Senior Frontend Engineer (React) - LATAM

About The Job AOA is hiring a Senior Frontend Engineer to help build polished, high-performing web experiences for ambitious eCommerce and SaaS clients. You will turn thoughtful designs and product direction into production-ready interfaces, bringing the care, judgment, and craft that make digital products reliable and easy to love. This is a senior role for someone who enjoys ownership, but not isolation. We keep specifications lean because we trust strong engineers to think deeply, ask good questions, and shape the technical path forward. You will break product-level goals into clear engineering work, make sound implementation decisions, and bring the details a great frontend needs. You will work across a portfolio of client projects, partnering with designers, product leads, backend engineers, and client-facing teammates to move work forward with clarity and care. As an AI-native agency, we use modern AI coding tools and agents to increase speed, quality, and focus, while keeping strong human judgment at the center of the final product. You may be a strong fit if you are a senior frontend engineer who takes pride in excellent user interfaces, enjoys turning ambiguity into thoughtful implementation, communicates clearly, and wants to do high-quality work with a close-knit team that cares deeply about client outcomes. Role Details Compensation: $5,000 USD per monthEngagement: Contract (independent contractor)Location: Remote, based in Latin AmericaSchedule: Available during standard business hours in US Central Time, for strong overlap with the teamReports to: Engineering Manager About AOA AOA is a growing digital design and development agency that creates high-impact websites, AI-native apps, and standout eCommerce experiences for ambitious modern brands. We partner closely with eCommerce and SaaS companies to deliver thoughtful, polished work that drives meaningful results and lasting client success. Our work spans strategy, design, development, eCommerce, conversion optimization, and custom application development. We are a close-knit team where every person has a direct, visible impact on our clients' success and the growth of the company. We value genuine relationships, high standards, ownership, clear communication, and a true commitment to client delight. As an AI-native agency, we use modern tools to enhance the quality, speed, and clarity of our work, while keeping human judgment, creativity, and relationships at the center. Responsibilities Key Outcome: Deliver high-quality, high-performing frontend experiences that AOA is known for, with predictability, agentic-efficiency, and collaborative ownershipBuild production-grade frontend experiences for enterprise accounts in React and Next.jsWrite clear technical documentation, schemas, and architectural flows teammates can useTurn product-level objectives into clear, actionable engineering tasks and own the technical approachTranslate Figma designs into reusable component libraries and design-system primitives that help the team ship fasterBring frontend craft from the start and build for performance by defaultConnect interfaces to backend and third-party APIs, handling loading, errors, empty states, and partial dataPlan and sequence your work across multiple client projects, bringing recommendations rather than open-ended problemsProactively identify risks and gaps, and create spike tickets to de-risk them ahead of the workWrite tested, maintainable TypeScript that follows each client codebase's conventionsSelf-review your work and catch issues before QAConduct code reviews and hold the bar on quality across the work you reviewUse AI coding tools and agents thoughtfully while keeping engineering judgment in controlSelf-manage and take ownership of your commitments and deliver what you planned for the cycleCommunicate proactively across a remote team, sharing progress and surfacing risks early Qualifications 5+ years building production frontend applications, with deep, current React expertiseStrong experience on enterprise-grade accounts, products, or projectsPrior experience working in an agency environment and as an independent contractor, with the ability to manage multiple clients or projects in parallelExcellent professional English, spoken and writtenA track record of owning frontend features end-to-end, from ambiguous requirements to productionStrong frontend fundamentals: semantic HTML, modern CSS, responsive design, and browser behaviorExperience translating Figma designs into accurate, responsive, accessible interfacesExperience integrating REST or GraphQL APIs and managing client and server stateA strong quality discipline: typed, tested code and self-review before QAAbility to estimate your work, commit within a delivery cycle, and reliably deliverStrong written communication and proactive, independent work in a fully remote teamReliable overlap with standard US Central Time business hoursFluent, practical use of AI coding tools as part of your engineering workflowBased in Latin America and able to work as an independent contractor Preferred Qualifications Experience with headless or eCommerce frontends, such as Shopify Hydrogen or headless commerce, in addition to SaaSExperience building or maintaining a design system or component library used across multiple productsFamiliarity with frontend testing and CI tooling, such as Playwright, Vitest or Jest, and Testing LibraryExperience working in a points-based or sprint-based delivery modelA portfolio, GitHub, or code samples you can share You do not need to check every single box to apply. We know strong engineers bring the right experience in different ways. If you build excellent frontends in React, take real ownership of your work, and want to do it at AI-native speed, we would love to hear from you.