This position is posted by Jobgether on behalf of Speak . We are currently looking for a Senior Full-stack Engineer in San Francisco . This role offers the opportunity to build cutting-edge, AI-powered educational products that redefine how people learn languages. You will work across the full stack, from designing polished, interactive front-end experiences to contributing backend logic that powers AI-driven features. The ideal candidate thrives in a fast-paced, collaborative environment, partnering closely with product, design, and machine learning teams to deliver impactful solutions. You will play a key role in shaping the product experience for millions of learners worldwide while helping the company scale globally.

Accountabilities

Develop novel AI-driven product experiences and user interfaces for web applications.

Own the end-to-end development cycle of features, from conception through production.

Collaborate closely with product, design, and machine learning teams to deliver high-quality, polished consumer applications.

Write and deploy code efficiently, shipping features quickly and iteratively.

Contribute to both frontend and backend systems, ensuring scalable and maintainable architecture.

Help improve development processes and mentor junior engineers where applicable.

Qualifications

4+ years of experience building polished web-based product experiences, with extensive expertise in React.

Strong full-stack development skills and comfort working across front-end and back-end technologies.

Ability to balance building robust systems with pragmatic, scrappy solutions when needed.

Experience working closely with cross-functional teams including product, design, and machine learning.

Excellent communication skills and a collaborative mindset.

Comfort shipping features quickly in a fast-paced, growth-oriented environment.

Passion for creating transformative educational experiences and improving outcomes for learners.

What you can expect

Competitive salary: $170K – $280K with equity opportunities.

Hybrid work model with San Francisco office access.

Opportunities to work on globally impactful, AI-powered educational products.

Collaborative, growth-oriented team culture with focus on professional development.

Flexible working hours and remote work options.

Exposure to cutting-edge AI technologies and innovative learning tools.

Thank you for your interest!

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