Chief Technology Officer

raydar; San Francisco, Northern (CA, KY); Hybrid; USD 250,000 - 350,000; Full time

Job summary

Raydar is seeking a Chief Technology Officer in San Francisco to own technical direction while remaining hands-on. You will build evaluation and training infrastructure, bring research prototypes into production, and grow the engineering team.

Lead architecture decisions, hire and mentor 3–6 engineers, and collaborate with design partners to deliver regulated financial workflows and robust core infrastructure.

Qualifications

• 5 to 10 years of relevant engineering experience with technical leadership.
• Experience hiring engineers, building teams, and creating systems from zero to one.
• Hands-on work with evaluation harnesses, RL environments, or training pipelines.
• Experience shipping AI or LLM products and production infrastructure.
• Experience with agentic retrieval, deployed customer solutions, self-hosted models, or testing environments.
• Current hands-on coding ability and US work authorization; visa transfers supported.

Responsibilities

• Set engineering architecture and research priorities with company leadership.
• Build evaluations and reinforcement-learning environments for regulated financial workflows.
• Turn research prototypes into production guardrails.
• Hire and mentor an initial engineering team of 3 to 6 people.
• Work directly with design partners and build core infrastructure around their needs.

Skills

Engineering leadership

Hiring engineers

RL environments

AI/LLM production

Hands-on coding

Tools

Evaluation harnesses

Training pipelines

Job description

# Chief Technology Officer* San Francisco, California, United States* Full-timeApply for this role## Compensation$250k–$350kUSD base salary per year* **Equity:** 0.25-3%.## About the companyOur client is an applied AI research company developing tools for safer use of AI in regulated industries. The team is turning research into production software for enterprise users.## The roleRaydar is recruiting for this opportunity through the Paraform network. The position is with our client. As Chief Technology Officer, you will own technical direction while remaining hands-on. You will build evaluation and training infrastructure, bring research prototypes into production, and grow the engineering team.## What you'll do* **Set engineering architecture** and research priorities with company leadership.* **Build evaluations and reinforcement-learning** environments for regulated financial workflows.* Turn research prototypes into production guardrails.* Hire and mentor an initial engineering team of 3 to 6 people.* **Work directly** with design partners and build core infrastructure around their needs.## What we're looking for* **5 to 10 years** of relevant engineering experience, including technical leadership.* Experience hiring engineers, building teams, and creating systems from zero to one.* Hands-on work with evaluation harnesses, RL environments, or training pipelines.* Experience shipping AI or LLM products and production infrastructure.* Experience with agentic retrieval, deployed customer solutions, self-hosted models, or testing environments.* Current hands-on coding ability and US work authorization; visa transfers are supported.## Bonus points* Experience building in fast-paced startup environments.* A strong technical academic background.* Visa transfer support.## Location and work model* San Francisco, California, United States.* Onsite role.* Visa transfers are supported.