Full-Stack Software Engineer

Company DescriptionAt Open Ring (www.o-ring.tech), we’re behind the world’s first open-source smart ring platform, built for researchers, startups, and developers. We’re building a community-driven ecosystem for wearable tech innovation. As we scale, we’re eager to welcome exceptional talent ready to contribute to a global movement.Role OverviewWe’re building an open smart-ring platform that brings together wearable hardware, embedded firmware, mobile applications, web products, APIs, and developer tools. We’re looking for a strong Full-Stack Software Engineer to own and ship software across the product stack, from our WordPress/CMS website and web applications to backend services, mobile integrations, internal tools, and developer-facing platform features.In this role, you’ll build and maintain customer-facing web experiences, dashboards, admin tools, backend APIs, data workflows, and mobile-connected product features. You’ll work with sensor data from wearable hardware, support BLE/mobile integration, and help create the software layer that enables data synchronization, visualization, exports, SDK access, and integrations for developers and researchers.It’s a broad, high-ownership engineering role for someone who can move confidently across frontend, backend, mobile, CMS, APIs, and platform development, and who is comfortable shipping practical, reliable software in a fast-moving startup environment.Key ResponsibilitiesOwn full-stack feature development across web applications, backend services, mobile-connected product features, internal tools, and developer-facing platform products.Maintain and extend our WordPress/CMS website, including custom templates, plugin integrations, landing pages, analytics, performance, technical SEO, security, and backend integrations.Build customer-facing dashboards, admin tools, developer portals, onboarding flows, and data-management interfaces.Extend iOS and Android app functionality for wearable-device workflows, including BLE discovery, pairing, GATT interactions, background sync, offline data capture, and reconnection handling.Design and maintain backend services, REST APIs, authentication, database schemas, data models, background jobs, and third-party integrations.Build sensor-data workflows for ingestion, synchronization, storage, visualization, logging, exports, analytics, and data-quality checks.Collaborate with the embedded systems engineer on BLE protocol design, GATT services/characteristics, payload formats, device-state handling, and firmware/mobile integration testing.Build developer-facing tools, including SDKs, API documentation, sample applications, integration guides, and data-export utilities.Improve reliability, performance, security, observability, testing, deployment, and maintainability across the software stack.Work closely with the founding team, users, researchers, and partners to prototype quickly, test with real hardware, and ship production-ready features.Qualifications5+ years of software engineering experience, with strong full-stack web development experience.Strong JavaScript/TypeScript skills and experience with React, Next.js, Vue, or similar frontend frameworks.Backend/API experience using Node.js, Python, PHP, Ruby, Go, or similar, including REST APIs and database-backed applications.Experience with databases such as PostgreSQL, MySQL, Firebase, Supabase, MongoDB, or similar.Comfortable with WordPress/CMS development, including theme/plugin customization, PHP, performance, SEO, security, and maintenance.Mobile development experience is a strong plus, especially React Native, Swift/iOS, Kotlin/Android, or native integrations.Bonus: experience with IoT, BLE/GATT, wearable devices, device connectivity, or sensor-data workflows.Able to own features end-to-end, communicate clearly, and ship quickly in a lean startup environment.Why Join UsWork directly with a small founding team and own meaningful parts of the product across web, mobile, hardware integrations, and platform.Build a next-generation wearable platform that opens sensor data to developers, researchers, and partners through APIs, SDKs, dashboards, and data tools.Move quickly from prototype to pilot to production with real hardware and early users.Shape the architecture across web applications, backend services, mobile apps, data workflows, and device integrations.Equity-based compensation with long-term upside.Are you ready to contribute to the next generation of smart wearables - apply now!Alternatively, you can also show your dedication to our mission by reaching us directly through email: contact@o-ring.tech.We would love to hear from you!