Founding Full-Stack Engineer (Staff/Principal)

Fonzi is partnering with our client to hire a Founding Full-Stack Engineer. Only candidates located in the United States will be considered for this role.

Missio

nOur client is the all-in-one service to save time, money, and stress on health insurance and medical bills

.
Medical bills are a massive problem. They are confusing, over 40% contain errors, 17% of claims are denied by insurance, and often represent very large sums of money. As a result, 100 million Americans are saddled with medical debt, and medical bills cause nearly 70% of personal bankruptcies in the U

S.
Dealing with unexpectedly high medical bills is time-consuming, complex, and stressful. Stuck between their providers, payers, and bill collectors, consumers too frequently have to make numerous phone calls, wait on hold, and even send paper letters and faxes. Appealing insurance denials, resolving billing errors, negotiating bills, and filing out-of-network claims require expert knowledge that most consumers don't ha

ve.
Thanks to AI and new healthcare regulations around data access and price transparency, our client can now automate this soul-crushing work and empower consumers to fight back against this broken system. Beyond medical bills, our clinet helps people through their entire healthcare journey as they pick their health insurance plans and benefits, or look for care that fits their bud

get.

TeamOur client is founded by 2 Oscar Health veterans, the first health insurance company built around a full stack technology platform and a relentless focus on serving its members. They joined Oscar pre-product, stayed through the IPO and helped it grow to over 1M memb

ers.
They've worked across Oscar's entire stack and led many key projects, including its in-house telemedicine platform and claim system. They're proud of how Oscar raised the bar for what people should expect from their health insurance and are excited to have an even larger impact with this compnay by taking the side of consumers unequivocally, regardless of their health insu

rance.
They're lucky to be backed by the founders and investors at Hugging Face, Oscar Health, TrueBill, CaseText, Forerunner Ventures, Red Sea Ventures, RRE Ventures, and much more. Our client is well-funded for the next few

years.
Te

chnologyAt a high level, our assistant analyzes medical bills, identifies potential issues such as errors or undue denials, and helps resolve them. It sends emails, faxes, and letters and acts as a voice co-pilot during phone calls with relevant stakeholders. Additionally, our assistant can accomplish various admin tasks on the web on users’

behalf.
A lot needs to happen under the hood to make all of this

• possible:We must fetch, process, and analyze billing and clinical information from various
• sources.We must interact with humans across multiple mediums (voice, text, documents) and platforms (web, iOS, Android, phone
• , faxes).We must define and orchestrate many multi-step processes driven by LLM agents in cooperation with rich human-in-the-loop inte
• ractions.We need to make real-time recommendations and predictions using complex decision trees maintained in partnership with our clinical and leg

al teams.

And more!
Our client has made a few key foundational technology choices to keep the team hyper-productive as they add all that complex business logic and push the limits of what can be done

• with LLMs:A monorepo with TypeScript for everything (mobile + web, back-end, infrastructure as code, build tools) to make it easy to contribute across the stack and write type-safe and highly concu
• rrent code.A single shared front-end codebase for iOS, Android, and Web using React Native
• + Tamagui.EdgeDB is used as the main transactional database. It includes a highly modern and productive toolset, including a type-safe ORM, builtin GraphQL server, ACLs, branching and migra
• tions, etc.A unified data GraphQL server that aggregates all the data sources seamlessly, making it trivial to query and update data across the stack through a
• single API.All infrastructure is managed with Docker and Pulumi and deployed on AWS to keep everything secure and
• auditable.All asynchronous and long-running jobs are orchestrated with Temporal, simplifying distributed workload
• executio

n.And more!
Ab

• out the roleBe a founding member of this growing team! Help to shape the future success and direction of
• the company.Define and execute the roadmap with the CEO and the rest of the tech team as our client develops a private beta for official launch late
• r this year.Create incredible user-facing experiences and bring features to life from beginning to end—through system design, full-stack programming, launching, and expe

rimentati

• on.
  About youHave engineered software across the stack for 5 y
• ears or more.Have at least 1 year in a hands on technical leadership role such as Tech Lead, Staff or Princ
• ipal EngineerAre excited to be part of
• the mission!Are passionate about creating the best user experie
• nce possible.Thrive in a fast-paced environment, navigating ambiguity with a high degree
• of autonomy.Approach cutting-edge technical challenges with curiosity, tenacity, an
• d creativity.Have strong communication skills, both writte
• n and verbal.Have 10+ years of GPT4 experience—or, failing that, a se
• nse of humor.Bonus: Experience working with Expo, Tamagui

, or GraphQL.
These are ideal qualifications, not minimums. If you don't meet some, you shoul

d still

apply!
Benefits
Ou

• r client offers:A co
• mpetitive salaryMeaningful equity - the goal is for every team member to benefit f
• rom the success!Top-tier medical, vision, and
• dental insuranceOne Me
• dical membershipMental health benefits t
• hrough Talksp