--- title: 'Principal Backend Developer at Happy Health' canonical: 'https://feeny.ai/job/principal-backend-developer-happy-health-remote-nfkgetsrbb3x' type: 'job' last_seen: '2026-09-10' --- # Principal Backend Developer at Happy Health - **Company:** Happy Health - **Location:** Remote - **Compensation:** $180k–$240k - **Employment:** full-time - **Work type:** remote - **Posted:** 2026-03-13 - **Last confirmed live:** 2026-09-10 - **Apply:** https://jobs.lever.co/happy-sleep/6c0a409f-35a2-4687-a9bd-ede3fb3c1c38 ## Job description ## About Happy Health Happy Health is revolutionizing sleep medicine delivery through our comprehensive telehealth platform. We've eliminated the traditional barriers to sleep care – no more waiting months for appointments or spending uncomfortable nights in sleep labs. Our patients receive FDA-cleared home sleep testing via Happy Ring, connect with board-certified sleep specialists, and when required, begin evidence-based treatment within just 5 days. Ongoing physiological data monitoring with the Happy Ring enables real-time condition management, combination therapies, and drives measurable outcomes. Happy Ring represents the future of sleep diagnostics: an FDA-cleared medical device integrating advanced biometric sensors with AI-powered analysis to deliver highly accurate diagnostics and longitudinal management at home. For sleep medicine physicians, this means you'll have access to high-quality diagnostic data that empowers you to make confident clinical decisions for your patients, and integrate multimodal treatments that focus on root-cause solutions. ## Overview This position on the software team has direct ownership of and responsibility for the architecture, scalability, reliability, security, and long-term evolution of our backend infrastructure. As part of the software team behind the Happy Health product, you will help ensure that the integrated services and systems instrumental to the customer-facing experience (e.g. CRM, EHR, eComm, 3PL, etc.) are designed and operated to scale reliably. You will also help lead the design and implementation of internal tools used by technical and non-technical leaders and teams across the company. In addition to a primary role in hands-on engineering, this role will provide technical leadership across backend architecture, integration strategy, engineering standards, and platform decision-making. ## Key Responsibilities - Architect, build, and evolve a serverless backend stack in AWS, primarily utilizing Python 3.10+, Lambda, CDK, DynamoDB, Cloudfront, SNS, SQS, S3, and other related services to support customer-facing applications and internal operational workflows. - Lead the design, implementation, and integration of our REST API, event processors, services, and underlying datastores that deliver meaningful data to and from customers resulting from their use of the Happy Ring. - Establish and guide backend engineering best practices across system design, observability, reliability, performance, maintainability, and security. - Provide technical leadership to other team members, contractors, and partners building on these systems. - Drive architectural decisions and cross-functional technical alignment across software, mobile, web, eCommerce, operations, and partner-facing systems. - Help ensure regulatory compliance and best practices are maintained across these systems and the mechanisms used to access them, including M2M authentication, authorization, and login workflows. - Identify technical risks, scalability bottlenecks, and platform gaps early, and proactively drive solutions that support near-term commercial growth and long-term platform needs. Required Qualifications - 8+ years of experience in backend software development - 5+ years of experience in Python - 5+ years of experience building and operating production systems in AWS - Demonstrated experience designing scalable APIs, cloud infrastructure, and continuous integration workflows. - Strong experience making technical tradeoffs across performance, reliability, security, and speed of execution - Proven ability to lead technical design and influence engineering direction across multiple systems or teams ## Preferred Qualifications - 2+ years of experience working in the healthcare technology industry - Experience working in regulated environments involving security, privacy, and compliance requirements - Experience with serverless architecture at scale. - Experience with GraphQL, OpenAPI, and client SDK generation tools. - Experience integrating EHR, CRM, eCommerce, and logistics/3PL platforms. - Experience mentoring senior engineers and serving as a technical lead without direct people management responsibility Collaboration You will directly collaborate with many members across the team and are expected to serve as a senior technical leader across backend systems and integrations. eCommerce: As one of the primary consumers and users of our APIs, you will work directly and regularly with technical and non-technical members of the eCommerce team to ensure that purchasing, 3PL, CRM, and EHR systems and workflows around the Happy Ring product are integrated seamlessly and designed to scale. Mobile: You will collaborate with the mobile engineering team to ensure the APIs used by our mobile apps and SDKs are properly designed, implemented, and maintained to meet the needs of mobile users. Partners: You will work with technical members of partner teams to understand, design, and develop APIs and integrations they can use to gather and interact with data generated through their use of the Happy Ring. Happy Health is an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. ## About Happy Health ## Company Overview - **One-liner**: Happy Health provides an at-home sleep medicine platform that combines an FDA-cleared smart ring, AI-powered diagnostics, and virtual physician consultations to diagnose and treat sleep disorders. - **Entity Type**: Private (Series A, Venture-Backed) - **Headquarters**: Austin, Texas, United States - **Founded**: 2019 - **Founders**: Dustin Freckleton ## Core Business - **Primary industries**: Health Technology, Sleep Medicine, Medical Devices, Telemedicine - **Target customers**: B2C (individuals seeking sleep diagnosis and treatment) and B2B (healthcare providers, insurers) - **Mission / Purpose**: To make precision sleep healthcare accessible from home, eliminating traditional sleep lab visits. ## Products & Services - **Happy Ring**: An FDA-cleared wearable medical device (Class II) that uses proprietary biometric sensors and generative AI to monitor sleep metrics such as breathing, heart rate, sleep stages, and cognitive stress. Approved for at-home sleep apnea testing and sleep disorder diagnosis. - **Happy Sleep Platform**: A comprehensive service that includes the Happy Ring, a board-certified sleep physician consultation, personalized treatment plans, and ongoing care team support – all delivered remotely via mobile app. ## Market Standing - **Valuation / Market Cap**: Not disclosed (private company) - **Key Metrics**: - Annual Revenue: ~$2 million (reported 2025) - Total Funding: $60 million (Series A, August 2022) - Employees: 24–35 (as of 2025/2026) - **Notable Investors / Partners**: - Lead Investor: **ARCH Venture Partners** (Series A) - Other Investors: Lauder Partners, PTK Investments, Rsquared, Samsung Catalyst Fund - Key Partnership: EnsoData (AI sleep data analysis, Nov 2024) - **Growth Signals**: - Second FDA clearance for at-home sleep testing (June 2025) - Patent portfolio of 20+ filings covering real-time multi-sensor correction, hypersomnia diagnosis, hydration monitoring, and athletic monitoring - Headcount grew ~10.8% year-over-year (2024–2025) - Offices in Austin (HQ), Los Angeles, and Burlington ## Competitive Advantages - **Integrated end-to-end solution**: Single platform combining FDA-cleared hardware (ring), AI software, and clinical care – reducing diagnosis time to ~5 days vs. weeks/months in labs. - **Proprietary ring technology**: Combines next-gen biometric sensors with generative AI for high accuracy in sleep staging and apnea detection. - **Two FDA clearances** for at-home sleep testing – a high regulatory barrier for competitors. - **Strong IP moat**: 20+ patents across sleep detection, signal correction, and wearable athletic monitoring. ## Strategic Focus - Expanding FDA-cleared indications (e.g., hypersomnia, cognitive stress detection). - Scaling direct-to-consumer and B2B channels (health plans, employer wellness programs) to drive adoption. - Deepening AI/ML capabilities for personalized treatment recommendations. - International expansion: devices and telemedicine services aimed at global sleep health markets. ## Why Work Here - **Culture**: A mission-driven health tech startup focused on improving sleep health at scale. Hybrid work environment (Austin HQ with remote flexibility for certain roles). - **Engineering stack**: Modern tech stack (React, TypeScript, GraphQL, Python, Scala, Snowflake, Docker, PostgreSQL, AWS). Emphasis on building regulated medical devices and AI-powered health products. - **Remote/hybrid policy**: Hybrid workspace; many roles listed as remote (e.g., Principal Backend Developer, Telehealth Physicians). Some on-site roles in Austin (e.g., Principal E-Commerce Engineer). - **Notable perks**: Opportunity to work on FDA-cleared products with clinical impact, collaboration with board-certified sleep physicians, and ownership of meaningful projects in a lean team. ## Sources 1. [Happy Health LinkedIn](https://linkedin.com/company/happyhealthinc) 2. [Happy Health Careers Page (Lever)](https://jobs.lever.co/happy-sleep) 3. [CBInsights – Happy Sleep Profile](https://www.cbinsights.com/company/happy-health) 4. [PitchBook – Happy Health Company Profile](https://pitchbook.com/profiles/company/343018-90) 5. [Built In Austin – Happy Health Inc. Profile](https://builtin.com/company/happy-health-inc) 6. [PR Newswire – Happy Ring Second FDA Clearance](https://www.prnewswire.com) (via search result) 7. [BioWorld – Other news to note, November 2024](https://www.bioworld.com) (EnsoData partnership) ## Other roles at Happy Health - [Care Coordinator](https://feeny.ai/job/care-coordinator-happy-health-remote-mb9wy7m0f0ee) - [Verification of Benefits & Authorization Specialist](https://feeny.ai/job/verification-of-benefits-authorization-specialist-happy-health-remote-9ajf85srdeww) - [Product Designer II](https://feeny.ai/job/product-designer-ii-happy-health-remote-fp67cw5jqath) - [Telehealth Physician](https://feeny.ai/job/telehealth-physician-happy-health-remote-bybeqzwx8yx1) - [Customer Support Specialist](https://feeny.ai/job/customer-support-specialist-happy-health-austin-8em0zvcsfx8z) — Austin, TX - [Telemedicine Sleep Physician Practicing in All 50 States](https://feeny.ai/job/telemedicine-sleep-physician-practicing-in-all-50-states-happy-health-remote-aq49wgmd9qj8) - [Sleep Medicine Physician](https://feeny.ai/job/sleep-medicine-physician-happy-health-remote-f3svz9ag27p3) - [Principal E-Commerce Engineer](https://feeny.ai/job/principal-e-commerce-engineer-happy-health-remote-6r2ftcazv8c4)