Himanshu Tomar

Software Engineer

New York City, New York, United States5 yrs 5 mos experience

Most Likely To Switch

Key Highlights

Expert in building scalable fintech applications.
Proficient in AWS architecture and Salesforce integrations.
Strong background in full stack development with React and Java.

Stackforce AI infers this person is a Full Stack Engineer specializing in Fintech solutions with expertise in AWS and Salesforce.

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Skills

Core Skills

React.jsAwsSalesforceReactJavaSpring Boot

Other Skills

AG GridAJAXAWS CDKAWS LambdaAWS RDSAmazon CloudWatchAmazon DynamoDBAmazon EC2Amazon Relational Database Service (RDS)Amazon S3Amazon Web Services (AWS)AngularJSAnt DesignBootstrapC#

About

👋 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.

Experience

5 yrs 5 mos

Total Experience

1 yr 9 mos

Average Tenure

2 yrs 5 mos

Current Experience

Gilder gagnon howe & co. llc

Software Engineer

Jan 2024 – Present · 2 yrs 5 mos · New York, New York, United States · On-site

🚀 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.

React.jsAG GridAWS CDKLambdaStep FunctionsSalesforce Apex+3

Paysfer emart

Full-stack Developer

Jun 2023 – Dec 2023 · 6 mos · New York, New York, United States · On-site

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.

ReactTypeScriptAWS LambdaOOPMicroservicesAWS

Hashedin by deloitte

Software Engineer - 1

Feb 2020 – Aug 2022 · 2 yrs 6 mos · 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%.

JavaSpring BootReactSpring SecurityAWS RDS