Senior Frontend Software Engineer (Applied AI)

5V Tech; EUA; Teletrabalho; USD 162 000 - 198 000; Tempo integral

Resumo da oferta

5V Tech is hiring a Senior Frontend Software Engineer (Applied AI) to build user interfaces and the client libraries that connect web apps to backend AI services. This hands-on tech lead role focuses on frontend work with some Python on the backend, operating in the US time zone and fully remotely.

You will create responsive React/TypeScript views, maintain a reusable component library, and integrate GenAI features using LangChain, LangGraph, or LlamaIndex with leading model providers.

Qualificações

• 5+ years of production React/TypeScript experience.
• 5–8 years across frontend, SDKs, REST APIs.
• 1+ year in GenAI features or CCAR-F certification.

Responsabilidades

• Build client-side interfaces and layers that connect web apps to backend AI services.
• Create responsive React/TypeScript views with streaming using SSE/WebSockets.
• Maintain a shared component library and design system for internal AI apps.
• Integrate LLM workflows with LangChain/LangGraph/LlamaIndex and providers.
• Collaborate with PMs and designers to refine conversational UI and prompts.
• Ensure accessibility (WCAG 2.1 AA) and automated test coverage.

Conhecimentos

React

TypeScript

REST APIs

Web apps

SSE/WebSockets

WCAG accessibility

Python

Ferramentas

LangChain

LangGraph

LlamaIndex

Descrição da oferta de emprego

Senior Frontend Software Engineer (Applied AI)

About the company

Location: United States (Fully Remote)

Salary: Up to $180,000 base, plus benefits

This company is a global software engineering and technology services business, partnering with large enterprises to build the platforms their people rely on every day. This role sits within an Applied AI team building internal tools for employees across IT, HR, Finance, Sales and Customer Support, bringing language models and intelligent automation directly into everyday workflows.

About the role

This is a hands-on tech lead role, not a people management position, with around 60 to 70% of your time spent writing code. You will build the user interfaces and shared client libraries that connect web applications to backend AI services, shaping how conversational and AI-driven experiences look and feel across the organisation. The role leans frontend, with some Python on the backend, and you will work your own US time zone.

Key responsibilities

• Build client-side interfaces and application layers that connect web apps to backend AI services
• Create responsive React and TypeScript views that handle streaming responses over SSE and WebSockets with low latency
• Maintain a library of shared components, hooks and design patterns for internal AI applications
• Integrate LLM workflows using frameworks such as LangChain, LangGraph or LlamaIndex with leading model providers
• Work with product managers and designers to test and refine conversational UI patterns, prompt builders and feedback inputs
• Keep applications accessible (WCAG 2.1 AA), monitored and covered by automated tests

Ideal profile

• 5+ years of production experience building web applications with React and TypeScript
• 5 to 8 years of software development experience across frontend interfaces, client SDKs and REST APIs
• 1+ year of experience integrating GenAI features, LLM APIs and prompt UI patterns, or the Claude Certified Architect: Foundations (CCAR-F) certification
• Hands-on experience building, documenting and maintaining reusable component libraries, design systems and custom hooks

Preferred qualifications

• Working knowledge of Python for backend scripting, service integration or light API maintenance
• Real-time streaming UI patterns using SSE or WebSockets, including citation rendering and summary cards
• Knowledge of WCAG 2.1 AA and accessible component design
• Familiarity with RAG, vector search (OpenSearch, Pinecone) and embeddings
• Experience with AI evaluation tools, guardrails and user feedback mechanisms