Antonio Bello
Mentor
(8 reviews)
US$15.00
For every 15 mins
10
Sessions/Jobs
ABOUT ME
iOS and Backend Software Engineer
iOS and Backend Software Engineer
Highly experienced (27 years), passionate, self-motivated, result-driven, and versatile IT professional specializing in translating business requirements into software solutions, covering the entire software development life cycle, either autonomously, as part of a team, and as a team leader, using and quickly adapting to any development methodology, programming language, framework, and technology.
Since 2012 working primarily on iOS, and more generally on the Apple ecosystem, with occasional Android and backend work. But always open to new challenges, regardless of the technologies.
Italian, English
Warsaw (+02:00)
Joined March 2015
EXPERTISE
10 years experience
Started with iOS development by creating a digital business card app, which I developed from scratch to AppStore. Since then I've been in...
Started with iOS development by creating a digital business card app, which I developed from scratch to AppStore. Since then I've been involved in several other apps development, either as individual developer or part of a remote team.
Playing with Swift since it's been announced, and actively using it on all of the projects I'm currently working on.
10 years experience
Playing with Swift since it's been announced at WWDC 2014
Playing with Swift since it's been announced at WWDC 2014
5 years experience
10 years experience
10 years experience
10 years experience
10 years experience
REVIEWS FROM CLIENTS
(8 reviews)
Removed User
May 2015
Awesome !
Victor Adu
March 2015
Awesome mentor and a teacher. Very knowledgeable, friendly and patient. Will book again.
Josh Bolduc
March 2015
3 for 3, thanks again!
Josh Bolduc
March 2015
Thanks again for your help and for another great session!
Josh Bolduc
March 2015
Greatest help I've ever received on here, 10/10, I'd highly recommend Antonio to anyone!
Phil Warton
March 2015
Antonio was very helpful. He is very skilled and also forthcoming about what he does not know. In any case he was very helpful.
SOCIAL PRESENCE
DataGridViewSample
Sample code for the article "DataGridView: how to bind nested objects"
C#
13
5
wormer
Swift
3
2
66358 Reputation
10
136
159
Questions about function notation in Swift
When defining parameters for a function or method, besides the type, each parameter must have a local name, which identifies the name of the variable...
Swift: delete all array elements
Taking for granted that @vadian's answer is the solution, I would just want to point out that your code doesn't work.
First of all, array indexes are...
how to count specific items in array in swift
A fast, compact and elegant way to do it is by using the reduce method:
let count = OSes.reduce(0) { $1 == "Android" ? $0 + 1 : $0 }
It's more compact...
EMPLOYMENTS
Frontend Engineer
Asette.ai
2025-04-01-Present
Software Engineer - Freelancer
Elapsus
2004-01-01-Present
Self-employed, IT freelancer and consultant, working remotely from Poland.
Worked with a diverse range of clients worldwide, on dozens o...
Self-employed, IT freelancer and consultant, working remotely from Poland.
Worked with a diverse range of clients worldwide, on dozens of projects, using various languages, platforms, and technologies, ranging from social apps to digital health solutions, interactive designers, banner management systems, and messaging solutions.
SQL
Concurrent Programming
Multitasking
View more
SQL
Concurrent Programming
Multitasking
iOS
RxSwift
Mobile App Development
Technical Design
Mobile game design
View more
Staff Full Stack Engineer
Lighten
2024-06-01-2025-03-01
TypeScript
TypeScript
PROJECTS
Ubersimple Check In System
2013
Create a solution for event checkins that allowed for:
1) Manage registered guests AND walk-ins effectively
2) Instant Name Badge print...
Create a solution for event checkins that allowed for:
1) Manage registered guests AND walk-ins effectively
2) Instant Name Badge printing
3) Provide Reporting and Analytics
4) Portable, Low cost & Scalable
Ubersimple Check In system is the fastest and simplest check in system.
Touch a letter in your name - tap your badge to check in print, and receive speakers notes all instantly.
The system is self contained and even works offline at events where wifi is not cooperating.
Designed to be fast, portable, "and fun", guests have raved about our check in system stating its the simplest they've ever seen!
View more
View more
AppPack
2012
A modern way to collect and share business information using mobile phones and tablets that creates an inbound marketing system for profe...
A modern way to collect and share business information using mobile phones and tablets that creates an inbound marketing system for professionals to use with clients and events, meetings, or in person.
View more
View more