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$50 USD / hour
Flag of POLAND
skierniewice, poland
$50 USD / hour
It's currently 5:05 AM here
Joined February 2, 2012
11 Recommendations

Rafal R.

@re4ct0r

5.0 (104 reviews)
8.6
8.6
$50 USD / hour
Flag of POLAND
skierniewice, poland
$50 USD / hour
99%
Jobs Completed
100%
On Budget
100%
On Time
45%
Repeat Hire Rate

Technical Lead

I am a software developer with 12 years of commercial programming and team leading experience. I am interested in working on very complex projects involving many different technologies. I am very good at figuring out how such projects work and understanding what needs to be done even if previous developers are long gone, there is no documentation and it is not possible or very hard to find a developer who knows all technologies being involved in a project. I can lead existing and new developers in such projects but also code myself. I can architect complex projects from scratch. I know how to create long term plans of execution to achieve a specific goal and then to actually execute that plan. I am very good at extracting requirements from clients who usually think in very abstract and general ways and converting them to a format that developers can actually work with. My main skills include: ✓ Android apps ✓ iOS apps ✓ Deep learning and Google TensorFlow ✓ Crypto platforms: BitCoin, Ethereum, EOS, NEM ✓ PHP/Python/JAVA backends ✓ Amazon Web Services and complex server infrastructure administration ✓ Spring Framework ✓ Pivotal Cloud Foundry ✓ Augmented Reality ✓ Team leading
Freelancer Android Developers Poland

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Portfolio Items

Parental control application. Development of android application, web dashboard, backend. Complex database administration and server infrastructure administration.
MyMobileWatchdog
An application for creating a perfect passport photo. iOS application, Android application, backend, artificial neural networks for image analysis.
Passport Photo Creator
Deals browsing and payment application.
Mobile Gullak
Android coupon browser with many various functions.
Clip or Skip
iOS & Android application for performing networking tests in various ways
GoMobile Network Test
iOS & Android application for performing networking tests in various ways
GoMobile Network Test
An app for browsing and searching tv series. After finding the right episode it allows watching it on your mobile device.
Watchseries
An app for browsing and searching tv series. After finding the right episode it allows watching it on your mobile device.
Watchseries
An app for browsing and searching tv series. After finding the right episode it allows watching it on your mobile device.
Watchseries

Reviews

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Showing 1 - 5 out of 50+ reviews
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5.0
[SEALED]
This is an old project which I am closing out.
J
Flag of Penn D. @jobs4ekpen
4 years ago
5.0
$30,060.00 USD
Five Stars is not enough! re4ct0r consistently exceeds our expectations. He has a tremendous ability to understand BOTH the business requirement as well as the technical task. Because of this re4ct0r raises pertinent issues that shape the strategic direction of the project and then executes on the agreed solution in the most efficient way. He does in 1 hour what it takes lesser freelancers to do in a day (if at all). Our highest endorsement and true appreciation goes to re4ct0r!
PHP Mobile App Development Android MySQL C++ Programming
+1 more
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Flag of Scott F. @DevelopmentCo
4 years ago
5.0
$19,020.00 USD
There is no better freelancer than re4ct0r. A true professional with the rare combination of top level skills, quick work, great communication, creative and strategic suggestions, and unquestionable integrity. Together it all equals the best value on freelancer.com. This is why we have already begun another project with re4ct0r.
PHP Mobile App Development Android MySQL C++ Programming
+1 more
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Flag of Scott F. @DevelopmentCo
4 years ago
5.0
$3,980.00 USD
re4ct0r always deliver a quality project. I have consistently rehired him for the knowledge, skills and high quality work. [05 July, 2016] Rafal is the type of Freelancer that makes the platform work. Good quality work every time. [19 July, 2016] re4ct0r has produced another excellent result. [17 August, 2016] Re4ct0r always provides a great result.
PHP Mobile App Development Android MySQL C++ Programming
+1 more
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Flag of Mike W. @MikeW68
5 years ago
5.0
$20,400.00 USD
re4ct0r is an exceptionally skilled developer, an excellent communicator (his English is better than most Americans!), a thought leader, self-motivated, problem solver, able to prioritize and manage to deadlines. I have worked with re4ct0r every day for the last 8 months on an ongoing project and have been continuously impressed with his professionalism and commitment to delivering excellent work. Re4ct0r has earned our highest recommendation. [05 July, 2016] An exceptional job with a complex mission. We are happy to consider re4ct0r part of our team and will be working with him again and again. [18 July, 2016] Fantastic communicator and accomplishes tasks quickly
PHP Mobile App Development Android MySQL C++ Programming
+1 more
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Flag of Scott F. @DevelopmentCo
5 years ago

Experience

Technical Lead

Ruvato, LLC
Mar 2018 - Present
Technical Lead

Freelance Software Engineer

Freelancer.com
May 2012 - Feb 2018 (5 years, 9 months)
Android, iOS, PHP, Python, JAVA, C, C++, AWS, TensorFlow, Team Leading and many other things.

Software Engineer

Mobica Ltd.
Jun 2011 - Mar 2012 (9 months, 1 day)
Graphics driver for mobile devices implementation. The driver was designed to run on Linux and Android platform. Involvement in tasks related to various parts and layers was necessary.

Education

MSCS

Uniwersytet łódzki, 2005 - 2010
(5 years)

Qualifications

Highest possible scholarship for 4 years in a row.

University of Lodz
2010
I received highest possible scholarship for 4 years in a row for outstanding academic performance. I was one of the top students.

Publications

no publications

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Verifications

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Certifications

numeracy_1.png Basic Numeracy 1 100% game-physics-1.png Physics for Game Developers 1 95% freelancer_orientation.png Freelancer Orientation 1 85% java_2.png Java 2 85% android_3.png Android Development 3 85%

Top Skills

Android 109 Mobile App Development 79 PHP 46 Java 2
iPhone
2

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