My Portfolio

Harsh Panchal

Full-Stack Developer • Next.js • TypeScript • MongoDB

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Summary

Full-stack developer specializing in Next.js, TypeScript, and MongoDB.

Skills

  • React.js
    Advanced
  • Next.js
    Advanced
  • Node.js
    Advanced
  • MongoDB
    Intermediate
  • Power BI
    Intermediate
  • Excel Automation
    Advanced
  • Java
    Advanced
  • AWS
    Intermediate
  • Prisma ORM
    Intermediate
  • Data Visualization
    Advanced

Experience

Java Developer • Aditech Infotech Pvt Ltd

Feb 2020– Dec 2021

  • Participated in all phases of the Software Development Life Cycle (SDLC) including requirement analysis, design, development, testing, and deployment.
  • Worked with Hibernate ORM for database interaction and integrated it with Oracle/MySQL systems.
  • Developed dynamic and reusable UI components using JSP, custom tags, action classes, and Spring MVC architecture.
  • Built web applications with Spring MVC, implementing controllers, service layers, and DAO components.
  • Designed and documented UML diagrams including use-case, class, sequence, and object diagrams for system modeling.
  • Wrote optimized SQL queries, stored procedures, and triggers to extract and manipulate data for reporting and analytics.
  • Created interactive user interfaces for viewing, editing, sharing, and deleting reports using JSP, HTML, and JavaScript.
  • Used XML for UI customization and tool configuration.
  • Implemented JDBC-based connectivity and managed configuration through Subversion (SVN) for version control.
  • Developed multiple web and desktop applications using core Java, focusing on performance and modular design.

Full Stack Developer • Bank Of America

May 2022 – April 2024

  • Analyzed large financial datasets to identify trends, irregularities, and optimization opportunities, improving reporting accuracy and decision-making.
  • Collaborated with cross-functional teams to automate manual workflows using SQL, Excel, and internal banking tools, reducing processing time by up to 40%.
  • Ensured high-quality data validation and risk-control checks to maintain compliance with Bank of America security and auditing standards.
  • Monitored daily operations and resolved data discrepancies, ensuring timely completion of financial processes and regulatory submissions.
  • Developed dashboards and performance reports that improved visibility into key business metrics for senior leadership.
  • Supported system enhancements, UAT testing, and documentation for analytics tools used across the department.
  • Delivered exceptional customer service by resolving complex banking queries with accuracy, professionalism, and empathy.
  • Improved customer satisfaction scores by ensuring timely resolution of issues related to accounts, payments, and fraud investigations.
  • Processed high-volume financial transactions with near-zero error rate while maintaining strict compliance with internal policies and federal regulations.
  • Coordinated with internal teams to solve escalated cases and ensure seamless end-to-end customer experience.
  • Identified patterns in customer concerns and recommended process improvements that reduced repeat inquiries.
  • Supported risk assessment activities by analyzing transactional data for fraud, AML red flags, and regulatory issues.
  • Ensured documentation accuracy and adherence to Bank of America's compliance frameworks, reducing audit findings.
  • Conducted periodic reviews of account activity to investigate unusual patterns and escalate potential risks.

Full Stack Developer • Mango Analytics, LLC

May 2024 – Present

  • Built scalable backend analytics services using NestJS, Prisma, Redis, and PostgreSQL, enabling fast and accurate reporting for merchant dashboards.
  • Designed modular, reusable APIs to support business insights such as sales trends, top-selling items, customer behavior analysis, and KPI tracking.
  • Optimized database schemas, query logic, and caching layers, reducing response times and improving system performance.
  • Implemented secure authentication and authorization flows using JWT, guards, interceptors, and role-based access control.
  • Collaborated with product and analytics teams to define requirements and deliver high-quality backend features aligned with business goals.
  • Conducted unit testing, debugging, and refactoring to maintain high code quality and scalable architecture.
  • Developed end-to-end backend modules for Food Haven, a full analytics and merchant management platform built on NestJS + Prisma.
  • Built APIs for merchant onboarding, admin management, authentication flows, role-based permissions, product & category management.
  • Implemented advanced analytics endpoints powering dashboards for sales trends, order insights, customer behavior, and operational KPIs.
  • Integrated Redis caching and optimized query pipelines to handle high-volume data efficiently.
  • Ensured clean architecture with feature-based modularization, reusable services, and standard response structures across the app.
  • Improved backend reliability with structured error handling, logging, and production-ready configurations.

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