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Principal Software Engineer

1 month, 3 weeks ago
United States, Canada, United Kingdom, Ireland, Netherlands
Contract
Lead
Software Engineer
Software Development
Affiliate Marketing Blockchain CDN Cloudflare E-commerce Fastify Flutter GCP Go Google Tag Manager Load Balancing Machine Learning MySQL Next.js Node.js React Rust
Apply Now
pubGENIUS

pubGENIUS

pubGENIUS is an international studio specializing in designing and developing full stack React/React Native + NodeJS applications for fintech, crypto, and healthcare industries. They engineer customized solutions for digital publishers to maximize reve...

Internet Software & Services
11-50
Founded 2016
View All Jobs 11

Description

  • Own end-to-end technical leadership for a high-revenue web platform and mobile app.
  • Define architecture decisions and long-term technical strategy across the product stack.
  • Build and maintain the server-side rendering pipeline using Node.js, Fastify 5, and React 19.
  • Manage the data layer across MySQL and BigQuery.
  • Oversee GCP infrastructure, including Cloud Run, Cloud Build, Cloud SQL, and global load balancing.
  • Integrate and support ad-tech systems such as Google Ad Manager, GTM, GTag, and GPT.js.
  • Optimize site speed, server performance, and system scalability where milliseconds matter.
  • Maintain and improve the ML pipeline that powers ad-tech optimization.
  • Work directly with stakeholders to set technical direction and remove bottlenecks.
  • Ship production-grade code across web, mobile, and infrastructure systems.

Requirements

  • Production-proven experience with Node.js and TypeScript.
  • Strong experience using React in a server-side rendering context.
  • Hands-on experience with MySQL, including database design, query optimization, and ORM usage.
  • Experience querying and managing large-scale datasets with BigQuery.
  • Hands-on GCP experience with Cloud Run, Cloud Build, Cloud SQL, and load balancing.
  • GCP certification is a significant bonus.
  • Experience in ad-tech, including ad serving, yield optimization, or programmatic advertising, is preferred.
  • Affiliate marketing experience, especially with Anura and Everflow, is preferred.
  • Experience with Cloudflare, including CDN configuration, caching strategies, and Workers, is preferred.
  • Fastify experience, especially Fastify 5 patterns, is preferred.
  • Flutter experience for mobile app contribution is preferred.
  • Golang or Rust experience for high-performance service work is preferred.
  • Experience applying machine learning to ad-tech optimization is preferred.
  • Experience in DeFi, crypto, NFT, blockchain, fintech, or healthcare is preferred.
  • Full-time commitment is expected for this independent contractor role.
  • Must be located in the US, Canada, UK, Ireland, or the Netherlands.

Benefits

  • Fully remote work.
  • Flexible hours.
  • Paid vacation and sick days.
  • Competitive rate based on experience.
  • Direct application process with no staffing agencies or third-party recruiters.
  • Equal Opportunity Employer status with merit-based evaluation.

Interested in this position?

Apply directly on the company website

Apply Now

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