Head of Infrastructure

Company Overview:

Function Health is the AI operating system for health, designed to empower people to live 100 healthy years. We are redefining how individuals understand, measure, and improve their health by moving beyond the limitations of traditional care and enabling comprehensive, continuous insight into human biology. Function has been recognized as one of Fast Company’s Most Innovative Companies of 2024, and is venture-backed by Redpoint and other leading venture firms. Over half a million members have joined Function to take control of their health.

Through comprehensive lab testing, MRI and CT imaging, longitudinal data, and guidance from AI and clinical teams, Function gives members a complete and continuous view of their health, and the clarity to act on it. Through acquisitions across imaging, mobile phlebotomy, and supplement tracking and optimization, Function is building an integrated health platform that spans the full path from testing to health clarity to daily action.

Function recently announced a $298M Series B and is entering its next chapter of growth. As we scale, the reliability, security, and flexibility of our infrastructure will directly shape our ability to serve members everywhere, expand internationally, and ship quickly without compromising trust.

We are growing our team and seeking out world-class talent that deeply believes in our mission to positively impact global health, has a relentless bias toward action, and a growth mindset. Function fosters a collaborative and dynamic environment where every day we build the future.

Role:

We are hiring a Head of Infrastructure in Engineering, Product & Data (EPD), reporting to our Sr. Director of Engineering. This leader will own the foundation every Function product runs on: Site Reliability Engineering and the infrastructure platform, including databases, compute, containers, networking, and cross-service and VPC communication, across Function Health, Ezra, Suppco, and Getlabs.

Function is moving from a single-market product into its next stage of growth, including international expansion. This role will design the long-term infrastructure architecture to support that: multi-region deployment, data residency, latency, and compliance boundaries. You will also set the reliability and cost standards (SLOs, on-call, incident response) that let us scale confidently as the member base and the number of businesses on the platform grow.

This is a hands-on leadership role, not a pure people-management seat. You will lead the Infrastructure team while staying close enough to the technology to evaluate tradeoffs across infrastructure and deployment yourself.

What makes this compelling: You will have end-to-end ownership of the platform at a company with real scale, a fresh Series B, and a mission that matters. You will shape architecture decisions that will last for years, unify infrastructure across a growing family of acquired companies, and build the foundation for global expansion in a regulated, high-trust domain.

Key Responsibilities:

• Own the infrastructure platform end to end. Lead SRE and the infrastructure platform (databases, compute, containers, networking, and cross-service/VPC communication) across FH, Ezra, Suppco, and Getlabs, with the outcome of a secure, reliable, and consistent foundation for every product team.
• Architect for global scale. Define and drive the long-term architecture evolution for international expansion, including multi-region topology, data residency, latency, and compliance boundaries, so new markets can launch without re-platforming.
• Set and enforce reliability standards. Establish SLOs, error budgets, on-call practices, and incident response and postmortem processes, with the outcome of measurably higher availability and faster recovery.
• Drive cost efficiency at scale. Build visibility into infrastructure spend, make informed build, buy, and consolidate decisions, and keep unit costs healthy as usage grows.
• Unify infrastructure across the Function family. Align infrastructure practices, tooling, and networking across acquired companies, reducing duplication and risk while preserving delivery speed.
• Lead and grow the Infrastructure team. Hire, coach, and set direction for infrastructure and SRE engineers while remaining hands-on in design reviews, architecture decisions, and critical incidents.
• Partner across EPD, Security, and Clinical/Compliance. Work closely with engineering and product leaders, security, and compliance stakeholders to make sound trade-offs on infrastructure, deployment, and regulatory requirements, and with executives on roadmap, investment, and risk.

Qualifications/Skills:

• 8 years in infrastructure, SRE, or platform engineering, including [3+] years leading teams. Demonstrated by: progression from hands-on engineer to technical leader.
• Has previously scaled a platform through a major growth stage (for example, a multiple-x increase in users, traffic, or number of services). Demonstrated by: being able to describe what broke, what you re-architected, and what you would do differently.
• Deep expertise in cloud infrastructure [GCP/AWS: confirm], containers and orchestration, networking (including VPC design and cross-service communication), and production database operations.
• Experience designing for multi-region, data residency, or other compliance-driven architecture. Demonstrated by: having shipped or led a multi-region or regulated-data design.
• Has defined and operated reliability programs: SLOs, on-call rotations, incident command, and blameless postmortems.
• Comfortable making and explaining trade-offs among reliability, speed, cost, and security to both engineers and executives. Situations you will face: deciding whether to invest in a re-architecture or a patch while a launch deadline is approaching, or choosing where data may live when two regions’ requirements conflict.
• Hands-on technical credibility: you can review designs, debug in production, and earn the respect of senior engineers.
• Bachelor’s degree in Computer Science, Engineering, or equivalent experience.

Preferred Qualifications:

• Experience in healthcare, health tech, or other regulated environments (HIPAA, SOC 2, international privacy regimes).
• Experience integrating infrastructure across acquired companies or multiple business units.
• Stretch scope (for the right candidate): Interest in leading AI and developer productivity, including AI tooling and enablement across EPD and DevX tooling toward an agentic-first “Software Factory.”

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 clear, actionable, human experiences.
  • 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.

At Function, we celebrate diversity and are committed to building a diverse and inclusive workforce. As an equal opportunity employer, we do not discriminate on the basis of race, color, gender identity, ancestry, religion, age, sexual orientation, national origin, disability, marital status, Veteran status, or any other occupationally irrelevant criteria.

Join the Function Health team and become a part of our mission to build a healthier future for all. Discover more about us and how we’re changing the face of healthcare at Function Health.

Important Notice: Legitimate communication from the Function Health team will always come from an email address ending in @functionhealth.com. Function Health will never request personal information such as banking details or payment during the hiring process. Please be cautious of communications or job offers that come from other email domains, instant messaging platforms, or unsolicited calls. If you ever have doubts about the legitimacy of a communication, please reach out to us directly at [email protected].