AI Engineer

We’re looking for a highly curious and hands-on AI Engineer to help us build and continuously improve intelligent workflows inside our product. This role sits at the intersection of model experimentation, AI-first product thinking, and full-stack implementation.

You’ll work closely with the founders to prototype, integrate, and optimize the use of LLMs and other AI systems across our platform. This is a technical, creative, and fast-moving role ideal for someone who thrives in an experimental environment and uses AI tools daily.

What You’ll Do

  • Prototype and implement intelligent workflows powered by foundation models (OpenAI, Claude, Gemini, etc.)
  • Explore and integrate multi-step reasoning using Chain-of-Thought and agent-style patterns
  • Fine-tune open-source models or run prompt tuning experiments to improve task accuracy
  • Use tools like Cursor and Windsurf to prototype and iterate quickly on product
  • Work across the stack to integrate AI features (Node.js + Supabase + React)
  • Run micro-model evaluations to test hypothesis-to-output cycles
  • Use AI to augment your own workflow and automate internal tooling
  • Contribute to our experimentation engine for evaluating which models to use where
  • Implement AI Voice agents

Requirements

Required qualifications:

  • Experience working with foundation models (OpenAI, Gemini, Claude, Mistral, etc.)
  • Deep understanding of prompt engineering, reasoning chains, agent orchestration, and tool calling
  • Hands-on experience with model fine-tuning and working with vector stores
  • Proficiency in Cursor or Windsurf (daily usage preferred)
  • Strong backend knowledge (Node.js, Supabase/Postgres)
  • Comfort building UI flows (React)
  • Passion for using AI not just as a tool, but as a core capability in product design
  • Startup mentality: low ego, resourceful, and fast-paced

Preferred qualifications:

  • Experience working with LiveKit or real-time communication platforms
  • Exposure to LangChain, LlamaIndex, or similar agent frameworks
  • Background in applied ML or RAG systems
  • Product-minded engineer, understands the “why” behind features and contributes to UX/feature design
  • Experience translating abstract AI capabilities into intuitive product workflows

Joomag is the all-in-one platform offering a suite of integrated solutions for every content marketing, digital publishing, corporate communications, and sales enablement need. Headquartered in San Jose, CA, the company delivers a unique, solution-based approach with its powerful flagship Crater™ Editor.Over 500,000 businesses both large and small are already creating, distributing, tracking, and monetizing their online content from a central platform, streamlining workflows and becoming more productive in the process. Among our clients: Costco, HP, Subaru, RingCentral, EY, Levi’s, U.S. Army, UCLA, PayPal, Hilti, Cisco, etc.We have offices in Silicon Valley (San Jose, CA), New York, Munich, Moscow, Shanghai and Yerevan. So, if you are ready to kick everything up a notch, then you should definitely join our team of passionate minds.* Can’t find the right role? Contact our HR Lead - Ani Meruzhan Margaryan to be considered for new positions in the future - https://www.linkedin.com/in/animeruzhan/

View all jobs
Get hired quicker

Be the first to apply. Receive an email whenever similar jobs are posted.

Ace your job interview

Understand the required skills and qualifications, anticipate the questions you may be asked, and study well-prepared answers using our sample responses.

AI Engineer Q&A's
Report this job
Apply for this job