Shashi Chunara
Fremont
Summary
Senior iOS Engineer with 16+ years of experience designing and delivering scalable, high-performance mobile applications across retail, healthcare, BLE, and enterprise domains. Strong expertise in Swift, Objective-C, MVVM-C and VIPER architectures, BLE integrations, async programming (Combine), and CI/CD pipelines. Proven leader experienced in owning features end-to-end, improving code quality, and collaborating across cross-functional teams. Innovative Senior iOS Engineer known for high productivity and efficiency in task completion. Possess specialized skills in Swift programming, UI/UX design principles, and API integration to deliver robust mobile applications. Excel at problem-solving, team collaboration, and adaptability in fast-paced environments, ensuring project success from conception to deployment.
Overview
14
14
years of professional experience
Work History
Senior iOS Engineer / Technical Lead
Compunnel Software Group Inc.(Walmart iOS app)
Sunnyvale
11.2022 - Current
- Leading iOS initiatives related to Walmart+ membership workflows.
- Implemented async backend integrations using Combine framework.
- Built features for membership enrollment, status handling, and analytics dashboards.
- Ensured adherence to MVVM-C architecture and code standards.
- Wrote unit tests within sprint cycles and maintained CI pipeline health.
- Collaborated in Agile sprints and led iOS-side technical discussions.
- Improved Walmart+ membership acquisition conversion rate by 16% year to year through optimized onboarding flows and streamlined backend integration.
- Reduced API response handling time by 25-30%, using combine framework, it's improving screen load performance.
- Contributed to 12% increase in successful year to year member enrollments during feature rollout period.
Technical Lead - iOS
Infostretch Corporation
Santa Clara
08.2021 - Current
- Architected modular healthcare apps using MVVM-C.
- Implemented QR-based diagnostic and reporting workflows.
- Integrated REST APIs using Alamofire.
- Enforced architectural consistency and code quality practices.
- Led client communication and cross-team coordination.
- Maintained CI/CD compliance and test coverage standards.
- Developed and reviewed technical specifications for project requirements.
- Led cross-functional teams to deliver software solutions for various clients.
Senior iOS Developer
Infostretch Corporation Pvt. Ltd.
Ahmedabad
11.2020 - 07.2021
- Developed BLE communication layer using CoreBluetooth.
- Integrated SDK for wearable device data sync and firmware upgrades.
- Implemented secure authentication using Auth0.
- Logged SDK events using CocoaLumberjack.
- Delivered frequent TestFlight builds for QA validation.
Senior iOS Developer
Infostretch Pvt LTD
Ahmedabad
03.2019 - 10.2020
- Built application from scratch using VIPER architecture.
- Developed custom graph visualizations without third-party libraries.
- Integrated APIs using AFNetworking.
- Coordinated directly with clients and cross-functional teams.
- Developed robust iOS applications using Swift and Objective-C frameworks.
- Collaborated with cross-functional teams to define project requirements and specifications.
Senior iOS Developer
Infostretch
Ahmedabad
04.2017 - 01.2019
- Integrated BLE-enabled glucose meters using CoreBluetooth.
- Processed and visualized patient glucose data.
- Synced health data with Apple Health.
- Performed performance tuning and memory optimization.
- Participated in Agile ceremonies, contributing insights during sprint planning and retrospectives.
Senior iOS Developer
Infostretch
Ahmedabad
02.2015 - 02.2016
- Designed and implemented app architecture.
- Integrated CoreLocation, MapKit, EventKit, and SQLite.
- Managed real-time synchronization features.
- Led debugging and client coordination.
- Implemented RESTful APIs for seamless data integration between front-end and back-end systems.
Senior iOS Developer
Xoom Solutions
Ahmedabad
04.2013 - 01.2015
- Responsibility of developing iOS app using objective C or swift.
- Handling client communication.
- Guide team to achieve milestones and for technical queries.
iOS Developer
Indianic Solutions
Ahmedabad
10.2011 - 03.2013
- Developed iPad-based education and PDF annotation applications.
- Implemented iCloud and Dropbox backup/restore functionality.
- Built live audio/video streaming app for government client.
- Recognized with "Best Developer" award (Q3 2011).
- Conducted code reviews to maintain high-quality standards in development.
Education
PG Diploma - Business Information Technology
Middlesex University
London, UK01-2009
Bachelor of Science - IT
Gujarat University
Ahmedabad, India05-2005
Skills
- Swift
- Objective-C
- IOS SDK
- UIKit
- Cocoa Touch
- MVVM-C
- VIPER
- MVC Architecture
- Combine Framework
- Async Programming
- CoreBluetooth
- REST APIs
- Alamofire
- AFNetworking
- Unit Testing
- XCTest
- CI/CD Pipelines
- Memory Management
- Performance Optimization
- Git
- Bitbucket
- Jenkins
- Bamboo
- Agile
- Scrum
- C
- C
- JavaScript
- TypeScript
- CoreLocation
- MapKit
- EventKit
- AVFoundation
- CoreData
- SQLite
- Xcode
- Instruments
- Bitbucket Pipelines
- SVN
- Unit testing
- Client communication
- Continuous integration
Accomplishments
- Bright Spark Award, 01/01/18, Infostretch
- Bright Spark Award, 01/01/19, Infostretch
- Best Developer Award, 01/01/11, Indianic Solutions
Personal Information
Title: Senior iOS Engineer | Technical Lead
Timeline
Senior iOS Engineer / Technical Lead
Compunnel Software Group Inc.(Walmart iOS app)
11.2022 - Current
Technical Lead - iOS
Infostretch Corporation
08.2021 - Current
Senior iOS Developer
Infostretch Corporation Pvt. Ltd.
11.2020 - 07.2021
Senior iOS Developer
Infostretch Pvt LTD
03.2019 - 10.2020
Senior iOS Developer
Infostretch
04.2017 - 01.2019
Senior iOS Developer
Infostretch
02.2015 - 02.2016
Senior iOS Developer
Xoom Solutions
04.2013 - 01.2015
iOS Developer
Indianic Solutions
10.2011 - 03.2013
PG Diploma - Business Information Technology
Middlesex University
Bachelor of Science - IT
Gujarat University