Hariharan G. | Full-Stack, Web & Mobile Developer

Core Capabilities

Meticulously engineered tech stack optimized for hyper-scalability and low footprint.

📱

Frontend & Mobile

Highly responsive frontend modules, clean layout structures, and cross-platform mobile apps.

Flutter
React
Next.js
HTML5 / CSS3
JavaScript
TypeScript

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Backend & Databases

Scalable REST & GraphQL APIs, structured database schemas, role-based security, and cloud data operations.

Node.js / Express
Django
PostgreSQL
MySQL
MongoDB
Prisma ORM

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Automation & DevOps

Automated scripts, terminal-less tasks, server management, CI/CD pipelines, and cloud environments.

Python
Selenium
Linux / Windows
Jenkins
Shell Scripting
AWS / Azure

Professional Timeline

A journey of engineering robust software, managing production systems, and deploying enterprise-grade solutions.

Software Developer (Full-time)

EchoMatrix Solutions

Sep 2025 – Present

Lead development of cross-platform Flutter mobile applications and high-fidelity React/Next.js web apps.
Build and maintain robust modular backends using Express.js and Django with high-performance APIs.
Manage end-to-end cloud deployments, integrate REST & GraphQL APIs, and optimize server-client communication.
Design and optimize PostgreSQL, MySQL, and MongoDB database schemas for large-scale operations.
Collaborate directly with enterprise clients to deliver bespoke software aligned with strategic business needs.

React Next.js Flutter Express.js Django PostgreSQL MongoDB

Freelance Software Developer

EchoMatrix Solutions

Apr 2025 – Sep 2025

Contributed to critical web and mobile application components for various client-facing deployments.
Assisted in crafting responsive frontend user interfaces and integrating robust backend REST endpoints.
Collaborated closely with core development teams to translate client requirements into functional modules.
Focused heavily on performance tuning, visual consistency, and responsive layouts across platforms.

React Express.js MySQL JavaScript Vanilla CSS

Product Support Engineer

VSoft Technologies Pvt. Ltd.

Oct 2024 – Sep 2025

Managed and monitored mission-critical production servers hosting digital banking applications, maintaining 99.9% uptime.
Orchestrated daily and custom SQL operations on production databases to secure data integrity and transaction accuracy.
Coordinated directly with core dev teams to push patches, resolve live application failures, and maintain system stability.
Supported VSoft's high-traffic digital banking suite including mobile banking, fund transfers, and compliance analytics.

Windows Servers SQL Server PostgreSQL Core Banking Systems

Software Developer

Tif Labs

Mar 2024 – May 2024

Designed and deployed secure Express.js routes and endpoints to streamline complex workflows.
Developed robust Selenium-based browser automation scripts for large-scale operational tasks and testing.
Partnered with senior engineers to refactor backend runtimes, improving overall API responsiveness.
Upgraded log-tracking and error-handling architectures to establish highly reliable production services.

Node.js Express.js JavaScript Selenium

Bachelor of Engineering (BE)

Computer Science and Engineering

Graduated 2024

Completed coursework at T. John Institute of Engineering, Bengaluru, India.
Focused on Advanced Algorithms, Database Systems, Software Architectures, and Web Technologies.
Active participant in coding hackathons, technical symposia, and mobile application workshops.

Intermediate Education (PCMC)

Mathematics, Physics, Chemistry & Computer Science

Completed 2020

Studied at Swamy Vivekananda Vidyalaya Higher Secondary School, Kadayampatti, Salem, India.
Built foundation in logical deduction, mathematical proofs, and basic computational logic.

Secondary School Leaving Certificate (SSLC)

General Schooling

Completed 2018

Completed schooling at Swamy Vivekananda Vidyalaya Matriculation School, Kadayampatti, Salem, India.
Excellent performance in mathematics and science fairs.

Flagship Deployments

Real-world production platforms built for speed, safety, and reliability.

Web / Enterprise

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Project Management System

Enterprise project management platform enabling organizations to manage projects, track tasks & subtasks, generate Minutes of Meeting (MOM), and monitor payments & invoices. Supports secure role-based access control, real-time analytics, and automated holiday planners.

React Next.js Flutter Express.js Django MongoDB

EchoMatrix Corporate IP Production Stable

Mobile / IoT

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ByPass Visitor Management

Modern access control system automating visitor check-in/out via secure QR code scanning and real-time photo capture. Built as a dual solution featuring a Flutter app for visitor registration and a React dashboard for multi-organization configuration with integrated PayU billing.

Flutter React Node.js Prisma ORM MySQL PayU

EchoMatrix Corporate IP Active Deployment

FinTech / Core

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OnView CTS & eDesk Capture

Cheque Truncation System (CTS) and distributed branch capture solution ensuring grid-based clearing compliance. Features remote cheque image capture, advanced fraud verification, exception handling, and full Core Banking System (CBS) synchronization.

SQL Server Linux Jenkins Shell Scripting PostgreSQL

VSoft Technologies IP Enterprise Active

Automation / Bot

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LinkedIn Job Automation Bot

High-reliability bot executing automated candidate login, keyword searching, and application pipelines on LinkedIn. Configured with an integrated Excel tracker (OpenPyXL) mapping targets, error boundaries, and dynamic element waits for smooth execution.

Python Selenium OpenPyXL Excel Integration

View on GitHub Utility Tool

Crafting High-Performance Web & Mobile Ecosystems

Flutter Specialist

Next.js & React