Software Engineer

Blossom Health exists to solve the mental health epidemic in America by partnering with psychiatrists to expand access to affordable, timely, clinically-effective mental healthcare. Our AI-native care platform is loved by hundreds of clinicians and thousands of patients.

We’re a Series A company with $20M+ raised from Headline, Village Global, and the founders of General Catalyst, Flatiron Health, Sword Health, Grow Therapy, Fay, Elemy, Zip, Blank Street, Assured, Bridge, Birches Health, and Enzo Health.

• 🚀 Hyper-growth environment: Get firsthand exposure to how a startup scales from 0→1→n, with visibility across product, engineering, and operations

• 🤝 High trust and autonomy: You’ll own meaningful projects from day one and shape both technical decisions and product direction. We trust engineers to figure out the best path forward - without micromanagement.

• 🧠 Talent-dense team: Work with a top-percentile team built on mutual respect and admiration, with shared goals, motivations, and vision for the future.

• ⚡ Real impact: Your code will directly improve access to mental health care for thousands of patients and clinicians

• Highly motivated, ambitious, and capable - looking to tackle a large, meaningful problem area

• Ownership mindset - thinking for the long-term and placing the business and our customers first

• High velocity and high excellence - have a real sense of urgency to move quickly and take pride in the quality of your work

• An explorer - comfortable with ambiguity and autonomy, seeking to answer questions previously unasked, to leap into the unknown

• An optimist - you believe in a tomorrow better than today

• A builder - you take joy in bringing new creation to the world, in leveraging technology to make useful things

• Humble - you use your gifts in the service of others and understand that success is an output, not an input

• Build and ship AI-native product experiences used directly by clinicians and patients

• Design and develop LLM-powered systems and agents that automate and augment complex healthcare workflows

• Own AI features end-to-end, from prototyping and experimentation through production deployment, evaluation, and iteration

• Build robust evaluation, monitoring, and feedback systems to continuously improve AI quality, reliability, and performance

• Work across models, prompts, tools, retrieval systems, and application infrastructure to solve real-world product problems

• Move quickly from emerging AI capabilities to production-ready experiences that deliver measurable value

• Collaborate closely with clinicians and engineers to understand complex healthcare workflows and determine where AI can have the greatest impact

• Have a bachelor's degree or equivalent experience in Computer Science or a related field

• Have 2+ years of professional software engineering experience outperforming in high-quality environments

• Have experience building and shipping LLM-powered applications or AI products in production

• Are fluent in Python and/or TypeScript

• Have worked with modern LLM APIs, agentic systems, tool calling, retrieval, structured outputs, or similar applied AI patterns

• Think rigorously about evals, reliability, latency, cost, and failure modes, not just whether a prototype works

• Are comfortable moving across the stack and quickly experimenting with new models, frameworks, and techniques

• Love autonomy, ambiguity, experimentation, and ownership

• Are authorized to work in the U.S. and excited to be in-person in NYC 5 days a week

• Competitive salary, equity, growth opportunities

• Best-in-class health, dental, and vision insurance

• A focus on outcomes, not hours, with unlimited PTO

• Team outings, offsites, and a sunny NYC office stocked with snacks