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Zup Innovation logo
Zup Innovation

We create digital assets to build, grow and accelerate your applications with efficiency, security and scalability.

Fullstack Developer, React, Kotlin

Backend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 1,001-5,000H1B No SponsorCompany SiteLinkedIn

Location

Brazil

Posted

94 days ago

Salary

0

Seniority

Senior

Job Description

Fullstack Developer, React, Kotlin

Zup Innovation

• Develop and maintain scalable, high-performance web applications using React and Next.js. • Build robust, secure APIs using Kotlin with frameworks such as Ktor or Spring Boot. • Ensure code quality through automated testing (unit, integration, and end-to-end). • Collaborate with cross-functional teams to deliver solutions aligned with business needs. • Participate in code reviews, sprint planning, and other agile practices. • Implement CI/CD practices to automate builds, tests, and deployments. • Contribute to the continuous improvement of processes and application architecture.

Job Requirements

  • Solid experience with React.js, including Hooks, Context API, and state management (Redux, Zustand, or similar).
  • Experience with Next.js, including SSR, SSG, dynamic routes, and API routes.
  • Strong knowledge of TypeScript.
  • Experience with modern styling approaches (CSS-in-JS, Styled Components, or Tailwind CSS).
  • Familiarity with build tools/bundlers such as Webpack or Vite.
  • Experience with front-end testing (Jest, React Testing Library, Cypress).
  • Experience consuming RESTful APIs and GraphQL.
  • Proficiency in Kotlin for back-end development.
  • Experience with Kotlin web frameworks, preferably Ktor or Spring Boot.
  • Development and maintenance of RESTful and/or GraphQL APIs.
  • Knowledge of relational databases (PostgreSQL, MySQL) and/or NoSQL (MongoDB).
  • Experience with ORMs (Exposed, Hibernate).
  • Implementation of authentication and authorization (JWT, OAuth2).
  • Unit and integration testing (JUnit, MockK).

Benefits

  • Freedom to work from anywhere
  • Flexible working hours
  • Education assistance
  • Proprietary career development tool
  • Internal guilds and study/interest groups
  • Health insurance
  • Dental plan
  • Medication purchase partnerships/discounts
  • 24/7 telemedicine
  • Free online therapy
  • Wellhub
  • Extended maternity leave
  • Extended paternity leave
  • CAZ – Zuppers Support Center
  • Meal and grocery vouchers
  • Life insurance
  • Transportation allowance
  • Home office allowance
  • Childcare assistance
  • Phone plan subsidy
  • Profit sharing

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