Remote Open-Weight LLM Engineer — Production Focus

Jobicy; United States; A distancia; USD 180.000 - 240.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Fully remote

PTO 4 weeks

Annual gathering

Health & wellness stipend

Co-working budget

Learning budget

Laptop & equipment

AI tools access

Descripción de la vacante

EverAI is building the world’s largest AI companionship platform, powering 50M+ users with self-hosted, fine-tuned open-weight models. You will join a small AI team led by the LLM Tech Lead, collaborating across data, post-training, evals, and model behavior, from failure analysis to production.

The role focuses on personalization, character consistency, multilingual support, and faster training cycles to shape consumer-scale AI experiences.

Formación

• Post-trained open-weight LLMs for a user-facing product and shipped them to production.
• AI must be core to product or business, not just a 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 comfortable with uncensored models and NSFW content for moderation system development.

Responsabilidades

• 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. Decide whether the answer is better data, post-training, prompting or classifiers.
• Build training data and evals that directly shape what gets trained next.
• Improve model behavior across personalization, consistency, multilinguality, 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.

Conocimientos

Post-trained LLMs

AI in prod

Fine-tuning

Python

PyTorch

Hugging Face

GPU training

Evidence-based decisions

Production deployment

Uncensored models safety

Herramientas

GPU clusters

Descripción del empleo

EverAI is building the world’s largest AI companionship platform, powering 50M+ users with self-hosted, fine-tuned open-weight models. You will join a small AI team led by the LLM Tech Lead, collaborating across data, post-training, evals, and model behavior, from failure analysis to production.

The role focuses on personalization, character consistency, multilingual support, and faster training cycles to shape consumer-scale AI experiences.