Chess.com
Senior Fullstack Developer (Chessable & Courses)
Remote Senior $4.7k–$12.8k/moest.
Summary
Chess.com is the #1 platform for playing, learning, and enjoying chess with 600+ remote employees serving 200M+ players worldwide. Chessable is their leading chess e-learning platform, and they seek an experienced Senior Fullstack Developer to build and maintain applications at scale with a mission-driven, flat, no-corporate culture.
What you'll do
- Work with experienced engineers on building new and maintaining existing functionalities for Chessable and Chess.com courses
- Contribute to technology and architecture decisions for new solutions
- Build and release applications for millions of users across all stack layers: infrastructure, databases, DevOps, backend, and frontend
- Supervise AI agents for high-impact architectural decisions, security, and scalability using AI-first engineering mindset
- Ensure code quality, performance profiling, and stability through best practices and design patterns
- Collaborate with a distributed team of talented engineers
Requirements
- Experience with PHP 7.4+ and at least two popular PHP frameworks (Slim, Symfony)
- Proficiency in TypeScript/JavaScript with React and Vue.js
- Experience with MySQL and relational databases
- Experience with ElasticSearch, SOLR, MongoDB, or other popular NoSQL databases
- AI-first mindset and prompt engineering skills
- API-first design proficiency with RPC, RESTful, or GraphQL APIs
- Familiarity with message brokers: Kafka, RabbitMQ, Redis Pub/Sub, or Amazon SQS
- Performance profiling and debugging skills with tools like XDebug or Blackfire
- CI/CD orchestration experience with automated testing and static analysis (PHPStan/Psalm)
- Understanding of programming best practices and design patterns
- Strong collaboration and communication skills in fully distributed teams
- Sense of ownership and responsibility
- Chess player preferred
- Lifelong learner mentality
Conditions
- Full-time position
- 100% remote work (work from anywhere)
- Fully distributed team across 60+ countries
- Mission-driven, flat, life-celebrating, no-corporate culture
- Access to unlimited AI agents (Cursor, Claude, Junie) for daily operations