Dave Poirier
Verified Expert in Engineering
Software Developer
Saint-Jérôme, QC, Canada
Toptal member since September 21, 2017
Since 2010, Dave has been working full-time as an iOS developer in Objective-C and Swift. Dave also has 20 years of experience in software development specializing in Assembly (Intel) and C. Throughout the years, Dave's had the opportunity to work on many software development projects in a myriad of software languages.
Portfolio
Experience
- C - 20 years
- Assembler x86 - 15 years
- App Store Acceptance Process - 10 years
- iOS - 10 years
- Objective-C - 10 years
- Cocoa - 10 years
- Swift 4 - 3 years
- Swift 5 - 2 years
Preferred Environment
GitHub, Linux, Swift, Objective-C, Xcode, iOS, MacOS
The most amazing...
...intellectual challenge I've worked on was building a magnification and image manipulation algorithm running directly on the GPU—32x magnification in real-time.
Work Experience
Senior iOS Software Developer
Legendary Software Labs LLC
- Rewritten CoreData stack to resolve merge conflicts from asynchronous updates.
- Created thread-safe data structures for quickly searching/sorting/updating CoreData objects from several threads while improving performance 5x.
- Implemented (Firestore) cloud based data synchronization and data encryption (AES-256) layer.
Developer
APPCOM
- Developed several mobile client applications in Swift as part of a software development agency.
- Contributed to the design and implementation of server API using PHP and Laravel.
- Troubleshot and optimized based on evolving requirements.
Senior Software Developer
ID Fusion Software, Inc.
- Led the iOS and macOS development—working on multiple client projects, being involved in all aspects of the software development process from project estimates, development, testing, and releasing it in the App Store.
- Worked on several mobile-calling card applications, integrating PJSIP (Voice-over-IP), a custom JSON API, payment processing, and over-the-air calling rates update.
- Developed a full desktop magnification solution in Objective-C for macOS using primarily the GPU for the magnification and image-filtering algorithms.
- Wrote the several database administration back-ends using Yii (PHP-based) and integrating them with MySQL databases.
- Performed several bottleneck assessments and server optimization—integrating content-delivery-networks (CDN), caching servers, database replication, SQL query optimization, and code reviews/updates.
- Created several Google Analytics profiles with custom reporting scripts and dashboards.
- Tracked and investigated bug reports, coordinated with the client for bug fixes, and publishing software updates.
Experience
Piti Piti Pa | African Drum Rhythm Archive
ZoomText Mac
Base64 Library for iOS
https://github.com/ekscrypto/Base64Certifications
Scrum Master I (PSM-I)
Scrum.org
Skills
Libraries/APIs
iOS API, Superpowered Audio SDK, REST APIs, Facebook SDK, CocoaPods, Facebook API
Tools
Git, GitLab, GitHub, Bitbucket, Makefile, Xcode, Jira
Languages
Swift 5, Swift, Assembler x86, Objective-C, Swift 4, PHP 7, C, PHP, Swift 3, C++, Perl, Python 3, Python
Frameworks
iOS SDK, Cocoa, Yii 1, Yii 2, Laravel, Core Data, Cocos2d-x, CocoaLumberjack
Paradigms
Concurrent Programming, Database Design, Real-time Systems, Agile Software Development, REST, Functional Programming, App Store Optimization (ASO)
Platforms
Linux, iOS, Kernel Programming, MacOS
Storage
MySQL, Databases, JSON, MariaDB, Cloud Firestore, Memcached
Other
Data Structures, Firewalls, App Store Acceptance Process, Algorithms, Data Encryption, Advanced Encryption Standard (AES), Asymmetric Encryption, Device Drivers, iPad, Content Delivery Networks (CDN)
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
Share your needs
Choose your talent
Start your risk-free talent trial
Top talent is in high demand.
Start hiring