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.
Position Summary Appen is seeking a highly skilled and motivated Sr React UI Engineer to join our dynamic team. In this role, you will use your extensive knowledge of software development to build and enhance complex systems and applications, contributing to the evolution of AI and machine learning.

Key Responsibilities

• Ensure the performance, quality, and responsiveness of applications by identifying bugs and solving complex problems.
• Collaborate effectively with product managers, data scientists, and other engineers to define and achieve project goals.
• Mentor junior developers, providing guidance on coding standards, design principles, and the application of new technologies.
• Lead code and design reviews, championing high-quality software development and fostering a culture of continuous improvement.
• Contribute to all stages of the software development lifecycle, from ideation to deployment and maintenance.
• Translate business requirements into robust, scalable, and secure software solutions

Qualifications:

• Bachelor's Degree in Computer Science, Software Engineering, or a related field. A Master's Degree is a plus.
• 4-5 years of experience in software development.
• Proficient in front-end technologies – React.js, HTML5, CSS3, JavaScript.
• Hands-on experience developing software using agile methodologies.
• Deep understanding of algorithms, data structures, and design patterns. Strong analytical and problem-solving skills.
• Experience with AI and machine learning is highly desirable.
• Excellent communication skills, with the ability to explain complex technical concepts to non-technical stakeholders.
• Demonstrated leadership skills and ability to mentor junior team members.

#LI-Onsite
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.