Internship Nestjs Developer Jobs in California (NOW HIRING)

About the Role:
Join the team responsible for the products at the heart of how Hinge Health delivers care for musculoskeletal (MSK) conditions. This team owns our core MSK programs and the build-out of new ones, like our recently launched migraine offering, that let us scale the business into new conditions and reach more members.
As a Staff Engineer, you'll help take new programs of care from early concept to a stable, scaled offering, then keep sharpening what already works. That means building the greenfield features that make a new program a real, differentiated offering, not just an existing treatment experience with a new label. It also means extending and hardening the shared services that power all of our programs. You'll work closely with Product and with engineers across multiple partner teams to ship a coherent, end-to-end program of care for our members.
What You'll Accomplish

• Lead through influence: Take on the team's most ambiguous or technically complex problems, setting direction through your own technical work, design docs, and mentorship rather than through formal authority. Sometimes that means digging into the platform itself, when that's what's holding the team back from scaling into new programs of care.
• Bring new programs of care to life: Lead the technical design and delivery of new MSK programs (in the vein of our migraine launch), building the features and workflows that make each program a credible, differentiated offering.
• Strengthen what's already live: Take newly launched programs from shipped to stable and scaled, improving reliability, performance, and quality as usage grows.
• Extend our shared platform: Design and build within our existing services (NestJS backend, React Native app, PostgreSQL) to support new programs without fragmenting the platform.
• Partner deeply with Product: Work hand-in-hand with Product to translate program strategy into technical plans, surfacing trade-offs and options as scope evolves.
• Collaborate across teams: Coordinate closely with engineers on partner teams to deliver a cohesive member experience across the many services and teams a program touches.
• Elevate engineering practices: Champion strong practices around CI/CD, testing, and monitoring. Mentor other engineers and raise the bar for the team.

Who You Are

• A Technical Visionary: You navigate ambiguity well and can turn a broad product goal, like "launch a new program of care," into a concrete, scalable technical plan.
• A Builder Across Horizons: You're equally comfortable in 0→1 greenfield work and in the less glamorous work of hardening something already live.
• A Force Multiplier: You raise the level of everyone around you through code review, mentorship, and by setting technical standards that reduce friction.
• A Natural Collaborator: You thrive working across team boundaries, with Product and with engineers on other teams, to deliver something coherent even when the work spans many services and owners.

Basic Qualifications

• 5+ years of non-internship full-time professional software engineering experience
• 2+ years of experience with TypeScript/JavaScript across the stack (Node.js/NestJS on the backend; React or React Native on the frontend).
• 2+ years of experience with cloud platforms (AWS preferred) and containerization tools.
• 2+ years of experience with relational databases (PostgreSQL or similar), distributed systems, and microservices architectures.
• 2+ years of experience mentoring or leading other engineers and collaborating effectively across cross-functional teams.

Preferred Qualifications

• NestJS & React Native: Direct experience with NestJS. Any mobile app development experience is a plus (React Native or otherwise).
• Multi-team delivery: Experience shipping a product or feature that required close, ongoing coordination across several engineering teams, not just your own.
• Regulated Industry Knowledge: Experience working within healthcare (HIPAA) or other highly regulated environments involving sensitive member data.
• High-Influence IC Track Record: A track record of operating as a high-influence individual contributor at the Staff level, shaping technical direction and raising the bar for a team without having direct reports.

About Hinge Health
At Hinge Health, we're using technology to scale and automate the delivery of healthcare - starting with musculoskeletal (MSK) conditions, which affect over 1.7 billion people worldwide. With an AI-powered human-centered care model, Hinge Health leverages cutting-edge technology to improve outcomes, experiences and costs to help people move beyond their pain. The platform addresses a broad spectrum of MSK care - from acute injury, to chronic pain, to post-surgical rehabilitation - through personalized, evidence-based care. As the preferred partner to 60+ health plans, PBMs and other ecosystem partners, Hinge Health is available to over 20 million people across more than 2,800 employers. The company is headquartered in San Francisco with additional offices in Montreal and Bangalore. Learn more at http://www.hingehealth.com.
What You'll Love About Us

• Inclusive healthcare and benefits: On top of comprehensive medical, dental, and vision coverage, we offer employees and their family members help with gender-affirming care, tools for family and fertility planning, and travel reimbursements if healthcare isn't available where you live.
• Planning for the future: Start saving for the future with our traditional or Roth 401k retirement plan options which include a 2% company match.
• Modern life stipends: Manage your own learning and development.
• Grow with us: Grow with us through discounted company stock through our ESPP with easy payroll deductions.

Culture & Engagement
Hinge Health is an equal opportunity employer and prohibits discrimination and harassment of any kind. We make employment decisions without regards to race, color, religion, sex, sexual orientation, gender identity, national origin, age, veteran status, disability status, pregnancy, or any other basis protected by federal, state or local law. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. We provide reasonable accommodations for candidates with disabilities. If you feel you need assistance or an accommodation due to a disability, let us know by reaching out to your recruiter.
By submitting your application you are acknowledging we are using your personal data as outlined in the personnel and candidate privacy policy.
Beware of Phishing Attempts: We've noticed an increase in phishing where fraudsters impersonate employees and send fake job offers to steal sensitive information. We'll never ask for financial details during the hiring process and only use "@hingehealth.com" emails. If you receive a suspicious offer, stop communication and report it to the US FBI Internet Crime Complaint Center. To verify an email from our recruiting team, forward it to security@hingehealth.com.
Hinge Health Hybrid Model
We believe that remote work and in-person work have their own advantages and disadvantages, and we want to be able to leverage the best of both worlds. Employees in hybrid roles are required to be in the office 3 days per week, for the full 8 hours of a typical business day. The San Francisco office has a dog-friendly workplace program.
Beware of Phishing Attempts: We've noticed an increase in phishing where fraudsters impersonate employees and send fake job offers to steal sensitive information. We'll never ask for financial details during the hiring process and only use "@hingehealth.com" emails. If you receive a suspicious offer, stop communication and report it to the US FBI Internet Crime Complaint Center. To verify an email from our recruiting team, forward it to security@hingehealth.com.