Senior Frontend Developer

iblue

. Design and implement headless frontend applications for B2B e-commerce and digital portals .

Posted 9/15/2026full-timeRemote • BrazilSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in Frontend Development with a focus on React, JavaScript, and TypeScript, while ensuring adherence to Design Systems and best practices in UX for B2B e-commerce applications. Proficient in implementing automated testing and observability solutions to enhance performance and user experience.

Highest-signal resume keywords

React DevelopmentJavaScript (ES6+)TypeScriptMicro Frontends ArchitectureAutomated Testing (Jest, Cypress)

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

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

Hard Skills

Frontend DevelopmentJavaScript (ES6+)TypeScriptHTML5CSS3Micro FrontendsREST APIsOAuth2Unit TestingIntegration Testing

Soft Skills

Excellent Communication SkillsResults-OrientedContinuous Improvement MindsetCollaboration in Agile TeamsComfortable in Multidisciplinary Teams

Tools & Technologies

React Testing LibraryCypressPlaywrightGitGitLab CIGitHub ActionsAzure DevOpsDockerMonitoring ToolsObservability Solutions

Industry Keywords

B2B E-CommerceDesign SystemsResponsive DesignAccessibility (WCAG)Global ProjectsLocalizationAgile EnvironmentTechnical DocumentationUser ExperiencePerformance Optimization

Tech Stack

Tools & technologies

AzureCypressDockerJavaScriptJestReactTypeScript

About the role

Key responsibilities & impact

Design and implement headless frontend applications for B2B e-commerce and digital portals
Develop modern, scalable, and reusable interfaces using React
Ensure adherence to the Design System, visual consistency, and an excellent user experience
Implement and maintain automated unit, integration, and end-to-end tests
Participate in defining and evolving the frontend architecture, including micro frontends and code reuse
Implement observability solutions for performance, errors, and user experience
Collaborate with UX/UI Designers, Architecture, Product Owners, and stakeholders in a Scrum/Kanban environment
Participate in code reviews, pair programming, and continuous improvement initiatives
Contribute to technical documentation in Portuguese and English and share knowledge
Continuously optimize performance, accessibility, SEO, and usability
Rebuild the frontend layer of a global cloud-based B2B e-commerce platform and related domains

Requirements

What you’ll need

5+ years of experience in frontend development for complex web applications
Strong experience with React and its ecosystem
Proven experience with headless projects
Advanced proficiency in JavaScript (ES6+), TypeScript, HTML5, and CSS3
Experience with Micro Frontends architecture, componentization, Design Systems, and SPA applications
Experience working on large-scale, business-critical enterprise applications
Experience consuming REST APIs
Knowledge of pagination, authentication, error handling, and API versioning
Experience with OAuth2, OpenID Connect, and enterprise identity providers
Experience with Jest, React Testing Library, Cypress, Playwright, or equivalent tools
Experience with unit, integration, and end-to-end (E2E) testing
Experience with Git and CI/CD pipelines (GitLab CI, GitHub Actions, Azure DevOps, or similar)
Knowledge of Docker
Experience with monitoring and observability
Knowledge of UX best practices applied to e-commerce
Experience with responsive design, Mobile First, accessibility (WCAG), and web performance
Experience working on global projects involving multiple languages, localization, and regional formatting
Senior-level profile with the ability to serve as a frontend technical reference
Ability to support architectural decisions
Excellent verbal and written communication skills
Advanced English proficiency for reading and writing technical documentation and participating in international meetings
Results-, quality-, and continuous-improvement-oriented
Comfortable working in multidisciplinary teams and agile environments
Commitment to governance, documentation, and corporate development standards

Benefits

Comp & perks

Remote work arrangement
Multidisciplinary team environment
Agile work environment (Scrum/Kanban)
Collaboration with international teams and stakeholders
Knowledge sharing and continuous improvement initiatives