About the Role

We’re hiring a Staff Software Engineer to take ownership of critical, user-facing backend systems at RadiantGraph.

This role is centered on shipping and running products. You’ll own backend systems that power real customer interactions - things like real-time voice calling, outbound messaging, workflow execution, retries, scheduling, and state management - where correctness, reliability, and speed all matter.

You’ll operate with high autonomy in a fast-moving environment, working closely with other senior engineers and product leaders to turn incomplete or evolving product requirements into systems that work in production. This role is for someone who has built and operated complex backend systems before and wants meaningful ownership without layers of process or bureaucracy.

About RadiantGraph

RadiantGraph is on a mission to help healthcare organizations leverage AI and machine learning to better understand and engage with consumers. Personalization drives higher consumer adoption and engagement with health benefits and improves clinical engagement and long-term healthcare costs. Eight out of ten consumers say they would use preventative health benefits more if they were offered an experience tailored to their individual needs. Radiantgraphs’ platform today supports leading healthcare organizations in substance abuse, mental health, chronic conditions, MSK, and other complex healthcare. RadiantGraph is led by an experienced team of healthcare leaders formerly from Livongo, Teladoc, Ginger, Wheel, Virta, and more. Funded by True Ventures, XYZ Ventures, and other notable investors, RadiantGraph was recently listed as one of Business Insiders “25 Healthcare Startups Set to Take Off in 2024.” Learn more at radiantgraph.com.

What You’ll Do

• Own and evolve backend systems that execute customer-facing actions in production, including real-time and asynchronous workflows.

• Build and operate services responsible for things like outbound voice calls, messaging, scheduling, retries, and stateful execution.

• Design and maintain APIs using Python (FastAPI) that support high-throughput, failure-tolerant execution paths.

• Take responsibility for how systems behave in production: observability, failure modes, recovery, and performance.

• Translate product intent into backend designs that are pragmatic, shippable, and resilient.

• Partner closely with other senior engineers to deliver roadmap-critical work without becoming a bottleneck.

• Make architectural decisions within your domain, balancing speed, simplicity, and long-term maintainability.

• Mentor other engineers through pairing, reviews, and examples, without formal people management.

• Collaborate directly with product, data, and customer-facing teams to deliver end-to-end outcomes.

• Step outside strict backend boundaries when needed to unblock execution and ship.

Qualifications

• Has operated effectively at the Staff Engineer level (or equivalent), typically with ~8+ years of experience shipping production systems.

• Proven experience owning user-facing backend systems end-to-end.

• Deep experience building backend services in Python (FastAPI, Django, Flask, or similar).

• Strong API design skills (REST, OpenAPI).

• Solid understanding of data modeling and persistence (PostgreSQL or similar).

• Experience designing and operating asynchronous systems, background workers, and stateful workflows.

• Comfortable making technical tradeoffs under real-world product and timeline constraints.

• Experience working in small teams with high ownership and minimal process.

• Clear communicator who can reason through technical and product problems with peers.

• This is a HYBRID role in office 2-3 days a week.

Bonus Points

• Experience building systems that trigger real-world actions (voice, SMS, email, notifications, job execution).

• Exposure to AI-enabled product surfaces (model outputs, decisioning systems, inference integration).

• Experience operating production systems in AWS.

• Familiarity with regulated or compliance-heavy environments (HIPAA, SOC2).

• Comfort occasionally contributing frontend changes (TypeScript/React) to unblock delivery.

Compensation Range: $188K - $240K