S

Sharmistha Mandal

Frontend Engineer

Bengaluru, Karnataka, India4 yrs 4 mos experience

Key Highlights

  • Improved onboarding conversion rates from 3% to 12%
  • Reduced monthly PAN rejections by 62%
  • Mentored peers and reviewed over 150 pull requests
Stackforce AI infers this person is a Fintech Frontend Engineer with strong expertise in React and TypeScript.

Contact

Skills

Core Skills

React NativeTypescriptJavascriptNestjs

Other Skills

GraphQLNext.jsMaterial-UIHTML5Data StructuresReact.jsMachine LearningDeep LearningC++C (Programming Language)HTMLPython (Programming Language)Cascading Style Sheets (CSS)Django

About

I’m Sharmistha Mandal, a Frontend Software Engineer with 4.5+ years of experience, currently building intuitive and scalable products at Jupiter Money. I enjoy exploring new technologies to solve real-world problems and create impactful user experiences. My work spans frontend architecture, Backend for frontend(BFF) layer, CI/CD pipelines, and personalized features that drive measurable improvements in both revenue and user engagement. GitHub Profile: https://github.com/Sharmi-1999

Experience

4 yrs 4 mos
Total Experience
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Average Tenure
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Current Experience

Jupiter

2 roles

SDE-2

Oct 2025Present · 8 mos · Bengaluru · On-site

  • In-App address change
  • Developed a config-driven in-app address update flow across Settings, Debit card and Chequebook journeys, reducing failures and support dependency. Enabled seamless add and select address functionality. It improved the card order funnel from 18% to ~30%.
  • Aurora Tier
  • Owned end-to-end delivery of the Aurora CVP, from planning and design to development, showcasing benefits, debit card, and API integrations. Collaborated cross-functionally to ensure seamless execution and high-quality delivery. Generated strong impact with 154 cards sold, contributing good amount in revenue.
  • SA Onboarding Revamp
  • Revamped SA onboarding by enhancing Product Selection, CVP, and Deposit flows with BFF-driven dynamic content and a more intuitive product discovery experience. Focused on high-value users and PRO onboarding, experimenting with deposit thresholds to optimize conversions. Drove significant impact with PRO onboarding increasing from 3% → 12% in M0.
  • Revamped Account Closure Charges
  • Revamped the account closure flow to align with bank guidelines, introducing optional charges, updated disclosures, and clearer pre-closure communication. Enabled flexible low-balance handling with an alternate closure path, reducing user friction while maintaining compliance. Cut support tickets by ~40%, lowering the baseline of ~100 daily requests.
  • Along with regular development work, mentored peers and supported day-to-day tasks to improve engineering standards. Reviewed 150+ PRs across app, BFF, and design system, ensuring clean, efficient, and maintainable code.
React NativeTypeScript

SDE (Frontend)

Aug 2023Sep 2025 · 2 yrs 1 mo · Bengaluru · On-site

  • HomePage Revamp
  • Led the HomePage revamp, building an intuitive vertical card stack navigation with smooth animations and optimized API loading for improved performance and usability.
  • Implemented smart caching and error handling, and contributed to key second-fold widgets to enhance the overall user journey.
  • Backend for Frontend (BFF)
  • Collaborated on building a scalable BFF (Backend for Frontend) layer using NestJS, TypeScript, and GraphQL, simplifying frontend logic by aggregating and shaping data from downstream services. Implemented schema-based type generation and service-specific APIs (Home, Onboarding, CC, Rewards, etc.), reducing frontend computation and improving maintainability. Optimized performance by cutting first-load API calls (21 → 15) and removing redundant APIs, with homepage powered via BFF. Delivered significant gains: Android p90 load time improved by ~38% (2087ms → 1291ms) and iOS by ~9% (201ms → 183ms).
  • CI/CD pipeline for Design System
  • Automated and optimized CI/CD for the Sense Design System (monorepo), enabling seamless releases with GitHub Actions and Semantic Versioning. Introduced RC workflows and streamlined pipelines to improve release quality, reduce redundancy, and lower CI time and costs.
  • E-PAN Onboarding
  • Delivered a stable ePAN onboarding flow by optimizing large file uploads, adding real-time progress, robust error handling, and persistent resume capability. Reduced monthly PAN rejections by ~62% (3.5k → 1.3k), significantly improving completion rates and user experience.
  • MySpace
  • Owned and delivered MySpace, a personalized tab with a modular, scalable architecture, integrating rewards, Money Manager, and real-time user journey insights via BFF-driven data aggregation. Built extensible multi-tab support, CVP modules, and smart search with frequent suggestions, enabling seamless cross-team widget integration and improved user discovery.
React NativeJavaScript

Blitzllama (yc w22)

2 roles

Founding Member & Software Engineer(Frontend)

Jan 2022Aug 2023 · 1 yr 7 mos · Bengaluru, Karnataka, India · Remote

Intern

May 2021Dec 2021 · 7 mos · Bengaluru, Karnataka, India · Remote

National institute of technology rourkela

Research Intern

Apr 2020Oct 2020 · 6 mos · Raurkela, Orissa, India

Education

Jalpaiguri Government Engineering College

Bachelor of Technology - B.Tech — Information Technology

Jan 2018Jan 2022

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