Senior Software Engineer - Backend

The Role

You will design and build the backend systems powering the Quadrivia clinical AI platform—including high-availability services, event-driven architectures, data pipelines, and the orchestration layers used by our clinical AI agents (see pages 15–20 on orchestrator and knowledge base).

This role is deeply hands-on, technical, and foundational to our reliability, safety, and performance.

Key Responsibilities

• Implement, and maintain backend service (not tiny microservices—well-designed domain-driven boundaries).

• Build scalable systems for supporting customer features and operational platform.

• Implement resilient, high-throughput data pipelines.

• Ensure accuracy, safety, and compliance in all system interactions with clinical data.

• Own reliability: observability, fallback strategies.

• Collaborate closely with AI, Clinical, QA, and Security teams.

• Write clean, test-driven, maintainable code.

• Validate and own all AI-generated code contributions.

Required Experience

• Healthcare related experience working under SOC2/ISO27001, HIPAA/GDPR, or medical device regulatory requirements.

• 10+ years in backend engineering with high-scale distributed systems.

• Expert in Python, FastAPI, async systems, and event-driven architectures.

• Strong knowledge of object and relational database, caching, message stream, message queues.

• Engineering standards: DDD, CQRS, Design Patterns, SOLIP Principles, DRY, KISS, TDD

• Cloud & DevOps literacy: GCP, Kubernetes, Docker, Terraform

• Deep understanding of resilient systems, fault tolerance, and high availability.

• Excellent communicator—clear, structured, concise, preferably following S.T.A.R/S.A.R or related.

• Culture fit: kind, exceptionally smart, mission-driven, field expert.

• Healthcare related experience working under SOC2/ISO27001, HIPAA/GDPR, or medical device regulatory requirements.

Nice to Have

• Knowledge of Hexagonal Architecture, CQRS

• Experience with ML Ops, RAG, LLM workflows, voice agents, STT/TTS diarization.

• Exposure to telephony/VoIP infrastructure.

What Success Looks Like

• Quadrivia's backend systems become a global reference for reliability, safety, and performance.

• Your services operate with >99.99% availability under strict regulatory constraints.

• Engineers can build new clinical workflows and agent capabilities rapidly and safely.

• AI-generated code is consistently elevated, corrected, and owned by you.