Senior Software Engineer (React, TypeScript)

Posted 4 Days Ago
Be an Early Applicant
São Paulo, BRA
In-Office
Senior level
Mobile • Software
The Role
Design, build, and maintain reusable React + TypeScript components and a Design System. Collaborate with UX/Product to create scalable frontend architecture, enforce accessibility (WCAG), implement CI/CD and release processes, productionize prototype/AI-generated code, and establish testing (visual regression, snapshot). Mentor peers and drive frontend best practices across products.
Summary Generated by Built In
Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.
What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client

A leading global digital banking platform and one of the largest neobank in Latin America, headquartered in Brazil. The company provides a mobile-first suite of financial services—including credit cards, savings accounts, and investments—designed to eliminate bureaucracy and high fees. By leveraging advanced data analytics and a customer-centric digital infrastructure, the organization delivers transparent and accessible financial solutions to millions of users across Brazil, Mexico, and Colombia.

What You’ll Do
  • Design, develop, and maintain reusable React components and Design System assets.
  • Build higher-order UI components, page templates, dashboards, forms, navigation systems, and global application layouts.
  • Define component APIs, standards, properties, and best practices to ensure consistency across multiple products.
  • Collaborate closely with UX and Product Design teams to translate designs into scalable frontend architecture.
  • Review, refactor, and productionize AI-generated or prototype code, ensuring maintainability, accessibility, performance, and reliability.
  • Implement packaging, versioning, release management, and CI/CD pipelines for Design System distribution.
  • Create comprehensive technical documentation for engineers and AI-assisted development tools.
  • Ensure compliance with accessibility (WCAG) standards, responsive design principles, and cross-browser compatibility.
  • Develop automated testing strategies including visual regression and snapshot testing.
  • Drive frontend engineering best practices, mentoring peers and raising the overall quality bar across teams.
What You Bring
  • Senior-level experience developing applications using React and TypeScript.
  • Strong expertise in modern frontend architecture and component-based development.
  • Proven experience building, maintaining, or scaling Design Systems and component libraries.
  • Advanced knowledge of HTML, CSS, responsive design, layout techniques, and browser rendering.
  • Experience publishing reusable packages and managing versioning and release processes.
  • Strong understanding of component composition and abstraction patterns.
  • Experience implementing accessibility best practices (WCAG), keyboard navigation, and screen reader compatibility.
  • Ability to transform prototype or AI-generated code into scalable, production-quality solutions.
  • Experience with UI testing methodologies, including visual regression and snapshot testing.
  • Strong problem-solving skills with the ability to work independently and take end-to-end ownership of technical initiatives.
Nice to have
  • Experience with monorepo tooling such as Turborepo or Nx.
  • Experience with modern build tools including Vite.
  • Familiarity with Ant Design or similar enterprise UI frameworks.
  • Experience using AI-assisted development tools such as Cursor, Claude, GitHub Copilot, or v0.
  • Experience with Next.js.
  • Familiarity with Tailwind CSS.
  • Experience working in consulting or enterprise-scale product environments.
English level

Intermediate English proficiency (B1+) or higher.

Work Type: Hybrid

Legal & Hiring Information
  • Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
  • Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
  • Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs
  • Compensation details are shared with candidates at the early stage of the recruitment process.
  • The offer is not binding until a signed contract is in place.
Your Benefits at Exadel

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

  • International projects
  • In-office, hybrid, or remote flexibility
  • Medical healthcare
  • Recognition program
  • Ongoing learning & reimbursement 
  • Well-being program
  • Team events & local benefits 
  • Sports compensation 
  • Referral bonuses 
  • Top-tier equipment provision
Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Skills Required

  • Senior-level experience developing applications using React and TypeScript
  • Experience building, maintaining, or scaling Design Systems and component libraries
  • Strong expertise in modern frontend architecture and component-based development
  • Advanced knowledge of HTML, CSS, responsive design, layout techniques, and browser rendering
  • Experience publishing reusable packages and managing versioning and release processes
  • Experience implementing accessibility best practices (WCAG), keyboard navigation, and screen reader compatibility
  • Ability to transform prototype or AI-generated code into scalable, production-quality solutions
  • Experience with UI testing methodologies, including visual regression and snapshot testing
  • Experience implementing packaging, versioning, release management, and CI/CD pipelines for Design System distribution
  • Strong problem-solving skills and ability to take end-to-end ownership of technical initiatives
  • Intermediate English proficiency (B1+) or higher

Exadel Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Exadel and has not been reviewed or approved by Exadel.

  • Fair & Transparent Compensation Pay is considered competitive for certain roles and locations, with timely and predictable payroll practices. Compensation ranges align to market in higher‑cost geographies and senior tracks, indicating offers can be strong when role and market justify it.
  • Healthcare Strength U.S. medical insurance options are described positively, with health coverage and PTO called out as standouts. Company materials and third‑party listings consistently include comprehensive healthcare as a core benefit.
  • Wellbeing & Lifestyle Benefits Flexible, remote‑first norms and outcome‑based work are positioned as core benefits. Learning support such as paid certifications, courses, and conferences is emphasized, alongside a well‑being program.

Exadel Insights

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The Company
HQ: Walnut Creek, CA
1,549 Employees
Year Founded: 1998

What We Do

For more than 20 years, Exadel has been delivering Digital Transformation services, enterprise and custom software solutions for Fortune 500 clients, including HPE, Deloitte, Home Depot and McKesson. With 20+ locations and delivery centers across the US and Europe, Exadel solves the most complex engineering problems using Agile methodologies, offering a scalable and skilled mix of multi-shore resources at the industry's most competitive price. Exadel’s digital transformation solutions and services help chart new strategies that are built upon creative thinking, cutting-edge design, and technical innovation, designed for the growing digital landscape of business. Enterprise Services - Digital Transformation Experts - Developing mission-critical software and mobile applications - Advising companies on how best to leverage open source technology - Helping companies plan and implement migrations to better technology stacks - Providing QA, automation, and testing services for application development - Supporting and maintaining applications and systems for companies - Providing on-line training and mentoring to companies - Assisting companies in evaluating their current enterprise software architecture and planning for improvements or new systems.

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