Vaibhav Sahu

Frontend Engineer

Bengaluru, Karnataka, India3 yrs 10 mos experience

Highly Stable

Key Highlights

Led development of high-traffic Chat Widget
Achieved 25% reduction in bundle size
Championed accessibility compliance across products

Stackforce AI infers this person is a SaaS Frontend Engineer with expertise in high-traffic web applications.

Contact

Skills

Core Skills

React.jsPerformance OptimizationScalable Frontend ArchitectureAccessibility

Other Skills

Widget Builder PlatformJSON-Driven ArchitecturePII Redaction & ComplianceKnowledge Base PortalPlatform StabilityJavaScriptTeam LeadershipArchitecture OverhaulTest AutomationStreaming UXTypeScriptjQueryEnd-to-end TestingGitEmbedded JavaScript (EJS)

About

Frontend Engineer specializing in high-traffic, enterprise-grade web experiences — with 4+ years building products used by millions across web and mobile at Yellow.ai. I've led the development of Yellow.ai's flagship Chat Widget — the highest-traffic product in their ecosystem — driving a 15% increase in user engagement through a full UI restructure, and a 25% reduction in bundle size through performance optimization. Beyond shipping features, I care about the fundamentals: clean architecture, measurable performance, accessibility (WCAG AA/AAA), and reducing the technical debt that slows teams down. Currently scaling my impact as SDE-2, building centralized knowledge infrastructure that improves how teams create, access, and maintain content at scale. Core skills: React.js · TypeScript · jQuery · Performance Optimization · Scalable Frontend Architecture · Accessibility · Cross-platform Development

Experience

3 yrs 10 mos

Total Experience

3 yrs 10 mos

Average Tenure

3 yrs 10 mos

Current Experience

Yellow.ai

2 roles

SDE-2

Promoted

May 2025 – Present · 1 yr

Widget Builder Platform: Architected a scalable Widget Builder for the V3 ecosystem, enabling enterprise clients to autonomously design and deploy custom widgets — eliminating manual engineering bottlenecks entirely
JSON-Driven Architecture: Engineered a JSON-driven widget generation system with Monaco Editor integration for dynamic schema validation, allowing new widget types to be onboarded without additional engineering effort
PII Redaction & Compliance: Built a real-time PII redaction feature inside the Inbox module ensuring GDPR compliance across enterprise deployments
Knowledge Base Portal: Developed a unified knowledge base portal that measurably reduced agent information retrieval time, improving overall support efficiency
Platform Stability: Resolved critical UI bottlenecks and cross-browser inconsistencies across the Inbox platform, improving crash-free session rates and application stability

Widget Builder PlatformJSON-Driven ArchitecturePII Redaction & ComplianceKnowledge Base PortalPlatform StabilityReact.js+1

SDE-1

Jun 2022 – Apr 2025 · 2 yrs 10 mos

Team Leadership: Led a 3-engineer frontend team to design and build Help Center Copilot from scratch using React and TypeScript, integrating conversational AI capabilities that significantly increased self-service resolution rates
Performance Optimization: Reduced application bundle size by 25% via advanced code-splitting and lazy loading, directly improving Core Web Vitals scores and initial load performance
Architecture Overhaul: Refactored a legacy jQuery monolithic chat widget into a modular, component-based architecture — reducing production error rates by 30% and boosting user engagement by 15%
Test Automation: Built comprehensive end-to-end test suites using Playwright, cutting post-deployment regressions and reducing production bugs by 20%
Streaming UX: Pioneered real-time message streaming for critical UI components, reducing perceived latency and delivering a significantly smoother conversational experience
Accessibility: Championed WCAG 2.1 compliance across the web widget, ensuring the product passed enterprise-level compliance audits

Team LeadershipPerformance OptimizationArchitecture OverhaulTest AutomationStreaming UXAccessibility+1