Remote AI LLM Engineer — Scale Open-Weight Models

EverAI Limited; United States; Remote; USD 180,000 - 280,000; Full time

Benefits offered by this job

Fully remote work

4 weeks PTO per year

Annual gathering

Health & Wellness bene ts

Co-Working space budget

Learning budget

Laptop & equipment budget

AI tools access

Job summary

EverAI Limited, a remote-first AI company building the future of AI companionship, seeks an experienced role to advance production-grade LLMs powering 50M+ users. You’ll collaborate with data, post-training, evals, and model behavior teams to push models from failure analysis to production.

You will address personalization, character consistency, multilingual behavior, and faster training cycles, shaping consumer-scale model behavior with a focus on safety via EverGuard moderation.

Qualifications

• You’ve personally post-trained open-weight LLMs for a user-facing product and shipped them to production.
• You’ve worked where AI was core to the product or business, not an experimental side feature.
• Fine-tuning is core to your experience.
• Strong Python, PyTorch and Hugging Face, with hands-on GPU training and debugging.
• You build data and evals yourself and make decisions from evidence.
• You can take work beyond notebooks into production.
• You use AI tools daily in your own engineering work.
• You are fully comfortable working with uncensored models and explicit NSFW content, including harmful material when developing and evaluating moderation system

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

Skills

Post-training LLMs

Production deployment

Python

GPU training

Data & evals

Model evaluation

NSFW handling

Multilingual support

Tools

PyTorch

Hugging Face

Job description

EverAI Limited, a remote-first AI company building the future of AI companionship, seeks an experienced role to advance production-grade LLMs powering 50M+ users. You’ll collaborate with data, post-training, evals, and model behavior teams to push models from failure analysis to production.

You will address personalization, character consistency, multilingual behavior, and faster training cycles, shaping consumer-scale model behavior with a focus on safety via EverGuard moderation.