abridge·Software Engineer·Onsite - System Design / Architecture
Apr 2026
System design round at Abridge for a software engineering role, focused entirely on redesigning a medical audio pipeline. The scope was pretty wide, covering security, compliance, and performance all at once, which made it feel less like a single question and more like a 45-minute architecture conversation.
- You have a medical audio pipeline: audio in, speech-to-text, LLM summary, then persistent storage. Redesign it to be both secure and compliant with healthcare data requirements, and also make it performant at scale.
- How would you handle access control and auditability for a pipeline processing sensitive patient data?
- How do you defend against prompt injection in an LLM pipeline that processes medical transcripts?
- Walk me through how you'd make this pipeline reliable, specifically around retries and handling failures.
- What performance optimizations would you apply to the transcription and LLM summarization steps to reduce latency and cost at scale?
“This one is deceptively wide.” The rest of the author's notes on Software Engineer interview at abridge, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.
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