Sayso Analytics
Developed backend systems for an analytics dashboard handling large-scale production data and reporting workflows. Built cron jobs to fetch Stripe data and optimized reporting across 250+ tables.
Hi, I'm Harsh Karetiya, Software Engineer specializing in backend development, payment systems, and scalable architectures.
Developing scalable backend infrastructures
Open to new opportunities
Selected Projects
A collection of backend systems and architecture implementations focusing on performance and scalability.
Day and Night IV
Built the complete backend architecture with scalable APIs, Stripe integrations, RBAC authentication, and secure HIPAA-compliant practices.
Resumedone
Managed billing and subscription infrastructure, integrating multiple Payment Service Providers (PSPs) and migrating 6 years of payment data into SQL databases.
Work History
January 2025–May 2026
Software Developer
Developed and maintained scalable web applications, specializing in backend engineering, payment systems, analytics infrastructure, and subscription management.
Education
–2025
B.Tech Computer Engineering
–2021
12th Standard
–2019
10th Standard
About Me
Software Engineer based in Surat, Gujarat, India.
I specialize in backend development, payment systems, and scalable architectures. I have extensive experience in designing APIs, integrating multiple payment providers, and building secure subscription infrastructures.
With a strong foundation in Node.js, cloud-based solutions, and database optimization, I enjoy developing data pipelines and complex reporting systems that drive meaningful insights.
What They Say
Rafael has a rare ability to turn a messy problem into something simple and obvious in hindsight. Our conversion numbers speak for themselves.
Marta Silva
Client