Senior Software Engineer - Fullstack

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 quality and durability of our People systems, data, and insights will directly shape our ability to attract, retain, and support exceptional talent.
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

As a Senior Full Stack Developer on the imaging team, you will be a technical leader who architects, builds, and scales the web platforms that power our cancer‑screening experience. You’ll mentor engineers, drive best practices, and ensure that our .NET‑based backend and modern Vue frontend work seamlessly together to deliver reliable, secure, and delightful products that save lives.
We are seeking a collaborative and detail-oriented developer who thrives in a supportive and mission-driven environment. Must have a problem-solving mindset, excellent communication skills, and the ability to clearly articulate technical concepts. This position will align well if you enjoy working as part of a team, have a human-centered approach to technology, and are passionate about the positive impact your work can have on people's health.
Our technical interview process is language-agnostic.

Key Responsibilities

• Join a passionate and collaborative team dedicated to groundbreaking health solutions.
• Deliver full‑stack solutions, from crafting customer-facing UIs to optimizing database queries and owning the interactions between all layers.
• Lead design and delivery of end‑to‑end features across the stack, with an emphasis on high‑performance ASP.NET Core services.
• Architect clean, maintainable, and secure APIs that integrate with EMRs, imaging partners, and AI services.
• Mentor & coach other engineers through code reviews, pair programming, and design sessions.
• Collaborate closely with product, design, and clinical teams to translate requirements into intuitive desktop, tablet, and mobile experiences.
• Own quality and define automated test strategies (unit, integration, e2e) and champion CI/CD and DevOps in Azure.
• Drive continuous improvement by introducing best‑in‑class engineering practices, performance tuning, and observability.
• Shape technical roadmap and contribute to development planning, daily stand‑ups, and retrospectives in our Agile process.

Qualifications/Skills

• Bachelor’s degree in Computer Science, Software Engineering, or a related field.
• Full-stack experience with demonstrated ownership of both modern frontend and backend in production.
• Experience designing microservices, RESTful APIs, and event‑driven systems; shaping data models and domain boundaries.
• Deploying and operating workloads in Azure (or AWS/GCP) using IaC, containerization (Docker/Kubernetes), pipelines, and monitoring.
• Deep experience with SQL Server.
• Proficiency in implementing automated testing with xUnit/NUnit/Jest/Playwright and enforcing clean code standards.
• Proven track record of mentoring engineers, leading projects, and influencing engineering strategy.
• Excellent written & verbal communication and a bias for collaboration in a cross‑functional, Agile environment.

Nice-to-Have Skills and Experiences

While the core competencies are essential, the following qualifications will distinguish exceptional candidates:

• Experience with DICOM, HL7/FHIR, or other healthcare standards.
• Background in security & compliance (HIPAA, SOC 2).
• Passion for responsive design, PWAs, and accessibility.
• Experience with Python, GCP & FastAPI a plus for future initiatives.

Why You'll Love Working With Us

As a Senior Full Stack Developer, you'll have the opportunity to make meaningful contributions within a fast-growing organization committed to early cancer detection. You’ll also have access to:

• Stock options.
• Comprehensive health, dental, and vision plans for you and your family.
• Flexible work environment.
• Team off-sites and wellness initiatives.
• Competitive vacation policy.
• A culture that emphasizes continuous learning and personal growth.

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].