SC

Building Digital
Ecosystems

I bridge the gap between sensor hardware, scalable backends, and intuitive mobile interfaces.

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Portfolio

Selected Production Work

Fleet Management

VM Track

Vehicle & Machinery Tracking (2025-26)

End-to-end fleet management system for real-time GPS tracking of construction vehicles. Built independent Flutter app and Spring Boot APIs.

FlutterSpring BootPostgreSQLGoogle Maps APIFirebase
Industrial IoT

SCADA India

Industrial Monitoring App (2023-25)

Real-time work order management and industrial data analysis. Features offline mode, multi-language support, and JasperReports integration.

FlutterSpring BootPostgreSQLJasperReports
Fintech / ERP

E-LAB

Material Testing & Invoicing (2024-25)

Operations management for labs with role-based access (Engineer, Contractor) and HDFC payment gateway integration.

FlutterSpring BootHDFC GatewayPostgreSQL
Backend Systems

Real-Time Data Services

Unipro & GTAMB Services (2025)

High-concurrency backend services using Redis Pub/Sub, WebSockets, and SSE to broadcast live industrial data to dashboards.

Spring BootRedis Pub/SubWebSocketsSSE
Hardware / IoT

Plant SCADA IoT

Sensor Data Processing (2024)

Linux-based Raspberry Pi application to process RTD, IR, and GPS sensor data and transmit to central API.

PythonKivyRaspberry PiLinux

Technical Arsenal

A robust stack spanning mobile, web, and IoT. I specialize in building end-to-end ecosystems—from the sensor hardware to the cloud backend and the mobile client in your hand.

High-Performance Redis Caching
Secure Payment Gateway Integration

Mobile Development

FlutterDartAndroid (Java/Kotlin)iOS (Swift)BlocProviderGetX

Backend Engineering

Spring BootREST APIsJavaWebSocketsServer-Sent Events (SSE)JWT Auth

Database & Cloud

PostgreSQLMySQLRedis CachingMongoDBSQLiteFirebaseGCP

IoT & Hardware

Raspberry PiPythonLinux/RaspbianSensor Integration (RTD, IR, GPS)Kivy

Frontend & Tools

React.jsJavaScript/TypeScriptHTML5/CSS3DockerGitPostmanJasperReports

Specialized Integrations

Payment Gateways (HDFC, Juspay)Google Maps APIReal-time Systems

Career Path

Professional Journey

Senior Full-Stack Software Developer

JUL 2023 — PRESENT

Vasundhara IT Pvt. Ltd., Pune

  • Developed and published 15+ Flutter apps (7+ live on Play/App Stores) managing full lifecycle.
  • Built Spring Boot REST APIs with PostgreSQL for all mobile and web applications ensuring scalability.
  • Reduced API response times to millisecond-level by implementing Redis caching and clustered architecture.
  • Integrated HDFC and Juspay payment gateways for secure in-app transactions.
  • Implemented WebSockets and Server-Sent Events (SSE) for live dashboard updates in industrial monitoring systems.
  • Built Python-based IoT modules on Raspberry Pi (RTD, IR, GPS sensors) for real-time data acquisition.
  • Managed GCP services including Firebase, Cloud APIs, and real-time integrations.
  • Led a team of 5+ developers, conducting code reviews and managing delivery, improving turnaround by 25%.

Trainee Android & iOS Developer

JAN 2023 — JUN 2023

Vasundhara IT Pvt. Ltd., Pune

  • Contributed to live Android projects using Java and Kotlin in Android Studio.
  • Developed an iOS application prototype using Flutter.
  • Gained hands-on experience with Spring MVC and Google Cloud Platform.

System Developer

NOV 2020 — MAY 2022

Furnotech Pvt. Ltd., Nagpur

  • Built and maintained web and Excel-based automation tools for accounting and sales teams, increasing workflow efficiency.
  • Provided system administration and troubleshooting support, resolving hardware, software, and network issues.
  • Developed tools for sales/purchase reconciliation and reporting using custom scripts.
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extraordinary.

I'm currently based in Pune, India and available for freelance collaborations or new full-time opportunities.

sagarc.dev@outlook.com
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