Full Stack Engineer (FE Focus) - Atrix

At Atrix AI, we believe life sciences teams deserve more than just data—they deserve answers.

Medical affairs and commercial teams sit on mountains of messy, unstructured information that could impact patient outcomes, if only they could make sense of it. Atrix is helping the world’s most innovative companies in pharma and medtech turn AI into a trusted ally for clinical decision-making.

We’re on a mission to make AI-native workflows that are fast, intuitive, and impactful—without compromising on compliance, privacy, elegance, or trust. We’re backed by top-tier venture capital firms in San Francisco and New York, giving us the support to move quickly and build ambitiously.

We're a small, focused team working fast, listening to customers, and shipping quickly. If you love building beautiful products, translating real-world complexity into intuitive UX, and want your code to power decisions that improve lives, you’ll thrive here.

The Role Description

You’ll be a core builder of the Atrix AI-native platform, designing and shipping features that turn complex healthcare and AI workflows into intuitive, elegant interfaces, trusted by scientific, medical, and commercial teams across top pharma companies.

From crafting thoughtful front-end UX to building robust backend systems, you’ll help bridge our AI core with real-world customer pain points, working on problems that genuinely move the needle in patient care.

We’re building a modular, agentic platform that connects to customer-approved data sources, transforms messy, unstructured data using advanced AI, and delivers structured, actionable insights that drive decisions in regulated environments.

You’ll tackle rich engineering challenges across:

• ⚡️ Performance — We’re processing large data sets at once

• 🔐 Security & Privacy — Customers trust us with sensitive data

• 🧠 Explainability — AI outputs must be verifiable and traceable

• 🧩 Composable UI/UX — Interfaces need to adapt to varied use cases, from chat to dashboards to spreadsheets

You’ll work closely with our Engineering Lead and CEO, and collaborate as a peer to product, design, and GTM leadership. As one of our earliest engineers, you’ll help define technical architecture, influence product strategy, and set the tone for future engineering hires.

💡 This is an in-person role based in NYC, with flexibility for remote work on some days as needed.

Responsibilities

This role is perfect for someone who is customer-obsessed, technically fluent, and thrives in fast-moving startup environments. If you love the challenge of translating AI workflows into intuitive product experiences in a high-stakes industry, we want to talk to you.

In this role, you will:

• Own and evolve our web stack (React/Next.js + Python) to support fast, reliable AI-native workflows

• Collaborate directly with product and design to shape user-facing features from spec to ship

• Translate complex backend data structures into intuitive, delightful interfaces

• Debug and improve frontend and backend systems to increase performance and reduce latency

• Attend key customer and sales meetings to understand real-world workflows and incorporate feedback into product design

• Drive architectural improvements to support scale, modularity, and developer velocity

• Take full ownership of core product modules across the stack.

Must haves

• 5+ years experience as a fullstack or frontend-focused engineer

• Previous B2B and startup experience required

• Expertise in React/Next.js and frontend systems architecture

• Comfortable working across the stack in Python when needed

• Passionate about user experience and shipping polished, performant UIs

• Proven ability to own projects end-to-end, from planning to deployment

• Experience with distributed systems, APIs, and performance optimization

• Desire to get involved in customer meetings, hear their feedback, and help translate that to a delightful experience

Nice to haves

• Experience in life sciences, health tech, or AI-driven applications

• Familiarity with prompt engineering or building tools on top of LLMs

• Obsession with elegant design and developer velocity

Why Join Atrix as a Fullstack Engineer?

🚀 Mission-Driven Impact
Your work will help life sciences teams deliver the right treatment to the right patient—faster. Real-world clinical outcomes start with better tools, and you’ll be building them.

👨‍⚕️ Customer-Centric & High-Stakes
You won’t be building in a vacuum. You'll work directly with top-10 pharma companies to understand how AI can transform medical workflows—this is high-impact, high-visibility work.

🧱 End-to-End Ownership
Own major parts of the stack, shape technical architecture, and influence product direction from day one.

🌱 Early Stage, High Growth
We're small and moving fast. You’ll help shape both the technology and the culture as we scale.

🧠 Tech Meets Trust
Design AI-native workflows that scientific and medical teams trust and depend on daily.

📈 Clear Growth Path
Opportunity to grow into a Lead Frontend or Fullstack Tech Lead role as we expand the engineering team.

What we offer

💪 Health & wellness support – Stipend + medical (vision, dental, health) insurance coverage
🌴 Unlimited PTO – Recharge when you need to