Senior Front-End Developer (React)

EPAM Systems; Argentina; Hybrid; ARS 1,000,000 - 1,400,000; Full time

Benefits offered by this job

Healthcare benefits

Paid time off

LinkedIn Learning access

Global career opportunities

Job summary

EPAM Systems is seeking a Senior Front-End Developer with React expertise to build responsive, accessible web applications and to weave GenAI into daily delivery. You will partner across product, design, and backend teams, lead code reviews, and mentor juniors while maintaining high code quality and scalable UI architectures.

The role emphasizes performance optimization, cross-browser stability, and end-to-end testing to ensure robust releases.

Qualifications

• 3+ years in front-end development with modern web applications.
• Proficiency in JavaScript and React within production environments.
• Experience with code reviews and providing constructive feedback.
• Experience translating UI/UX designs into high-quality production code.
• Strong testing expertise: unit and end-to-end testing.
• Ability to optimize performance for fast load times and smooth interactions.
• Knowledge of GenAI fundamentals and practical GenAI tool usage.
• Collaborates with product, design, backend, and QA teams.
• English at an upper-intermediate (B2) level.

Responsibilities

• Design highly responsive, accessible web applications.
• Architect reusable libraries and UI frameworks that scale and perform well.
• Translate UI/UX wireframes into production-quality React code and provide feedback.
• Mentor junior developers on best practices and career growth.
• Lead code reviews to sustain quality and accelerate learning.
• Analyze performance and optimize load time and runtime interactions.
• Debug complex issues across browsers and devices.
• Implement unit and end-to-end testing to minimize regressions.
• Coordinate with QA to catch issues early and resolve defects before releases.
• Adopt GenAI tools to automate routine work and speed up delivery workflows.
• Drive continuous frontend improvement by evaluating modern frontend practices.

Skills

JavaScript

React

UI engineering

End-to-end testing

Unit testing

Performance optimization

Cross-browser debugging

GenAI fundamentals

Prompt engineering

Job description

We are looking for a Senior Front-End Developer with React expertise to craft responsive, accessible web applications while integrating GenAI into daily delivery through automation, research, and reusable workflows. You will partner across disciplines, maintain high code quality, and help scale AI-native ways of working. Apply to make an impact!ResponsibilitiesDesign highly responsive, user-friendly web applicationsArchitect reusable libraries and UI frameworks that scale and perform wellBuild accessible, cohesive user interfaces together with product, design, and backend peersTranslate UI/UX wireframes into production-quality React code and share design feedbackMentor junior developers on best practices, standards, and career growthLead code reviews to sustain quality and accelerate team learningAnalyze application performance and optimize load time and runtime interactionsDebug complex issues and ensure cross-browser and cross-device stabilityImplement unit and end-to-end testing to minimize regressions and boost reliabilityCoordinate with QA to catch issues early and resolve defects before releasesAdopt GenAI tools to automate routine work, speed up analysis, and improve delivery workflowsDrive continuous improvement by evaluating and introducing modern frontend practicesRequirements3+ years of experience in front-end development with modern web applicationsProficiency in JavaScript and React within production environmentsBackground in code reviews with clear, constructive feedbackSkills in UI engineering, translating UI/UX designs into high-quality codeExpertise in testing with unit testing and end-to-end testing practicesCompetency in performance optimization for fast load times and smooth interactionsCapability to debug complex issues across browsers and devicesKnowledge of Generative AI fundamentals and practical GenAI tool usageQualifications in prompt engineering for multi-step instructions and iterative refinementUnderstanding of AI safety, including hallucination risks and data sensitivity boundariesShowcase of collaboration with product, design, backend, and QA partnersUpper-Intermediate English proficiency (B2)Nice to haveFamiliarity with AI security fundamentals, including prompt injection risk and safe data handlingAwareness of the Cybersecurity & Trust domain for crafting secure user experiencesBackground in GenAI application development, embedding GenAI into product featuresExpertise in GenAI across the SDLC, building reusable prompts, agents, or automation workflowsWe 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