Senior Front-End Developer (React)

EPAM Systems; Colombia; À distance; COP 90 000 000 - 150 000 000; Plein temps

Résumé du poste

EPAM Systems, Inc. is seeking a Senior Front-End Developer with React expertise to build responsive, accessible web applications.

You will embed GenAI into daily delivery, collaborate across disciplines, and uphold high code quality to scale AI-native workflows. You will translate wireframes into production-ready React code, lead code reviews, mentor junior developers, and optimize performance across browsers and devices.

Qualifications

• 3+ years of front-end development with modern web apps.
• Strong hands-on experience with JavaScript and React in production.
• Proven code review experience with constructive feedback.
• Strong testing skills (unit and end-to-end).
• GenAI fundamentals and practical GenAI tool usage.
• Strong collaboration with product, design, backend, and QA.

Responsabilités

• Design highly responsive, user-friendly web applications.
• Architect reusable libraries and UI frameworks that scale and perform well.
• Translate UI/UX wireframes into production-quality React code and provide design feedback.
• Mentor junior developers on best practices, standards, and career growth.
• Lead code reviews to maintain quality and accelerate team learning.
• Analyze application performance and optimize load time and runtime interactions.
• Debug complex issues and ensure cross-browser and cross-device stability.
• Implement unit and end-to-end testing to reduce regressions and increase reliability.
• Coordinate with QA to identify issues early and resolve defects before releases.
• Adopt GenAI tools to automate routine work, accelerate analysis, and improve delivery workflows.
• Drive continuous improvement by evaluating and introducing modern frontend practices.

Connaissances

JavaScript

React

Code reviews

UI engineering

Testing (unit/E2E)

Performance optimization

Debugging

GenAI fundamentals

Prompt engineering

AI safety awareness

Cross-browser debugging

Collaboration

English (B2)

Outils

Git

Jest

Playwright

Chrome DevTools

Accessibility testing

Webpack/Bundlers

Description du poste

We are seeking a Senior Front-End Developer with React expertise to build responsive, accessible web applications while embedding GenAI into daily delivery through automation, research, and reusable workflows. You will collaborate across disciplines, uphold 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 in partnership with product, design, and backend peersTranslate UI/UX wireframes into production-quality React code and provide design feedbackMentor junior developers on best practices, standards, and career growthLead code reviews to maintain 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 reduce regressions and increase reliabilityCoordinate with QA to identify issues early and resolve defects before releasesAdopt GenAI tools to automate routine work, accelerate analysis, and improve delivery workflowsDrive continuous improvement by evaluating and introducing modern frontend practicesRequirements3+ years of experience in front-end development with modern web applicationsStrong hands-on experience with JavaScript and React in production environmentsProven code review experience with clear, constructive feedbackSolid UI engineering skills translating UI/UX designs into high-quality codeStrong testing skills with unit testing and end-to-end testing practicesStrong performance optimization skills for fast load times and smooth interactionsStrong debugging skills across browsers and devices for complex issuesWorking knowledge of Generative AI fundamentals and practical GenAI tool usageStrong prompt engineering skills for multi-step instructions and iterative refinementStrong AI safety awareness, including hallucination risks and data sensitivity boundariesStrong collaboration skills working with product, design, backend, and QA partnersUpper-Intermediate English proficiency (B2)Nice to haveAI security fundamentals, including prompt injection risk and safe data handlingCybersecurity & Trust domain awareness for building secure user experiencesGen AI application development experience integrating GenAI into product featuresGen AI in SDLC experience creating 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 LinkedInEPAM is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, sexual orientation, gender identity or expression, disability, protected veteran status, or any other characteristic protected by applicable law.