All roles

Founding AI Engineer / CTO

Remote · USA Full-time New today

We don't want a VP. We seek a true technical co-founder —the 0-1 architect who will build the AI core and own it end-to-end.

You'll trade corporate predictability for foundational upside: substantial founder equity, a founder stipend, and 100% technical ownership. You will be the CTO hands-on, shipping product, hiring next engineers, and setting the engineering culture.

Who you are

  • 7+ years of hands-on software engineering at the intersection of full-stack and machine learning.
  • You've built and shipped production AI/ML systems (LLM-based products, RAG/agent systems, embeddings + vector search) and you write production code every week.
  • You understand the full stack: frontend (React/TypeScript/Next.js), backend (Python FastAPI), infra (Docker, Kubernetes), databases (Postgres + vector DB), and MLOps.
  • You care about correctness, observability, and privacy (audit logs, monitoring, data governance).

What you'll own & ship

  • Design and build the core alignment engine: embeddings, retrieval, match-signal pipeline, and ranking, and production inference for scale.
  • Implement robust retrieval/RAG or agent architectures and make the trade-offs between latency, cost, and privacy.
  • Build data pipelines, model evaluation and continuous training workflows, and reliable model deployment (serving, autoscaling, monitoring).
  • Lead infra: containerized services, cloud infra as code (Terraform), CI/CD, and secure model hosting.
  • Hire and grow a small engineering team; own product/technical roadmap and KPIs.

Tech stack & skills we expect

(We'll trust you to pick the best tools and make trade-offs, but familiarity with these is ideal)

  • LLM app frameworks: LangChain / agent frameworks for chain-of-responsibility & tool use.
  • Vector search & embeddings: experience with Pinecone / Weaviate / pgvector / Redis / Milvus (production tradeoffs for latency, cost, and scale).
  • Fine-tuning & model ops: PEFT / LoRA / QLoRA workflows and Hugging Face toolchain for adapting open models when needed.
  • LLM providers & hybrid hosting: pragmatic use of managed LLM APIs (OpenAI, Anthropic, etc.) plus ability to run/host open models when cost or privacy demands it.
  • MLOps & observability: experiment tracking, model registry and CI (Weights & Biases, MLflow, Dagster-style orchestration).
  • Full-stack fundamentals: React + TypeScript + Next.js, Tailwind (or similar), Node or Python APIs, PostgreSQL, Redis, GraphQL/REST, Docker & Kubernetes, Terraform.

Nice-to-haves

  • Experience with agent-style architectures and knowledge of RAG vs agent trade-offs (security, data locality, latency).
  • Deployment experience on major clouds (AWS/GCP/Azure) and experience optimizing for cost/perf at scale.
  • Background in privacy/security, GDPR/Audit, or working with sensitive data.

The trade

  • You bring deep, hands-on engineering + ML experience and product intuition. You will be the founding technical leader and do the heavy lifting.
  • We give you founder equity (no employee option-pool games), a founder stipend, and practical ownership of the technical roadmap and hiring.

If this sounds like you

Share your resume and a link to your profile (LinkedIn / GitHub / personal site) and one sentence: what was the hardest technical trade-off you made in the last 12 months? (keep it short well take it from there) at [email protected]

Apply To This Job

Related roles

AI Product Researcher (Intern/CO-OP)

Remote · USA Full-time

Technical Co-Founder / CTO

Remote · USA Full-time

Security Architect - Remote US

Remote · USA Full-time

AI/ML Engineer (Intern/CO-OP)

Remote · USA Full-time

China Business Development Manager

Remote · USA Full-time

PHP fejlesztő

Remote · USA Full-time

Assistant Reservations Manager

Remote · USA Full-time

Technical Support Analyst II

Remote · USA Full-time

Inpatient QA Coder Auditor

Remote · USA Full-time

ED Medical Coder

Remote · USA Full-time

Mathematics Education Specialist - AI Trainer

Remote · USA Full-time

Experienced Part-time Remote Data Entry Specialist – Join blithequark's Virtual Team and Contribute to the Magic of Entertainment

Remote · USA Full-time

[Work From Home] Want English Teachers - Earn Money Online in

Remote · USA Full-time

Sr. Director of Product Management

Remote · USA Full-time

Executive Director/CEO

Remote · USA Full-time

Experienced Customer Success Representative – Remote, Seasonal, Part-Time/Full-Time Opportunity to Drive Customer Happiness and Growth at arenaflex

Remote · USA Full-time

Experienced Remote Data Entry Specialist – Healthcare Industry Leader in Digital Transformation and Innovation at blithequark

Remote · USA Full-time

Apply Now: Part-Time Remote Call Center Representative/Customer

Remote · USA Full-time

Loan Closer - Indirect Auto

Remote · USA Full-time

Experienced Business Analysis Supervisor for Apple Customer Support Team – Remote Opportunity with blithequark at $25/Hour

Remote · USA Full-time