# Himanshu Tomar > Software Engineer Location: New York City Metropolitan Area, United States Profile: https://flows.cv/himanshutomar 👋 I’m a full stack engineer with 5+ years of experience building scalable, secure, and data-driven applications using React, AWS, and Salesforce. At GGHC, I work with React.js, AG Grid, AWS CDK, Lambda, Step Functions, and Salesforce Apex/LWC to modernize platforms, automate workflows, and improve system reliability. ⚡ What I’m good at: • Building high-performance UIs • Architecting AWS solutions • Python & Node.js backends • C# AWS CDK • Deep Salesforce development & API integrations 🚀 I enjoy solving complex problems, improving systems, and learning new tech. Always open to connecting with people building impactful products. ## Work Experience ### Software Engineer @ Gilder Gagnon Howe & Co. LLC Jan 2024 – Present | New York, New York, United States 🚀 Building and scaling internal fintech systems that power one of NYC’s leading investment firms. I work across frontend, backend, and cloud—delivering secure, data-driven, and high-performance applications. Key Highlights: •Led the modernization of GGHC’s web platform using React (TypeScript), Ant Design, and AG Grid, improving performance and user experience across 100+ data-intensive views. •Designed and deployed AWS-based ETL pipelines using Lambda, Step Functions, EventBridge, and S3, automating financial data sync between Salesforce, Box, and NFS systems. •Built Salesforce Lightning Web Components (LWC) and Apex integrations for critical workflows—file uploads, client dashboards, DocuSign/Box integrations, and compliance data pipelines. •Engineered robust APIs and services integrating with Twilio Verify, World-Check One, and DocuSign CLM, ensuring seamless and secure data exchange. •Implemented end-to-end testing frameworks using Jest and React Testing Library, increasing frontend reliability and maintainability. •Automated deployment & monitoring via AWS CDK (Python/C#) and Amplify, supporting multi-environment (Dev/QA/Prod) rollouts. •Collaborated with cross-functional teams on system architecture, event-driven workflows, and real-time WebSocket updates for trading and compliance tools. ### Full-stack Developer @ Paysfer eMart Jan 2023 – Jan 2023 | New York, New York, United States • Developed and optimized 15+ React components with TypeScript, improving user engagement by 20% and decreasing page load times by 30%, which contributed to a 15% increase in monthly active users within 2 months. • Designed and deployed 8 AWS Lambda functions for serverless data processing and automated transaction notifications, reducing latency by 40% and processing transactions with 99.9% uptime. • Architected a scalable microservices solution on AWS EC2, improving system scalability to handle 50% more traffic, reducing deployment times by 30%, and improving system reliability by 25%. • Refactored and modularized 10K+ lines of frontend code using OOPs principles, cutting debugging time by 25% and decreasing code review turnaround time by 20%, contributing to faster sprint cycles. ### Software Engineer - 1 @ HashedIn by Deloitte Jan 2020 – Jan 2022 | Bengaluru, Karnataka, India • Developed 10+ microservices using Java and Spring Boot, integrated with React UI, leveraging Spring Cloud for discovery/load balancing, reducing downtime by 20%. • Integrated Spring Security with both backend APIs and Angular components, enabling role-based authentication and cutting unauthorized access by 30%. • Implemented AWS RDS for relational database management, optimizing data storage and retrieval speeds, improving system query response time by 25%. • Built REST APIs with Swagger, collaborated with frontend teams for seamless integration, reducing API debugging time by 15%. ## Education ### Master's degree in Computer Science New Jersey Institute of Technology ### Bachelor's degree in Computer Science Jaypee Institute Of Information Technology ## Contact & Social - LinkedIn: https://linkedin.com/in/tomar3098 --- Source: https://flows.cv/himanshutomar JSON Resume: https://flows.cv/himanshutomar/resume.json Last updated: 2026-03-29