Role: Senior Ai Engineer
Type: Permanent | Remote / Hybrid
The Opportunity
Power real-time, interactive conversational AI for 50M+ active users. Working with self-hosted, fine-tuned open-weight models, you will join an agile AI team taking models beyond proof-of-concept into high-throughput production.
Content Notice
This role operates in the adult entertainment and NSFW AI space. You will work directly with uncensored models, explicit dialogue, and edge-case safety/moderation filtering.
Key Responsibilities
- Fine-tune open-weight LLMs using SFT, LoRA/QLoRA, and post-training alignment (DPO, GRPO).
- Diagnose model failure modes (tone drift, persona breaks, repetition) and resolve them via data curation, alignment, or guardrail classifiers.
- Enhance multi-turn consistency, long-context roleplay, tone, and multilingual behaviour.
- Build automated roleplay evaluation benchmarks and synthetic data engines.
- Deploy models directly to production and optimise training cycles on GPU clusters.
Requirements
- Proven track record post-training and shipping open-weight LLMs into high-traffic consumer production.
- Deep hands-on experience with Python, PyTorch, Hugging Face, and GPU training/debugging.
- Strong expertise in post-training techniques: SFT, LoRA/QLoRA, and preference tuning (DPO/GRPO).
- Ability to design custom eval frameworks and high-signal training datasets.
- Complete comfort working with uncensored models and explicit NSFW content.
Bonus Points
- Experience in conversational roleplay, character AI, or virtual companions.
- Multilingual or multimodal model training.
- Background in content moderation classifiers, red-teaming, or open-source LLM