What I've done and My

Skill Sets

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Day-to-Day Comfort

GIT / SVN Xcode 26 Swift / SwiftUI / Objective C CI/CD / Github Actions Jira / Confluence / Github Gemini CLI / Claude Code AI tools (MCP server Plugins & Skills)

Experience With

JAVA / JAVASCRIPT Sketch / XD / Figma Github CoPilot / Claude Code HTML5 / CSS3

Objective C / Swift

Design patterns MVC, Delegation, Singleton, Concurrency management, collection types. ARC, Optional Chaining, Protocols, Extensions, Generics.

Frameworks

Address book, Assets Library, Core Graphics / Image / Location / Text / Video / Motion, Foundation, Health Kit, Map Kit, Media player, Sql Lite 3.0, Security, Social. XCTest for unit & UI testing.

Features

App extensions, Handoff, UIKit Dynamics, Background fetch, Siri kit, Size classes, Interactive APNS, Local notifications, Custom Gesture recognizers.

Core Services

GCD, In app purchase, SQL Lite, Core data.

App Management

Generating Certificate & provisioning, iTunes connect configuration App store upload, test flight distribution both internal & external, App analytics.

Xcode / Others

Integration of third party frameworks via COCOA PODS, Instruments, Time profiling, allocation, memory leaks, LLDB, Custom breakpoints, View Debugger, Touch ID, Source editor extensions, Barometer, Three Axis Gyro, Accelerometer. Ethical Hacking - Jailbreaking iPhone, MTM (Man in the Middle attack), Reverse Engineering Binary.

Lead Software Engineer
EPAM Systems Inc. · Sep 2020 – Present

Led a team of iOS developers in the development and delivery of high-quality iOS apps. Worked with clients to gather requirements and develop feasible solutions on the Apple platform. Coordinated with cross-functional teams to ensure projects were delivered on time and within budget.

Tech Lead (iOS)
Optimize IT Systems Pvt. Ltd. · Mar 2019 – Sep 2020

Led a team of 5 developers in the delivery of 3 projects. Participated in pre-sales activities, including technical bid review, mobile solution review, and estimation and forecasting of project timelines. Collaborated with UI/UX team to migrate from Photoshop to Sketch and later to Adobe XD.

Associate Consultant
Atos India Pvt. Ltd. · May 2015 – March 2019

Developed iOS mobile applications end-to-end — analyzing client requirements, planning UI/UX with the design team, coding, writing unit tests, and polishing with Xcode Instruments. Coordinated with QA teams for ad-hoc build distribution and continuous bug fixing. Monetized apps with in-app advertising and published to the App Store. Received the 'Atos Expert' award for boosting innovation and setting high standards in project delivery.

Software Engineer
Indusnet Technologies (Formerly Customer First Infonet Private ltd.) · Jan 2014 – May 2015

Developed iOS Mobile Applications. Worked in a dedicated hiring model for offshore clients, sharing code via DVCS (GIT). Estimated requirements and timelines for maintaining and developing new applications. Wrote unit test code and distributed builds to internal testers and clients.

Jr. iPhone Developer
Micronix System (Formerly Micronix Technologies Pvt. Ltd.), Kolkata · July 2013 – Jan 2014

Developed iOS mobile applications, evaluating client requirements and planning UI/UX with the design team. Coded the recommended solutions, monetized with in-app advertising, and published finished apps to the App Store.

B. Tech. (CSE)
Heritage Institute Of Technology, Kolkata · Aug 2008 – May 2012

DGPA – 7.28. Exploring the programming languages C, C++, JAVA, Data Structures, Algorithms, Computer graphics, Engineering Mathematics, Physics.

12th, Science (PCMB)
St Joseph's Public School, Samastipur, Bihar · May 2004 – May 2006

63%. Gaining understanding of science in Mathematics, Biology, Physics, Chemistry.

10th
May 2002 – May 2003

75%. Learning the principles of basic sciences. Taking part in drama activities. Got award for distinctive performance in 2nd National Cyber Olympiad.

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