Remote World - Senior front end developer

Front-End Developer is needed in Brazil.

Client: Remote World

Location: Remote, Brazil

Contract: Part-time

Job Description

Position: Senior Front-end Developer

Contract: Freelance, fully remote

Commitment: 4 days per week (32 hours)

Compensation: $70,000 - $90,000 per year

Expatfile is looking for a senior front-end developer to become an integral part of our team. We build tax software for American expats, simplifying a complex process while securely handling sensitive financial data. We operate with multiple Next.js applications and are deeply committed to quality and security.

Requirements

Core Stack:

• TypeScript: Advanced proficiency with generics, discriminated unions, utility types, strict mode.
• React 18/19: Deep understanding of the rendering model, hooks, Suspense, transitions, and concurrent features.
• Next.js (App Router): Fluent with React Server Components, server actions, streaming, layouts, route groups, and middleware.
• Next.js (Pages Router): Proficient with getStaticProps/getServerSideProps and understanding migration to RSC.

Styling:

• SCSS / CSS Modules: Production experience in writing scalable, maintainable SCSS and understanding CSS specificity, responsive design, and CSS variables.

Data Layer:

• GraphQL: Strong understanding including schema comprehension, codegen workflows, client cache management, optimistic updates, pagination, and efficient fragment composition.

Design & Accessibility:

• Figma-to-code: Ability to implement designs with pixel-perfect fidelity and understanding of design tokens, spacing systems, and typography scales.
• Storybook: Experience in building and maintaining component stories for documentation and design collaboration.
• WCAG 2.1 AA: Practical experience in accessible design, focusing on forms, modals, and screen reader compatibility.

Testing:

• Jest or Bun: Experience in unit and integration testing of components and hooks.
• React Testing Library: Focus on testing behavior over implementation details.
• MSW: Experience in mocking API responses in tests and Storybook.

Ideal Experience:

• 7+ years of professional front-end experience.
• Ability to communicate effectively and provide constructive feedback while co-mentoring a junior developer.
• Comfortable making pragmatic trade-offs to deliver user value.
• Availability during CET working hours.

Additional Information

• Company Culture: High growth FinTech startup that prioritizes security, simplicity, and speed.
• Working Environment: 2-week sprints with daily standups, remote work option, and office space in Amsterdam.
• Equipment: Company provided modern M-series MacBook Pro (32 GB+ RAM).

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