Lead Software Engineer, Applied AI (Frontend Leading)

EPAM Systems; New York (NY); Remote; USD 150,000 - 165,000; Full time

Benefits offered by this job

Health benefits

HSA

FSAs

Disability insurance

Life insurance

EAP

LinkedIn Learning

401(k)

Job summary

EPAM Systems is seeking a Lead Software Engineer, Applied AI (Frontend Leading) in New York City to build GenAI-powered enterprise web apps. You will craft intuitive UIs, streaming interfaces, and reusable frontend libraries, working across IT, HR, Finance, and more.

You'll bridge LLM orchestration with delightful UX, collaborate with designers and product managers, and ensure security, accessibility, and performance at scale. Prioritize React/TypeScript/Vue and cloud integration.

Qualifications

• 5+ years of production experience with React, TypeScript, or Vue for enterprise web applications.
• Engineering seniority: 5–8 years of software engineering across the full web stack (frontend UIs, REST APIs, microservices).
• 2+ years of experience integrating GenAI features, LLM APIs, and prompt UI patterns into web applications.
• Strong Python backend development skills and 2+ years of experience consuming/building cloud microservices on AWS, Docker, and REST APIs.
• Proven experience building, documenting, and maintaining reusable component libraries, design systems, and custom hooks.

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, TypeScript, 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 LangChain or LlamaIndex 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.

Skills

Frontend mastery

Engineering seniority

AI application integration

Python & cloud services

Component libraries

Tools

React

TypeScript

Vue

LangChain

LlamaIndex

AWS

Docker

REST APIs

Job description

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

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.#1090018301

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, TypeScript, 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 LangChain or LlamaIndex 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, TypeScript, 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/WebSockets), prompt builders, citations, and summary UI components
• Web Accessibility (a11y): Deep knowledge of WCAG 2.1 AA compliance and accessible UI component architecture
• LangChain for JavaScript: Client-side or Node.js LangChain, LangGraph, or LlamaIndex orchestration
• RAG & Vector Search: Familiarity with RAG pipelines, vector search (Pinecone, OpenSearch), and embedding concepts
• AI Evaluation & UX: Experience with AI evaluation tooling, feedback loops, and guardrails in user interfaces

We offer

• Medical, Dental and Vision Insurance (Subsidized)
• Health Savings Account
• Flexible Spending Accounts (Healthcare, Dependent Care, Commuter)
• Short-Term and Long-Term Disability (Company Provided)
• Life and AD&D Insurance (Company Provided)
• Employee Assistance Program
• Unlimited access to LinkedIn learning solutions
• Matched 401(k) Retirement Savings Plan
• Paid Time Off – the employee will be eligible to accrue 15-25 paid days, depending on specific level and tenure with EPAM (accrual eligibility may change over time)
• Paid Holidays - nine (9) total per year
• Legal Plan and Identity Theft ProtectionAccident Insurance
• Employee Discounts
• Pet Insurance
• Employee Stock Purchase Program
• If otherwise eligible, participation in the discretionary annual bonus program
• If otherwise eligible and hired into a qualifying level, participation in the discretionary Long-Term Incentive (LTI) Program

For remote work in New York City only.

EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our clients, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

Engineer the Future with a Career at EPAM

This posting includes a good faith range of the salary EPAM would reasonably expect to pay the selected candidate. The range provided reflects base salary only. Individual compensation offers within the range are based on a variety of factors, including, but not limited to: geographic location, experience, credentials, education, training; the demand for the role; and overall business and labor market considerations. Most candidates are hired at a salary within the range disclosed. Salary range: $150,000 - $165,000. In addition, the details highlighted in this job posting above are a general description of all other expected benefits and compensation for the position.

Applications will be accepted on a rolling basis.

EPAM will not provide new H-1B visa sponsorship for this position. Candidates with existing transferable H-1B status may be considered.

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.