Banner Image

All Services

Programming & Development

Professional Mobile Developer

I have developed various apps such as Social networking & lifestyle(Tinder style dating, chatting, sharing), Food & drink(Restaurant), Health & fitness, Travel(geolocation), Business(shopping), Sports, Photo & video, Medical, Weather, Booking and etc.

I am an intelligent and experienced mobile developer. Software development is my greatest skill and I have an incredible attention to detail and perseverance in getting the job done, and done well.

During the last seven years of professional working experience I gained a full understanding of the life cycle of software development.

I especially enjoy studying new technologies, programming and implementing solutions- using the existing APIs and frameworks or developing solutions from scratch. I am able to work as a part of a team or deliver solutions independently. Development of business Web and hybrid Mobile applications using Open Source technologies is the area where I am intensively working. Further, I have a good knowledge in Phonegap with packaging and signing native mobile iOS and Android applications and with automating build process.

In addition to client-side development I also completely understand the three tier Web application architecture.

As a result I have professional experience and knowledge in developing server-side Web application using Java technology. More specifically it relates to Spring (MVC, WebFlow, Security, Transactions) for the development of the middle tier, JPA, Hibernate platforms for communicating with the database and also PLSQL / SQL to perform queries on Oracle, PostgreSLQ and MySQL databases.

The key strengths that I possess for success are that I strive for continued excellence and investing in knowledge. I'm a dynamic, optimistic and a responsible person, who likes to face challenges.

My primary skills:
- PHP (I follow PSR Coding Standard)
- Yii since 2009, Yii2
- JavaScript (and sometimes CoffeeScript)
- ExtJS from 3 to 6 version
- Backbone.js
- jQuery

Skills & Expertise

AndroidAPI DevelopmentBackbone jsiOSJavaJavaScriptjQueryMobileMobile ApplicationsMySQLObjective-CPHPPL/SQLProgrammingSoftware DevelopmentSpring FrameworkSQLSwiftWeb Development

Related Work Collections

1 Reviews for This Service

  • Frank 325 says,

    Karel has provided me with great work and met the deadline for this milestone

    for Social App on Jan 30, 2018