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Open to remote, hybrid or on-site roles

Vigneshwaran Balasubramanian

Roles: Full-Stack Engineer, Frontend · React & Next.js, Backend · Django, Node.js & PostgreSQL, Data migrations · Salesforce → Django, Mobile · Offline-first React Native

I build healthcare and care-sector platforms with React, Next.js, Django, Node.js and PostgreSQL. Today I support a live platform used by 50+ organizations, owning features from requirements to production deployment. Before that, I shipped 4+ offline-first React Native apps for 2,000+ field technicians.

3+
Years of experience
50+
Organizations on the platform I support
150+
Production issues resolved
approximately 14,000 records migrated to production with zero data loss
Records migrated, zero data loss

About Me

I'm a Full-Stack Engineer with 3+ years of experience. Today I build healthcare and care-sector platforms with React, Next.js, Django, Node.js and PostgreSQL, owning features from requirements to production deployment.

At Intergy Consulting (Australia, remote) I maintain and extend a live support-worker allocation platform used by 50+ organizations, 300+ clinicians and 2,000+ users. I took ownership of the inherited codebase after a one-month handover, have independently resolved 150+ production issues, and work directly with Australian stakeholders every day.

I removed the platform's dependency on Salesforce by rebuilding its core service-validation logic in Django and PostgreSQL, and led the scripted migration of ~14,000 production records through a dry-run comparison script and 5+ validation stages, with zero data loss.

Before that, at Nanosoft Engineers, I shipped 4+ offline-first React Native apps for 2,000+ field technicians and raised sync success in low-connectivity areas from ~30% to ~80%. My Master of Social Work (Medical & Psychiatry) gives me real understanding of the clinicians and clients who use healthcare software, and I've mentored 2 junior developers through regular code reviews.

Key achievements

  • Resolved 150+ production issues on an inherited live platform
  • Migrated ~14,000 production records off Salesforce with zero data loss
  • Cut a long-loading service-creation workflow to seconds by optimizing PostgreSQL queries and API logic
  • Raised offline sync success in low-connectivity areas from ~30% to ~80%
  • Led 15+ Android and iOS store releases; cut image payloads 60% and UI latency 30%

Quick facts

Based in
Coimbatore, Tamil Nadu, India
Time zones
Experienced across India–Australia
Open to
Remote · Hybrid · On-site
Studying
MCA (Online), Bharathiar University · 2024–2027

Experience

Full-Stack Developer

Intergy Consulting
Current
Aug 2025 – Present1 yr 3 mos Australia (Remote)

Remote full-stack role on care-sector platforms, working directly with Australian stakeholders every day.

  • Maintain and extend a live care-sector support-worker allocation platform serving 50+ organizations, 300+ clinicians, and 2,000+ users, matching support workers to clients by skill, location, and availability.
  • Took ownership of an inherited production codebase after a one-month handover; independently resolved 150+ production issues and ship hotfixes directly to the client, from code change to deployment.
  • Removed the platform's dependency on Salesforce by rebuilding the core service-validation logic from scratch and moving live operations onto the in-house Django and PostgreSQL system.
  • Led scripted data migrations of ~8,000 records to staging and ~14,000 to production, using a custom dry-run comparison script and 5+ validation stages to block duplicates, with zero data loss.
  • Optimized PostgreSQL queries and API logic in the service-creation workflow, reducing a long-loading process to completion within seconds.
  • Fixed a cross-timezone scheduling defect so appointments display in each service's own time zone rather than the viewer's device time.
  • Work directly with Australian stakeholders every day on requirements gathering and live support, and partner with the client's Salesforce developer to plan and execute the migration.
  • Therapy-scheduling platform (React, Node.js): resolved production bugs and built a feature that lets clients move into another therapy session even after their own session has started.
  • Online exam portal: set up the initial code architecture and built the frontend over the first 6+ months, from project start through mid-phase, including automated grading and real-time results.
ReactNext.jsPythonDjangoNode.jsPostgreSQLStrapiSalesforceAzureGitHub Actions

React Native Developer

Nanosoft Engineers Pvt Ltd
May 2023 – Aug 20252 yrs 4 mos Coimbatore, India

Shipped 4+ offline-first React Native apps for 2,000+ field technicians.

  • Delivered 4+ production mobile apps used by 2,000+ field technicians, with Redux Toolkit managing state across the app suite.
  • Designed an offline-first sync architecture (SQLite, AsyncStorage, custom retry queues with exponential backoff), raising sync success in low-connectivity areas from ~30% to ~80%.
  • Refactored legacy components and automated media compression, cutting UI latency by 30% and image payloads by 60%.
  • Led 15+ Android and iOS releases through App Store and Play Store review cycles, including encrypted local storage and compliance checks.
  • Also built a customer visit-management app (photo capture, signature pad, real-time sync) and a GPS-aware attendance app with QR check-in and offline logging.
React NativeTypeScriptRedux ToolkitSQLiteAsyncStorageFirebase

Case Studies

Three pieces of work, written up as challenge, approach and outcome. Each one sticks to what I actually did.

approximately 14,000 production records migrated

Production records migrated

Moving a live care platform off Salesforce with zero data loss

Rebuilt the core service-validation logic in Django and PostgreSQL, then led scripted migrations of ~8,000 staging and ~14,000 production records through a dry-run comparison and 5+ validation stages.

  • Django
  • PostgreSQL
  • Salesforce

Read case study

150+

Production issues resolved

Taking over a live platform after a one-month handover

Independently resolved 150+ production issues, cut a long-loading service-creation flow to seconds, and fixed a cross-timezone scheduling bug, working daily with Australian stakeholders.

  • Django
  • PostgreSQL
  • Python

Read case study

sync success in low-connectivity areas rose from about 30% to about 80%

Sync success in low-connectivity areas

Offline-first sync for field technicians on poor networks

Designed a SQLite + AsyncStorage sync layer with custom retry queues and exponential backoff, lifting sync success in low-connectivity areas from ~30% to ~80%.

  • React Native
  • TypeScript
  • Redux Toolkit
  • SQLite
  • AsyncStorage

Read case study

Tech Stack

The stack I work in day to day, grouped as on my résumé. Highlighted items are the core of it.

Languages

  • JavaScript · ES6+
  • TypeScript
  • Python
  • SQL

Frontend

  • React
  • Next.js
  • Redux Toolkit
  • Context API
  • Tailwind CSS
  • Bootstrap
  • HTML5
  • CSS3

Backend

  • Django
  • Django ORM
  • Node.js
  • RESTful API design
  • Strapi · headless CMS
  • Firebase

Databases

  • PostgreSQL · schema design, query optimization, migrations
  • MySQL
  • SQLite

Testing & QA

  • Pytest
  • Playwright for Python · end-to-end browser automation
  • Regression and smoke testing

Cloud & CI/CD

  • Microsoft Azure
  • Vercel
  • GitHub Actions

Mobile

  • React Native · CLI
  • AsyncStorage
  • Android Studio
  • Xcode
  • App Store & Play Store releases

Integrations

  • Salesforce · data migration & integration
  • Google Sheets API

Tools & Practices

  • Git
  • GitHub
  • Postman
  • pgAdmin
  • Code review
  • Data migration & validation
  • Production support

Healthcare software, informed by social work

My Master of Social Work (Medical & Psychiatry) gives me real understanding of the clinicians and clients who use healthcare software. I bring that to the care-sector platforms I build and support, and to daily requirements conversations with Australian stakeholders.

Featured Projects

Web Platforms

Support-Worker Allocation Platform

Live care-sector platform used by 50+ organizations, 300+ clinicians and 2,000+ users, matching support workers to clients by skill, location and availability. I maintain and extend it, and moved its live operations off Salesforce onto the in-house Django and PostgreSQL system.

ReactDjangoPostgreSQLSalesforce
  • 50+ organizations · 300+ clinicians · 2,000+ users
  • Moved off Salesforce with zero data loss
  • 150+ production issues resolved
Private project · code not public
Web Platforms

Therapy-Scheduling Platform

Production support and feature work on a therapy-scheduling platform: resolved production bugs and built a feature that lets clients move into another therapy session even after their own session has started.

ReactNode.js
  • Production bug fixes
  • Switch sessions after one has started
Private project · code not public
Web Platforms

Online Exam Portal

Set up the initial code architecture and built the frontend over the first 6+ months, from project start through mid-phase, including automated grading and real-time results.

ReactNext.js
  • Initial code architecture
  • Frontend from project start to mid-phase
  • Automated grading & real-time results
Private project · code not public
Mobile Apps

Facility Management App

React Native app for field technicians, part of Nanosoft's 4+ app suite used by 2,000+ technicians, built on the suite's offline-first sync with encrypted local storage.

React NativeTypeScriptRedux ToolkitSQLiteAsyncStorage
  • Offline-first sync (SQLite + AsyncStorage)
  • Encrypted local storage
  • Android & iOS releases
Private project · code not public
Mobile Apps

Customer Visit-Management App

React Native app for managing customer visits, with photo capture, a signature pad and real-time sync.

React NativeRedux Toolkit
  • Photo capture
  • Signature pad
  • Real-time sync
Private project · code not public
Mobile Apps

GPS Attendance App

GPS-aware React Native attendance app with QR check-in and offline logging.

React NativeGeolocation
  • GPS-aware check-in
  • QR check-in
  • Offline attendance logging
Private project · code not public
Mobile Apps

Hybrid WebView App

Packaged existing web applications as Android and iOS apps using react-native-webview.

React Nativereact-native-webview
  • react-native-webview wrapper
  • Reuses existing web apps
  • Android & iOS
Private project · code not public
Personal Projects

Vaasi

Online bookstore where users can buy a single book or a curated collection.

Next.jsDjango
  • Buy a single book or a curated collection
  • Next.js frontend, Django backend
Personal Projects

Akam Psychiatric Care Center

Dynamic site where the admin updates projects, staff details and content through Google Sheets, with no code changes.

Next.jsGoogle Sheets API
  • Content managed in Google Sheets
  • Updates without code changes
Personal Projects

Computer Park

Business website for a corporate-gifting and printing company, built to expand its customer reach and structured to grow into e-commerce.

Next.js
  • Corporate gifting & printing business site
  • Structured to grow into e-commerce

Education & Certifications

Master of Computer Applications (MCA)

Online

Bharathiar University, Coimbatore

2024 – 2027

MERN Stack Developer Certification

N School Academy

2022 – 2023

MongoDB, Express.js, React, Node.js

Master of Social Work (Medical & Psychiatry)

Bharathiar University, Coimbatore

2019 – 2021

BSc Physics

Jamal Mohamed College of Arts and Science, Trichy

2016 – 2019

Get In Touch

Hiring for a full-stack role? I'm open to remote, hybrid or on-site work and experienced across India–Australia time zones. Let's talk.

Phone
+91 9487941025
Email
bv2124.dev@gmail.com
LinkedIn
linkedin.com/in/vignesh-waran-18599a2b2
GitHub
github.com/Bv2124

Why work with me

Production Ownership: Took over an inherited live codebase after a one-month handover; 150+ production issues resolved and hotfixes shipped from code change to deployment.

Migration Discipline: Dry-run comparison and 5+ validation stages to block duplicates: ~14,000 production records moved off Salesforce with zero data loss.

Healthcare Insight: Master of Social Work (Medical & Psychiatry): real understanding of the clinicians and clients who use healthcare software.

Stakeholder-Facing: Daily requirements gathering and live support with Australian stakeholders, across India–Australia time zones.

Full-Stack Range: React and Next.js, Django and Node.js, PostgreSQL, plus 4+ offline-first React Native apps released through the App Store and Play Store.

Mentor: Mentored 2 junior developers, including regular code reviews of their work.