Senior Ios Mobile Developer

PROFESSIONAL SUMMARY

*+ years’ experience in iOS mobile application development experience.

* **** ********* ** ***** Store

Able to design and develop rich UI/UX via programmatic means, XIBs, as well as through Storyboards.

Extensive use of Apple and third-partyframeworks and tools for storing data persistently such as; CoreData, Documents Directory, NSUserDefaults, pLists, Settings Bundle, NSKeyedArchiver (NSCoding protocol), and the Keychain

iOS expertise includes WatchKit, Healthkit, iBeacon Bluetooth Low Energy (BLE), Unit Testing, over-the-air Ad Hoc App Distribution, Storyboarding, Core Data, Internationalization and Localization, in-app purchase, ad and analytics integration, Auto Layout, Apple Push Notification.

Seasoned in Agile/SCRUM project management methodologies

Demonstrated skills in the use of databases such as SQLite and MySQL

Demonstrated success in working on all phases of the software development lifecycle (SDLC) process including requirements gathering, design, coding, documentation, testing, debugging and maintenance

Excellent track record of designing and implementing flexible solutions in Mobile IOS application Development using UIKit, Core Foundation with Cocoa touch

Strong knowledge about Core Frameworks like, MapKit, CoreGraphics, CoreAnimation, UIKit, CoreLocation, AVFoundation, CoreData, CloudKit, CoreBluetooth, EventKit, and Social framework

Expertise in MVC and MVVM design architecture, as well as OOP patterns and concepts like delegation, protocols, notifications, and categories/extensions

Skilled in troubleshooting and testing using LLDB, NSLog & print statements, breakpoints, and Instruments

Proficient in source control with Git and SVN and use of third-party GUIclients such as SourceTree, Tower, and GitHub

Flexible in the integration and management of 3rd party framework dependencies using Carthage and CoacoaPods

Contributed problem-solving analysis and recommended solutions within the guidelines of the project and following best practices to iOS app development, such as scalability, re-usable code, and consistency

Experience working with in-app purchase iOS application for the iPhone/iPad along with distinct marketing-based iOS applications enhancing sharing through social networks and email

Adept at communicating with stakeholders,product, and marketing teams to discuss project milestones

Seasoned in consuming RESTful and SOAP services and parsing through JSON and XML data responses

Excellent communication, organizational skills, attention to detail and the ability to meet tight deadlines

Strong commitment to organizational work ethics, supporting organizational goals and the team

Mentors and guides junior team members, participates in code reviews, paired programming sessions, and organizing scrums and sprints

TECHNICAL SKILLS

Languages

Swift, Objective-C, C/C++, Python Assembly, Unix, MatLab, VisualBasic, Verilog

Databases

Core Data, SQLite, MySQL

Frameworks

CocoaPods, CocoaTouch, AFNetworking, AVFoundation, MapKit, Core Location, Reachability, UIKit, EventKit, GCD, Keychain, Core Data

Version Control

SVN, GIT, SourceTree, Tower, Command Line / Terminal, GitHub, Bitbucket

IDEs

XCode, Visual Studio, Android Studio

Architecture Patterns

MVVM, MVP, MVC, VIPER

Project Management Tools

JIRA, Confluence, KanBan, Redmine, Basecamp, Slack

Methodologies

PSP, SCRUM/AGILE, TDD

Testing Methods

Unit Testing, XCTest, Automated Testing

Continuous Integration

Jenkins, Travis, Hudson, TestFlight

PROFESSIONALEXPERIENCE

Senior iOS App Developer

Client: Michaels, Irving, TX December 2021 to Present

https://apps.apple.com/us/app/michaels-stores/id445458809

Implemented the front end for the store-map feature with Rest backend services for dynamic placement of in store aisles on store-map

Rendering logic for the store layout using CoreGraphics

Implemented product search feature, which supports barcode scanning and voice commandswith AVCaptureSession and AVFoundation

Feature lead for the Weekly Ad and Coupon section

Rendering engine for coupons, which handles images and PDF documents

Utilized annotations with MapKit to make modifications to the store locator feature

Pinch-zoom for full-size coupons and ads

Fixed numerous bugs related to logic, OAuth, and session management

Created 40+ screens using SwiftUI, very carefully based on a Figma template

Worked harmoniously with QA and Backend engineers to achieve company goals

Refactored design of app to use colors in an asset catalog for universal company design/pallet.

Fixed numerous bugs related to the account section

Corrected lagginess which was caused by CoreData faults in the shopping cart

Utilized keychain to store user passwords securely

Added AES encryption for protected user data to be transmitted securely over the network

Added touch-states to several buttons across the app which were missing them

Corrected the hit-area of several buttons which were in violation of the Apple Human Interface Guidelines

Created revolving carousel, which automatically circulates a revolving and customizable product carousel

Senior iOS Mobile Engineer

Bath and Body Works, Reynoldsburg, OH July 2020 – August 2021

https://apps.apple.com/us/app/my-bath-body-works/id1256027729

Implemented the rewards list feature using UIKit, MVC architecture, and an existing network layer

Implemented front-end push notification service to notify customer of important deals

Created numerous layouts and interfaces for time-constrained promotions

Stored sensitive information about the user in the Keychain for extra security

Implemented a custom image cache using twin LRU caches, for RAM and HD

Created a palette of colors, library of fonts, and other universal UI styling features

Implemented dynamic text, which meant re-working a lot of layout constraints, to support large fonts.

Upgraded the reachability suite to use NWPathMonitor

Added a feature to persist outbound URL requests, which would be dispatched once the user re-establishes internet

Built a custom recycling carousel view, which swipes from last page back to first. This was implemented efficiently, such that the current-active element downloads its content with the highest priority

Resolving many difficult storyboard conflicts

Custom path rendering for the dotted lines on the edges of certain coupons

Rendering coupon pipeline which works on all platforms with PDF, SVG, JPEG, and PNG data

Implemented pinch-zoomable full-screen coupons

Carefully implementing several effects such as blur animations (and many more)

Carefully analyzing and reviewing other developers’ pull requests on GitHub

Using dynamic programming to solve regular expression-like problem

Built several prototype apps for navigation shells, one of which ultimately ended up replacing the existing app shell. Migrated entire app into my new app shell

Created a custom component-based animation system, which links images together based on pivot points. These were used for in-app-promotions

iOS Application Developer

Meijer, Grand Rapids, MI December 2019 – June 2020

https://apps.apple.com/us/app/meijer-delivery-pickup/id583093664

Feature lead for "Shop and Scan" portion of app using proprietary barcode SDK

Implemented the KMP pattern matching algorithm to highlight text matching search bar.

Implemented the mPerks ID feature, which can be scanned at checkout

Wrote the front-end code for product search using UITableView and custom cells.

Implemented the entire "more" section, which includes Account and Settings

Feature lead for "Rewards" section of app

Used UIKit, layout constraints, compression resistance, and content hugging to handle dynamic type

Added the "Clip Coupon" feature, using UIPasteBoard

Added SSL pinning to verify trusted server and prevent man-in-the-middle attack.

Took initiative to assign myself bugs from the backlog, which I solved

Fixed numerous UI/UX bugs related to device size

Implemented the "Weekly Ad" section

Created several promotional banners for the home page of the app

Used LaunchDarkly for feature flags

Implemented a system for A/B testing

iOS Developer

Client: Rocket Farm Studios, Boston, MA December 2018– December 2019

https://apps.apple.com/us/app/sermo-physician-network/id438752890

Worked with Navigation controllers, Navigation Bars & Tab Bars

Involved in Integration of web-based content made with HTML5 on a Native app using WKWebView

Installed frameworks and tracked dependencies using CocoaPods

Worked in a team of 4 other iOS developers

Sent push notifications to APNS

Integrated social media support via Facebook with the FBSDK

Validated input values to make sure that they will be accepted before they are submitted

Worked on GCD to build a responsive UI and implemented background threads

Worked with Objective C, Swift and Cocoa frameworks

Resolved bandwidth, memory, and performance issues

Implemented URLSession to integrate with backend web services

Published the application on App Store and then pushed updates after every sprint release

Designed icons and images that are required for App using Sketch

Responded to constantly changing project requirements and kept the project on track

Developed Delegates for updating the model information

Worked heavily with persistence: Set-up an SQLite parser, saved and loaded values from Core Data, and set up a Core Data model to handle arbitrary data

Worked on UIViews & UITableViews for user interface in the application

GDB for debugging and worked with Xcode

Created a side swipe menu controller which makes it easy to navigate through the application

Integrated iPhone application with applications across all aspects of the client: user input, protocols, performance, memory management, debugging

iOS Application Developer

Speech Analyzer, San Francisco, California December 2015 – November 2018

https://apps.apple.com/us/app/speech-analyzer/id1553659443

Assisted in full life cycle of mobile iOS that includes testing on device and simulator as well

Used Agile development methodology

Worked iteratively with Product, Design, Back-End and QA teams

Developed the iOS mobile app in Swift and Objective-C using Xcode

Implemented search and refine search functionality and tightly bound data to the view using RxSwift

Developed the services that went into the core structure of the app. Created using UITableViews to display various content that is easily readable and clicked on using the IOS design guidelines

Created new build scripts and updated existing build scripts using Python

Implemented feature that allows the user to import their contacts from their device

Managed Jenkins Continuous Integration server and created builds for testing and production

Applied Git for version control management, and applied multiple design patterns such as Delegate and Promises/Futures

Configured RESTful API to integrate with internal services and third-party services

Implemented Firebase for push notifications

Used GCD and NSOperation Queue to improve app responsiveness and performance

Supported testing team during test cycle to address issues found before release

Redesigned app to create user interface targeting multiple device sizes.

Utilized Charles Proxy to test analytic data

UIKit, RESTful Web Services, Agile Scrum Development, HTML/CSS, Jira Charles Proxy, Jenkins

iOS App Developer

Sprint, Overland Park, KS March 2014-November 2015

https://apps.apple.com/us/app/my-sprint-mobile/id491126018

Coded the application in a hybrid codebaseof Swift and Objective-C using bridging headers

Worked to assist in development of the application using Xcode, and managed Git code repository with SourceTree with a Jenkins CI

Invoked RESTful web service calls using AFNetworking framework; POC’s made in Swift

Analyzedwritten web services to interface with the iOS Mobile App. All web services were RESTful and used Open Authentication to implement a secure environment

Refactored RESTful requests from NSURLConnection to AlamoFire to be compatible with iOSnew standard

Worked with MVVM architectural pattern and Delegation, Notifications, KVC, and Singleton design patterns

Participated in brainstorming sessions for iOS app enhancements, features, and fixes

Adapted Core Animation and CALayer to crop and animate images over videos

Applied new layout, refactored source code, reduced app size, fixed memory leaks, reviewed source code, and optimized performance. Performed unit test. Managed project configuration

Assisted in running various Agile project management meetings (Sprint Planning Meetings, Scrums, etc.

Built wireframes for app designs, Coding of applications, Built application test framework with UI Automation

Built, tested, and deployed a scalable and modular application. Also modified existing software to correct errors, improve performance and adapt to new versions of iOS

EDUCATION

Bachelor of Science in Computer Science from University of Saskatchewan

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