Principal Software Engineer
Core
Technical authority for a high-revenue web platform, mobile app, and ML-powered ad-tech optimization engine, focusing on performance and architecture.
Role type
Principal Software Engineer (Independent Contractor)
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 (server-side rendering), MySQL, BigQuery, GCP (Cloud Run, Cloud Build, Load Balancing)
Preferred skills
Ad-tech industry experience, Cloudflare, Fastify, Flutter, Golang, Rust, Machine learning for ad-tech optimization
Technologies
React.js, Next.js, Node.js, Fastify 5, MySQL, BigQuery, GCP, Cloud Run, Cloud Build, Google Ad Manager, GTM, GPT.js
Responsibilities
End-to-end technical ownership, architecture design, server-side rendering pipeline maintenance, data layer management, performance optimization, ML pipeline maintenance
Seniority
Principal, hands-on IC