Sayam Gandhak

Software Engineer

Bengaluru, Karnataka, India3 yrs 11 mos experience

Most Likely To SwitchAI Enabled

Key Highlights

Designed a multipart resumable upload system from scratch.
Architected a scalable Role-Based Access Control framework.
Engineered an event-driven IAS Badge recognition system.

Stackforce AI infers this person is a Full Stack Engineer specializing in SaaS applications with expertise in JavaScript and React.

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Skills

Core Skills

JavascriptReactNode.jsExpressPostman

Other Skills

Express.jsRESTful APIsRBACKafkaTailwindCSSMaterial-UIReduxMongoDBGitBookKotlin CoroutinesKotlinV0Artificial Intelligence (AI)GitHub CopilotTypeScript

About

Resume : https://drive.google.com/file/d/1WlNsY7rIEW22KkZQDopQ4iJN9_2fZboa/view?usp=drivesdk PhonePe – Indus Vertical Full Stack Engineer with strong backend depth, building scalable, reliable, and high-performance web platforms serving production-scale traffic. Experienced in architecting end-to-end systems across frontend and backend layers, with deep expertise in the JavaScript ecosystem and strong understanding of web architecture, distributed systems, and performance optimization. Frontend: React, Next.js, Astro, TailwindCSS, Redux, SSR, Performance Optimization Backend: Node.js, Express.js, RESTful APIs, API Design, Authentication & Authorization Architecture: RBAC, Event-Driven Systems (Kafka), Multipart/Resumable Uploads, Proxy Integrations System Design: Scalable services, Data modeling, Access control, Reliability engineering Production Ownership: Monitoring, Debugging, Incident resolution, Cross-functional delivery

Experience

3 yrs 11 mos

Total Experience

1 yr 11 mos

Average Tenure

2 yrs 10 mos

Current Experience

Phonepe

Software Engineer

Aug 2023 – Present · 2 yrs 10 mos · Bengaluru, Karnataka, India

Designed and built a distributed multipart resumable upload system from scratch for the Developer Platform.
Implemented chunked upload orchestration, resumability, retry mechanisms, and integrity validation.
Extended infrastructure to support large OBB (main + patch) files for high-scale publishers.
Collaborated with Infra, QA, and Product to ensure production-grade reliability.
Achieved 0 upload failures post-launch and significantly improved publishing reliability.
Architected a scalable Role-Based Access Control (RBAC) framework for the Developer Dashboard.
Designed backend role-permission models and authorization middleware.
Enforced API-level security (not just UI gating).
Built invite flows enabling Admin / Editor / Viewer collaboration.
Implemented permission-aware UI rendering tied to backend enforcement.
Engineered IAS Badge recognition system using event-driven architecture (Kafka).
Consumed and processed real-time events to award badges.
Built idempotent backend logic ensuring data consistency.
Designed and executed a backfill pipeline covering ~500K apps.
Enabled real-time UI updates reflecting achievements.
Owned the end-to-end redesign of WebAppStore aligned to mobile-first principles.
Re-architected frontend using Astro + TailwindCSS.
Optimized API contracts and reduced payload overhead.
Improved performance, responsiveness, and cross-platform consistency.
Contributed to UX, layout systems, and branding improvements.
Played critical role in launching Developer Dashboard & Consumer App.
Ensured API stability and backend readiness.
Led day-zero monitoring and hotfixes under tight timelines.
Coordinated across frontend, backend, infra, QA.

JavaScriptReactNode.jsExpress.jsRESTful APIsRBAC+2

Truscholar

2 roles

Full Stack Developer

Jul 2022 – Aug 2023 · 1 yr 1 mo

Resume Templates (TruResume): Designed resume templates in AdobeXD and converted them into pixel-perfect React + Material UI components. Integrated with Redux so user data populated dynamically into templates. Ensured templates were responsive, accessible, and production-ready, enhancing overall UX.
Filter Feature (TruScholar): Implemented a dynamic filter system for the analytics dashboard from scratch. Used React, Material UI, Express, MongoDB to allow users to run filters across datasets and view results in interactive charts (pie/bar). Improved dashboard usability and insights, leading to better decision-making.
Resume Sharing Feature (TruResume): Built a document sharing workflow where users could send resumes as PDFs via email. Designed the UI with React, Material UI, and integrated Axios + Redux for smooth API communication. Enabled body customization and recipient input, streamlining document distribution.
API Documentation & Testing (TruScholar): Authored comprehensive API documentation in GitBook, tested endpoints with Postman, and added validation logic to ensure error-free integration for external clients. Improved developer adoption and reduced support overhead.
Custom Footer for White-Label Emails (TruScholar): Delivered a custom footer feature in the email whitelabeling module. Built a React UI where users could upload logos and personalized content, ensuring consistent branding across communications. Enhanced customer satisfaction by giving clients branding flexibility.
Text Expander & Summary Generator (TruResume): Integrated text expander and AI-powered summary generation tools into the resume builder, improving content creation flow and resulting in smoother end-user experience.

ReactMaterial-UIReduxExpressMongoDBGitBook+1

Full Stack Intern

Nov 2021 – Jun 2022 · 7 mos

I gained industry exposure. Wrote code in React and Node.js. Fixed various bugs which made working of platform more smooth . Applied validations almost everywhere possible improved the platform's efficiency.
A 'Bulk Feature' that allows users to perform actions in bulk rather than individually has been fixed, saving them time. Aided in the integration of a third-party WhatsApp chatbot. I received two appraisals during my six months as an intern.
Working Hours for Internship : 40-45 hours / week

ReactNode.jsJavaScript