Founding Prompt/Context EngineerNovoflow (YC X25) • San Francisco, CA, United States

Founding Prompt / Context Engineer

Novoflow (YC X25) • San Francisco, CA, United States

1 day ago

Job type

Full-time

Job description

Base pay range

$150,000 - $250,000 per year

About Novoflow

At Novoflow, we are building the modernizing layer for the entire healthcare market. We deploy computer agents to automate anything in the front or back office. There’s over 400 EHRs in the market today, and 80% of them can’t be integrated with. Novoflow’s AI employees are the solution. With multi‑year contracts secured and strong investor backing from YC advisors and top investors, we’re scaling our engineering fast to meet skyrocketing demand.

Why Join Us

Impact : Be a key contributor to cutting‑edge projects, transforming industries.
Growth : Thrive in a dynamic, high‑ownership environment alongside top‑tier talent.
Innovation : Work with advanced tools and push technological boundaries.
Autonomy : Drive your own initiatives and influence the company’s technical direction.

About The Role

We’re seeking an LLM engineer with hands‑on experience in architecting strong prompting for agents. This role isn’t as much of a customer‑by‑customer prompt tuning, but rather building scalable AI infrastructure for our computer agents through context, prompting, and adjacent backend engineering. If you thrive in a fast‑paced, high‑ownership environment, we want to hear from you.

What You’ll Do

Design custom prompt frameworks for our various core infrastructure agents.

Build smart context engineering. This will be a mix between backend work and smart system design.

Address safety, reliability, and latency at scale for any work that touches an LLM.

Technical Leadership : Drive technical decisions and architecture design, shaping the foundation of our solutions.

Cross‑functional Collaboration : Work closely with co‑founders and other team members to translate business vision into actionable project plans.

Ownership : Take full product ownership from ideation to launch, including integration into existing systems.

Who You Are / Must‑Haves

Startup Experience : Strong preference for candidates with prior startup experience. Former founders are especially valued for their entrepreneurial mindset and problem‑solving skills.

Prior Experience :

2‑10 years of hands‑on general engineering + context engineering experience.

Green Flag : Leading agent development at previous high‑impact startups / companies.

Educational Background : Ideally, candidates should have attended a college ranked in the top 50 in the United States.

Backend Skills : Strong background in JS / Typescript and Python (we also build voice agents!).

Frontend Skills : Proficiency in Next.js.

Cloud Platforms : Familiarity with AWS and Postgres.

Scalability : Familiarity with Docker is a big plus.

Regulatory : Basic or professional experience with HIPAA is useful.

Perks & Benefits

Competitive Compensation : Base salary plus equity.

Gym Membership.

Wellness allowance.

Full health, dental, and vision coverage.

Live with us in a dedicated 3,500 sq. ft. hackerhouse.

A large snack supply.

Interview Process

Intro call with CTO (20 min)

Live coding round with CTO (1 hr)

Take‑home assignment (2 hrs) + live review (15 min)

Work trial (2‑4 days).

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Engineering and Information Technology

Referrals increase your chances of interviewing at Novoflow (YC X25) by 2x.

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Founding Engineer • San Francisco, CA, United States

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