Senior Fullstack Engineer, Growth

Speak is revolutionizing language learning through AI technology, having recently achieved a $1B valuation with their Series C funding. As a Senior Fullstack Engineer on the Growth team, you'll be at the forefront of developing AI-powered language learning experiences that are changing how people acquire new languages globally.

The company has established itself as the top-grossing education app in South Korea and has expanded to over 40 countries. Backed by prestigious investors including Accel, OpenAI, Founders Fund, Y Combinator, and Khosla Ventures, Speak is well-positioned for continued growth and innovation.

This role offers a unique opportunity to work on cutting-edge AI applications in language learning, combining technical expertise with real-world impact. You'll be building novel AI-driven product experiences and user interfaces, working closely with cross-functional teams including product, design, and machine learning.

The ideal candidate will bring 4+ years of experience in building polished web applications, with strong React expertise and a track record of shipping high-quality code quickly. You'll be joining a team of 90+ professionals spread across global offices in San Francisco, Seoul, Tokyo, Taipei, and Ljubljana, offering exposure to international markets and diverse perspectives.

What makes this role particularly exciting is the combination of technical challenges and meaningful impact. You'll be working on technology that helps millions of people achieve their language learning goals, particularly in English, Spanish, and French. The company's mission to make language learning more accessible through AI-powered conversation practice presents unique technical challenges and opportunities for innovation.

The position offers competitive compensation ($170K - $280K) and the chance to work with a thoughtfully assembled team in San Francisco. Speak values craft, growth, and collaboration, making it an ideal environment for engineers who want to make a significant impact while working with respected colleagues.

If you're passionate about using technology to solve real-world problems, enjoy rapid iteration and deployment, and want to be part of a team that's redefining language learning through AI, this role offers an exceptional opportunity to contribute to a fast-growing, mission-driven company.