Sachin Doddahubballi

System Engineer

Tata Consultancy Services•  February 2022 - Present•  Mumbai

Developed and optimized reusable React components for authentication flows (login, registration, and MFA), enhancing security by 40% through real-time QR code verification and API integration. Implemented dynamic form validation and dropdowns in the Profile module using React hooks (useState, useEffect, useRef), reducing input errors by 25% and improving UX. Integrated RESTful APIs for KYC validation, ensuring real-time Tax Identification Number (TIN) and country code verification, achieving 100% regulatory compliance. Improved application performance by implementing React Lazy Loading, useMemo, useCallback, reducing unnecessary re-renders and optimizing load times. Resolved critical production issues, including UI responsiveness, API failures, and performance bottlenecks, ensuring a seamless experience for 1M+ daily users. Managed code repositories and workflows using JIRA and Bitbucket, maintaining 100% on-time task completion through version control and CI/CD best practices.

Intern

Attis Systems•  July 2019 - August 2019•  Belagavi, Karnataka

Designed 3D models of mathematical objects and a static website for educational purposes.