# Robert Kovacs > CTO at FirstPromoter. Ruby on Rails, performance, and scaling. ## About Robert Kovacs is the CTO at [FirstPromoter](https://firstpromoter.com/?fpr=robert), based in Lisbon, Portugal. FirstPromoter is an affiliate tracking platform powering 7,000+ affiliate programs, processing 10M+ payment webhooks per week from Stripe, Chargebee, Braintree, and Paddle. Previously he worked at ROOM Inc. (real-time IoT platform), Net-a-Porter (micro frontend checkout), Partbot (automotive e-commerce), and Wolfpack Digital (fintech/healthcare). ## Technical Focus Ruby on Rails performance at scale, PostgreSQL optimization, Redis caching, Sidekiq background processing, Google BigQuery analytics, and affiliate/referral tracking systems. ## Links - Website: https://robikovacs.com - Blog: https://robikovacs.com/blog/ - FirstPromoter: https://firstpromoter.com/?fpr=robert - GitHub: https://github.com/robikovacs - LinkedIn: https://www.linkedin.com/in/rikovacs/ ## Blog Posts - [Ruby on Rails Performance: 7 Lessons from Scaling FirstPromoter](https://robikovacs.com/blog/ruby-on-rails-performance-lessons-scaling-saas/) - [What Happens When Your API Has to Open a Door](https://robikovacs.com/blog/building-software-for-physical-spaces-at-room/) - [What 2018 Taught Me About Building Software](https://robikovacs.com/blog/a-year-of-building-2018-in-review/) - [We Built a Bike Security App in 24 Hours](https://robikovacs.com/blog/lockhere-techsylvania-hackathon/) - [Why I Keep Choosing Ruby on Rails](https://robikovacs.com/blog/why-i-build-with-ruby-on-rails/)