Senior Frontend Engineer – React/Next.js + AI - Remote Work

At BairesDev®, we've been leading the way in technology projects for over 15 years. We deliver cutting-edge solutions to giants like Google and the most innovative startups in Silicon Valley. Our diverse 4,000+ team, composed of the world's Top 1% of tech talent, works remotely on roles that drive significant impact worldwide. When you apply for this position, you're taking the first step in a process that goes beyond the ordinary. We aim to align your passions and skills with our vacancies, setting you on a path to exceptional career development and success. Senior Frontend Engineer – React/Next.js + AI at BairesDev In this role, you'll own frontend experiences on a streaming chat product that's expanding into analytics views where accuracy directly shapes customer conversations. You'll build within an established design system, crafting reusable components and validating AI-driven experiences with real rigor rather than by inspection. This is your opportunity to bring both frontend craft and AI fluency to a product where precision genuinely matters, extending backend services when the frontend needs them and raising experience issues before anyone has to ask. What You'll Do: - Build and own frontend experiences for a streaming chat application expanding into analytics views.- Develop reusable components and hooks within an established design system.- Validate AI-driven experiences against evaluation sets rather than manual inspection.- Extend Python services where frontend functionality requires backend support.- Proactively surface experience issues rather than waiting for feedback. What we are looking for: - 5+ years of experience with React and Next.js using TypeScript.- 2+ years of experience with AI/ML-driven applications, including LLM integrations.- Experience with LLM evaluation, including LangSmith, LLM-as-judge, offline evals, or golden datasets.- 2+ years of experience with Python.- Experience with AWS.- High attention to detail in UI, including pixel accuracy, proactive polish, and design spec fidelity.- Advanced proficiency in English. Nice to have: - Experience with analytics and charting UI, including funnels, bar and time series charts, using D3, Recharts, or Visx.- Familiarity with generative UI and AI-generated experiences, including model-driven components.- Experience working inside an established design system such as Odyssey, Material, or Carbon.- Strong accessibility (a11y) and responsive web app practices.- Experience with streaming chat interfaces, including LangGraph API, WebSockets, and token streaming. How we do make your work (and your life) easier: - 100% remote work (from anywhere).- Excellent compensation in USD or your local currency if preferred- Hardware and software setup for you to work from home.- Flexible hours: create your own schedule.- Paid parental leaves, vacations, and holidays.- Innovative and multicultural work environment: collaborate and learn from the global Top 1% of talent.- Supportive environment with mentorship, promotions, skill development, and diverse growth opportunities. Apply now and become part of a global team where your unique talents can truly thrive!