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Founding Engineer โ€“ AI LegalTech (Full Stack | LLMs | VLMs | Python/React)

๐Ÿ’ฐ $100,000 - $140 ๐ŸŒ Los Angeles ๐Ÿ“… 04/18/2025

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Job Description

**About Silent Witness**
Silent Witness is building the AI expert witness for personal injury
litigation.

We use LLMs, vision-language models, and proprietary biomechanical data to
automate accident reconstruction, injury analysis, and research scrutiny โ€”
replacing weeks of expert witness work with instant AI analysis. Think: โ€œGPT
meets forensic science.โ€

Weโ€™re already being used by attorneys in the largest personal injury market in
the U.S. (Los Angeles), and this is your chance to join pre-launch, own the
build, and shape a category-defining legaltech platform.

The founder previously built and exited a legal AI platform, has consulted on
over 1,000 injury cases, and is one of the most recognized biomechanics
experts in the country. Youโ€™ll work directly with him to scale the next big
thing in AI + law.

**What Youโ€™ll Do**

* Own the entire product stack โ€” from frontend to backend to deployment
* Integrate LLMs (e.g., GPT-4, Claude, Gemini) for reasoning, document parsing, and question generation
* Build visual and document upload flows (image-to-severity scoring, PDF parsing, citation analysis)
* Set up vector search (e.g., FAISS, Pinecone) and cloud infra (AWS/GCP)
* Rapidly ship product features and iterate with real users
* Help build a world-class AI legal platform from the ground up

**Tech Stack**

* Python (FastAPI, LangChain, PyTorch)
* React, Tailwind, Next.js
* OpenAI / Claude / Gemini APIs
* AWS or GCP
* Pinecone, Weaviate, FAISS
* PDF & OCR tools, Gemini Vision, LLM-based retrieval
* GitHub, Notion, Linear (or whatever you like)

**You Might Be a Fit If You...**

* Have 4+ years of full-stack engineering experience
* Have built and shipped real products from scratch
* Have experience with LLMs, embeddings, or AI pipelines
* Are excited to own architecture, not just contribute
* Thrive in fast-paced, ambiguous startup environments
* Want to shape a product already getting legal traction

**What Youโ€™ll Get**

* Competitive salary ($100kโ€“$140k depending on experience & equity)
* Equity (0.5โ€“5%) based on experience and role
* Early-team influence, zero bureaucracy, full transparency
* Real ownership over a product thatโ€™s solving meaningful problems
* Mentorship and partnership with a founder whoโ€™s been there and exited

**Location**

* Remote-first, but ideally San Francisco or Los Angeles for collaboration
* Flexible schedule โ€” outcome > hours