Senior Full Stack Engineer

About Us
Atomic is a venture studio that co-founds companies by pairing founders with the best ideas, teams, resources, and funding those with the most potential. When entrepreneurs co-found Atomic, they team up with an experienced group of operators who have started dozens of companies and created billions of dollars in enterprise value. Industry disruptors like Bungalow, Found, Hims & Hers, Homebound, OpenStore, and Replicant all started at Atomic, along with dozens more.
Founded in 2012 by serial entrepreneur Jack Abraham, Atomic is headquartered in Miami and San Francisco with a distributed team across North America.
Company Overview
We’re a pre-launch company backed by Atomic VC, building a tech-enabled platform that supports seniors navigating life-changing specialty care. Our mission is to help them maximize their quality of life within a complex, high-cost healthcare system.
We’re looking for a Senior Full Stack Engineer to join as a foundational member of our engineering team, reporting to the Engineering Lead. In this role, you’ll take on technical leadership and architecture ownership while staying hands-on in code. You’ll help set the technical direction, build scalable systems, and shape our early engineering culture.
This is a rare opportunity to define the future of a mission-driven startup, working alongside a small, high-caliber team to solve deeply meaningful problems with immediate real-world impact.

What You'll Do

• Develop a deep understanding of our vision, the complexities of our business model, and the challenges faced by our patients and care team.
• Work directly with our pilot partners, clinicians, and patients to build elegant technical solutions that address their needs.
• Define and drive both the medium and long-term technical strategy, balancing business needs, user feedback, and startup agility.
• Own the architecture across the stack (backend, frontend, and infrastructure), ensuring scalability, reliability, and flexibility.
• Lead the development and launch of our minimum viable product (MVP), with a strong emphasis on backend systems.
• Establish a data engineering strategy to unify disparate data sources into an analysis-ready state.
• Make foundational improvements to our infrastructure and lay out the medium-term technical roadmap.
• Continue to develop and Identify practical applications and use cases for LLMs and related AI advancements to enhance our platform.

Our Tech Stack & Architecture

• Backend: Rust (primary), Python (supporting services)
• Frontend: TypeScript, React
• Infrastructure: AWS, Pulumi (TypeScript) for IaC
• Data: PostgreSQL, Valkey

What You'll Bring

• 6+ years of professional software development experience
• …