{"schemaVersion":"jobsearcher.job.v1","id":"68b328e877dc1ffc40db3a35","url":"https://jobsearcher.com/jobs/68b328e877dc1ffc40db3a35","canonicalUrl":"https://jobsearcher.com/jobs/68b328e877dc1ffc40db3a35","title":"Sr Full Stack Engineer","description":"Senior Full Stack Engineer – AI PlatformWe’re hiring a Senior Full Stack Engineer to join an early-stage, well-funded team building a greenfield, AI-native platform. This is a high-ownership role where you’ll help shape the architecture, build across the stack, and develop production AI agents and agentic workflows.What You’ll DoDesign and build systems across React, Python, .NET, and PostgreSQLOwn features and architecture end-to-endBuild LLM-based agents and agentic workflowsIntegrate LLMs, RAG, tool use, and orchestration into production applicationsHelp establish engineering standards around scalability, testing, and maintainabilityPartner closely with product and design to influence what gets builtWhat We’re Looking ForStrong full-stack engineering and architecture experienceHands-on experience with React and backend developmentExperience building with LLMs and generative AIUnderstanding of prompt design, RAG, context management, evaluation, and tool useIdeally, experience with agent frameworks such as LangGraph, OpenAI Agents SDK, Claude Agent SDK, Pydantic AI, or similarComfortable working in an early-stage environment with significant ownership","company":"Colossus Technologies Group","rawCompany":"colossus technologies group","city":"New York","state":"NY","isRemote":false,"isActive":false,"createdAt":"2026-08-19T12:53:17.845Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Sr Full Stack Engineer","description":"Senior Full Stack Engineer – AI PlatformWe’re hiring a Senior Full Stack Engineer to join an early-stage, well-funded team building a greenfield, AI-native platform. This is a high-ownership role where you’ll help shape the architecture, build across the stack, and develop production AI agents and agentic workflows.What You’ll DoDesign and build systems across React, Python, .NET, and PostgreSQLOwn features and architecture end-to-endBuild LLM-based agents and agentic workflowsIntegrate LLMs, RAG, tool use, and orchestration into production applicationsHelp establish engineering standards around scalability, testing, and maintainabilityPartner closely with product and design to influence what gets builtWhat We’re Looking ForStrong full-stack engineering and architecture experienceHands-on experience with React and backend developmentExperience building with LLMs and generative AIUnderstanding of prompt design, RAG, context management, evaluation, and tool useIdeally, experience with agent frameworks such as LangGraph, OpenAI Agents SDK, Claude Agent SDK, Pydantic AI, or similarComfortable working in an early-stage environment with significant ownership","datePosted":"2026-08-19T12:53:17.845Z","dateModified":"2026-08-19T12:53:17.845Z","hiringOrganization":{"@type":"Organization","name":"Colossus Technologies Group","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"New York","addressRegion":"NY","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"68b328e877dc1ffc40db3a35"},"url":"https://jobsearcher.com/jobs/68b328e877dc1ffc40db3a35"}}