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Kotni Sachin

Senior Software Engineer, Nightfall AI
Bengaluru, Karnataka
linkedin.com/in/kotnisachin
kotnisachin1995@gmail.com
9789580904
Senior Software Engineer at Nightfall AI, leading UI architecture and design systems for large-scale security products. Owned cross-browser frontend platforms (Chrome, Firefox, Safari) and endpoint UIs, driving consistent, accessible, and high-performance experiences for complex enterprise DLP, policy configuration, and GenAI safety workflows.

Work Experience

Frontend Engineer

Nightfall AI

Jul 2022 - Current
  • Browser Extensions & Endpoint Platform

    • Led development and maintenance of enterprise DLP browser extensions (Chrome, Firefox, Safari), supporting file uploads/downloads, clipboard inspection, content classification, and Gen-AI prompt monitoring.
    • Designed and stabilized agent-paired vs standalone extension workflows, ensuring reliable device identity resolution, WebSocket connectivity, and policy enforcement.
    • Worked on the Email Encryption features on the Chrome extension
  • Gen-AI Security & Feature Flagging

    • Contributed to Gen-AI prompt monitoring and enforcement, enabling safe inspection of AI interactions across supported platforms.
  • Release Engineering & Enterprise Deployment

    • Owned and automated extension release pipelines across:

      • Chrome Web Store
      • Firefox Add-ons
  • Observability, Metrics & Reliability

    • Improved production debuggability by introducing hidden source maps for Sentry, enabling meaningful frontend stack traces without exposing source.
  • Frontend Architecture & Developer Experience

    • Built and maintained large-scale FE systems using React, TypeScript, Vite, SWC, React Query, Zustand, ShadCN, Tailwind.

    • Fixed subtle but critical issues:

      • Parallel API call failures caused by lazy GraphQL hooks
    • Improved developer experience and code longevity through consistent component patterns, testing standards, and tooling conventions.

  • Cross-Functional & Product Leadership

    • Acted as browser/endpoint subject-matter expert across engineering, product, and customer teams.
    • Regularly translated technical discoveries into product and UX improvements, reducing long-term complexity.
  • Worked on core integration like GitHub, M365, Zendesk, and others

  • Worked on the graphql layer of the product.

  • Upgraded the codebase with the latest libraries

    • React from v15 to v18
    • Upgraded webpack and other dependencies to take advantage of the lazy loading of components
  • Introduced react-testing-library so that it can be easy to upgrade to react 18

  • Added cache header for a few static files on the client side so that they are not served on every network call

Member of Technical staff

Jan 2022 - Jul 2022
  • Worked Primarily on the CBC Product of the company
  • Set the UI codebase with the component library, instructors, and the learner’s app
  • Wrote many components which will be useful for the overall product
  • Set up the CI/CD for the Frontend Repo
  • Explore various ways of deploying the Frontend (serverless and EC2).

Member Of Technical Staff

Apr 2020 - Dec 2021
  • Actively contributed to the projects like Reports and the AWS Marketplace app at Clumio.
  • Implemented the infinite scrollable list and other components which are extensively used at Clumio. It helped the user to lazy load the items in the table when they scroll down.
  • Played a major role in implementing Module Federation for the Clumio UI Application. It helped to decouple the application into smaller parts and also reduced the CI time as it runs test cases of the package in which the code has been updated.
  • Mentored Interns onboard to the company.

Software Engineer III

Aug 2019 - Apr 2020
  • I was involved in the design discussions and requirement gathering of the project(Bridge).
  • Significantly reduced the response time of an API from 22secs to 7secs which helped in faster loading of the application.
  • Involved in creating generators that internally helped other teams in reducing their project setup at least by 5 days.
  • Helped streamline the CI/CD process for all the applications which are being used as a standard across many applications in Walmart Bangalore.

Software Engineer II

Aug 2017 - Jul 2019
  • Developed a total of 3 applications using ReactJS and NodeJS for Walmart.
  • I have played a major in setting up the application infrastructure such as the setting up of the dev, stage, and prod instances of the application in Walmart's proprietary cloud i.e. OneOps and Azure PaaS.

Internships

Intern

Jan 2017 - Jul 2017

Developed a front-end application for India Retail where the vendors can book slots to deliver the purchase orders to the Walmart warehouse.

Projects

Home Security System

By using RaspberryPI we built a security system and that sends the notification to the user whenever a breach is detected to the user’s mobile application. The user can be able to provide access to trusted ones using the application. Whenever the user or the trusted ones are in/out the vicinity the system automatically gets activated/deactivated.

Education

Bachelors Computer Science

Vellore Institute of Technology

2013 - 2017

Skills

  • Typescript
  • Javascript
  • React
  • Graphql
  • NodeJS
  • Vite
  • Zustand
  • Apollo Graphql
  • React-Query
  • Tailwind
  • C
  • C++
  • Data Structures
  • Programming
  • Machine Learning
  • Python
  • Management
  • HTML
  • Javascript
  • Linux