Staff Software Engineer - Backend/Infra [NYC or SF]

About Concurrence

Concurrence (formerly Amigo) is building the platform healthcare organizations use to build their own clinical AI agents. Our mission is to make excellent care accessible to every patient, not rationed by the limits of clinician time.

Underneath our platform is the Health World Model, which unifies a health system’s data into a living, event-level record of every patient’s care. On top of it, agents handle work across the patient journey, from intake and scheduling to medication management and clinical decision support.

Our agents have supported more than 10 million patient encounters and are on track to grow tenfold this year. We run natively on Databricks, integrate with every major EHR, and are backed by Madrona, General Catalyst, and Optum Ventures. We’re about 35 people, working in person in New York and San Francisco.

About this role

As a Staff Backend/Infra Engineer at Concurrence, you'll build the core services behind our agent platform. The systems you own handle millions of conversations a month, so concurrency, reliability, and clean design are the job itself, not an afterthought. You'll own services end to end, from design through production.

What you'll do

• Designing high-throughput services that handle concurrent conversations at scale

• Owning a core platform service from design to production

• Building systems that stay available and degrade gracefully when things fail

• Handling sensitive healthcare data with the care it requires

• Improving performance, observability, and operational health across services

• Shaping architectural decisions as the platform grows

• Think carefully and holistically about system design under time pressure.

What we're looking for

• You've built and operated production backend systems at scale and owned the outcome

• You're strong with concurrency, distributed systems, and service design

• You prefer simple, maintainable solutions to hard problems

• You debug well across services, queues, and databases

• You're low ego, direct, and hold yourself to a high bar

• You can work on site in New York City or San Francisco

Nice to have

• Experience in a regulated or high-reliability domain (healthcare, finance, legal)

• High-throughput or low-latency system design

• Experience with production AI or ML systems

Benefits (available to Full-Time Employees)

Health & Wellness