Vladimir is available for hire
Hire VladimirVladimir Fedorov
Verified Expert in Engineering
Bluetooth Developer
Budva, Budva Municipality, Montenegro
Toptal member since April 17, 2019
Bio
Vladimir creates iOS and macOS applications with supporting back-end APIs and services for companies around the world, delivering streamlined, lag-free user experiences and clean code. He believes in proven techniques like TDD and GitFlow. With 14+ years of experience in software development, Vladimir has worked in large companies and with small startups, developing both small custom controls and complex integrated business solutions.
Portfolio
Freelance Work
Bluetooth, iOS, MySQL, SQLite, Redis, MongoDB, Node.js, Objective-C, Swift, Git...
Lyrasis, Inc.
Objective-C, iOS, Swift, SAML, C++, SwiftUI, GitHub Workflows...
Blu World Pte Ltd
Swift, iOS, Stripe Payments, Web Services, Objective-C, Firebase, Git, iOS SDK...
Experience
Availability
Full-time
Preferred Environment
Git, Xcode, MacOS
The most amazing...
...piece of software I've made was an animated track view for competing participants with a lot of math and custom animations for speeding up and overtaking.
Work Experience
iOS and macOS Developer | Back-end Developer
2013 - PRESENT
Freelance Work
- Developed an iOS app for courier company drivers that enabled the company to help them with navigation, route tracking, ETAs for the customers, print labels for parcels on mobile printers, and keep in touch with headquarters.
- Created a set of iOS applications to control and program Bluetooth-connected robots: the app is connecting to a robot over BLE, and users can send commands directly and create apps with a Blockly interface to control these robots.
- Developed an iOS app for Favsync BVA startup to store and present various content on their portal like links, texts, images, and video files.
- Built a set of custom animated controls for iOS apps, based on their device, gyroscope, animations, and user input.
- Converted a console app from C to Swift, adapting it to the modern macOS environment.
- Created a macOS app to design and print custom labels for HDD libraries.
- Developed an iOS application and back-end code for a startup promoting events in Brazil with navigation, ticket booking, payments, and chats between participants.
- Constructed a custom PDF library for iOS based on a C library (LibHaru) that enabled audio annotations in PDF files.
- Developed a control room software for an escape-the-room quest organizer.
Technologies: Bluetooth, iOS, MySQL, SQLite, Redis, MongoDB, Node.js, Objective-C, Swift, Git, REST APIs, iOS SDK, Architecture, Frameworks, Mobile Development, iOS Native Libraries, Mobile Architecture, Xcode, Test-driven Development (TDD), iCloud, SendGrid API, Amazon S3 (AWS S3), APIs, ECMAScript (ES6), CloudKit, GitFlow, DigitalOcean, SwiftUI, TestFlight, Stripe, Stripe API, Bluetooth Low Energy (LE), ARKit, Apple HealthKit, Large Language Models (LLMs), Apple Pencil, Core Graphics, Core Animation, Swift 5, Mobile Apps, Desktop App Development, Core Services, Desktop, File Management, Operating Systems
Elite Mobile Engineer
2020 - 2023
Lyrasis, Inc.
- Integrated the project's existing DRM library with a third-party content protection library.
- Developed a PDF reader capable of handling files with DRM protection featuring low-level on-the-fly decryption.
- Extended VoiceOver support in a third-party reader software.
- Upgraded older Objective-C code and project storyboards to Swift and SwiftUI.
- Developed software that compiles a list of changes for each project release.
- Architected and maintained GitHub workflows and scripts for continuous integration.
Technologies: Objective-C, iOS, Swift, SAML, C++, SwiftUI, GitHub Workflows, Digital Rights Management (DRM), Voice Over, Keychain, Git, GitFlow, iOS SDK, Architecture, Frameworks, Mobile Development, iOS Native Libraries, Mobile Architecture, Xcode, TestFlight, Swift 5, Core Graphics, Core Animation, Mobile Apps
iOS Mobile Developer
2019 - 2020
Blu World Pte Ltd
- Developed a mobile application enabling users to send and receive packages through the client's designated pick-up points.
- Implemented package delivery status tracking through the client's API.
- Developed the application from the ground up to its final release on the App Store.
Technologies: Swift, iOS, Stripe Payments, Web Services, Objective-C, Firebase, Git, iOS SDK, Architecture, Frameworks, Mobile Development, iOS Native Libraries, Mobile Architecture, Xcode, TestFlight, Core Graphics, Core Animation, Mobile Apps, File Management
Freelance Developer
2015 - 2018
Low Cost Parcels
- Developed an iOS app for courier company drivers that enabled the company to help them with navigation, route tracking, and keeping in touch with headquarters.
- Developed software to print parcel labels on a thermal printer on the go.
- Implemented an integration of driver tracking into the company's back-end system, providing customers with real-time estimated time of arrival (ETA) updates.
Technologies: Objective-C, REST, Navigation, Maps, Bluetooth, REST APIs, iOS SDK, Architecture, Frameworks, Mobile Development, iOS Native Libraries, Mobile Architecture, Xcode, iOS, Swift, TestFlight, OpenAI, Mobile Apps
Galaktika EPR Consultant | Developer
2012 - 2013
Transneft Siberia (Sibnefteprovod)
- Created an ERP business application for the staff department.
- Developed an ERP business application for the transportation department.
- Created and supported a set of reports in the ERP software.
Technologies: JavaScript, Enterprise Resource Planning (ERP), Data Analysis
Senior Software Developer
2006 - 2012
Corporate Systems, Programs and Solutions
- Developed a suite of software for the Tyumen State Library, Microsoft CRM, and library software integration.
- Built an integration library for a dairy holding, binding Microsoft CRM data with a Galaktika ERP.
- Created data integration and analysis libraries and KPI dashboards.
- Developed a set of VBA macros to support accounting software.
- Developed a mobile app for a dairy holding.
Technologies: Visual Basic for Applications (VBA), Windows Mobile, Microsoft Dynamics CRM, OLAP, Microsoft SQL Server, JavaScript, ASP.NET, C#, Git, APIs
Software Developer
2004 - 2006
Tyumbit-ASU
- Developed business applications and reports for Galaktika ERP.
- Composed SaxBasic scripts for ARIS (business process automation suite) that helped clients to get their process description on different levels of process modeling.
- Developed Microsoft Excel-based reports connected to various data sources (DBF files, Microsoft SQL).
Technologies: Visual Basic for Applications (VBA), JavaScript, C#, Git, APIs
Experience
Driver Application | Low Cost Parcels
http://lowcostparcels.co.ukDeveloped for Lowcostparcels.co.uk, the app shows the driver's daily route and route tracking, gives information about their ETA with the Google Maps API, scans barcodes to track collected parcels, and prints labels on a mobile BT printer.
Label Maker | Film Drives
https://filmdrives.com/pages/label-makerThis macOS app enables a user to create custom labels for HDD collections. With this app, a user can print a set of labels with custom project images, company logos, and auto numeration for video production companies.
Escape-the-room Control Room Software | Extremescape
This is a macOS application for escape-the-room experiences. The application was developed to provide multiple experience theme image sets, a room timer, and one-way communication with players in the room.
PDF Audio Annotations Library
Developed back in 2014, this library was made to add audio annotations to PDF files to corporate iOS software. Although the format itself supports various objects in files, built-in iOS libraries are quite limited in that area. I developed this iOS library based on a C PDF library and it became a great solution there, enabling users to comment documents with their voice.
Education
2004 - 2005
Engineer's Degree in Computer Science
Tyumen State Oil and Gas University - Tyumen, Russia
2000 - 2004
Bachelor's Degree in Computer Science
Tyumen State Oil and Gas University - Tyumen, Russia
Certifications
JUNE 2010 - PRESENT
MB2-634 Microsoft Dynamics CRM 4.0 Extending Microsoft Dynamics
Microsoft
Skills
Libraries/APIs
Node.js, iOS Native Libraries, Core Graphics, Core Animation, SendGrid API, REST APIs, Stripe, Stripe API
Tools
Xcode, Git, TestFlight, Microsoft Dynamics CRM, Apple HealthKit
Languages
Swift, Objective-C, ECMAScript (ES6), JavaScript, Swift 5, C#, Visual Basic for Applications (VBA), SAML, C++, C
Frameworks
CloudKit, SwiftUI, iOS SDK, Core Services, ASP.NET, UIKit, AppKit, ARKit
Paradigms
Test-driven Development (TDD), Mobile Development, Desktop App Development, REST, OLAP
Platforms
MacOS, iOS, iCloud, Keychain, Desktop, DigitalOcean, Firebase, Bluetooth Low Energy (LE), Windows Mobile
Storage
Redis, MongoDB, SQLite, MySQL, Amazon S3 (AWS S3), Microsoft SQL Server
Other
GitFlow, APIs, Architecture, Frameworks, Mobile Architecture, Mobile Apps, File Management, Bluetooth, Apple Pencil, Data Analysis, Enterprise Resource Planning (ERP), GitHub Workflows, Digital Rights Management (DRM), Voice Over, Stripe Payments, Web Services, Navigation, Maps, App UI, PDF, OpenAI, Large Language Models (LLMs), Operating Systems
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