Senior Frontend Engineer (React & TypeScript)

Posted Yesterday
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Hiring Remotely in CAN
Remote
Senior level
Information Technology • Professional Services • Software • Consulting
The Role
Design, develop, and maintain scalable React + TypeScript web applications. Build reusable components, optimize performance (Core Web Vitals), integrate with REST/GraphQL backends, implement telemetry, write automated tests, participate in agile processes, perform code reviews, and mentor junior engineers.
Summary Generated by Built In

This is a remote position.

Job Description – Senior Frontend Engineer

We are seeking an experienced Senior Frontend Engineer to design, develop, and maintain modern, scalable web applications using React 18+, TypeScript, and modern JavaScript (ES6+). In this role, you will be responsible for building high-quality user interfaces, developing reusable and maintainable components, and integrating frontend applications with backend services through RESTful APIs. You will work closely with cross-functional teams including product managers, designers, backend engineers, and QA teams to deliver exceptional user experiences while ensuring application performance, reliability, and scalability.

The ideal candidate will have strong expertise in React's modern features such as hooks, concurrent rendering, and component-driven architecture. You will be responsible for implementing frontend best practices, managing application state using tools such as Redux Toolkit, Context API, or Zustand, and contributing to the overall frontend architecture. Experience building enterprise-scale applications with a focus on maintainability and performance is essential.

This position requires a strong understanding of frontend performance optimization techniques, including lazy loading, code splitting, memoization, and Core Web Vitals monitoring. You will be expected to analyze application performance metrics, identify opportunities for improvement, and contribute to KPI reviews focused on user experience, page performance, and engagement. Additionally, you will implement and monitor application telemetry using tools such as Application Insights and OpenTelemetry to proactively identify and resolve issues.

The successful candidate will participate in agile development processes, contribute to technical design discussions, perform code reviews, and ensure code quality through automated testing frameworks such as Jest and React Testing Library. Strong communication skills, a collaborative mindset, and the ability to mentor junior developers while driving technical excellence are highly valued.

Qualifications:

  • 8+ years of software development experience with a strong focus on frontend engineering.
  • Extensive experience with React 18+, TypeScript, and modern JavaScript (ES6+).
  • Strong knowledge of state management solutions including Redux Toolkit, Context API, and/or Zustand.
  • Experience integrating frontend applications with RESTful APIs and backend services.
  • Expertise in frontend performance optimization and Core Web Vitals.
  • Experience with application monitoring, observability, and telemetry tools.
  • Proficiency with testing frameworks such as Jest and React Testing Library.
  • Experience working in Agile/Scrum environments and participating in code reviews.
  • Strong problem-solving, communication, and collaboration skills.


Requirements
  • React 18+ (Hooks, Suspense, Concurrent Rendering, Component-Driven Architecture)
  • TypeScript
  • Modern JavaScript (ES6+)
  • HTML5, CSS3, Responsive Web Design
  • State Management (Redux Toolkit, Context API, Zustand)
  • REST API and GraphQL Integration
  • Frontend Architecture and Design Patterns
  • Performance Optimization (Lazy Loading, Code Splitting, Memoization)
  • Core Web Vitals (LCP, CLS, INP)
  • Application Monitoring and Telemetry (Application Insights, OpenTelemetry)
  • Testing Frameworks (Jest, React Testing Library)
  • Git Version Control
  • Agile/Scrum Methodologies
  • Code Reviews and CI/CD Practices
  • Cross-Browser Compatibility and Accessibility Standards


Skills Required

  • 8+ years of software development experience with a strong focus on frontend engineering.
  • Extensive experience with React 18+ (Hooks, Suspense, Concurrent Rendering).
  • Proficiency in TypeScript.
  • Strong knowledge of modern JavaScript (ES6+).
  • Experience with state management solutions (Redux Toolkit, Context API, Zustand).
  • Experience integrating frontend applications with RESTful APIs and GraphQL.
  • Expertise in frontend performance optimization (lazy loading, code splitting, memoization) and Core Web Vitals.
  • Experience with application monitoring, observability, and telemetry tools (Application Insights, OpenTelemetry).
  • Proficiency with testing frameworks such as Jest and React Testing Library.
  • Strong HTML5, CSS3, and responsive web design skills.
  • Familiarity with Git version control and CI/CD practices.
  • Experience working in Agile/Scrum environments, performing code reviews, and mentoring developers.
  • Knowledge of cross-browser compatibility and accessibility standards.
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The Company
45 Employees
Year Founded: 2008

What We Do

Workiy is a global company with more than 20 years of experience that provides end-to-end digital solutions, consulting and implementation services to its clients, including digital solutions and staffing services.

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