Henryk Apostel

Henryk Apostel

$30/hr
Senior React Native/JS, Node.js, iOS/Android developer
Reply rate:
21.21%
Availability:
Full-time (40 hrs/wk)
Age:
36 years old
Location:
Warsaw, Warsaw, Poland
Experience:
7 years
Henryk Apostel Summary I’ve started React Native development from 2 years ago - it’s announced on Jan 2015(for iOS) and on Oct 2015(for Android). Also, I've been developing ReactJS for 3 years, built several large-scale web apps, customized components, web admin dashboards and have enough knowledge of WebPack, ESLint, Babel, Yarn, Npm, Gulp, Grunt, etc I am specialised in ReactJS, React-Native, GraphQL/Relay/Apollo, VueJS, Webix, Redux/Mobx - I have used this library ever since its initial releases since 2015. I focus on mobile front-end development with React-Native framework and web frontend development with React.js/Redux, HTML5, CSS3, Bootstrap, SASS/LESS, Jade, JavaScript, jQuery, and other JavaScript frameworks & libraries. I make it my goal to create software with the user in mind, creating applications with a useable and intuitive user interface experience. I also understand the importance of creating highly readable and easily maintainable source code. I am constantly striving to learn new technologies and look to ways to better myself in this rapidly changing industry. Work Experience March 2015 – Present Mobile Application | Individual Developer − Back end development with popular frameworks like Node.js, AWS and Firebase. − Integrated RESTful and SOAP apis with React Native, iOS and Android native front ends. − Published both iOS and Android applications while establishing framework for future platforms. June 2012 – March 2015 Eclipse RCP Developer | WireframeSketcher − Tested and devised solutions for enhancing performance of existing applications. − Provided technical assistance to team to design, troubleshoot and maintain RCP applications. − Conducted system analysis and technical documentation, and participated in presales activities. − Provided support to the Product Integration team for testing and maintaining effective communication between systems. − Assisted in product enhancement, formulating and actualizing advanced schema definitions and XML transformation. 2010 – 2012 Application Analyst and Developer − Responsible for maintaining, enhancing and developing applications and infrastructure that provide a trading framework. − Analyzed server side infrastructure including function calls for memory management, kernel bypass messaging (point-to-point and multicast), trading and market data protocol design/implementation, implementation of search/sorting algorithms, system redundancy design. − Resolved infrastructure functioning, troubleshooting and performance issues encountered by the trading technology largely through the development and implementation of enhanced sorting and searching algorithms and redesign of the rollout/deployment mechanism. − Developed automated test harnesses for volume and latency stress testing. − Provided coding, data propagation and validation procedures for technology platforms. Projects July 2015 – December 2015 Art Selling System | ArtLoupe Development language: Objective-c, Java Development software: Xcode, Eclipse Back-end: ArtLoupe back-end service (ASP.Net) Social sharing: facebook, twitter, linkedin, google+, pinterest, ebay, etsy Payment integration: paypal Url: https://itunes.apple.com/us/app/artloupe-buy-and-sell-fineart/id-?ls=1&mt=8 https://play.google.com/store/apps/details?id=com.artloupe November 2015 – March 2016 Sell Your Car For More | TRED Development language: Java, Objective-C, Javascript Framework: React Native Development software: Xcode, Android Studio, WebStorm Back-end: Node.js Payment integration: Knet, Stripe, Paypal Url: https://itunes.apple.com/us/app/tred-sell-your-car-freecarfax/id-?mt=8 https://play.google.com/store/apps/details?id=com.tredmobile&hl=en September 2015 – March 2016 Liftango Development language: Objective-C, Java, Javascript Framework: React Native Development software: Xcode, Android Studio, WebStorm Back-end: Amazone Web Service Payment integration: Paypal Url: https://itunes.apple.com/au/app/liftango/id-?mt=8 May 2015 – December 2015 Hotel Booking System | Hotwire Development language: Swift, Java Develoment Software: Xcode, Android Studio Back-end: Azure Integration: Stripe payment, Google Maps API Device: iPhone/iPad, Apple Watch, Android Phone Url: https://itunes.apple.com/us/app/hotwire-hotel-deals-carrentals/id-?mt=8 https://play.google.com/store/apps/details?id=com.hotwire.hotels&hl=en March 2016 – September 2016 Ad Pages GO Local Coupons Development language: Objective-C, Java, Javascript Framework: React Native, Google Maps API Back-end: Amazone Web Sevice, Firebase Url: https://www.dropbox.com/s/e86qkgioqo4npqa/AdPagesGo_ReactNative.mp4?dl= 0 https://itunes.apple.com/us/app/ad-pages-go-free-localcoupons/id-?mt=8 https://play.google.com/store/apps/details?id=com.adpages.android&hl=en March 2016 – June 2016 Health & Fitness System | PeerMentor Development language: Objective-C, Java, Javascript Framework: React Native Development software: WebStorm, Xcode, Android Studio Back-end: FeathersJS, Amazone Web Service Url: https://itunes.apple.com/us/app/peermentor/id-?mt=8 July 2016 – November 2016 Food Ordering System | SwipeStation Development language: Objective-C, Java, Javascript Framework: React Native Development software: WebStorm, Xcode, Android Studio Back-end: Node.js Url: https://itunes.apple.com/us/app/push-skip-the-queue/id-?mt=8 https://play.google.com/store/apps/details?id=com.adbibio.push April 2016 – December 2016 Sesh Development language: Objective-C, Java, Javascript Framework: React Native, React.js Development software: WebStorm, Xcode, Android Studio Back-end: Node.js, GraphQL/Relay Url: https://sesh.io/ https://itunes.apple.com/us/app/sesh/id-?mt=8 December 2016 – April 2017 Bookka Development language: Objective-C, Java, Javascript Framework: React Native, React.js Development software: WebStorm, Xcode, Android Studio Back-end: Firebase Url: https://app.bookka.co May 2017 – July 2017 sixwinks Development language: Objective-C, Java, Javascript Framework: React Native Development software: WebStorm, Xcode, Android Studio Back-end: Firebase Url: https://itunes.apple.com/za/app/sixwinks/id-?mt=8 https://play.google.com/store/apps/details?id=com.streamertail.sixwinks&hl=en Technical Skills Programming Languages React Native, React.js, Objective-C; Swift; Java; JavaScript; C/C++; Development Software WebStorm; Xcode; Android Studio; Eclipse; Visual Studio; Git, Bitbucket, Trello, JIRA Technologies iOS Frameworks; Java Frameworks; React Native frameworks, RESTful web services Application/Web Servers Node.js, AWS, Firebase, Azure, GraphQL/Relay/Apollo Platforms Mac OSX, Windows Education Bachelor’s degree, Computer engineering | Technical University of Civil Engineering of Bucharest 2008 – 2011 Personal Information Personal Qualities Mobile User Interface Designing, Backend Computing, Programming, Business Expertise Interests Business side of software development, Human component of development, Mathematics, Foreign languages, Music, Sport(Football, Basketball) Citizenship Poland
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