Certisign

Front-End Developer, Mid-level

Certisign

full-time

Posted on:

Location Type: Hybrid

Location: São Paulo • Brazil

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Tech Stack

CypressGoogle Cloud PlatformGraphQLJavaJavaScriptJestLaravelMagentoNext.jsPHPReactReduxSpringSpring BootSpringBootWordPress

About the role

  • Develop and customize responsive interfaces using React (hooks, context, Redux or Zustand), WordPress themes, and Magento front-end.
  • Integrate the front end with REST/GraphQL APIs from backends in Java (Spring Boot) and PHP (Laravel or native).
  • Collaborate on code reviews, refactorings, and continuous deployment (CI/CD with GitHub Actions or similar).
  • Implement unit and end-to-end tests (Jest, React Testing Library, Cypress).
  • Support debugging and improvements in payment integrations (PIX, boleto), authentication, and security (JWT, OAuth).

Requirements

  • Bachelor's degree in Systems Analysis, Computer Science, Data Processing, Computer Engineering, or related fields;
  • Proven experience of 2+ years with React (v16+), and front-end themes/plugins for WordPress and Magento 2.
  • Strong knowledge of HTML5, CSS3, and JavaScript.
  • Familiarity with front-to-back integrations in Java and PHP, including Magento customizations.
  • Intermediate technical English (reading documentation and forums).
  • Nice to have: Experience with Next.js, advanced state management, PWAs, or headless CMS (WPGraphQL, Magento PWA Studio).
  • Knowledge of automation tools (n8n, GCP) or payment integrations (Cielo, Adyen).
  • Experience with SRE, incident response, or web/e-commerce performance optimization.
Benefits
  • Meal allowance on Flash card 🍽️
  • Grocery allowance on Flash card 🛒
  • Health insurance (Amil) 🏥
  • Dental insurance (MetLife) 😁
  • TotalPass and Wellhub wellness benefits 💪
  • Birthday day off 🎉
  • Childcare assistance 👶
  • Corporate university - UniSign 📚
  • Life insurance 🔒
  • Educational partnership 🎓
  • SESC partnership 🏖️
  • Better Maternity Program 🤱
  • Extended maternity and paternity leave 👪
  • Pharmacy card 💊
  • Profit-sharing (PLR) 💼

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
ReactJavaPHPHTML5CSS3JavaScriptREST APIsGraphQLunit testingend-to-end testing
Soft skills
collaborationcode reviewrefactoringdebuggingproblem-solving
Certifications
Bachelor's degree in Systems AnalysisBachelor's degree in Computer ScienceBachelor's degree in Data ProcessingBachelor's degree in Computer Engineering