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Role description

Founding Prompt/Context Engineer

Novoflow logoNovoflowYC X25
Founding roleAI-nativeInterview process shared
TypeFull-time
WorkplaceRemote
SenioritySenior
SponsorshipNo visa sponsorship
Salary$150,000–$250,000
LocationSan Francisco, CA
Engineering

About Novoflow

Novoflow is building AI Employees for medical clinics. We see two industry-breaking problems: over 400 EHRs, 1000s of vendors, and millions of patients all lacking interoperability across healthcare, and a trail of operational inefficiency following it. We’re building the scalable, reliable, and safe AI infrastructure that solves this problem.

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.
  • Realistically, anything that touches an LLM is in your realm of design. How can we tackle safety, reliability, and latency at scale..
  • 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 prev. 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 w/ CTO (20 min)
  • Live coding round w/ CTO (1 hr)
  • Take-home assignment (2 hrs) + live review (15 min)
  • Work trial (2-4 days) 😎

Relevant archetypes

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Company info

Novoflow logo

Novoflow

Computer-using agents for healthcare operations

SeedYC X25Brand new
Founded2025
HQSan Francisco, United States
Size1–10 employees
Unlock human wisdom
ThesisTermsPrivacy
IndustryTechnology, Information and Internet
Funding
  • Seed · Nov 3, 2025
Investors
Justin Hamilton

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