Backend Developer (Java, Spring/Spring-Boot)

About Me

Hi, my name is Chaman Singh and I’m a Backend Developer. Also having experience in iOS and Android Development from scratch to make app live (in play store or app store).

I am most skilled in:

Backend = Java, Spring, Spring-Boot
iOS App Development = iOS (Swift)
Android App Developement = Android (Java And Kotlin)

Projects

Nutritap Kiosk

Technology = Java, Spring Boot, JPA, Liquibase, Mysql, Redis.

Nutritap has their own vending machines that user can operate via mobile app. In this project I wrote the functionality related to User login, access based on roles, Kiosk configuration, sales capturing, payment confirmation, order for a - user, location or kiosk, coupon functionality and referral functionality etc. Nutritap also fills these kiosks/vending machine also wrote the functionality to capture the filling details like which nutritap filler is filling what product and how many quantities for which machine and location. Also developed a flow to capture the incoming and outgoing of orders/products on warehouse level.

Nutritap Kiosk - iOS App

https://apps.apple.com/app/id1473560100

Technology = iOS - Swift

By downloading this app user can register himself in nutritap system and can access their smart kiosk. Can select the product he wants to buy and will open kiosk, pick the product and pay via upi, cc, debit card or paytm etc and can enjoy his drink/snacks.

Nutritap Kiosk - Android App

https://play.google.com/store/apps/details?id=in.nutritap.kioskapp

Technology = Android (Java, XML)

Implemented digital payment and coupon functionality in this app.

Nutritap Filler - Android App

Technology = Android (Kotlin, XML)

With the help of this app filler updates about the filling, which product, how many quantity etc he filled in for which machine.

Huksa - Android App

https://play.google.com/store/apps/details?id=com.huksalabs.app

Technology = Android (Java, XML)

Huksa is a mobile app that helps you to create and manage your professional networks, invite paid or free experts for the benefit of members and monetise the private interactions. Also provides meeting over audio, video call and one to one and group conversation.

Huksa - iOS App

https://goo.gl/Qjryhz

Technology = iOS - Swift

Spring-Pet-Clinic Clone

https://github.com/ChamanGurjar/CG-Spring-Pet-Clinic

This is the part of my backend Development learning.

I started this project as a way of learning Spring-boot and it has since grown into a fully fledged app. I have learned many skills through this and been I’m very proud of having this in my portfolio. NOTE - This project is the clone of/refrenced from - https://github.com/spring-projects/spring-petclinic

SWIFT-UI

https://github.com/ChamanGurjar/Swift-UI-HackingWithSwift

This is the part of my Swift UI learning.

I started this project as a way of learning SwiftUI. I followed the tutorials from https://www.hackingwithswift.com , author-by Paul Hudson.

Experience

Mercer-Mettl

https://mettl.com/

SDE2

May 2020 - Present

Working here as a Backend Developer (Java, Spring, Spring-Boot, Hibernate, Jpa, Liquibase etc)…

Nutritap Technologies Pvt. Ltd.

https://nutritap.in/

Application Developer

April 2019 - May 2020

In Nutritap, I was handling Backend (Java, Spring-Boot) and Mobile App Development (iOS And Android). Nutritap has their own vending machines that user can operate via mobile app. Written the Nutritap iOS App from scratch and made improvements and enhanced functionality in Android App. Also written the backend for smoothly operating the nutritap vending machine via Mobile App.

Center for Endeavour (CFE) India.

http://www.cfeindia.in/

Mobile Developer

June 2016 - April 2019

I joined CFEINDIA as iOS Developer, but in span of 3 years here developed 2 iOS App, 1 Android App and also developed the backend (Java, Spring, Spring-Boot etc.). In backend I was the part of 3 live projects that was using by the actual user in real time.

Education

AKGEC - Ghaziabad. University - UPTU.

Master Of Computer Application (M.C.A)

2013 - 2016

I passed MCA from akgec in 2016 by marks above 72%. I learned Java And Swift in 4th and 5th Semester respectively. Did the internship as iOS Developer in CFEINDIA Pvt. Ltd in 6th semester.

BIT - Muzaffar Nagar. University - CCSU.

Bachelor Of Computer Application (B.C.A)

2010 - 2013

I passed BCA from BIT in 2013 by marks above 68%.

12th U.P. Board

2010

I passed 12th from Uttar Pradesh Board (Hindi Medium) in Physics, Chemistry and Math (P.C.M. Group) in 2010.

10th U.P. Board

2008

I passed 10th from Uttar Pradesh Board (Hindi Medium) in science stream in 2010.