We are looking for a strong Full-Stack Developer with a good understanding of backend/frontend development, databases, network interaction, and high-load system architecture.

Main Stack Backend: Node.js, Express, Sequelize Frontend: React, Vite, Tailwind CSS, Zustand, Axios Databases: MySQL, PostgreSQL Real-time: WebSocket, Socket.IO, Centrifugo

Databases Proficient work with MySQL / PostgreSQL Transactions, locks, concurrent access Building and optimizing complex SQL queries Understanding of race conditions and concurrency issues

Infrastructure / DevOps Docker Nginx configuration Redis, RabbitMQ, and task queues Elasticsearch + Kibana Prometheus + Grafana Understanding of CDNs Understanding of DDoS protection principles at L3/L7 levels Understanding of proxy / reverse proxy operation

Frontend React Vite Understanding of native Webpack configuration Tailwind CSS Zustand Axios Basic knowledge of PixiJS Basic understanding of SEO

API / Integrations Ability to understand and work with undocumented APIs OAuth and basic authorization principles Telegram Bot API Experience/understanding of working with TDLib

AI Tools Proficient work with Claude and ChatGPT Using AI tools in daily development: code analysis and writing, refactoring, debugging, and problem-solving Ability to competently set technical tasks for neural networks and verify results

Security Understanding of SQL Injection and protection methods Checking for type juggling and incorrect input data Race conditions Basic understanding of cryptography: RSA, SHA, and hashing Understanding of obfuscation Understanding of browser/device fingerprinting

Architecture Ability to design the architecture of high-load systems Understanding of scalability, fault tolerance, and concurrent data processing Understanding of the interaction between services, queues, databases, cache, and real-time components

Will be a plus Basic understanding of probability theory Understanding of blockchain principles and main networks: Bitcoin, TON, Ethereum/ERC, TRON Experience with non-standard APIs and integrations

Contact: @igorclbbet

Java Job in Telegram | in VK | in Max