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Daniil – iOS, Swift, Alamofire, experts in Lemon.io

Daniil

From Slovakia (GMT+2)

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Mobile DeveloperSenior
Hire developer
13 years of commercial experience
Advertising
AI
Communications
Cryptocurrency
Entertainment
Fintech
Healthcare
Healthtech
Job and career services
Media
Mobile apps
Video streaming software
Lemon.io stats
3
projects done
1223
hours worked
1
offers now 🔥

Daniil – iOS, Swift, Alamofire

A Senior iOS developer with 12 years of expertise, Daniil is comfortable in both Tech and Team Lead positions. He has been part of the mobile development landscape from its early stages, bringing a wealth of experience to the table. Daniil has a business-oriented approach and a clear vision of how the architecture of certain apps should look like. Outside of work, he enjoys sci-fi and snowboarding!

Main technologies
iOS
12 years
Swift
8 years
Additional skills
Alamofire
Objective C
AFNetworking
Cocoa Touch
SwiftUI
Firebase
Core Data
SQLite
MapKit
Core Bluetooth
REST API
RxSwift
MVVM
UIKit
Realm
Clean Architecture
GoogleAPI
MapBox
HealthKit
Flutter
XCTest
MacOS
Node.js
JavaScript
Rewards and achievements
Tech interviewer
Ready to start
17.12.2024
Direct hire
Potentially possible

Ready to get matched with vetted developers fast?
Let’s get started today!Hire developer

Experience Highlights

Staff Software Engineer, iOS
Feb 2024 - Ongoing9 months
Project Overview

Marketplace for freelancers, AI Copilot, Flutter migration

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Responsibilities:
  • Migrated 60% of WebView features to Flutter, achieving an 80% improvement in performance and enhancing maintainability;
  • Led the development and integration of an AI Assistant, delivering automation and improving app functionality;
  • Designed and maintained core Flutter packages, enabling reusable components and a scalable cross-platform architecture for mobile, web, and desktop platforms;
  • Delivered Flutter solutions for native iOS and Android, ensuring cross-platform consistency and high-quality user experiences;
  • Streamlined architecture and delivery processes, improving development efficiency and accelerating feature rollouts;
  • Enhanced iOS applications using modern development tools, integrating seamlessly with Flutter for a cohesive experience;
  • Focused on performance optimization, improving app responsiveness and scalability for a global user base.
Project Tech stack:
iOS
Flutter
Swift
SwiftUI
Dart
SQLite
Engineering Manager / iOS Tech Lead
Feb 2023 - Feb 20241 year
Project Overview

This is a video streaming service that offers the same features as the Tango app.

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Responsibilities:
  • Led strategic planning for mobile application development, aligning team efforts with business objectives and driving innovation'
  • Built and scaled high-performing teams, fostering collaboration, growth, and excellence in delivery;
  • Established transparent delivery workflows and implemented OKR methodology, ensuring alignment with strategic goals and measurable team performance;
  • Elevated code quality and optimised performance, resulting in a 200% increase in daily active users and a 90% improvement in user satisfaction;
  • Introduced 1:1 sessions and Personal Development Plans (PDPs), supporting individual growth and aligning goals with organizational priorities;
  • Standardized and optimised development processes, improving efficiency and consistency across projects;
  • Enhanced collaboration across cross-functional teams, ensuring seamless product delivery and alignment with organizational objectives;
  • Designed automation and monitoring systems, improving transparency, quality metrics, and process reliability;
  • Continuously evaluated industry trends and emerging technologies to drive innovation and maintain technical relevance.
Project Tech stack:
iOS
Swift
Clean Architecture
Agora.io
SnapKit
UIKit
SwiftUI
Combine
Head of Mobile / iOS Team Lead
Nov 2019 - Dec 20223 years 1 month
Project Overview

The company proposes to buy, store, exchange, and move traditional or cryptocurrencies at over-the-counter (OTC) and interbank rates in the app and seamlessly spend them using the new Mastercard or the Visa card.

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Responsibilities:
  • Led strategic planning for mobile app development, aligning team initiatives with business objectives and driving technological innovation;
  • Scaled the team from 4 to 17 developers, building a high-performance culture and fostering collaboration and growth;
  • Introduced and integrated OKR methodology, achieving 90% of quarterly objectives through clear goal alignment and regular tracking;
  • Developed and implemented a Technical Roadmap, delivering scalable solutions and aligning projects with long-term strategic goals;
  • Standardized and optimized application development processes, increasing efficiency and consistency across platforms;
  • Designed and deployed a comprehensive Design System for Android and iOS, reducing development time by 70% and ensuring a unified user experience;
  • Implemented code quality tools like Codebeat, improving code maintainability and stability, which contributed to a 200% increase in daily active users;
  • Supported team members in publishing technical articles on the corporate blog, enhancing knowledge sharing and showcasing team expertise;
  • Created and improved automation and monitoring systems, enhancing transparency, quality metrics, and process reliability;
  • Fostered cross-departmental collaboration, ensuring seamless product delivery and alignment with business goals.
Project Tech stack:
Swift
RxSwift
MVVM
WebSocket
Realm
UIKit
GCD
JSON
SwiftUI
Software Development Manager / Tech Lead
Sep 2018 - Nov 20191 year 2 months
Project Overview

A mobile trading app that monitors market movement in real-time using cutting-edge charting tools and indicators.

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Responsibilities:
  • Built and scaled an R&D team from 4 to 45 developers;
  • Implemented Personal Development Plans (PDPs), fostering team growth and aligning goals with organizational objectives;
  • Designed a Technical Roadmap, aligning technical strategies with the company’s long-term vision;
  • Established a streamlined Delivery Process, doubling development speed and improving workflow efficiency;
  • Partnered with clients to align on strategic priorities, roadmap development, and product enhancements;
  • Led all project phases, ensuring adherence to best practices and timely delivery;
  • Analyzed customer feedback to create actionable recommendations, improving platform functionality and user satisfaction.
Project Tech stack:
MVP
WebSocket
GCD
JSON
UIKit
Vue.js
React
Node.js
Java
iOS
Android
iOS Developer / Team Lead / Co-Founder
Aug 2016 - Dec 20182 years 4 months
Project Overview

The app provides direct communications with influencers and specialists in any domain.

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Responsibilities:
  • Led mobile development team;
  • Was involved in every project phase, from approving new features to writing code that supports iOS 10 - 12;
  • Wrote task lists for the iOS developers;
  • Did task estimations;
  • Collaborated with the design and development team on direction and user experience;
  • Developed and debugged via Xcode and Instruments;
  • Improved, refactored, and stabilized the existing framework.
Project Tech stack:
Swift
OOP
POP
VIP
RESTful
Local and Remote Push Notifications
GCD
JSON
WebSocket
SSO connect (FB
VK)
FB- Analytics
iOS Developer
Sep 2017 - Oct 20181 year 1 month
Project Overview

This system provides a vast range of communication services, from push-to-talk (PTT) to other advanced mobile solutions, all of which focus on enabling instant and group-based communications.

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Responsibilities:
  • Collected customer feedback;
  • Was involved in every project phase, from approving new features to writing code that supports iOS 8 - 10;
  • Developed recommendations and requirements to enhance framework functionalities;
  • Wrote task lists for the iOS developers;
  • Collaborated with the design and development team on direction and user experience;
  • Developed and debugged via Xcode and Instruments;
  • Improved, refactored, and stabilized the existing framework;
  • Provided test apps and separated frameworks.
Project Tech stack:
Swift
OOP
POP
RESTful
Local and Remote Push Notifications
GCD
JSON
creating framework
PTT.
iOS Developer
Dec 2014 - Sep 20183 years 8 months
Project Overview

Advertising SDK

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Responsibilities:
  • Developed a library used by millions globally, enhancing platform scalability and user engagement;
  • Standardized development processes, ensuring efficiency, reliability, and adherence to best practices;
  • Refactored and improved applications, enhancing scalability, reliability, and maintainability;
  • Built web bridges to integrate JS WebView mechanisms with Swift, enabling dynamic interactions;
  • Led backlog planning and task prioritization, ensuring timely and efficient project delivery;
  • Collaborated with cross-functional teams to deliver high-quality products aligned with business goals;
  • Translated customer feedback into actionable improvements, enhancing functionality and user satisfaction.
Project Tech stack:
iOS
Objective C
Web API
iOS Developer/Team Lead
Apr 2016 - Aug 20171 year 4 months
Project Overview

The app helps to book appointments with a doctor, notify people by location if something could damage their health, and find nearby hospitals.

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Responsibilities:
  • Collected customer feedback
  • Led mobile development team
  • Created task lists for the iOS developers
  • Collaborated with design and development team on the direction and user experience
  • Developed new features and debugged via Xcode and Instruments
  • Improved, refactored, and stabilized the existing framework
  • Developed recommendations and requirements to enhance application functionalities
Project Tech stack:
Objective-C
Swift
OOP
RESTful
Local
Push Notifications
MapBox
SSO connect
(FB
GoogleAPI
Twitter)
WebView
GCD

Education

2012
International Economics.
Master's

Languages

Ukrainian
Advanced
English
Advanced

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