Ayan Bhattacharya

Frontend Engineer

India6 yrs 2 mos experience

Key Highlights

Developed a passwordless Biometric Passkey Authentication System.
Engineered a real-time trading system supporting 100,000+ users.
Led a team to deliver an AWS-deployed application.

Stackforce AI infers this person is a Senior Frontend Engineer specializing in Fintech and B2B SaaS with a focus on scalable web applications.

Contact

Skills

Core Skills

React.jsSystem Architecture

Other Skills

GraphQLAngularJSNext.jsGitSASSTeam ManagementTypeScriptFinanceRecoilWeb Content Accessibility Guidelines (WCAG)GCPWebSocketsFirebaseWeb ApplicationsREST APIs

About

🚀 I'm a Senior Frontend Engineer with over 6 years of experience crafting fast, scalable, and user-centric web applications—primarily in high-growth startups across fintech and B2B SaaS. 💡 I'm passionate about solving real-world problems through intuitive UX, performance-optimized interfaces, and scalable architecture. I thrive in remote-first, product-led teams and love taking ownership—from 0→1 MVPs to iterative scaling. 📈 Tech Stack: React, TypeScript, Next.js, Tailwind, WebSockets, Firebase, Node.js, GCP, GraphQL, Redux, Jest 🌍 Open to global remote roles – especially with mission-driven startups & teams who value craft, impact, and speed. Check out my work 👉 ayanbhattacharya.in

Experience

6 yrs 2 mos

Total Experience

1 yr 5 mos

Average Tenure

5 mos

Current Experience

Deel

Frontend Engineer

Dec 2025 – Present · 5 mos · California, United States · Remote

Career break

Professional development

Apr 2025 – Nov 2025 · 7 mos

Compliance innovation

Senior Frontend Engineer

May 2023 – Mar 2025 · 1 yr 10 mos · United States · Remote

Its two products focus on the financial space: Simplici (a one-step KYC and KYB solution for businesses to onboard new customers) and Liquidity (a trading platform for Private Equities, SBA7 Loans, and Music Assets).
1. Developed a passwordless Biometric Passkey Authentication System, reducing user login time by 95%.
2. Designed and implemented a robust admin panel for revenue tracking, user session monitoring, and feedback management, accelerating issue resolution by 10x.
3. Built an asynchronous file management tool for GCP, reducing upload time by 30% and improving efficiency by 25%.
4. Engineered a real-time trading system using web sockets, supporting 100,000+ monthly users.
5. Integrated Firebase push notifications with service workers, increasing user retention by 40%.

GraphQLSystem ArchitectureReact.jsAngularJSNext.jsGit+6

Realization technologies, inc.

Senior Frontend Engineer

Jul 2022 – Dec 2022 · 5 mos · California, United States · Remote

A B2B project flow management startup that enables companies to complete large civil projects on time, boosting cash flow and increasing overall profits by $7 billion.
1. Designed and built a high-level task planning tool, driving a 25% revenue increase.
2. Modularized existing UI components which helped increase the productivity of engineers by 15%.
3. Participated in each step of the product creation phase from ideation, and design to development improvement for features reaching over 2,00,000 users.

System ArchitectureReact.jsGitTypeScript

Freelancer

Frontend Developer

Mar 2021 – Jul 2022 · 1 yr 4 mos · Remote

Developed and optimized platforms for two micro-startups focussed on healthcare, enhancing user experience, and driving 10x revenue growth.
Integrated Stripe for secure credit card transactions, driving significant revenue growth of several thousand dollars for clients.
Designed and optimized the UI to enhance user experience, increasing the website conversion rate by 28%.

React.jsWeb ApplicationsREST APIsFront-End Development

Jobeneur

Co-Founder (Frontend Engineer)

Mar 2018 – Feb 2021 · 2 yrs 11 mos · Noida Area, India

A consumer-focused global platform enabling white-collar professionals to connect through shared interests, reaching over 30,000 monthly page views at its peak.
Led a team of five engineers to deliver an AWS-deployed application, reaching 15,000+ active users.
Integrated social login for a seamless user onboarding experience, cutting processing time by 70%.
Built a real-time threaded discussion feature using WebSockets for professional communities, boosting user growth by 140% MoM.

React.jsWeb ApplicationsREST APIsFront-End Development

Pmt softech private limited

Software Intern

Jan 2017 – Apr 2017 · 3 mos · New Delhi, Delhi, India

Worked on a task management tool for individuals, teams, and organizations to create and manage tasks effectively.
Improved the response time of the web API by 20% by using ServiceStack.Text JSON serializer