Senior Product Engineer
Big Health
Summary
As the Senior Product Engineer, you will lead the design and delivery of complex features across the full stack — from patient-facing therapeutic experiences to internal tools and data infrastructure. You will manage multiple workstreams simultaneously, mentor junior engineers, and influence technical decisions that shape how Big Health's products are built and scaled. This role requires both strong technical execution and the judgment to make sound architectural trade-offs.
Job description
Position Summary
As the Senior Product Engineer, you will lead the design and delivery of complex features across the full stack — from patient-facing therapeutic experiences to internal tools and data infrastructure. You will manage multiple workstreams simultaneously, mentor junior engineers, and influence technical decisions that shape how Big Health's products are built and scaled. This role requires both strong technical execution and the judgment to make sound architectural trade-offs.
Key Responsibilities
- Lead the design and implementation of complex product features across React, React Native, Next.js, Python, Django, and GraphQL — from technical design through production deployment.
- Own end-to-end delivery of projects that span frontend, backend, and data layers, making sound trade-offs between speed, quality, and maintainability.
- Architect and improve core product systems — therapeutic delivery, patient engagement, outcome measurement, and clinical data pipelines — designing for reliability, accessibility, and scale.
- Mentor IC1 and IC2 engineers through code reviews, pairing sessions, and technical guidance, raising the quality bar across the team.
- Contribute to architectural decisions and technical planning, authoring design documents and participating in the RFC process.
- Collaborate closely with Product and Clinical teams to understand patient needs, clinical requirements, and outcome metrics — and translate them into engineering solutions that ship value.
- Proactively monitor and improve system reliability using Datadog, Sentry, and PostHog, and lead incident response when production issues affect patient access.
- Leverage AI-augmented development workflows (e.g., Claude Code, Copilot) for code generation, testing, and code review — and help establish team practices for effective AI tool use.
- Achieve Practitioner-level certifications across core competency domains and Advanced certification in your primary track (frontend or backend).
Requirements
- 3–6 years of professional software engineering experience, with demonstrated ability to lead feature delivery across frontend and backend systems
- Strong proficiency in Python and TypeScript, with hands-on experience building production applications using React and Django (or equivalent frameworks)
- Solid understanding of API design (REST and GraphQL), relational database modeling (PostgreSQL), and distributed system fundamentals
- Proven ability to manage multiple concurrent workstreams and deliver reliably against project timelines
- Experience designing systems that balance performance, accessibility, and maintainability
- Comfort working independently in AI-augmented workflows — using AI tools to accelerate development while critically evaluating output for correctness, security, and maintainability
- Strong written and verbal communication skills, including the ability to explain technical trade-offs to non-technical stakeholders
- Experience building patient-facing health applications or software in regulated environments (FDA, HIPAA)
- Familiarity with React Native, Expo, or cross-platform mobile development
- Exposure to healthcare data standards (FHIR, HL7) or clinical data systems
- Experience with AWS, Supabase, Vercel, and infrastructure-as-code practices
- Track record of mentoring junior engineers and improving team engineering practices
- Experience establishing team patterns for AI-assisted development, including evaluating and iterating on AI-generated architectural suggestions
Benefits
- Health Insurance
- Equity
Company overview
Big Health is a pioneering digital therapeutics company focused on transforming mental health care through evidence-based digital solutions. Founded with the mission to help millions back to good mental health, the company develops clinically validated digital programs that address common mental health conditions such as insomnia, anxiety, and depression. Their flagship product, Sleepio, is a digital sleep improvement program that uses cognitive behavioral therapy (CBT) techniques to help users overcome chronic insomnia without medication. The company's approach combines behavioral science, clinical research, and technology to create accessible, scalable mental health interventions. Big Health's programs are designed to be prescribed by healthcare providers and are backed by rigorous clinical trials demonstrating their effectiveness. The company operates at the intersection of healthcare and technology, offering solutions that bridge the gap between traditional mental health services and digital innovation. Their evidence-based methodology has gained recognition from healthcare systems, employers, and insurers seeking effective, cost-efficient mental health solutions. Big Health represents a new generation of healthcare companies leveraging digital platforms to democratize access to mental health treatment and improve patient outcomes through personalized, data-driven interventions.