
TensorFlow C++
PyTorch C++
AI/ML
LangChain
LlamaIndex
vLLM
Reinforcement Learning
JAX
Multimodal AI
Function Calling
NLP
TensorFlow
PyTorch
LLM
RAG
Time Series Forecasting
Hugging Face
SFT
PPO
GRPO
Post-training
Pre-training
Context Engineering
Tool Use
Machine Learning
RLHF
DPO
Knowledge Graph
Computer Use
RLAIF
Reward Modeling
+26
Apply
Verified live · 5 hours ago Visa sponsor 2 months ago Likely open · 59%

Machine Learning Engineer Intern (E-Commerce Supply Chain & Logistics-LLM/Agent) - 2027 Start (PhD)

Intern • In office (San Jose, United States) • PhD • Internship • Intern
Python
Java
TypeScript
C++
C++
TensorFlow C++
PyTorch C++
AI/ML
LangChain
LlamaIndex
vLLM
Reinforcement Learning
JAX
Multimodal AI
Function Calling
NLP
TensorFlow
PyTorch
LLM
RAG
Time Series Forecasting
Hugging Face
SFT
PPO
GRPO
Post-training
Pre-training
Context Engineering
Tool Use
Machine Learning
RLHF
DPO
Knowledge Graph
Computer Use
RLAIF
Reward Modeling
+26
Apply

Luma AI

lumalabs.ai
lumalabs.ai • HQ: Palo Alto, United States • Generative 3D • Generative Image • Generative Video • 201-500 employees • Est. 2021 • Startup • Hiring 32
HQ: Palo Alto, United States • Generative 3D • Generative Image • Generative Video • 201-500 employees • Est. 2021 • Startup • Hiring 32
Luma AI is an artificial intelligence company that specializes in building advanced 3D visual technology and generative AI tools. Founded in 2021, the company is best known for its realistic text-to-3D models, NeRF (Neural Radiance Fields) capture app, and its high-quality video generation model, Dream Machine. By enabling creators and developers to easily capture, generate, and edit photorealistic 3D assets and video, it aims to make next-generation digital media creation accessible to everyone.
Sixian Yu · Executive Officer, Director · decision-maker
Amit Jain · Executive Officer, Director · decision-maker
David Beyer · Director
Careers mailbox is known
Verified live · 4 hours ago 8 days ago Hiring now · 90%

Research Scientist / Engineer – Reinforcement Learning Infrastructure

≈ $116k – $263k per year (Estimated) • Hybrid (London, United Kingdom) • Full-Time
C
C
MPI
AI/ML
vLLM
RLHF
Reinforcement Learning
Multimodal AI
Function Calling
AI Agents
SGLang
TRL
PyTorch
LLM
Ray
PPO
GRPO
Post-training
FSDP
NCCL
LLM Evaluation
Computer Use
Tool Use
Transformers
DevOps
Kubernetes
+15
Apply

Siemens

siemens.com
siemens.com • HQ: Munich, Germany • Rail Transport • Medical Imaging Systems • Building Automation & Controls • Manufacturing & Industrial Software • CAD, PLM & BIM Software • Industrial Automation • 1001-5000 employees • Est. 1847 • Trust A • Hiring 1069, 449 new
HQ: Munich, Germany • Rail Transport • Medical Imaging Systems • Building Automation & Controls • Manufacturing & Industrial Software • CAD, PLM & BIM Software • Industrial Automation • 1001-5000 employees • Est. 1847 • Trust A • Hiring 1069, 449 new
Siemens is a German technology conglomerate founded in Berlin in 1847 by Werner von Siemens around a telegraph that indicated letters rather than Morse code. After a decade of divestments it now concentrates on industry, infrastructure, transport and healthcare, supplying factory automation and control systems, building and grid technology, trains and signalling, and the Teamcenter and NX design software acquired through a long run of software purchases. The Siemens Xcelerator platform ties hardware to software and digital twins, and the group retains a majority stake in the separately listed medical imaging company Siemens Healthineers.
Jim Hagemann Snabe · Chairman of the Supervisory Board · decision-maker
Ralf Thomas · Chief Financial Officer · decision-maker
Roland Busch · President & Chief Executive Officer · decision-maker
Werner von Siemens · Founder · founder
Careers mailbox is known
≈ $41k – $97k per year (Estimated) • Senior • In office (Suzhou, China) • Senior • Chinese: C1
DeepSpeed
RLHF
Transformers
PyTorch
DPO
SFT
PPO
Megatron-LM
FSDP
Vision-Language-Action
Physical AI
DevOps
GitHub
Robotics
Gazebo
Isaac Sim
MuJoCo
Diffusion Policy
+8
Apply

Thinking Machines Lab

thinkingmachines.ai
thinkingmachines.ai • HQ: San Francisco, United States • AI Development Tools • AI Research Labs • Foundation Models • Multimodal AI • 501-1000 employees • Est. 2025 • Startup • Hiring 55, 2 new
HQ: San Francisco, United States • AI Development Tools • AI Research Labs • Foundation Models • Multimodal AI • 501-1000 employees • Est. 2025 • Startup • Hiring 55, 2 new
Thinking Machines Lab is an artificial intelligence research and product company based in San Francisco and founded in 2025. The company develops multimodal AI systems and open-weights models, such as Inkling, alongside developer tools like Tinker for model fine-tuning. It operates as a public benefit corporation focused on human-AI collaboration and open science, supported by significant venture capital investment.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 4 hours ago Visa sponsorship 8 days ago Hiring now · 89%

RL Systems - Infra

$425k – $475k per year • In office (San Francisco, United States) • Relocation • Full-Time
Reinforcement Learning
JAX
PyTorch
Post-training
Machine Learning
RLHF
DPO
PPO
Reward Modeling
DevOps
OpenTelemetry
Prometheus
SLURM
Kubernetes
Grafana
Robotics
Reinforcement Learning
+7
Apply
Top 25% payVerified live · 4 hours ago Visa sponsorship 2 months ago Fading · 32%

Site Reliability Engineer, Post Training

$300k – $350k per year • Middle • 4+ years exp • In office (San Francisco, New York, United States) • Relocation • Full-Time • Middle
Python
C++
C++
PyTorch C++
AI/ML
Reinforcement Learning
Post-training
RLHF
PyTorch
Ray
DPO
PPO
TPU
NCCL
InfiniBand
Reward Modeling
DevOps
SRE
Linux
SLURM
Kubernetes
+10
Apply

Baseten

baseten.co
baseten.co • HQ: San Francisco, United States • MLOps • AI Compute & Inference • 1001-5000 employees • Est. 2019 • Trust B • Hiring 106, 3 new
HQ: San Francisco, United States • MLOps • AI Compute & Inference • 1001-5000 employees • Est. 2019 • Trust B • Hiring 106, 3 new
Baseten is an American company founded in 2019 that runs machine learning models in production for companies that would rather not operate GPU infrastructure themselves. Its position is inference rather than training: it handles model packaging, autoscaling, cold start latency and multi-cloud capacity, which are the unglamorous problems that determine whether a model-powered product is fast and affordable enough to ship. Headquartered in San Francisco and backed at a multi-billion dollar valuation, it serves companies deploying open and custom models, and it competes with both the hyperscalers and the model providers' own hosted endpoints.
Sarah Guo · Executive Officer, Director · decision-maker
Tuhin Srivastava · Executive Officer, Director · decision-maker
Danielle Herzberg · Executive Officer · decision-maker
Amir Haghighat · Executive Officer, Director · decision-maker
No careers mailbox known
Top 25% payVerified live · 4 hours ago 9 days ago Likely open · 63%

Post-Training Applied Researcher

$200k – $275k per year • Hybrid (San Francisco, United States) • Full-Time
Cursor
Fine-tuning
Reinforcement Learning
Knowledge Distillation
Function Calling
LLM
Synthetic Data
DPO
SFT
PPO
GRPO
Post-training
LLM Evaluation
Baseten
KV Cache
Agentic Workflows
Tool Use
Model Distillation
Reward Modeling
Machine Learning
+12
Apply

Lila Sciences

lila.ai
lila.ai • HQ: Cambridge, United States • Materials Science & Nanotechnology • Laboratory & Pharmaceutical Robotics • AI Research Labs • AI for Science • 201-500 employees • Est. 2023 • Startup • Trust A • Hiring 100, 5 new
HQ: Cambridge, United States • Materials Science & Nanotechnology • Laboratory & Pharmaceutical Robotics • AI Research Labs • AI for Science • 201-500 employees • Est. 2023 • Startup • Trust A • Hiring 100, 5 new
Lila Sciences is an American company launched publicly in 2025 out of Flagship Pioneering with the aim of building what it calls scientific superintelligence: artificial intelligence systems that generate hypotheses and then test them in the company's own automated laboratories. Its distinguishing feature is the closed loop between model and experiment, since most scientific machine learning is limited by the fact that the data it needs has never been generated. Headquartered in Cambridge, Massachusetts and funded at an unusually large scale for a company at this stage, it is working across life sciences and materials chemistry rather than committing to a single field.
No named decision-maker yet.
Careers mailbox is known
Top 25% payVerified live · 2 hours ago 9 days ago Hiring now · 90%

Principal Machine Learning Engineer, Applied AI

$252k – $336k per year • Lead • 2+ years exp • In office (Cambridge, San Francisco, United States) • Principal
Python
AI/ML
Multimodal AI
AI Agents
PyTorch
DPO
SFT
PPO
GRPO
Post-training
Machine Learning
RLHF
Mixture of Experts
LLM Evaluation
+5
Apply
Top 25% payVerified live · 2 hours ago 9 days ago Hiring now · 90%

Senior / Staff Machine Learning Engineer, Applied AI

$180k – $298k per year • Staff+ • 1+ year exp • In office (Cambridge, San Francisco, United States) • Staff
Python
AI/ML
Multimodal AI
AI Agents
PyTorch
DPO
SFT
PPO
GRPO
Post-training
Machine Learning
RLHF
Mixture of Experts
LLM Evaluation
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bvteck.com • HQ: Bridgewater Township, United States • IT Staffing & Staff Augmentation • HR & Recruiting AI • Est. 2020 • Staffing · EOR • Hiring 363, 182 new
HQ: Bridgewater Township, United States • IT Staffing & Staff Augmentation • HR & Recruiting AI • Est. 2020 • Staffing · EOR • Hiring 363, 182 new
Bright Vision Technologies is a minority-owned technology company that develops Lumina, an AI talent intelligence and enterprise automation platform offering candidate sourcing, semantic resume matching, recruiter assistants and blockchain-based credential verification. Alongside the product, it places IT consultants with clients, with openings for SAP functional consultants, Oracle Cloud architects, data architects, PeopleSoft and Dell Boomi integration specialists, and it runs an office in Chennai, India. The company is headquartered in Bridgewater, New Jersey, United States.
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9 days ago Hiring now · 78%

NLP AI Engineer

$130k – $180k per year • Staff+ • 10+ years exp • Remote (likely United States) • Full-Time • Staff
Python
AI/ML
DeepSpeed
LoRA
Fine-tuning
RLHF
AI Agents
NLP
PEFT
QLoRA
PyTorch
LLM
RAG
Hallucination
Synthetic Data
DPO
SFT
PPO
FSDP
Machine Learning
LangGraph
LangChain
LlamaIndex
Multimodal AI
Transformers
Ray
Knowledge Graph
DevOps
GCP
Azure
AWS
Docker
Kubernetes
+23
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