Appen
1 day ago

Senior Software Engineer - React UI

Job Description

About Appen

Appen is a leader in AI enablement for critical tasks such as model improvement, supervision, and evaluation. To do this we leverage our global crowd of over one million skilled contractors, speaking over 180 languages and dialects, representing 130 countries. In addition, we utilize the industry's most advanced AI-assisted data annotation platform to collect and label various types of data like images, text, speech, audio, and video.

Our data is crucial for building and continuously improving the world's most innovative artificial intelligence systems and Appen is already trusted by the world's largest technology companies. Now with the explosion of interest in generative AI, Appen is helping leaders in automotive, financial services, retail, healthcare, and governments the confidence to deploy world-class AI products.

At Appen, we are purpose driven. Our fundamental role in AI is to ensure all models are helpful, honest, and harmless, so we firmly believe in unlocking the power of AI to build a better world. We have a learn-it-all culture that values perspective, growth, and innovation. We are customer-obsessed, action-oriented, and celebrate winning together.

At Appen, we are committed to creating an inclusive and diverse workplace. We are an equal opportunity employer that does not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Appen is seeking a highly skilled and motivated Senior Software Engineer (React) to join our dynamic team. In this role, you will leverage your deep expertise in front-end development to design and build scalable, high-performance web applications. You’ll play a key role in developing intuitive user interfaces that support the advancement of AI and machine learning technologies.

Key Responsibilities:

  • Design, develop, and maintain modular and reusable front-end components using React and TypeScript.
  • Demonstrate strong proficiency in JavaScript (ES6+), TypeScript, HTML5, and CSS.
  • Optimize front-end performance through techniques like code splitting, lazy loading, and structured rendering.
  • Build applications with a focus on scalable and modular architecture.
  • Work with modern front-end build tools and bundlers such as Webpack, Vite, and Babel.
  • Implement advanced state management solutions using Redux, along with middleware such as Redux Thunk, Redux Saga, Zustand, or similar.
  • Integrate and configure monitoring and analytics tools like Google Analytics.
  • Write and maintain unit and integration tests using tools like Jest, React Testing Library, or Cypress.
  • Solid understanding of Core Java, OOP (Object-Oriented Programming) principles, and knowledge of Spring Framework
  • ,

    Preferred Skills (Nice to Have):

  • Familiarity with Server-Side Rendering (SSR) or Static Site Generation (SSG) using frameworks such as Next.js.
  • Understanding of web accessibility standards and responsive design principles.
  • Appen is the global leader in data for the AI Lifecycle with more than 25 years’ experience in data sourcing, annotation, and model evaluation. Through our expertise, platform, and global crowd, we enable organizations to launch the world’s most innovative artificial intelligence products with speed and at scale. Appen maintains the industry’s most advanced AI-assisted data annotation platform and boasts a global crowd of more than 1 million contributors worldwide, speaking more than 235 languages. Our products and services make Appen a trusted partner to leaders in technology, automotive, finance, retail, healthcare, and government. Appen has customers and offices globally. 

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