Principal Software Engineer (React Node) - Remote -EU or USA
Core
Technical authority responsible for end-to-end development, architecture, and long-term strategy of a high-revenue web platform, mobile app, and ML-powered ad-tech optimization systems.
Role type
Principal Software Engineer (React/Node)
Builds
High-revenue web platform, mobile app, and ML-powered ad-tech optimization systems
Domain
Ad-tech, decentralized finance (DeFi), fintech, healthcare
Deliverable
production ML models | product features | infrastructure
Required skills
Node.js with TypeScript, React in server-side rendering context, MySQL database design and query optimization, BigQuery for large-scale datasets, GCP (Cloud Run, Cloud Build, Cloud SQL, Load Balancing)
Preferred skills
Ad-tech industry experience, Cloudflare CDN configuration, Fastify 5 patterns, Flutter, Golang, Rust, Machine learning for ad-tech optimization
Technologies
React 19, Next.js, Node.js, Fastify 5, MySQL, BigQuery, GCP, Cloud Run, Cloud Build, GTag, GPT.js
Responsibilities
Architecture design and long-term technical strategy, Server-side rendering pipeline implementation, Data layer management, Performance optimization at scale, ML pipeline maintenance
Seniority
Principal, hands-on IC