Role

We are seeking a deeply experienced clinician to join our Clinical Product team as a Senior Clinical Specialist, AI Systems.

You will work with our product, engineering, and clinical teams to ensure the outputs of our AI systems that reach our members are clinically correct, clinically useful, and safe. The Clinical Product team is embedded in product development from kickoff. We own the clinical quality bar for surfaces like the Action Plan, the Clinician Note, Health Journeys, and member-facing AI chat. What this role contributes above all is clinical judgment applied to complex clinical scenarios and the ability to translate your findings to diverse cross-functional audiences. You will be contributing both upstream and downstream of our AI efforts. Upstream, you will be involved in supporting the design of monitoring and evaluation systems for our AI products. Downstream, you will be evaluating clinical outputs that incorporate highly diverse data points like blood biomarkers, wearables, omics, imaging, and gut microbiome. You will be inspecting what our AI systems produced to spot inaccuracies, omissions, and any harmful content. While hands-on experience in clinical AI is highly advantageous but not mandatory, a desire to learn how AI systems work is essential. The ideal candidate is comfortable working through ambiguity, meticulous in their attention to detail, self-motivated, resourceful, and capable of thriving in a fast-paced environment. As an early member of this team, your contributions will play a critical role in shaping the future of our member experience as we scale from hundreds of thousands of members to millions.

This role is best suited for those energized by fast-paced environments, excited to build in a high-growth setting, and deeply motivated by our mission at Function. If you're looking for meaningful challenges, dynamic work, and the opportunity to make a real impact, we'd love to meet you.

Key Responsibilities

• Serve as the embedded clinical partner to a product pod, liaising between clinical, product, engineering, and licensed clinicians, and bringing systems-based, root-cause medicine principles into the build.
• Establish deep partnership with Engineering to design and run clinical AI evaluations. Define what "clinically meaningful" output looks like, set quality thresholds, build rubrics, and judge accuracy, clinical intent, omission, hallucination, and medication-safety failure modes against real data.
• Help translate clinical reasoning into technical specification - prompts, context and decision logic - partnering with engineers to identify where clinical logic must be embedded in AI systems rather than described around them.
• Own the clinical quality bar end-to-end for one or more AI product areas - from clinical requirements at kickoff through launch validation and ongoing monitoring.
• Flag when product behavior must evolve as evidence, guidelines, or the clinical standard of care shift.

Qualifications & Required Skills

• MD, DO, or equivalent clinical doctorate, with substantial hands-on clinical practice. You have carried real clinical responsibility for real patients.
• You have deep expertise in one or more clinical domains, ideally with an understanding of systems medicine approaches. You are someone who goes beyond symptoms and diagnostic codes, always striving to identify root causes of clinical imbalances in your patients and understand the multi-dimensional nature of health.
• You can apply strong clinical reasoning under timeline pressure and over long, dense tasks. You can separate what is established, what is plausible, and what is speculative, and educate the team appropriately on each.
• You are genuinely curious about how AI systems work and have a demonstrated ability to pick up technical craft quickly. Prior experience with LLMs, evaluation, or machine learning is not required - the willingness to learn it here, and the rigor to hold it to a clinical standard, is.
• You have exceptional communication skills. You have the ability to adapt clinical information for very different audiences - engineers, PMs, designers, and members.
• A track record of owning something end-to-end in a cross-functional setting and driving it to completion.
• You are comfortable with ambiguous and complex tasks, can operate autonomously under uncertainty on 0-to-1 projects, but know when to ask for support from the team.

Nice to have items:

• You have experience interpreting complex blood biomarkers, advanced imaging, genomics, gut microbiome, and wearable data.
• Any prior exposure to clinical AI products, LLM evaluation, or prompt and context engineering - a strong plus, but explicitly not a requirement; what matters is your curiosity and willingness to learn. We have exceptional internal training opportunities.
• Background in longevity, functional, or root-cause medicine.
• Prior early-stage or high-growth startup experience.

Your dedication to these responsibilities will directly contribute to the success of our platform and the satisfaction of our members. We are looking for a proactive, skilled, and forward-thinking individual to join our team and help shape the future of our services.

To be a strong fit, you embody our Core Values

• Ruthless Prioritization:
  • We don't let perfect get in the way of progress.
  • We move quickly to drive value, not perfection.
  • We prioritize what drives impact.
  • We never compromise on standards of excellence.
• Member-First, Always:
  • We design and deliver like we're caring for someone we love.
  • We create calendar, actionable, human experience.
  • We prioritize responsiveness, peace of mind, and outcomes.
  • We empower members with truth, clarity, and care.
• One Team, Moving Fast:
  • We are aligned in purpose, prioritization, and speed.
  • We gather diverse perspectives to make informed decisions.
  • We clear paths for each other and move fast together.
  • We communicate clearly and respectfully, rallying around shared goals.
• Radical Ownership, Relentless Execution:
  • We don't just ship- we own outcomes and drive results.
  • We act with urgency and precision
  • We anticipate, initiate, and follow through.
  • We meet challenges with grit and pragmatism.
  • We embrace new tech to deliver better outcomes.
• Mission Over Ego:
  • We are ruthlessly aligned to our mission - and leave ego at the door.
  • We disagree and commit.
  • We don't tolerate politics or withholding information.
  • We operate with honesty, transparency, and respect.
• Sustained Integrity in Every Detail:
  • We earn trust by obsessing over accuracy, quality, and clarity in everything we do.
  • We prioritize clinical precision - data must be right.
  • We sweat the details because outcomes depend on them.

Why You'll Love Working With Us

We value our team at Function and offer a competitive salary and benefits package, flexible working hours, and a dynamic work environment where creativity and innovation are encouraged. If you are a highly motivated and experienced individual who is passionate about using technology to improve people's lives, we would love to hear from you.