[Remote] Senior Full-Stack Developer (AI-First)

Note: The job is a remote job and is open to candidates in USA. Remote CoWorker is seeking a Senior Full-Stack Developer who can build fast and leverage AI tooling to deliver production-grade applications. The role involves owning features end to end, from database to deployment, and requires a hands-on approach to both system architecture and coding. Responsibilities Build and ship full-stack applications across the entire stack—front-end, back-end, database, and infrastructureDevelop modern, responsive UIs with React and MUIBuild robust back-end services and APIs with Node.jsDesign and manage data and auth with Supabase, and deploy/scale with Vercel and AWSUse Cursor and AI-assisted workflows to accelerate development without sacrificing qualityIntegrate open-source AI models into products—evaluating, deploying, and optimizing them for real use casesSolve ambiguous problems creatively and propose better approaches, not just execute ticketsOwn technical decisions, architecture, and code quality as a senior member of the team Skills Senior-level experience building and shipping full-stack applicationsStrong front-end skills: React, MUI, modern component architectureStrong back-end skills: Node.js, API design, server-side logicHands-on experience with Supabase (Postgres, auth, real-time)Deployment and infrastructure experience with Vercel and AWSPractical experience working with open-source AI models (deployment, integration, fine-tuning or prompting)Fluency with AI-assisted development tools, especially CursorAn out-of-the-box thinker who finds creative, efficient solutionsSelf-directed, reliable, and able to own work end to endExperience scaling applications in productionFamiliarity with CI/CD pipelines and DevOps practicesPrior experience in a startup or fast-moving environment Company Overview Remote CoWorker is a consulting firm that offers virtual assistance, tech support, data entry, and customer service to enhance businesses. It was founded in 2013, and is headquartered in St. Petersburg, Florida, USA, with a workforce of 1,001-5,000 employees. Its website is https://remotecoworker.com/.