Käyttäjän heltleo59 profiilikuva
@heltleo59
Maan China lippu Dandong City, China
Jäsen alkaen 4. syyskuuta 2017
1 Suositukset

heltleo59

Online-tilassa Offline-tilassa
"Success usually comes to those who are too busy to be looking for it." "There are no secrets to success. It is the result of preparation, hard work, and learning from failure." As a professional full stack mobile/web developer with over 10 years of experience in Web and Mobile(iOS/Android) application development. ★ Experiences and Skill set I have. ● Native mobile app development: Swift4/3, Objective-C, Java ● Hybrid mobile app development: React Native, ionic ● WebService and Backend API development: Ruby on Rails, Node.js, Python, PHP, Golang ● Web Frontend development: Javascript, Bootstrap, HTML, CSS, Angular.js, React.js, Vue.js... ● Database: MongoDB, MySQL, PostgreSQL, NoSQL, FireStore ● Deployment: AWS, Azure, Heroku, iCloud, Google Cloud, DigitalOcean Please feel free to contact me at any time. Always Welcome!
$55 USD/hr
47 arvostelua
7.3
  • 98%Suoritetut työtehtävät
  • 97%Budjetin mukaisesti
  • 99%Ajallaan
  • 17%Uudelleenpalkkaamisaste

Portfolio

Viimeaikaiset arvostelut

  • käyttäjän grimm kuva Stock Ticker Mac App -- 3 $250.00 USD

    “I won't hire him again. Had to repeat a lot of stuff over and over again. He didn't seem to test the software before sending it to me. He uploaded the app to my account 5 to 6 times before it was approved. Seems like he wasn't really following their instruction either. Job got done, but it was a hassle.”

  • käyttäjän Romanrgold kuva React and rails developer for website $3333.00 USD

    “Amazing expert in Rails !!!”

  • käyttäjän Romanrgold kuva Flutter developer to rewrite existing app in Flutter $4444.00 USD

    “Once again we get results and functionality we need to keep our project going.”

  • käyttäjän zyondymonds kuva Project for Zhang H. $281.10 USD

    “Thanks for all your help. [22 September, 2018] Thanks for all you work Zhang. Looking forward to working with you in the future”

  • käyttäjän waqaslone1 kuva Expert iOS Objective C Developer needed to fix iPAD App Remotely $49.00 USD

    “An Ideal worker for anyone. Zhang was able to understand and fix the error right away. Would soon love to work again with him. Thanks for your help!”

  • käyttäjän cideas kuva Ionic App Navigation fixes $55.00 USD

    “Quick programmer, will get your job done but a word of caution - ensure you describe your requirement very clearly to him. He is particular about the project description before he begins.”

Kokemus

Lead Software Developer

Mar 2014 - Dec 2018 (4 years)

Worked at small outsourcing company as lead software developer.

Senior Web Developer

Jun 2011 - Mar 2015 (3 years)

As a professional full stack expert, I've developed many simple and complex websites over 2 years. Also Seioglobal was good place which I start to learn AI, ML and Bot.

Mobile Application Developer

Jun 2006 - Aug 2011 (5 years)

I have learned a lot of acknowledgements of iOS/Android app development and have good experiences of UI/UX design and BACKEND

Koulutus

Master of Computer Applications - MCA, Computer Programming, Specific Applications

2000 - 2005 (5 years)

Todistukset

  • Preferred Freelancer Program SLA
    92%
  • Ruby on Rails
    85%
  • US English Level 1
    75%

Varmennukset

  • Facebook yhdistetty
  • Suositeltu freelancer
  • Maksutapa varmennettu
  • Puhelin varmennettu
  • Henkilöllisyys varmennettu
  • Sähköposti varmennettu

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