Senior Full-Stack Engineer (React, Node.js, TypeScript, AWS)

We are looking for a Russian-speaking senior, well-rounded Full-Stack Engineer who is equally comfortable building polished React/TypeScript interfaces and substantial backend systems with Node.js/TypeScript. This is a long-term opportunity to join an established engineering environment and take meaningful ownership of production systems, architecture decisions, and technical outcomes. The role is fully remote, working EST hours. Fintech experience is preferred. Responsibilities: -Build and maintain production applications using React and TypeScript -Develop and own backend APIs and services using Node.js/TypeScript -Work with AWS infrastructure and production deployments -Design and maintain PostgreSQL schemas, queries, migrations, and data models -Collaborate with senior engineers and engineering leadership on architecture and technical decisions -Troubleshoot production issues and improve system performance, reliability, and scalability Requirements: -7+ years of professional software engineering experience -Strong, recent production experience with React + TypeScript -Significant hands-on production experience with Node.js + TypeScript, including backend APIs or services -Production experience with AWS and PostgreSQL -Russian-speaking proficiency is required, along with strong English communication skills -Stable professional background and interest in a long-term, full-time engagement Nice to Have: Experience with AWS Fargate/ECS, containers, S3, CloudFront, or fintech, payments, regulated systems, and SOC 1/SOC 2 environments would be a strong advantage. Important: This is not a frontend-heavy role with occasional Node.js work. We are specifically looking for engineers who can demonstrate meaningful, recent production ownership across both React frontend and Node.js backend development.