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# Senior Frontend Engineer, AI Observabilty Platform

- **Company:** Langchain, Inc
- **Location:** Cambridge, MA, United States
- **Experience:** Expert
- **Salary:** $170,000 - $235,000
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Artificial Intelligence, Design of User Interfaces, Human-Computer Interaction, Open Source Technology, TypeScript, Website Wireframe, Apache Yarn, Backend, Juniper, Webpack, Information Technology, Npm(Software), Front End Software Development, Restful APIs
- **Published:** November 6, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-frontend-engineer-ai-observabilty-platform-cambridge-ma--a82e0fbe-7b92-4d73-bf71-848fa5ec1d01

## About the Role

User Interface/Experience (UI/UX), Artificial Intelligence (AI), Artificial Intelligence (AI) Agents, Prototyping, Software Agents, Open Source, Product Development, Benchmarking, Juniper Networks M-Series, LinkedIn, * Extensive front-end engineering experience with strong proficiency in React, JavaScript and TypeScript

 * Hands-on experience with front-end development tools like Babel, Vite, Webpack, NPM, and Yarn
 * Familiarity with REST APIs and experience working closely with fullstack and backend engineers
 * Knowledge of modern authorization mechanisms, such as JWTs
 * A passion for user experience, design and building clean, engaging, and intuitive interfaces
 * Strong written and oral communication skills, with the ability to explain technical concepts clearly and concisely to both technical and non-technical stakeholders
 * The DNA to thrive in a start-up, fast-paced environment. Views unstructured environments as an opportunity to figure out the most impactful work and help define the future success of the company
 * An ownership mind-set. You are self-driven and look for opportunities to make an impact.
 * Strong computer science fundamentals, ideally with a degree in computer science or related field

## Description

(Onsite in Boston), * Develop new user-facing features using React & Typescript

 * Build reusable components and front-end libraries for future use
 * Translate designs and wireframes into high-quality code
 * Optimize components for maximum performance across a vast array of web-capable devices and browsers
 * Collaborate with fullstack and backend developers and UX/UI designers, to enhance usability