Lead Front-End Developer (React)

EPAM Systems; Argentina; Remote; ARS 91,106,000 - 144,252,000; Full time

Benefits offered by this job

Healthcare benefits

Paid time off

Learning & development

Global career opportunities

Job summary

EPAM Systems, Inc. in Argentina is seeking a Lead Front-End Developer with deep React expertise to deliver responsive, accessible web applications and define engineering standards.

You will mentor junior developers, drive UI architecture, oversee code reviews, and integrate GenAI into delivery workflows to boost speed and quality across cross-functional teams. Collaborate with product, design and backend engineers to translate wireframes into robust components.

Qualifications

• 5+ years of front-end development with JavaScript and React.
• Proven leadership mentoring developers and aligning teams.
• Experience designing reusable UI architectures and component libraries.
• Strong code-review discipline with quality standards.
• Hands-on testing: unit and end-to-end.
• Proficiency in GenAI applications and prompt engineering.
• English proficiency at B2+ level.
• Awareness of AI risks and data handling best practices.

Responsibilities

• Build responsive, accessible web apps with React.
• Create reusable frontend libraries to boost scalability.
• Drive UI decisions for performance and long-term health.
• Collaborate with product, design and backend engineers to deliver cohesive interfaces.
• Convert UI/UX designs into high-quality code and provide feedback.
• Guide juniors and lead code reviews to improve quality.
• Ensure cross-browser compatibility and fast load times.
• Embed GenAI in workflows and validate outputs.
• Continuously evaluate new frontend practices and GenAI delivery methods.

Skills

React

JavaScript

Leadership

Code reviews

UI architecture

Performance optimization

Testing (unit & E2E)

GenAI

Prompt engineering

English (B2+)

Tools

GenAI tools

Job description

We are seeking a Lead Front-End Developer with deep React expertise to craft responsive, accessible web experiences while defining engineering standards and guiding teammates. You will collaborate with cross-functional peers and integrate GenAI into daily delivery to boost speed and quality. Apply to help create meaningful impact!ResponsibilitiesBuild responsive, user-friendly web applications with high accessibility standardsCreate reusable frontend libraries and frameworks to boost scalability and maintainabilityDrive technical decisions for UI implementation, performance, and long-term code healthPartner with product managers, designers, and backend engineers to deliver cohesive interfacesConvert UI/UX wireframes into high-quality React and JavaScript code and share design feedbackGuide junior developers on best practices, coding standards, and career growthRun code reviews to raise quality, consistency, and team learningTune application performance to ensure fast load times and smooth interactionsTroubleshoot complex issues and ensure cross-browser and cross-device stabilityApply unit and end-to-end testing to reduce regressions and increase reliabilityWork with QA to identify, prioritize, and resolve defects before releasesEmbed GenAI tools in daily workflows and validate outputs against data and quality constraintsAdvance continuous improvement by assessing new frontend practices and GenAI-enabled delivery methodsRequirements5+ years of front-end development background in JavaScript and ReactProven leadership skills in mentoring developers and driving team alignment (1+ years)Hands-on expertise in designing reusable UI architectures and scalable component librariesStrong competency in code reviews with clear, constructive feedback and quality standardsSolid proficiency in project execution across product, design, backend engineering, and QAStrong skills in performance optimization for fast load times and smooth interactionsHands-on qualifications in testing, including unit testing and end-to-end testing practicesStrong capability to debug across browsers and devices with a stability-first mindsetApplied skills in Generative AI, using GenAI tools for research, drafting, analysis, and code generationStrong expertise in prompt engineering for iterative, production-grade outputsPractical understanding of AI risks, covering hallucinations, context limits, and data sensitivity validationProficiency in English at a B2+ levelNice to haveKnowledge of AI security fundamentals, including prompt injection risks and data classification handlingFamiliarity with Cybersecurity & Trust practices relevant to secure frontend deliveryBackground in GenAI application development, connecting GenAI tools to APIs and internal data sourcesShowcase of GenAI in SDLC, building reusable prompts, agent workflows, or automation templatesWe offerInternational projects with top brandsWork with global teams of highly skilled, diverse peersHealthcare benefitsEmployee financial programsPaid time off and sick leaveUpskilling, reskilling and certification coursesUnlimited access to the LinkedIn Learning library and 22,000+ coursesGlobal career opportunitiesVolunteer and community involvement opportunitiesEPAM Employee GroupsAward-winning culture recognized by Glassdoor, Newsweek and LinkedIn