Senior Backend Software Engineer

Senior Backend Software Engineer – Startup – New York * Visa sponsorship not available, US Citizens only. Please do not apply if you are seeking sponsorship*Senior Backend Software Engineer is required by a startup building a technology platform for behavioural health organizations to enhance mental health care delivery using AI. You should have 10+ years of professional backend software development experience who has a proven track record of delivering backend services end-to-end: designing APIs, building scalable systems, and deploying to production. You should be comfortable architecting solutions from scratch, navigating extreme ambiguity, and distilling competing priorities into clear, actionable technical designs. Bonus points if you have experience with or a strong interest in HIPAA-compliant infrastructure and healthcare data systems.Requirements 10+ years of experience in professional backend software developmentExperience with backend development, focusing on API development, cloud infrastructure, data security, and system reliabilityExperience at both big tech (e.g., FAANG) and early stage start-upsExperience in Golang, Node.js, TypeScript, REST APIs, Firebase/Firestore, Cloud Run, Google Cloud Platform, Zod/schema validation, PulumiExperience working at both big tech (e.g., FAANG) and high-growth startupsProven track record of building backend infrastructure and frontend experiences.Experience with observability and monitoring tools.What you'll do: Design and implement scalable backend services, APIs, and data pipelines that power our patient and therapist-facing applications.Build and maintain cloud infrastructure on GCP.Ensure HIPAA compliance across all services, implementing proper PHI handling, audit trails, and security controls.Create robust, well-documented REST APIs with proper validation, error handling, and monitoring.Implement logging, monitoring, and alerting to ensure system health and quickly diagnose issues.Work closely with Frontend, Product, and Clinical teams to define technical requirements and deliver integrated solutions.Tech stackGolang, Node.js, Cloud Run, TypeScript, Firebase/Firestore, Google Cloud Platform, REST APIs, Zod/schema validation