Our Business Technology organization builds secure and intelligent internal platforms that power our global workforce.

As a
**Lead Software Engineer, Applied AI (Frontend Leading)** , you will build intuitive, performant user interfaces and frontend integration libraries that make Generative AI (GenAI) and intelligent automation accessible and useful across IT, HR, Finance, Sales, Marketing, and Customer Support.

In this role, you will bridge the gap between complex LLM orchestration and enterprise user experience, ensuring our internal teams can seamlessly adopt and trust AI-driven tools.

Req.#(phone hidden)
**Responsibilities**
Design and build end-to-end GenAI-powered applications, emphasizing intuitive web-based UIs and performant client-side API integrations
Develop responsive, accessible frontend interfaces using React, Type

Script, or Vue, engineered for streaming responses and low latency
Build and maintain a library of reusable frontend components, hooks, and design systems for enterprise GenAI applications
Implement LLM-based experiences using frameworks like Lang

Chain or Llama

Index with leading model providers (OpenAI, Claude, Gemini, etc.)
Collaborate closely with designers and product managers to iterate rapidly on novel AI UX patterns (chat assistants, prompt builders, feedback loops)
Ensure top-tier security, accessibility (a11y), observability, and test coverage across client-side and full-stack implementations
**Requirements**
Frontend Mastery: 5+ years of production experience with React, Type

Script, or Vue for enterprise web applications
Engineering Seniority:



5–8 years of software engineering experience across the full web stack (frontend UIs, REST APIs, microservices)
AI Application Integration: 2+ years of experience integrating GenAI features, LLM APIs, and prompt UI patterns into web applications
Python & Cloud Services: Strong Python backend development skills and 2+ years of experience consuming/building cloud microservices on AWS, Docker, and REST APIs
Component Libraries: Proven experience building, documenting, and maintaining reusable component libraries, design systems, and custom hooks
**Nice to have**
Conversational UX & Streaming: Real-time streaming UX patterns (SSE/Web

Sockets), prompt builders, citations, and summary UI components
Web Accessibility (a11y): Deep knowledge of WCAG 2.1 AA compliance and accessible UI component architecture
Lang

Chain for Java

Script: Client-side or Node.js Lang

Chain, Lang

Graph, or Llama

Index orchestration
RAG & Vector Search: Familiarity with RAG pipelines, vector search (Pinecone, Open

Search), and embedding concepts
AI Evaluation & UX: Experience with AI evaluation tooling, feedback loops, and guardrails in user interfaces
**We offer**
Extended Healthcare with Prescription Drugs, Dental and Vision,



and Healthcare Spending Account (Company Paid)
Life and AD&D; Insurance (Company Paid)
Employee Assistance Program (Company Paid)
Telehealth (Company Paid)
Short-term Disability (Company Paid)
Long-Term Disability
Paid Time Off (including vacation and sick days)
Registered Retirement Savings Plan (RRSP) with Company match
Maternity/Parental/Adoption Leave Top-up
Employee Stock Purchase Program
Critical Illness Insurance
Employee Discounts
Unlimited access to Linked

In learning solutions
EPAM Systems, Inc. is an equal opportunity employer.

We recognize the value of diversity and inclusion in creating success for our customers, business partners, shareholders, employees and communities.

We are committed to recruiting, hiring, developing and promoting employees without discrimination.

As a global employer, this commitment includes complying with all laws in the countries in which we operate.

Nevertheless, we believe equal employment practices should not be limited to what the law requires.

Equal prospect and inclusion are essential to motivate, empower and recognize the best in everyone.

At EPAM, employment actions are based on individual qualifications, without regard to race, color, religion, creed, gender, pregnancy status, sexual orientation, gender identity, gender expression, marital or familial status, national origin, ancestry, genetics, age, disability status, veteran status, citizenship status when otherwise legally able to work, or any other characteristic protected by law.

📌 Lead Software Engineer, Applied AI (Frontend Leading) (Canada)
🏢 EPAM Systems
📍 Canada