• Startup Job BoardStartup Job Board
  • Weekly Job DropWeekly Job Drop
  • Axira AIAxira AI
  • PricingPricing
  • Career ResourcesCareer Resources
  • Why Candidates Choose UsWhy Candidates Choose Us
  • Compensation CalculatorCompensation Calculator
  • Hiring ResourcesHiring Resources
  • Why Founders Choose UsWhy Founders Choose Us
  • Screen Candidates with AIScreen Candidates with AI
  • ArticlesArticles
logo of foundersarehiring
  • Startup Job Board
  • For Founders
  • For Candidates
  • Axira AI
    For ProfessionalsAI Candidate Screening
  • Pricing
Submit Job
foundersarehiring wordmark

Connect directly with founders who are building the future.

For Job Seekers

  • Browse Jobs
  • Weekly Job Drop
  • Career Resources
  • Why Candidates Choose Us
  • Get Axira Certified
  • Compensation Calculator

For Founders

  • Post a Job
  • Pricing
  • Hiring Resources
  • Why Founders Choose Us
  • Screen Candidates with AI
  • Salary & Equity Trade-Offs

Company

  • About Us
  • Frequently asked questions
  • Contact Us
  • Articles

Join a high-growth startup or land remote work in tech, marketing, or product with FoundersAreHiring (FAH). We connect top talent directly with founders in AI, SaaS, fintech, edtech, and healthtech. All jobs are vetted, equity is transparent, and weekly curated drops cut the noise. Axira AI screening lets you prove skills and culture fit fast-private, recruiter-free, and with a shareable certificate.

© 2025 FoundersAreHiring. All rights reserved.

Build v0.16.4

Axira AI ™ is a trademark. Used under license by FoundersAreHiring.

Legal & PoliciesPrivacy PolicyTerms of ServiceCookie PolicyTakedown PolicyGuidelines

AI Engineer

Boston, MA, US
S

SiPhox Health

Startup
Category
Technical
Experience
0-3 years
Type
Full-Time
Location
Boston, MA, US
Salary
$100,000 - $150,000
Job Description
Benefits & Culture
Stock options
Medical coverage
Dental coverage
Vision coverage
401(k)
Core Values
First-principles
Speed
Ownership
Ability
This goes straight to the founder
Share on: TwitterFacebookLinkedInHacker NewsReddit

No recruiters. Founders reply directly.

Founder Signals
Response Rate
85%
Avg Response Time
2 hours
Compensation Calculator
In startups, higher salary usually means lower equity.
Salary (affects equity %)
Link salary ↔ equity
$125,000
$100,000$150,000
Equity % (auto from trade-off model)
0.85%
0%5%
Projected Exit Value
$350,000,000
$10M$500M
Live Trade-off
Salary
Equity %
Est. Equity Value at Exit
$100,000
1.19%
$2,082,500
$125,000
0.85%
$1,487,500
$150,000
0.51%
$892,500
$175,000
0.51%
$892,500

Advanced Salary & Equity Calculator

Similar Jobs

Biomarker Insights Clinical Training Lead
SiPhox Health
$85000 - $125000
Clinical Operations Associate SiPhox AI Platform
SiPhox Health
$45000 - $75000
Product Engineer AI Operator
Cogram
$60000 - $90000

Related Jobs

AI Engineer
SiPhox Health
$100000 - $150000
AI/ML Engineer
Neo
$100000 - $150000
Full Stack Engineer (Typescript, React, Gen AI)
Sei
$1000000 - $3200000
Software Engineer AI Travel Agent
Gordian Software
$170000 - $210000
Share on: TwitterFacebookLinkedInHacker NewsReddit

About the Company

We are driving the effort to make Healthcare 3.0 a reality through our AI-enabled health platform. We provide high-precision diagnostic tools and at-home blood testing kits, making frequent and affordable healthcare more accessible.

Sai is SiPhox’s consumer-facing large-language-model assistant, capable of analyzing health data, building action plans, providing insights, and consults for users. Sai is capable of ingesting blood biomarker report images and PDFs and extracting health data with high accuracy.

What we are looking for

We’re looking for a lightning-fast builder who thinks from first principles and thrives on turning novel ideas into polished, production-ready software. You have the technical depth to architect distributed AI pipelines, the curiosity to experiment with new models and frameworks, and the discipline to ship code that is both reliable and elegant. If you love owning problems end-to-end, moving at high velocity, and measuring success by the real-world health impact of your work, SiPhox may be the right place for you.

Responsibilities

  1. Build & ship
    • Architect, implement, and scale new features for Sai, our B2B APIs, and the PDF/blood-test ingestion pipeline.
    • Design low-latency retrieval-augmented generation (RAG) and agent workflows that turn raw biomarker data into personalized, guideline-aware coaching.
  2. Own quality
    • Create deterministic and stochastic suite of tests and simulation environments for quality, safety, bias, and hallucination monitoring.
    • Automate regression testing across model families, prompt versions, and guard-rails.
  3. Set up for scale
    • Stand up and maintain containerized micro-services on AWS.
    • Instrument real-time observability and cost dashboards that let us iterate daily.
  4. Collaborate & lead
    • Partner with clinical team to translate clinical requirements into shippable code.

Basic Qualifications

  • BS (or higher) in Computer Science, Engineering, Mathematics, Physics, Cognitive Science or similar.
  • Fluency in Python plus solid ability with TypeScript/Node.js or React.
  • Hands-on experience designing distributed systems on AWS (or GCP/Azure).
  • Working knowledge of modern LLM tooling (LangChain, LlamaIndex, or custom RAG pipelines) and fundamental data-science/ML concepts.
  • Track record of shipping production software fast and communicating findings clearly to technical and non-technical stakeholders.
  • Comfortable using AI to streamline everyday processes, including development.

How We Work

  • First-principles, speed, and ownership. You’ll have autonomy to deploy new features, rewrite system-level prompts, and measure the results—often in the same week.
  • In-person bandwidth. Most of our core product team sits in our Back Bay office so we can whiteboard, push code, and run experiments together at speed.
  • We care about ability, not age or pedigree. Whether you have 2 years or 10 years of production experience, if you can think from first principles, learn outrageously fast, and ship beautiful, reliable software, we’ll give you space to work.

Benefits

  • Competitive salary + meaningful stock options in a well-funded YC company.
  • Medical, dental, and vision coverage.
  • Membership to Lifetime Gym
  • 401(k)
  • Weekly company-wide lunches