Founding Full-Stack Engineer

Навыки

• Android
• CI/CD
• C++
• C#
• CSS
• EdTech
• Go

О компании и продукте

• We're a Y Combinator–backed EdTech startup on a mission to help people acquire languages and connect across cultures — and we're hiring a Founding Full-Stack Engineer to join our small, tight-knit founding team in San Francisco. This is a rare opportunity to shape the product, architecture, and engineering culture from the ground up at a fast-growing, mission-driven company in the language learning space.
• You'll work in-person with the founders every day, own large swaths of the codebase, and ship features end-to-end — from backend services and data models all the way through mobile UI and deployment. If you thrive at the intersection of great craft, AI-driven product experiences, and genuine mission, this role is for you.

Задачи

• Collaborate in-person with the founding team daily in San Francisco
• Own large parts of the codebase across mobile, web, backend, infrastructure, and AI
• Ship full end-to-end product features — from backend logic through UI to deployment
• Build high-performance mobile experiences in React Native
• Implement and maintain video streaming and HLS pipelines
• Develop AI-driven learning experiences using LLMs and audio/video models
• Build and maintain backend services in Go
• Design data models, schemas, and performance optimizations in PostgreSQL
• Improve developer tooling, CI/CD pipelines, and observability
• Influence foundational architecture, engineering culture, product direction, and UX
• Move fast while maintaining a strong commitment to quality, craftsmanship, and reliability

Требования

• Must-haves (dealbreakers)
• 3+ years of professional software engineering experience delivering end-to-end features across mobile, web, and backend systems
• Strong experience building backend services in Go (Golang) with PostgreSQL, including data modeling and performance optimization
• Experience delivering mobile apps using React Native (Expo) or native iOS/Android development
• Strong TypeScript fundamentals and solid foundations in HTML, CSS, JavaScript, and REST APIs
• Deep understanding of at least two compiled languages, including Go and one other (e.g., Swift, Kotlin, C++, Java, C#)
• Writes testable code with unit, integration, and end-to-end tests (mocks, pure functions)
• Experience with at least one scripting language (Python or Ruby) for tooling and automation
• Comfortable with Unix-based systems, Git, and terminal workflows
• Excellent debugging skills using Chrome DevTools, RN profiler, or Xcode Instruments
• Familiarity with video streaming (HLS) and building AI/LLM-driven features

Будет плюсом

• Cloud provider experience (AWS, GCP, Azure, or DigitalOcean)
• CI/CD experience with GitHub Actions
• Profiling and performance optimization experience
• Prior startup or founder experience
• Comfortable using AI development tools (Cursor, Copilot, GPT, Claude, etc.)
• Speaks multiple languages or is actively learning one
• familiarity with immersion-first language learning is a big plus

Условия

• Salary: $150,000 – $200,000 USD annually
• Meaningful early-stage equity
• Visa sponsorship available when needed
• LOCATION
• This role is fully on-site in San Francisco, CA
• You'll work in person with the founding team every day
• Candidates must be willing and able to commit to full-time, in-person work in San Francisco

Паспорт вакансии

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