Full Stack Engineer

Nxt Level; San Francisco (CA); Hybrid; USD 180,000 - 240,000; Full time

Job summary

Nxt Level is building an AI-native healthcare platform that delivers private AI health guidance along with affordable visits with human physicians. We seek a Senior Product Engineer, Full Stack, to own features across the entire stack in a hybrid model across New York City or San Francisco where teammates collaborate closely in product, clinical, and AI groups.

The role combines frontend and backend work across patient onboarding, AI consultations, health records, and clinical workflows, with

Qualifications

• 5+ years of experience in software product engineering.
• Experience shipping user-facing products across frontend and backend systems.
• Ability to own features across the stack from definition to production.

Responsibilities

• Build patient experiences across onboarding, AI consultations, health records, prescriptions, and visits.
• Connect AI consultations with clinical workflows to enable treatment.
• Own projects from initial definition through launch and production support.

Skills

Full-stack product engineer

Ownership

Autonomy

Clear communication across teams

Frontend and backend experience

Tools

Next.js

React

TypeScript

Swift

Kotlin

Python

FastAPI

MariaDB

SQLAlchemy

Redis

Celery

Docker

AWS ECS

FHIR-based workflows

Job description

Location: New York City or San Francisco - Hybrid 3 days per week

Work Style: Hybrid

Employment Type: Full-time

Compensation: $180K–$240K base salary + equity

Focus: Full-Stack Engineering, AI Healthcare, Patient Experience, Clinical Workflows

About Our Client

Our client is building an AI-native healthcare platform that gives people free, private access to AI health guidance and affordable visits with human physicians.

Millions of consultations already flow through the product, and the company is scaling quickly across patient experience, clinical operations, healthcare integrations, and AI-powered care delivery.

This is an opportunity to join a small, senior engineering team building real healthcare products used by patients, clinicians, and healthcare partners.

About the Role

Our client is hiring a Senior Product Engineer, Full Stack to build and ship features across the entire product.

This is not a frontend-only or backend-only role. Product engineers are expected to own complete features across the stack. A project may include a patient workflow in Next.js, a FastAPI endpoint, a new data model, and changes to how a service runs in production.

The team works AI-natively. Coding agents are part of daily delivery, not an occasional assistant. Engineers use agents to explore code, plan changes, implement, test, review, debug, and automate repeated work — while remaining responsible for product decisions, system design, and correctness.

What You’ll Do

• Build patient experiences across onboarding, AI consultations, health records, prescriptions, physician visits, and follow-up care
• Connect AI consultations with clinical workflows so patients can move from guidance to treatment
• Turn new clinical and AI capabilities into clear product features with appropriate safeguards
• Build tools and integrations for clinicians and healthcare partners
• Work across frontend, backend, data models, APIs, and production infrastructure
• Improve performance, accessibility, privacy, and reliability across web and mobile experiences
• Use coding agents to run parallel investigations, shorten the path from idea to production, and automate repeated engineering work
• Review product usage and customer feedback after launch, then improve the feature
• Partner closely with clinical, product, design, AI, operations, and engineering teams
• Own projects from initial definition through launch and production support

What We’re Looking For

• Experience shipping user-facing products across frontend and backend systems
• Strong skills in at least one part of the stack, with the ability to work effectively across the rest
• Good product judgment and strong attention to interface quality
• Ability to define and deliver solutions when requirements are incomplete
• Daily experience directing coding agents
• Ability to provide context to agents, split work effectively, verify outputs, and know when to work directly
• Habit of turning manual engineering work into scripts, tools, or reusable agent workflows
• Sound judgment around privacy, security, accessibility, reliability, and maintainability
• Clear communication across clinical, product, design, AI, and operations teams
• Strong ownership and comfort operating in a high-autonomy engineering environment

Many candidates will have 5+ years of professional experience. Our client cares more about the products you have shipped and your role in shipping them than a specific degree or exact tool match.

Bonus Experience

• Experience in healthcare, fintech, AI products, or another regulated industry
• Experience building patient-facing, clinician-facing, or partner-facing healthcare software
• Experience with telehealth systems, healthcare APIs, FHIR workflows, or clinical operations
• Experience improving coding-agent workflows, automation, or AI-assisted engineering systems
• Experience working in small, senior engineering teams with high ownership

Production Stack

Relevant technologies include:

• Next.js
• React
• TypeScript
• Swift
• Kotlin
• Python
• FastAPI
• MariaDB
• SQLAlchemy
• Redis
• Celery
• Docker
• AWS ECS
• AI provider integrations
• FHIR-based workflows

Experience with every part of the stack is not required. The right candidate should be able to learn unfamiliar systems and ship across product and backend code.

How the Team Works

• Small, senior engineering team with high autonomy
• Engineers own projects from definition through launch and production support
• Short planning cycles and frequent releases
• High standards for patient safety, privacy, reliability, and code quality
• AI-native development workflows are part of daily engineering delivery

Why This Opportunity

• Build AI-native healthcare products used by millions of patients
• Work on features that connect AI guidance with real clinical care
• Own full-stack product development across patient, clinician, and partner workflows
• Join a small, senior team where individual engineers have meaningful product impact
• Use coding agents as a core part of how software gets built
• Work in a high-stakes environment where safety, privacy, and reliability matter
• Help shape the next generation of healthcare access and AI-powered care delivery
• Meaningful equity

Ideal Candidate Profile

The ideal candidate is a senior full-stack product engineer who wants to build real healthcare products used by real patients and clinicians.

They are product-minded, technically strong, comfortable across the stack, and AI-native in how they work. They can own ambiguous problems, ship complete features, use coding agents effectively, and maintain strong judgment around safety, privacy, reliability, and user experience.

This person does not want to sit in a narrow frontend or backend lane. They want to own the outcome.