Sai Ch — Senior Software Engineer

- 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**.

Stackforce AI infers this person is a Fullstack Developer with expertise in SaaS applications and security compliance.

Location: Hyderabad, Telangana, India

Experience: 11 yrs 4 mos