Senior Full-stack Engineer

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

As a Senior Full-stack Engineer, you will:

·         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.

To succeed in this role, you should have:

·         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.

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.

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

When you apply, your profile goes through our AI-powered screening process designed to identify top talent efficiently and fairly.
🔍 Our AI evaluates your CV and LinkedIn profile thoroughly, analyzing your skills, experience and achievements.
📊 It compares your profile to the job’s core requirements and past success factors to determine your match score.
🎯 Based on this analysis, we automatically shortlist the 3 candidates with the highest match to the role.
🧠 When necessary, our human team may perform an additional manual review to ensure no strong profile is missed.

The process is transparent, skills-based, and free of bias — focusing solely on your fit for the role. Once the shortlist is completed, we share it directly with the company that owns the job opening. The final decision and next steps (such as interviews or additional assessments) are then made by their internal hiring team.

Thank you for your interest!

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