Senior Full-Stack Engineer (React / .NET / Live Streaming eCommerce)

We’re building the future of live streaming ecommerce—a bold, community-powered platform where creators can sell, connect, and grow in real time. We’re looking for a Senior Full-Stack Engineer who’s equally at home writing performant React UIs and scalable .NET APIs. If you thrive in fast-paced startup environments and want to work across real-time systems, live video streaming, GraphQL, and cloud-native tools—this is your shot. Tech Stack Highlights You’ll work across both frontend and backend systems. We don't expect you to know everything on day one—but deep expertise on one side and eagerness to grow on the other is a must. Frontend React 18 / Next.js (v14+) Vercel (Edge Functions, SSR/ISR, PWA support) Apollo Client + GraphQL Subscriptions Auth0, Redux Toolkit Pusher.io for real-time updates Agora SDKs (RTC, RTM, Media Push) Stripe, Scanbot SDK Internal component libraries with Storybook Observability: Datadog RUM & logging i18n with next-i18next / react-i18next Backend .NET 8 / C# (Minimal APIs, background services) Entity Framework Core + PostgreSQL Azure (Blob Storage, Service Bus, Application Insights) GraphQL with HotChocolate Auth0, API Key Auth Dapr for microservices and eventing Stripe.NET, ShipEngine, Shippo, Plaid.NET, TaxJar Cloudinary, Twilio, Geo.MapBox AutoMapper, Slugify, shortid What You’ll Do Build and maintain end-to-end product features, from the frontend UI to backend services Own critical flows across live shopping, seller onboarding, chat, and streaming experiences Collaborate with design, product, and DevOps to rapidly ship high-impact features Implement real-time capabilities: live chat, viewer count, notifications, and interactive tools Ensure scalability, performance, and security across the stack Improve observability and troubleshoot complex user journeys Shape architecture and mentor engineers on best practices across the codebase Requirements You Should Have 5+ years of professional software engineering experience Deep expertise in either React/Next.js or .NET backend systems Solid experience working with GraphQL, REST APIs, and real-time messaging Strong foundation in cloud platforms (Azure preferred) Passion for clean code, performance, and developer experience Experience working with third-party APIs and complex integrations Strong communication skills and a collaborative, ownership-driven mindset Bonus Points Experience with live video or WebRTC (Agora a plus) Built a PWA or hybrid/native app Familiarity with Kubernetes, Dapr, or event-driven microservices Worked in high-growth startups or shipped products 0 1 Full-stack experience beyond your core strength Contributions to open source or developer communities i18n/localization experience Benefits Why Join Us? We’re redefining what it means to sell live. As a small team with outsized ambition, we move fast, ship often, and take pride in what we build. You'll work on a product with real traction, influence both tech and strategy, and help shape the creator economy of tomorrow. Competitive salary Health insurance Paid holidays Remote work flexibility (upon request) Powerful workstations Sit/stand desks Convenient location & free parking