Lead Software Engineer

Nuna
San Francisco, CA
On-site

Who this role is best for

Aimed at senior software engineers who thrive in ambiguous environments and have experience in healthcare or high-trust domains.

Best fit for

  • Senior engineers with a track record of leading small teams and shipping complex systems in regulated industries
    — “Experience leading small teams of engineers
  • Candidates comfortable with AI/agent systems and building scalable backend services
    — “Strong engineering skills with the ability to own a feature or system end to end
  • Individuals who have experience breaking ambiguous problems into shippable solutions
    — “Comfort with ambiguity within your domain — able to move from a rough problem to a shipped solution

Things to consider

  • This role demands end-to-end ownership, including deployment and long-term support of systems
    — “You'll be expected to own real pieces of the product from day one and be responsible for building, shipping, and supporting them in production
  • The position requires a candidate with a bachelor’s degree and at least 6 years of industry experience
    — “Bachelor’s Degree in Computer Science or related field with 6+ years of industry experience

How to stand out

  • Highlight your experience with AI/LLM systems and health data in your resume and interviews
    — “Experience with AI/LLM product systems or agents
  • Emphasize your ability to lead and mentor engineers while aligning with cross-functional stakeholders
    — “Lead and mentor small teams of engineers
  • Showcase your background in building and operating systems with a focus on observability and testing
    — “Experience operating what you build: testing, deployment, and observability
Pace · Fast PacedCollaboration · HighAutonomy · HighDecision Impact · TeamLevel · Senior

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • own meaningful features and services end to end
  • lead and mentor small teams of engineers
  • drive stakeholder alignment
Typical background
software engineeringAI/LLM product systems

Skills & requirements

Required

AI And Agent LogicBackend ServicesApisTestingDeploymentObservabilityPrivacy And Security

Preferred

KotlinTypeScriptReactFlutterHealthcare Data

Stack & domain

AIAgent LogicServicesApisBackend ServicesTestingDeploymentObservabilityPrivacySecurityHealth DataKotlinTypeScriptReactFlutterAi/llm Product SystemsAgentsMobile ExperienceBackend SystemsEarly-stage Or Fast-moving Consumer ProductCommunicationTeamworkLeadershipProblem-solvingStrategic ThinkingAmbiguityCustomer-firstIterationHealthcareAI In HealthcareSoftware Engineering

About the role

Original posting from Nuna via Ashby

Chronic disease isn't managed in a clinic. It is managed at home, in relationships, in the everyday. What's on the dinner table, what gets said, and who notices when someone's struggling. For the 130 million Americans managing a chronic condition, the healthcare system has offered the same answer for decades: a 15-minute doctor's visit, a pamphlet, and a portal login they'll never use.

At Nuna, we are building an AI health coach that shows up like a person who actually has time: available at 3am, infinitely patient, and never behind a waiting room. We use motivational interviewing to help patients and their families see themselves clearly, design experiments that fit their real lives, and navigate a system that has not historically been on their side. We are building from the ground up around a simple belief: patients don't want to be healthy; they want their lives back.

We're not competing with other health apps. We're competing with the moment a person gives up on getting better. If that's a problem you want to work on, we'd like to talk.

YOUR TEAM

We are a small team of engineers, designers, product managers, and clinicians who work together to build for both patients and providers. Our products are only as good as the care and science behind them.

You will be expected to own real pieces of the product from day one and be responsible for building, shipping, and supporting them in production.

THE ROLE

As a Lead Software Engineer, you own meaningful parts of the product end to end: you design them, build them, ship them, and keep them running. You'll work in the systems at the heart of the coach — the AI and agent logic, the services behind it, the data it depends on — and you'll make the day-to-day architecture and trade-off calls within your domain. You'll do this with a high degree of autonomy, and you'll help raise the bar for the engineers around you. Comfort with ambiguity matters here: the work rarely arrives fully specified.

WHAT YOU’LL DO

  • Own meaningful features and services end to end — design, build, ship, and operate them in production
  • Lead and mentor small teams of engineers
  • Drive stakeholder alignment between product, design, data and engineering
  • Make architecture decisions in the systems you work in, including the AI/agent and product systems at the core of the coach
  • Write high-quality, well-tested, observable code, and help others do the same through reviews and pairing
  • Treat privacy, security, and the responsible handling of health data as part of doing the job well
  • Break ambiguous product problems into shippable work, making pragmatic trade-offs to deliver

WHAT WE’RE LOOKING FOR

  • Bachelor’s Degree in Computer Science or related field with 6+ years of industry experience
  • Experience leading small teams of engineers
  • Strong engineering skills with the ability to own a feature or system end to end — backend services, APIs, and the code that ties them together
  • Experience operating what you build: testing, deployment, and observability
  • Comfort with ambiguity within your domain — able to move from a rough problem to a shipped solution
  • Clear communication and the ability to work well across product, design, and engineering
  • A genuine interest in improving healthcare alongside an interdisciplinary team

Bonus Points

  • Experience with Kotlin, TypeScript, React, and Flutter
  • Experience with AI/LLM product systems or agents
  • You've worked with healthcare data, or in another high-trust, regulated domain
  • Mobile experience, or experience bridging mobile clients and backend systems
  • Experience shipping in an early-stage or fast-moving consumer product

Nuna is an Equal Employment Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, genetics and/or veteran status.

#LI-LM1

Source: Nuna careers (Ashby)

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