Senior Front End EngineerLocation: Brazil (Remote)About Sphise TechnologiesSphise Technologies is a global outsourcing and talent solutions company, partnering with high-growth businesses to build strong, high-impact teams across finance, technology, and operations.For one of our clients, a mid-sized company operating at scale, we are currently looking to hire a Senior Front End Engineer.Role OverviewWe are seeking a Senior Front End Engineer to lead custom front-end development for aSitecore DXP / OrderCloud implementation. This role will be the first dedicated front-endengineer on the project and is expected to operate with a high degree of autonomy,technical ownership, and architectural judgment.This is not a theme-tweaking role. You will design, build, and evolve a modern headlessfront end integrated with Sitecore DXP and OrderCloud APIs.Key Responsibilities• Design and implement a custom headless front end for Sitecore DXP / OrderCloudusing modern JavaScript frameworks.• Build production-grade applications using Next.js, with deployment targets such asVercel or Netlify.• Integrate front-end applications with: -OrderCloud APIs -Sitecore DXP APIs -Authentication, catalog, search, pricing, and checkout services• Translate UX/UI designs into scalable, accessible, and performant front-endimplementations.• Establish front-end architecture patterns, conventions, and best practices suitablefor a growing team.• Collaborate closely with UX, product, and backend teams to ensure clean APIcontracts and realistic implementation.• Optimize performance, SEO, and Core Web Vitals for commerce use cases.• Participate in technical decision-making around tooling, frameworks, anddeployment strategy.• Own front-end code quality, testing approach, and release readiness.Required Qualifications• 5+ years of professional front-end development experience.• Strong hands-on experience with Next.js and React in production environments.• Experience building headless or composable front ends for CMS or commerceplatforms.• Solid understanding of modern front-end architecture: -SSR, SSG, ISR -Client vs server components -State management patterns• Strong proficiency in JavaScript/TypeScript, HTML, and CSS.• Experience integrating REST and/or GraphQL APIs.• Familiarity with modern deployment platforms such as Vercel or Netlify.• Familiarity with design systems and component-driven development.• Comfortable working as an initial solo contributor while setting foundations forfuture scale.Preferred Experience• Proactive use of AI-assisted code generation tools (e.g., Cursor + Claude) to: -Accelerate development, refactoring, and prototyping. -Design and implement automated tests (unit, integration, and E2E) formodern front-end applications. -Leverage Figma MCP to translate Figma designs directly into production-ready component code, reducing design-to-implementation cycle time.• Hands-on experience with headless CMS/commerce platforms.• Experience working on B2B or complex eCommerce applications.• Ability to read, understand, and modify code in adjacent front‑end frameworks suchas AngularJS or similar React‑like ecosystems.BenefitsCompetitive salary to recognize and reward your achievements.Flexible work environment.Opportunities for professional and personal growth.