> Markdown version of [/jobs/ext/3640314-full-stack-engineer](https://www.wearedevelopers.com/jobs/ext/3640314-full-stack-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Engineer - **Company:** Green Key Resources - **Location:** McLean, VA, United States - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), .NET Framework, PHP (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Android Software Development, Apple IOS, C Sharp (Programming Language), Continuous Integration, Relational Databases, Mobile Application Software, PostgreSQL, MySQL, Node.Js, Standard Sql, Responsive Web Design, Software Engineering, TypeScript, ReactJS, Large Language Models, Prompt Engineering, Generative AI, Backend, Git, React Native, Front End Software Development, Restful APIs - **Published:** October 8, 2026 - **Apply:** https://www.disabledperson.com/jobs/75883706-full-stack-engineer ## About the Role * Experience building and scaling modern full-stack applications. * Strong proficiency with JavaScript/TypeScript and at least one backend language such as C# or PHP. * Experience working with AWS and relational databases. * Interest in AI technologies and bringing LLM-powered features into production. * Comfortable working in a fast-moving startup environment with significant ownership. * Strong communication skills and a collaborative mindset. ## Description Our client is an early-stage, venture-backed technology company building AI-first products used by thousands of customers. Their engineering team is small, highly collaborative, and focused on solving difficult technical challenges with modern technologies. This is an opportunity to work across the entire stack, influence technical direction, and ship features that have immediate impact. What You'll Do * Design, develop, and deploy full-stack applications from concept to production. * Build scalable backend services and APIs that power AI-driven experiences. * Integrate and optimize Large Language Models (LLMs) within production systems. * Develop responsive web and mobile applications. * Collaborate directly with product and engineering leadership on architecture and technical strategy. * Own features throughout the full software development lifecycle, including deployment and production monitoring. Tech Stack * Frontend: React, TypeScript * Backend: Node, .NET, C#, PHP * Cloud: AWS * Databases: PostgreSQL, MySQL, SQL * AI: LLMs, Generative AI, Prompt Engineering * Mobile: React Native, iOS, Android * Tools: Git, REST APIs, CI/CD