Senior Fullstack Developer (Node.js/React)

TL;DR

Senior Full-Stack Developer (Node.js/React): Build, maintain, and optimize full-stack services in a microservices architecture with an accent on AI-assisted development tools and cross-functional collaboration. Focus on integrating Data Science prototypes into production, designing reusable libraries and tooling, and developing scalable systems with Kafka, MongoDB, and AWS.

Location: Remote (Ukraine, Armenia)

Company

International software development company with collaborative teams in Israel and Armenia.

What you will do

• Collaborate with Product Owners, development, and support teams to solve complex product and engineering challenges.
• Build, maintain, and optimize services using JavaScript/TypeScript in microservices architecture.
• Work with Data Science, Data Engineering, and Full Stack teams to bring prototypes into production.
• Design and maintain reusable internal libraries, shared modules, and development tooling.
• Contribute to architectural decisions and promote engineering best practices.
• Develop scalable systems using MongoDB, SingleStore, Kafka, AWS, and related technologies.
• Ensure technical alignment and effective communication across cross-functional teams.

Requirements

• 6+ months hands-on experience with Claude Code or similar AI coding tools (Codex, Cursor), including MCP, custom .md files, and subagent workflows.
• 5+ years commercial experience with JavaScript/TypeScript across backend and frontend.
• Strong production experience with Node.js and React.
• Experience with AWS cloud environments.
• Solid understanding of microservices architecture and service-to-service communication.
• 2+ years experience with Kafka and SNS/SQS.
• Strong knowledge of SQL and NoSQL databases (MongoDB, Amazon DocumentDB, SingleStore).
• Experience with GraphQL APIs.
• Advanced English communication skills

Culture & Benefits

• 15 vacation days annually
• Flexible working hours
• Fully remote work environment
• Collaborative international team
• Opportunities for professional growth and learning
• Supportive and fast-paced engineering culture