Senior Software Engineer

What we're looking for

We need a senior- to staff-level backend or systems engineer with at least 4 years of experience. 6–7 years is ideal, roughly graduating in 2018–2019. You should have built and run reliable, scalable production systems at a fast-growing startup or a top tech company. You should be comfortable owning modules end to end in a fast, in-person team with little hand-holding, and you should already build with AI coding tools like Claude Code and Codex every day. Bonus points if you've built AI agents in production or come from a top engineering school or a company like Meta, Palantir, Sierra, Decagon, Perplexity or ElevenLabs.

What you'll do

• Design and build the platform modules that run operations for the largest outpatient healthcare enterprises, covering scheduling, patient communication, insurance, accounts payable, reconciliation, credentialing and reporting
• Own a product line or vertical from design through build, deployment and operation, and drive reliability, security and lower error rates as Arini adds hundreds of clinic locations
• Work closely with forward deployed engineers, customer success and the CTO/co-founder (Rami) to turn one-off customer solutions into reusable products. For example, you might take the EHR-to-bank reconciliation demo and turn it into a product that works for many enterprises
• Build and operate AI agents in production, with the evaluation, guardrails, observability and client feedback loops that tune them automatically. This is applied agent work, not model training or research
• Lead infrastructure projects from scoping to rollout, such as tools that let non-technical team members configure custom modules for clients
• Design and improve data models, pipelines and integrations into practice management, billing, payment and vendor systems (including ones without APIs), and own on-call and root-cause analysis for what you build