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Spassu

Senior Frontend Developer

Spassu

. Develop and enhance high-quality web interfaces .

Posted 10/14/2026full-timeRemote • BrazilSeniorWebsite

Core Competencies

Role fit
Core Competencies

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

Demonstrates expertise in advanced frontend development, focusing on creating high-quality web interfaces, maintaining component Design Systems, and ensuring performance and accessibility. Proficient in modern frameworks and practices, including automated testing and code quality optimization.

Highest-signal resume keywords
Advanced Frontend DevelopmentComponent Design System CreationProficiency in ReactHTML5, CSS3, and JavaScript (ES6+)Agile Methodologies (Scrum or Kanban)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
HTML5CSS3JavaScript (ES6+)TypeScriptReactUnit TestingREST API IntegrationState ManagementWebGLClean Code Principles
Soft Skills
MentoringCollaborationTechnical Reference
Tools & Technologies
GitVersion Control ToolsAutomated TestingGIS / MapLibre.jsClient-Side Caching
Certifications & Qualifications
Bachelor’s Degree in Information Technology or Related Fields
Industry Keywords
Frontend ArchitectureAccessibility Best PracticesPerformance OptimizationDesign SystemAgile Methodologies

Tech Stack

Tools & technologies
JavaScriptReactSCSSTypeScript

About the role

Key responsibilities & impact
  • Develop and enhance high-quality web interfaces
  • Ensure application performance, accessibility, and security
  • Serve as a technical reference for the team
  • Support frontend architecture decisions
  • Conduct code reviews and mentor less experienced professionals
  • Develop rich, responsive, and high-performance interfaces using modern frameworks
  • Design and maintain reusable components integrated with the company’s Design System
  • Ensure adherence to UX, UI, and accessibility best practices
  • Collaborate with Design, Backend, Product, and QA teams to deliver consistent solutions
  • Implement automated unit, integration, and end-to-end tests
  • Conduct code reviews, share knowledge, and support the team’s technical growth
  • Contribute to architectural decisions in frontend projects
  • Monitor and optimize performance and code quality

Requirements

What you’ll need
  • Bachelor’s degree in Information Technology or related fields (web design, product design, business administration, physics, chemistry, engineering, or a related postgraduate degree)
  • 5 years of experience in advanced frontend development
  • Experience creating, maintaining, and documenting component Design Systems
  • Solid experience with component performance and scalability
  • HTML5, CSS3 (SASS/LESS, CSS Modules, Styled Components), and JavaScript (ES6+)
  • Proficiency in at least one of the leading frontend frameworks
  • State management
  • Experience using Git and version control tools
  • Experience with agile methodologies (Scrum or Kanban)
  • Experience with TypeScript
  • Maps and geolocation
  • REST API integration
  • Familiarity with automated testing
  • Understanding of Clean Code principles
  • SOLID principles and frontend architecture best practices
  • Knowledge of WebGL
  • Unit testing skills
  • Proficiency in React
  • GIS / MapLibre.js
  • Client-side caching
  • Design System creation
  • Accessibility and Dark Mode
  • Knowledge of MapLibre.js for maps is desirable

Benefits

Comp & perks
  • Health insurance
  • Dental insurance
  • Life insurance
  • Meal or food allowance
  • Transportation allowance
  • Wellhub (formerly Gympass)