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AI Summary
Post-train and improve open-weight LLMs powering EverAI's AI companionship platform for 50M+ users. Own data, evals, post-training, production shipping, and iteration based on real user behavior. Requires hands-on experience post-training LLMs in production with Python, PyTorch, and Hugging Face.
Key Highlights
Fully remote LLM post-training role for a 50M+ user AI companionship platform
Own data, evals, post-training, production shipping, and iteration
Requires production experience post-training open-weight LLMs
Strong Python, PyTorch, and Hugging Face with GPU training/debugging
Comfortable with uncensored models and explicit NSFW content for moderation work
Key Responsibilities
Fine-tune open-weight LLMs using SFT, LoRA/QLoRA and post-training methods such as DPO and GRPO
Diagnose model failures and turn them into experiments
Build training data and evals that directly shape what gets trained next
Improve model behavior across personalization, consistency, tone, multilingual and group interactions
Ship to production and use real user behavior to guide the next iteration
Speed up the training loop so experiments are faster, easier to compare, and more reproducible
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Technical Skills Required
Benefits & Perks
4 weeks (20 working days) PTO per year
Monthly $100 health insurance allowance
Access to OpenUp psychologists and lifestyle experts
Co-working space budget up to twice per month
Learning budget
Company laptop and equipment budget
Premium AI tools access
Annual in-person meetup
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Nice to Have
Experience with conversational AI, roleplay products, or highly personalized consumer AI
Multilingual LLMs
Moderation, safety, or adversarial testing
Multimodal models
Open-source LLM / post-training contributions
Job Description
Our Vision & Products
EverAI — Building the Future of AI Companionship
One of the Top 15 Largest & Fastest-Growing AI Companies in the World
50 Million Users in 2 years — Help Us Reach 100M first, 500M next
At EverAI, we’re shaping what it means to connect with AI. With 50 million users and counting, we're not just building products — we're creating entirely new categories.
Our flagship product is the world’s largest AI companionship platform, redefining relationships for millions. It is governed by our proprietary moderation system, EverGuard — an internal AI designed to ensure everything we build is safe, ethical, and human-first.
And we’re only just getting started!
Our Team
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