Post-training Jobs - Remote & On-site

Post-training jobs hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $325,849/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

AI/ML
Data Science
Backend
Frontend
Mobile
DevOps
Web3
Games
Hardware
Robotics
Security
QA
Leadership
Networking
Product
Design
Analytics
Support
Solutions
Enterprise Apps
Quantum

Judgment Labs

judgmentlabs.ai
judgmentlabs.ai • HQ: San Francisco, United States • AI Agents • AI Evaluation & Observability • 51-200 employees • Est. 2025 • Startup • Trust B • Hiring 4
HQ: San Francisco, United States • AI Agents • AI Evaluation & Observability • 51-200 employees • Est. 2025 • Startup • Trust B • Hiring 4
Judgment Labs builds a continuous-improvement stack for AI agents that monitors agent behaviour at scale and uses interaction data to evaluate and improve it through learning and feedback. It hires applied AI engineers, backend and full-stack product engineers and a founding account executive. The company is headquartered in San Francisco, California, United States.
No named decision-maker yet.
Careers mailbox is known
Open 277 daysVerified live · 4 hours ago Visa sponsor 9 months ago Long shot · 6%

Applied AI Engineer

≈ $172k – $376k per year (Estimated) • In office (San Francisco, United States) • Full-Time
Reinforcement Learning
Post-training
Machine Learning
Apply

DatologyAI

datologyai.com
datologyai.com • HQ: Redwood City, United States • Machine Learning • AI Research Labs • AI Training Data & Annotation • 11-50 employees • Est. 2023 • Startup • Trust C • Hiring 12, 1 new
HQ: Redwood City, United States • Machine Learning • AI Research Labs • AI Training Data & Annotation • 11-50 employees • Est. 2023 • Startup • Trust C • Hiring 12, 1 new
Headquartered in Redwood City, California, DatologyAI is an artificial intelligence startup that builds automated data curation platforms for training foundation models. The company provides software tools that automatically select and prepare optimal training datasets, allowing organizations to train better deep learning models with less data and reduced computing costs. Founded in 2023, the firm helps machine learning teams enhance overall AI performance by efficiently identifying and filtering out noisy data at scale.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveTop 25% pay Visa sponsor 9 months ago Long shot · 4%

Solutions Engineer (AI/ML, Pre-Sales)

$230k – $300k per year • Middle • 4+ years exp • Hybrid (San Mateo, United States) • Relocation • Full-Time • Middle
Python
AI/ML
Spark
Reinforcement Learning
VLM
PyTorch
LLM
Ray
Synthetic Data
Hugging Face
SFT
Post-training
Pre-training
LLM Evaluation
DevOps
GCP
Azure
AWS
Docker
Kubernetes
+10
Apply
Likely inactiveTop 25% pay Visa sponsor 1 year ago Long shot · 5%

Research Scientist, Post-Training

$180k – $300k per year • Middle • 3+ years exp • Hybrid (San Mateo, United States) • Relocation • PhD • Full-Time • Middle
Snowflake
AI/ML
Fine-tuning
Multimodal AI
Knowledge Distillation
Chain-of-Thought
PyTorch
Synthetic Data
DPO
SFT
Post-training
Pre-training
Model Distillation
Machine Learning
+5
Apply

AgiBot

agibot.com.cn
agibot.com.cn • HQ: Shanghai, China • Robotic Software & Control Systems • Robotics AI • Humanoid Robots • 1001-5000 employees • Est. 2023 • Trust A • Hiring 437, 2 new
HQ: Shanghai, China • Robotic Software & Control Systems • Robotics AI • Humanoid Robots • 1001-5000 employees • Est. 2023 • Trust A • Hiring 437, 2 new
Headquartered in Shanghai, China, AgiBot - also known as Zhiyuan Robotics - is an innovative artificial intelligence and robotics company specializing in general-purpose humanoid robots and embodied AI systems. The firm develops advanced hardware platforms and specialized operating software that integrate computer vision, motion control, and deep learning capabilities. By producing both bipedal and wheeled robotic systems, it provides scalable automation solutions designed for industrial manufacturing, commercial environments, and research applications.
No named decision-maker yet.
Careers mailbox is known
Verified live · 1 hour ago 9 months ago Long shot · 8%

机器人全身运动控制工程师

≈ $38k – $107k per year (Estimated) • In office (Shanghai, China) • Full-Time • Chinese: C1
Python
AI/ML
RLHF
JAX
VLM
Transformers
PyTorch
Post-training
Vision-Language-Action
World Models
DevOps
Linux
Robotics
ROS2
Isaac Sim
MuJoCo
Isaac Lab
Imitation Learning
Diffusion Policy
+8
Apply

Reka AI

reka.ai
reka.ai • HQ: Sunnyvale, United States • LLM & Generative AI • Multimodal AI • 201-500 employees • Est. 2022 • Startup • Trust B • Hiring 6
HQ: Sunnyvale, United States • LLM & Generative AI • Multimodal AI • 201-500 employees • Est. 2022 • Startup • Trust B • Hiring 6
Reka AI is a research laboratory building multimodal foundation models that process text, images, audio and video in one system. Its Core and Flash models were trained from scratch by a small team of researchers previously at DeepMind, Google Brain, Baidu and Meta, and they compete with far larger laboratories on multimodal benchmarks. The company sells its models to enterprises and governments that want capable multimodal systems without depending on the largest providers; its models are available through an API and through cloud marketplaces for enterprise deployment.
Dani Yogatama · Executive Officer, Director · decision-maker
Cyprien d'Autume · Director
Robert Toews · Director
Careers mailbox is known
Open 280 daysVerified live · 3 hours ago Visa sponsorship 9 months ago Long shot · 7%

Member of Technical Staff (GPU Performance Engineer)

≈ $89k – $254k per year (Estimated) • Staff+ • Singapore • Remote (Singapore, United States, United Kingdom) • Full-Time • Staff
Python
C++
C++
PyTorch C++
AI/ML
CUDA Toolkit
Fine-tuning
Reinforcement Learning
Multimodal AI
PyTorch
CUDA
Post-training
DevOps
SLURM
Kubernetes
+4
Apply

Sciforium

sciforium.ai
sciforium.ai • HQ: San Francisco, United States • AI Compute & Inference • 201-500 employees • Est. 2024 • Startup • Trust A • Hiring 13
HQ: San Francisco, United States • AI Compute & Inference • 201-500 employees • Est. 2024 • Startup • Trust A • Hiring 13
Access state-of-the-art AI models through a simple, fast, and reliable API. Deploy production-ready AI applications in minutes, not months.
No named decision-maker yet.
No careers mailbox known
Open 282 daysTop 25% pay Visa sponsor 9 months ago Long shot · 9%

Foundation Model Data Engineer

$155k – $210k per year • Senior • 5+ years exp • In office (San Francisco, United States) • Master's Degree • Full-Time • Senior
Python
AI/ML
Spark
RLHF
Multimodal AI
LLM
Ray
Synthetic Data
DPO
SFT
Post-training
Pre-training
Machine Learning
Computer Vision
+5
Apply

Inference

inference.ai
inference.ai • HQ: San Francisco, United States • AI Agents • AI Compute & Inference • Startup • Trust B • Hiring 4
HQ: San Francisco, United States • AI Agents • AI Compute & Inference • Startup • Trust B • Hiring 4
Models. Agents. GPUs. Whatever you need — we've got it. Ghost agent VMs, Maestro model routing, Engine wholesale GPUs, and Academy, on one platform.
No named decision-maker yet.
No careers mailbox known
Open 283 daysTop 25% pay Visa sponsor 9 months ago Long shot · 4%

Machine Learning Researcher

$250k – $350k per year • Middle • 3+ years exp • Hybrid (San Francisco, United States) • Full-Time • Middle
C#
C#
.NET
AI/ML
DeepSpeed
RLHF
Reinforcement Learning
Knowledge Distillation
TRL
Transformers
PyTorch
LLM
Hugging Face
DPO
SFT
Post-training
Megatron-LM
GPT-5
Model Distillation
Multimodal AI
DevOps
GitHub
+11
Apply
Open 283 daysTop 25% pay Visa sponsor 9 months ago Long shot · 2%

Applied Machine Learning Engineer

$220k – $320k per year • Junior • 2+ years exp • Hybrid (San Francisco, United States) • Full-Time • Junior
C#
C#
.NET
AI/ML
DeepSpeed
Knowledge Distillation
Axolotl
Transformers
PyTorch
LLM
Hugging Face
SFT
Post-training
GPT-5
Model Distillation
Multimodal AI
DevOps
GitHub
Analytics
ETL/ELT
+8
Apply

World Labs

worldlabs.ai
worldlabs.ai • HQ: San Francisco, United States • AI Research Labs • Generative 3D • Foundation Models • 201-500 employees • Est. 2024 • Startup • Trust A • Hiring 11
HQ: San Francisco, United States • AI Research Labs • Generative 3D • Foundation Models • 201-500 employees • Est. 2024 • Startup • Trust A • Hiring 11
World Labs is a spatial intelligence laboratory building large world models that generate and reason about three dimensional environments. Founded by the computer vision researcher Fei-Fei Li with collaborators from Stanford and Google, it argues that language alone cannot give machines an understanding of physical space. The company demonstrated systems that turn a single image into an explorable three dimensional scene and raised over a billion dollars in valuation within its first year; its team includes leading researchers in computer vision, graphics and generative modelling.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 1 hour ago Visa sponsorship 10 months ago Fading · 28%

Research Scientist (Generative Modeling)

$250k – $325k per year • Middle • 3+ years exp • In office (San Francisco, United States) • Relocation • Full-Time • Middle
Python
AI/ML
Fine-tuning
Knowledge Distillation
Diffusion Models
TensorFlow
PyTorch
Post-training
Pre-training
World Models
Model Distillation
Machine Learning
Computer Vision
+4
Apply

LBOX

lbox.kr
lbox.kr • HQ: Seoul, South Korea • Legal AI • Trust C • Hiring 10, 1 new
HQ: Seoul, South Korea • Legal AI • Trust C • Hiring 10, 1 new
LBOX is a South Korean legal technology company that offers a legal AI and work management platform for lawyers. It builds on large language models and a large body of legal data, and hires communications, recruiting, enterprise sales, security, investor relations and legal research staff. The company is based in Seoul, South Korea.
No named decision-maker yet.
No careers mailbox known
Likely inactiveVerified live · 2 hours ago 10 months ago Long shot · 2%

AI Researcher

In office (Seoul, South Korea) • Full-Time • Korean: C1
Transformers
LLM
RAG
Post-training
Pre-training
DevOps
GitHub
Apply

Omni

omni.co
omni.co • HQ: San Francisco, United States • BI & Dashboard Software • 1001-5000 employees • Est. 2022 • Trust A • Hiring 35, 7 new
HQ: San Francisco, United States • BI & Dashboard Software • 1001-5000 employees • Est. 2022 • Trust A • Hiring 35, 7 new
Omni is a business intelligence platform founded by former Looker leaders that combines a governed data model with ad hoc SQL and spreadsheet-style exploration. Analysts can promote a one-off query into the shared model without rebuilding it. The product targets teams that found older BI tools either too rigid or too loose.
No named decision-maker yet.
No careers mailbox known
Open 311 daysTop 25% pay 10 months ago Long shot · 12%

AI Engineer

$160k – $270k per year • Middle • 3+ years exp • Remote (United States) • Full-Time • Middle
JavaScript
TypeScript
Kotlin
Databases
Snowflake
Google BigQuery
Amazon Redshift
BigQuery
AI/ML
Cursor
Claude
ChatGPT
AI Agents
LLM
Post-training
Frontend
React.js
Remix
DevOps
AWS
Analytics
Looker
Management
Slack
+10
Apply

MakinaRocks

makinarocks.ai
makinarocks.ai • HQ: Seoul, South Korea • Industrial AI • 51-200 employees • Startup • Trust B • Hiring 20
HQ: Seoul, South Korea • Industrial AI • 51-200 employees • Startup • Trust B • Hiring 20
MakinaRocks is a South Korean industrial AI company that builds physical AI on an enterprise AI operating system for harsh environments ranging from factories to defence. Its product development division turns its AI into platform and application products for industrial sites, and it hires technical product managers, MLOps solution architects, AI software project managers and legal counsel. The company is headquartered in Seoul, South Korea.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 3 hours ago 10 months ago Long shot · 5%

[FDE] Forward Deployed Engineer - LLM Quantization

Middle • 3+ years exp • In office (Seoul, South Korea) • Full-Time • Middle • Korean: C1
Quantization
ONNX
TFLite
PyTorch
LLM
Hugging Face
Post-training
LiteRT
TensorFlow
+1
Apply

Mirelo AI

mirelo.ai
mirelo.ai • HQ: Paris, France • Generative Audio & Music • 1-10 employees • Est. 2023 • Startup • Trust B • Hiring 8
HQ: Paris, France • Generative Audio & Music • 1-10 employees • Est. 2023 • Startup • Trust B • Hiring 8
AI-powered sound and music generation for videos. We are passionate AI researchers, product experts and musicians.
Florian Wenzel · Directeur Général · decision-maker
Carl Simon · Président de SAS · decision-maker
Simon Florian · Managing Directors · decision-maker
Carl Johann · Managing Directors · decision-maker
Careers mailbox is known
Open 316 daysVerified live · 11 min ago 10 months ago Long shot · 4%

Research Scientist - Model Team

≈ $72k – $167k per year (Estimated) • Hybrid (Berlin, Tübingen, Germany) • PhD • Full-Time
Multimodal AI
Post-training
PyTorch
FSDP
Apply

Voltai

voltai.com
voltai.com • HQ: Palo Alto, United States • AI Agents • EDA Software • 51-200 employees • Startup • Trust D • Hiring 24
HQ: Palo Alto, United States • AI Agents • EDA Software • 51-200 employees • Startup • Trust D • Hiring 24
Voltai develops world models and AI agents that learn, evaluate, plan and experiment, starting with understanding and building hardware such as electronics systems and semiconductors. It hires machine learning engineers, full-stack engineers, enterprise sales executives and engineering managers. The company is headquartered in Palo Alto, California, United States.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 1 hour ago Visa sponsor 11 months ago Long shot · 4%

Research Engineer - Post-Training

≈ $174k – $381k per year (Estimated) • In office (Palo Alto, United States) • Full-Time
Fine-tuning
Reinforcement Learning
Multimodal AI
Post-training
World Models
Apply

Simular

simular.ai
simular.ai • HQ: Palo Alto, United States • AI Research Labs • Multimodal AI • AI Agents • 51-200 employees • Est. 2023 • Trust C • Hiring 21
HQ: Palo Alto, United States • AI Research Labs • Multimodal AI • AI Agents • 51-200 employees • Est. 2023 • Trust C • Hiring 21
Simular is an artificial intelligence company based in Palo Alto, California, and was founded in 2023. The company develops autonomous AI agents, such as its Sai co-worker and S2 framework, which automate complex digital tasks by interacting directly with computer interfaces and web browsers. It operates as a venture-backed startup focusing on the research and deployment of computer-use models for knowledge workers and enterprise teams.
Li Ang · Executive Officer · decision-maker
No careers mailbox known
Likely inactiveVerified live · 2 hours ago Visa sponsor 1 year ago Long shot · 4%

Research Scientist

≈ $165k – $361k per year (Estimated) • In office (Palo Alto, United States) • PhD • Full-Time
Fine-tuning
Embeddings
Reinforcement Learning
JAX
Multimodal AI
Computer Vision
AI Agents
PyTorch
LLM
Post-training
Pre-training
Reward Modeling
Machine Learning
+5
Apply

Tzafon

tzafon.ai
tzafon.ai • San Francisco • Zurich • Tel Aviv • Machine Learning • Foundation Models • 1-10 employees • Startup • Trust B • Hiring 3
San Francisco • Zurich • Tel Aviv • Machine Learning • Foundation Models • 1-10 employees • Startup • Trust B • Hiring 3
Tzafon is advancing machine intelligence. Our team develops models and systems for autonomous agents interacting with the real world.
No named decision-maker yet.
Careers mailbox is known
Open 371 daysTop 25% pay 1 year ago Long shot · 9%

Member of Technical Staff - Foundations

$200k – $500k per year • Equity • Staff+ • Hybrid (San Francisco, United States) • Full-Time • Staff
Python
AI/ML
CUDA Toolkit
Fine-tuning
JAX
PyTorch
CUDA
Triton
Post-training
Pre-training
FSDP
TPU
vLLM
Synthetic Data
OpenAI
Anthropic
+7
Apply
Open 470 daysTop 25% pay 1 year ago Long shot · 9%

Member of Technical Staff – Applied AI

$150k – $400k per year • Equity • Staff+ • In office (San Francisco, United States, Zurich, Switzerland, Tel Aviv, Israel) • Full-Time • Staff
Python
AI/ML
Weights & Biases
MLFlow
Fine-tuning
RLHF
PyTorch
LLM
Post-training
DPO
Constitutional AI
Multi-Agent Systems
Tool Use
+4
Apply

METISINC

metisinc.io
metisinc.io • HQ: San Francisco, United States • IT Consulting & Digital Transformation • Custom Software Development • Est. 2025 • Trust B • Hiring 4
HQ: San Francisco, United States • IT Consulting & Digital Transformation • Custom Software Development • Est. 2025 • Trust B • Hiring 4
Asymmetrical Solutions Realisation & Asynchronous Delivery. Bespoke business design andengineering. Advisory, consulting, training, & recruitment.
No named decision-maker yet.
No careers mailbox known
Open 374 daysVerified live · 2 hours ago 1 year ago Long shot · 3%

Research Engineer

$200k per year • In office (San Francisco, United States)
Python
AI/ML
Reinforcement Learning
JAX
AI Agents
TensorFlow
PyTorch
Synthetic Data
OpenAI
Post-training
Reward Modeling
Machine Learning
DevOps
Platform Engineering
+4
Apply
Open 378 daysTop 25% pay 1 year ago Long shot · 3%

Platform Engineer

$150k per year • In office (San Francisco, United States)
Python
Rust
AI/ML
AI Agents
OpenAI
Post-training
Apply

Gritt

gritt.ai
gritt.ai • HQ: San Francisco, United States • Construction • Solar Energy • Robotics AI • Construction Robotics • 51-200 employees • Est. 2022 • Startup • Trust A • Hiring 17
HQ: San Francisco, United States • Construction • Solar Energy • Robotics AI • Construction Robotics • 51-200 employees • Est. 2022 • Startup • Trust A • Hiring 17
Gritt is an AI and robotics technology company headquartered in San Francisco and founded in 2022. The company develops an intelligent system that retrofits standard construction machinery with AI-powered robotic arms to automate labor-intensive tasks such as solar panel installation, rebar tying, and material transport. It operates primarily in the renewable energy and large-scale infrastructure sectors, partnering with major engineering and construction firms to accelerate project timelines and address labor shortages.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 1 hour ago 1 year ago Long shot · 8%

Robot Learning Engineer

≈ $124k – $243k per year (Estimated) • Middle • 4+ years exp • In office (South San Francisco, United States) • Master's Degree • Full-Time • Middle
Python
AI/ML
Reinforcement Learning
Multimodal AI
Computer Vision
PyTorch
Post-training
World Models
Physical AI
Machine Learning
Robotics
Imitation Learning
Reinforcement Learning
+3
Apply

Intology

intology.ai
intology.ai • HQ: San Francisco, United States • AI Research Labs • Machine Learning • 1-10 employees • Est. 2025 • Likely startup • Hiring 2
HQ: San Francisco, United States • AI Research Labs • Machine Learning • 1-10 employees • Est. 2025 • Likely startup • Hiring 2
Automated AI R&D for LLM Training Drug Discovery LLM Training Drug Discovery Genomics Materials Science Scientific Discovery Quantitative Trading Search & Recommendation Risk & Forecasting All. LLM Training Drug Discovery.
No named decision-maker yet.
No careers mailbox known
Open 396 daysVerified live · 2 hours ago 1 year ago Long shot · 4%

Research Scientist

≈ $167k – $365k per year (Estimated) • Equity • In office (San Francisco, United States) • PhD • Full-Time
AI Agents
Post-training
Multi-Agent Systems
Machine Learning
Apply

Alinia

alinia.ai
alinia.ai • HQ: Dover, United States • AI Safety & Alignment • AI Agents • 11-50 employees • Est. 2023 • Startup • Hiring 2
HQ: Dover, United States • AI Safety & Alignment • AI Agents • 11-50 employees • Est. 2023 • Startup • Hiring 2
We are on a mission to make human-machine interactions safer in the most critical scenarios and at scale. Our core values At Alinia, we are all driven by a passion to make people’s lives better. We approach challenges with a growth mindset and strive to amplify others.
Ariadna Font Llitjos · Executive Officer, Director · decision-maker
Carlos Munoz Ferrandis · Executive Officer, Director · decision-maker
Manuel Silva Martinez · Director
Careers mailbox is known
Open 400 daysVerified live · 3 hours ago 1 year ago Long shot · 7%

Applied Research Scientist

≈ $48k – $112k per year (Estimated) • Hybrid (Barcelona, Spain) • Master's Degree • Full-Time
Python
AI/ML
JAX
NLP
TensorFlow
PyTorch
LLM
Data Augmentation
Synthetic Data
SFT
LLM Guardrails
Machine Learning
Post-training
+4
Apply

Twenty

twenty.io
twenty.io • HQ: Arlington, United States • National Security • Cyber Warfare • 501-1000 employees • Est. 2024 • Trust A • Hiring 37, 4 new
HQ: Arlington, United States • National Security • Cyber Warfare • 501-1000 employees • Est. 2024 • Trust A • Hiring 37, 4 new
Twenty is a US defense technology company building cyber warfare capabilities to deter attacks on American and allied networks. It hires mission deployment leads and command mission operations leads for teams in Arlington, Chantilly, Fort Meade and New York. The company is headquartered in Arlington, Virginia, United States.
Joseph Lin · Executive Officer, Director · decision-maker
Larry Olson · Executive Officer · decision-maker
Raymond Tonsing · Director
No careers mailbox known
Top 25% payVerified live · 2 hours ago 1 year ago Long shot · 15%

Applied AI Engineer

$159k – $263k per year • Middle • 4+ years exp • In office (Arlington, United States) • Bachelor's Degree • Full-Time • Middle
Python
Databases
PostgreSQL
Weaviate
Milvus
pgvector
Pinecone
AI/ML
LangGraph
LangChain
RLHF
JAX
Pydantic AI
TensorFlow
PyTorch
CrewAI
LLM
RAG
DPO
SFT
PPO
GRPO
Post-training
Pre-training
vLLM
Quantization
Prompt Engineering
ONNX
TensorRT
AgentOps
LLMOps
DevOps
GCP
Azure
AWS
Docker
Kubernetes
+26
Apply

Spellbrush

spellbrush.com
spellbrush.com • HQ: San Francisco, United States • Game Development • Generative Image • Est. 2018 • Startup • Trust D • Hiring 10
HQ: San Francisco, United States • Game Development • Generative Image • Est. 2018 • Startup • Trust D • Hiring 10
Spellbrush builds generative models for anime art and the games made with them, including the illustration tool used by its community. Its research focuses on stylised character generation rather than photorealism. The studio ships its own titles alongside the underlying model work.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 1 hour ago Visa sponsorship 1 year ago Long shot · 2%

AI Anime Researcher - LLM

≈ $172k – $376k per year (Estimated) • In office (San Francisco, United States) • Full-Time • Japanese: C1
LLM
Post-training
RLHF
Google AI Studio
Apply
Machines can read this selection · checked 02:15 UTC
Post-training Jobs - Remote & On-site
Frequently asked questions
How many Post-training jobs are available on Alion?
There are currently 757 active listings from 331 hiring companies on Alion, refreshed daily.
What salary do Post-training jobs pay?
The average salary is around $325,849 per year based on the current listings.
Are remote options available for Post-training jobs?
Yes, many of these roles offer remote or hybrid work, and you can filter listings by remote, relocation and visa sponsorship.
How do I apply for Post-training jobs?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.