Profile image of heltleo59
@heltleo59
Flag of China Dandong City, China
Member since September 3, 2017
1 Recommendations

heltleo59

Online Offline
"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
44 reviews
7.1
  • 98%Jobs Completed
  • 96%On Budget
  • 100%On Time
  • 18%Repeat Hire Rate

Portfolio

Recent Reviews

  • image of zyondymonds 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”

  • image of waqaslone1 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!”

  • image of cideas 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.”

  • image of SportSnapShare Project for Zhang H. €220.00 EUR

    “Very good communication, delivered on time. It was nice working with him!”

  • image of Carl E. React Native iOS - Make user sign in once $50.00 USD

    “he fixed my problem fast and with clever solutions ! recommend.”

  • image of gbesler JSON Consumer App (WebAPI) $130.00 USD

    “Very professional and responsible developer. He delivered the project on time and budget. He is also communicating very well and he is kind. He is mostly available and not creating any problems. I will definitely work with him again and would recommend to work with him to everyone.”

Experience

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

Education

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

2000 - 2005 (5 years)

Certifications

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

Verifications

  • Facebook Connected
  • Preferred Freelancer
  • Payment Verified
  • Phone Verified
  • Identity Verified
  • Email Verified

My Top Skills

Browse Similar Freelancers