Sai Ch

About Sai Ch

Extensive experience developing and maintaining scalable web applications using **Ruby on Rails, NestJS, React.js, Angular, GraphQL, Sidekiq, Redis, ElasticSearch, Go, Python, PostgreSQL, MongoDB, AWS, and GCP**- Skilled in building secure applications: preventing **X-Forwarded-For header spoofing**, mitigating **XSS attacks**, and performing **Rails framework upgrades (v4 → v5)** to patch vulnerabilities and ensure compliance- Hands-on experience ensuring **ADA & HIPAA compliance**- Proficient in writing **unit, functional, and end-to-end tests** with **RSpec, Cucumber, Jasmine, and Jest**- Integrated multiple **payment gateways** including **UPI, PayU, Paytm, PayPal, Stripe, Shift4, JCC**, and others- Strong ability to write **clean, maintainable, and high-quality code** that integrates with upstream backend services- Developed **responsive, user-friendly UIs** using **HTML5, CSS3, TailwindCSS, Bootstrap, and Material UI**, with support for **i18n multi-language features**- Experienced in creating, upgrading, and maintaining **JavaScript libraries and reusable widgets** for consistent data handling- Solid understanding of **DOM, events, callbacks, browser injections, REST, JSON, SSL, cookies, web storage, and HTTP methods**- Conducted **cross-browser compatibility testing**(Firefox, Chrome, Safari, Edge)- Skilled in **version control best practices** using **GitHub, GitLab, and Bitbucket**- Well-versed in **Agile/Scrum methodologies**- Expertise in **performance optimization and problem-solving** using **Ruby on Rails, NestJS, React, and Python**.

Experience

1. Senior Software Engineer

   Cendyn

   Feb 2024 — Present

Education

• Sri Vasavi Engg College-TPG

  B.Tech, Information Technology

  2009 — 2013

Skills

• Rspec
• Ajax
• Postgresql
• Mysql
• Mongodb
• Jquery
• Ruby
• Sql
• Restful Webservices
• Git
• Bootstrap
• Elasticsearch
• Amazon Web Services (Aws)
• Application Programming Interfaces
• Html5
• Amazon Ec2
• Artificial Intelligence
• Ubuntu
• Coffeescript
• Ruby on Rails
• Angularjs
• Haml
• Representational State Transfer (Rest)