Senior Software Engineer, Applied AI (Frontend Leading)

EPAM Systems • Los Angeles, CA • 1h ago

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

Accident 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

This Remote Position Cannot be Performed in New York City.

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.

In accordance with the LA County Fair Chance Ordinance, you may find a copy of the Notice containing a summary of the Ordinance's key provisions here: Concept FCO Posting 8 27 24 (lacounty.gov)

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 opportunity 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.

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