Senior Frontend Software Engineer (React)

IDT is looking for a highly skilled Senior Frontend Developer who can take informal leadership over UI development among Net2Phone projects. Net2Phone is a UCaaS platform that helps thousands of businesses around the world run their internal and external communications. The Unite Interface team owns the frontend layer of the Net2Phone product — the web app at app.net2phone.com, the Electron desktop client, and the family of embedded micro-apps that live inside them. The interface group is 7 engineers split across two squads. You'll be joining SPOG — our chats & calls client for B2B users (web + desktop). SPOG is a React + MobX SPA that ships as both a standalone app and as an embedded experience inside the Unite shell, and it's the surface customers spend most of their day in. Beyond SPOG, you'll touch other UI projects in the ecosystem — the shared component library, embedded micro-apps (dialer, receptionist console, sip trunking, admin), and the infrastructure that delivers them all (CloudFront, S3, Lambda@Edge) via AWS CDK. Tech stack: React 18, TypeScript, MobX, Vite, Electron, AWS CDK, CloudFront, S3, Lambda@Edge, GitHub Actions, Jest / Vitest, Playwright.