Senior Software Engineer, Fullstack, Rewards & Incentives
About The Position
Join RAIN—the Rewards & Incentives pod—as we build product experiences that help members form healthy habits and stay engaged with their Hinge Health care journey. Our mission is to use rewards, insights, and thoughtful product experiences to encourage behaviors that support members’ health goals. RAIN owns member-facing capabilities including points, achievements, streaks, challenges, tiers, and digital and physical incentives. We work across mobile experiences, backend services, experimentation, and operational tooling to make these experiences useful, reliable, measurable, and easy to evolve. As a Senior Full-Stack Software Engineer, you’ll own meaningful product work across the front end and backend, from technical discovery through production. You’ll work closely with Product, Design, Data, and Engineering partners to turn member needs into simple, reliable, and measurable solutions.
Requirements
- Bachelor’s Degree (or equivalent) in Computer Science, Engineering or related technical field.
- 3+ years of non-internship full-time professional software development experience.
- Experience building and operating production software as a full-stack engineer.
- Strong fundamentals in API design, data modeling, testing, debugging, and frontend development.
- Ability to take ownership of ambiguous problems and deliver practical solutions incrementally.
- Experience making technical decisions across service boundaries and explaining trade-offs clearly.
- A product mindset and interest in connecting engineering work to member needs and measurable outcomes.
- Clear communication and effective collaboration with cross-functional partners.
- Good judgment when using AI coding tools, including providing context, reviewing generated code, and maintaining ownership of architecture, security, and maintainability.
Nice To Haves
- Experience with machine learning, including training or fine-tuning models.
- Experience integrating hosted machine-learning models in the cloud.
- Experience with rewards, incentives, gamification, engagement, or other consumer-facing products.
- Experience working in privacy, security, or compliance-sensitive environments.
Responsibilities
- Build and operate full-stack features using JavaScript, TypeScript, React Native, NestJS, and Node.js.
- Own projects from technical design through launch, measurement, iteration, and ongoing maintenance.
- Develop well-tested APIs, data models, and mobile experiences for rewards and incentives.
- Translate product ideas into practical solutions and make thoughtful trade-offs between member value, quality, simplicity, and delivery speed.
- Improve reliability through testing, observability, performance improvements, and production support.
- Contribute to architectural decisions, technical documentation, code reviews, and reducing technical debt.
- Use Claude Code and other approved AI tools as part of your development workflow.
- Provide clear context, plan work, review generated changes critically, and validate behavior with tests and running code.
- Mentor teammates and contribute to a collaborative engineering culture.
Benefits
- 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 401(k) 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.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
