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# Senior Full Stack Engineer

- **Company:** Rohirrim, Inc.
- **Location:** McLean, VA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Microsoft Azure, Code Review, Databases, Database Queries, Design of User Interfaces, Node.Js, Query Optimization, SQL Databases, Systems Integration, TypeScript, Web Applications, Web Services, ReactJS, Large Language Models, Prompt Engineering, Generative AI, Backend, Vue.js, AngularJS, Front End Software Development, NestJS
- **Published:** September 21, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=b44428235c28c2e0

## About the Role

* 5+ years of professional experience as a Full Stack Engineer.
 * Strong experience with TypeScript/JavaScript.
 * Hands-on experience with Nest.js/Node.js.
 * Hands-on experience with a JavaScript UI framework (Angular/React/Vue).
 * Strong SQL skills (schema design, query optimization).
 * Basic knowledge of Azure DevOps (pipelines, workflows).
 * Hands-on experience integrating with LLM providers/APIs (e.g., OpenAI, Anthropic, Azure OpenAI) in a production application.
 * Practical experience with prompt engineering and retrieval-augmented generation (RAG) architectures.

## Description

We are seeking a Senior Full Stack Engineer (50% backend / 50% frontend, or someone who is flexible with the split) to help design, build, and scale our generative AI-powered enterprise web applications. You'll play a key role in architecting services, ensuring performance and reliability, and contributing to frontend features that deliver great user experiences. This is a hands-on, senior-level role where you'll collaborate closely with product managers and UI/UX designers., * Architect, design, and build scalable backend systems with a focus on reliability, performance, and maintainability.

 * Develop APIs and services in Nest.js/Node.js, integrating with databases, LLM providers, and external systems.
 * Build and integrate features powered by generative AI, including LLM orchestration, prompt design, and retrieval-augmented workflows within Rohan.
 * Contribute to frontend development in Angular/TypeScript, ensuring seamless user experiences.
 * Write efficient, maintainable SQL queries and design database schemas for application features.
 * Collaborate with cross-functional teams to deliver secure and scalable AI-driven solutions.
 * Ensure high code quality via testing, code reviews, and best practices.
 * Participate in system design discussions and help set technical direction, including how AI/LLM capabilities are architected into the platform.