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We are looking for a Tech Lead to take the helm of our LLM team (currently 3 engineers) and own the architecture, training, and deployment of the models that power our core product. This is a role for a builder. You won't just be managing Jira tickets; you will be writing production code, defining our alignment strategy, and shipping features used by millions of users globally. We operate in the uncensored/NSFW space, which presents unique, high-complexity challenges in alignment, moderation, and steerability.
Job Responsibility:
Ship Code & Lead from the Front: Architect the system and mentor the team, spend significant time hands-on in the codebase (Python/PyTorch)
Own the core chat loop: Optimize context windows, memory/RAG retrieval, and inference latency
Own the Model Lifecycle: Drive strategy for SFT (Supervised Fine-Tuning) and RLHF/DPO (Preference Optimization)
Manage the 'Data Engine': oversee the sourcing, labeling, and cleaning of diverse datasets
Architect High-Precision Moderation: design and train custom classifiers to detect and filter non-consensual or illegal content
Move beyond binary 'safe/unsafe' flags to create nuanced, context-aware moderation systems
Requirements:
8+ years of engineering experience with a significant portion dedicated to shipping ML/LLM features to millions of active users
Proficient in Python/PyTorch and comfortable with the modern LLM stack (vLLM, HuggingFace, fine-tuning pipelines, eval frameworks)
Comfortable working with NSFW content and understanding the technical rigor required to moderate it effectively
Intuition for Alignment: understanding the physics of LLMs—how prompt conditioning, temperature, and sampling affect the 'soul' of a chatbot
Doer Mindset: value velocity, can distinguish between a 'perfect' academic solution and a 'shippable' production solution
Owner: obsess over metrics, regressions, and the user experience long after the code has been merged
What we offer:
Fully remote
4 weeks (20 working days) of PTO per year
Annual in-person meetup
Up to $200 per year for wellbeing expenses
Unlimited 1:1 sessions with psychologists and lifestyle experts through OpenUp (also available for up to three family members)
Co-Working Space Budget: Work from a co-working space up to twice per month (35 EUR / 40 USD per visit)
Learning Budget: Dedicated funds to support professional growth
Equipment: Company laptop provided + monitor budget up to $250
AI Tools Access: Premium access to ChatGPT, Cursor, Hugging Face, and others