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Join Hot.ai

We're building the next-gen AI companion platform — and we'd love your help.

Why Hot.ai?

Hot.ai blends cutting-edge language models, spicy creativity, and a dash of gamification to create virtual companions that feel alive. We’re a scrappy remote-first crew who value shipping quickly, learning constantly, and keeping meetings to the bare minimum.

Open Positions

Senior Full-Stack & AI Systems Developer

Remote – North/South America or Europe-friendly time zones

What You’ll Help Build

We’re a small, product-focused team shipping cutting-edge conversational and visual-generation tools to millions of end-users. Our stack spans web, mobile and proprietary back-end services that run both censored and uncensored language-model pipelines in a strict compliance framework. We’re looking for individuals who can own features end-to-end—jumping between API design, data engineering, inference optimization and front-end polish—while collaborating with product, ops and research to keep iteration tight.

Specialization 1: Chat & AI Programming

Core Responsibilities

  • Architect and ship production and client-side services in JavaScript/TypeScript (Node.js) and, when needed, PHP or Python.
  • Design schemas and queries across SQL, NoSQL (Redis) and vector databases; tune for scale and latency.
  • Integrate and orchestrate large-language-model (LLM) endpoints, including prompt design, prompt chaining, safety filtering and usage analytics.
  • Uphold our compliance standards for censored and uncensored model outputs; build internal tooling that flags policy violations.

What We’re Looking For

Technical Breadth

  • 4+ years building production systems in Node.js/JavaScript; bonus for PHP & Python.
  • Comfortable context-switching into new languages and frameworks.

AI & Data Depth

  • Practical experience with LLM stacks (OpenAI, local models, RAG, prompt engineering).
  • Solid grasp of vector databases.

Specialization 2: AI Image Generation

Core Responsibilities

  • Interface with production services in JavaScript/TypeScript (Node.js).
  • Integrate LLM services for dynamic contextual prompt generation.
  • Deploy and fine-tune AI image-generation checkpoints and LoRA models; manage inference settings for quality–speed trade-offs.
  • Uphold compliance standards; build internal tooling to flag violations.

What We’re Looking For

Technical Breadth

  • Familiarity with Node.js/JavaScript; bonus for PHP & Python.
  • Comfortable context-switching into new languages and frameworks.

AI & Data Depth

  • Hands-on LLM stack experience (OpenAI, local models, RAG, prompt engineering).
  • 2+ years training and fine-tuning checkpoint/LoRA models for image generation.
  • Familiarity with Stable Diffusion/SDXL, Flux and Pony Diffusion.
  • Knowledge of Automatic1111, Fooocus and ComfyUI.

Specialization 3: Game System Programming

Core Responsibilities

  • Architect and ship production and client-side services in JavaScript/TypeScript (Node.js) and, when needed, PHP or Python.
  • Design schemas and queries across SQL, NoSQL (Redis) and vector databases; tune for scale and latency.
  • Integrate LLM endpoints focused on prompt design and dynamic alteration.
  • Prototype and refine gamified user flows (progression loops, economy balancing, micro-transactions).

What We’re Looking For

Technical Breadth

  • 4+ years building production systems in Node.js/JavaScript; bonus for PHP & Python.
  • Comfortable context-switching into new languages and frameworks.

AI & Data Depth

  • Practical experience with LLM stacks (OpenAI, local models, RAG, prompt engineering).

Product Insight

  • Shipped or deeply analyzed mobile gamification loops.
  • Strong intuition for balancing monetization with player delight.

Overall Soft Skills

  • You move from vague problem to working prototype quickly, then harden it.
  • You write clear, considerate documentation and PRs.
  • You’re unfazed by PG-13 to spicy content in a compliance-first environment.
  • Startup mentality: bias for action, low ego, high ownership.

Why You’ll Love It Here

  • Impact, not layers—your code goes live fast and reaches real users the same day.
  • Hardware & learning budget—top-tier laptop/GPUs plus support for books, courses or conferences.
  • True remote culture—work from anywhere with reliable internet.

Apply

Think you’re a fit? Drop your details below and we’ll be in touch.

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