Staff Engineer – Senior

FCamara Consulting & Training

. Develop and enhance features in React Native (iOS and Android), as well as web applications using React and Vue.js .

Posted 10/8/2026full-timeRemote • BrazilSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing and enhancing mobile and web applications using React Native, React, and Vue.js, with a strong focus on unit testing, architectural best practices, and collaboration in a fintech environment.

Highest-signal resume keywords

React Native DevelopmentTypeScript ProficiencyUnit Testing with JestFintech Project ExperienceCI/CD Knowledge

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

React DevelopmentVue.js DevelopmentUnit TestingState ManagementClean Code PrinciplesSOLID PrinciplesFirebaseGitReact HooksContext API

Soft Skills

CollaborationProblem-Solving

Tools & Technologies

JestTesting LibraryCI/CD ToolsFirebase Remote ConfigFirebase Realtime Database

Industry Keywords

FintechFeature-Based ArchitectureContinuous Delivery

Tech Stack

Tools & technologies

AndroidFirebaseiOSJavaScriptJestReactReact NativeTypeScriptVue.js

About the role

Key responsibilities & impact

Develop and enhance features in React Native (iOS and Android), as well as web applications using React and Vue.js
Participate in the full development lifecycle, including technical refinement, implementation, code reviews, and releases
Write and maintain unit tests, ensuring adequate coverage for critical application flows
Contribute to architectural decisions and development best practices within the squad
Identify opportunities for improvement and continuously reduce technical debt
Collaborate with cross-functional teams in a distributed development environment
Work on mobile and web digital products in production within a financial ecosystem featuring continuous delivery cycles

Requirements

What you’ll need

3+ years of production experience with React Native and/or React
Proficiency in TypeScript, including advanced typing, generics, and development best practices
Experience writing unit tests with Jest and Testing Library
Strong knowledge of React Hooks, Context API, and state management
Experience with Git, participating in code reviews, and working collaboratively
Ability to work simultaneously on mobile and web projects
Experience with Vue.js, particularly the Composition API
Experience working on fintech projects or financial platforms
Knowledge of Clean Code and SOLID principles applied to front-end development
Experience with Firebase (Remote Config and Realtime Database)
Knowledge of CI/CD for mobile and web applications
Familiarity with Package-by-Feature architecture (Feature-Based Architecture)

Benefits

Comp & perks

Work on real-world products used daily by thousands of users, with a direct impact on the business
Collaborative technical environment focused on quality, code reviews, and knowledge sharing
Autonomy to propose improvements, evolve architectures, and influence technical decisions
Modern, continuously evolving tech stack with opportunities to learn across different development contexts