Sushil Bajpai

Software Engineer (Full Stack)

Talent

Gurugram, HaryanaMember since August 23, 2026

TypeScriptPythonSQLReactNext.jsReact NativeZustandNode.jsFastifyJWTRate LimitingCachingPostgreSQLRow-Level SecurityMongoDBRedisMigrationsDockerGitHub ActionsCI/CDLinuxGitSeleniumSystem DesignHLD/LLDCode ReviewClaude CodeAI-assisted developmentTurborepoZod

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TypeScriptPythonSQLReactNext.js

About

Full-stack Software Engineer who designed, built, and operates a multi-tenant SaaS end-to-end — secure payment rails, realtime systems, CI/CD-gated deploys. Strong across the MERN stack and modern TypeScript stacks — React/Next.js, Node.js/Express, MongoDB, PostgreSQL — with hands-on system design (HLD/LLD), Agile delivery, and code review.

Experience

Software Engineer - CUBE Technologies - Gurugram, Haryana, India

(2025-09)

Onsite

Owned the Schedules and Tasks modules end-to-end — Tasks integrates with nearly every other module, demanding careful cross-module contract design to ship changes without regressions. Led a versioning overhaul of Schedules: a fault-tolerant version-management system rolled out safely on live data with database migrations and index/query optimization.
Delivered full-stack features across the platform: React UI with state management and design-to-code implementation, plus role-based authorization, API rate limiting, and caching on the backend.
Modernized a large legacy codebase with AI-assisted development (Claude Code), driving down a long-standing defect backlog and raising delivery velocity.

Software Engineer - EmendoAI, Inc. - Castro Valley, CA, U.S.A.

(2025-05 - 2025-09)

Remote

Spearheaded new features for the EmendoAI mobile app in React Native, converting Figma designs into robust, user-friendly interfaces and resolving 100+ critical bugs.
Translated Product Requirement Documents (PRDs) into detailed High-Level and Low-Level Designs (HLDs/LLDs), streamlining the development process.

Software Engineer Intern - InterNetwork Expert LLC - Cary, NC, U.S.A.

(2024-05 - 2025-05)

Remote

Architected an interactive CTF (Capture The Flag) challenge platform by integrating RESTful backend APIs with responsive frontend interfaces, improving platform usability and interaction by 40%.
Designed and implemented 50+ automated test cases using Python and Selenium, boosting test coverage by 50%, and deployed isolated virtual lab environments via Docker and Linux for real-time, hands-on cybersecurity training.