Lukas is available for hire
Hire LukasLukas Liesis
Verified Expert in Engineering
WebSockets Developer
Vilnius, Vilnius County, Lithuania
Toptal member since May 6, 2016
Bio
Lukas is a skilled developer with 20 years of experience on projects with up to 15 million users. He's passionate about React, React Native, MongoDB, web sockets, and Material Design. He has experience with DynamoDB, SQL, MongoDB, and RESTful and socket-based APIs. He's used and created custom APIs and can build software from the ground up.
Portfolio
Wristband E-shop
Material UI, Firebase, React
ArcChat.com
WebSockets, RESTful Development, REST APIs, Git, PayPal API, MongoDB, NGINX...
LHM Group
React Native
Experience
- RESTful Development - 15 years
- REST APIs - 15 years
- JavaScript - 15 years
- Node.js - 8 years
- React - 8 years
- Google Material Design - 7 years
- WebSockets - 7 years
- MongoDB - 6 years
Availability
Part-time
Preferred Environment
React, Node.js, GitHub, TypeScript, Amazon Web Services (AWS)
The most amazing...
...thing I've built was in cooperation with ex-Googlers and scientists from NASA; it was a part of a core for services used by 15+ million users globally.
Work Experience
Software Engineer
2016 - 2016
Wristband E-shop
- Developed a single-page site to choose, order, and follow orders. Integrated with payment APIs.
Technologies: Material UI, Firebase, React
React Developer
2015 - 2016
ArcChat.com
- Took on a full-stack challenge to minimize this site's technology stack down to one programming language (JavaScript). JS is used all the way through, from server to client and database and even for most CSS. I also used material-design specifications to create an easy-to-use UI. With React.js, I was so much more productive than with PHP's MVC style frameworks. It was a pleasure to move out of PHP world.
- Completed the project solo in three months.
- Built a native Android app with React.
Technologies: WebSockets, REST APIs, RESTful Development, Git, PayPal API, MongoDB, NGINX, Material Design, Node.js, React Native, React
Android Developer (React Native)
2015 - 2015
LHM Group
- Built a React Native app for Android where you can preview a house project and order from LHM. The challenge was to build a React Native app for Android while it was released only for 1-2 weeks for public usage outside of Facebook.
Technologies: React Native
Software Engineer
2012 - 2015
Hostinger International
- Hired as 5th engineer at Hostinger to help develop the Hostinger and Youhosting network (15,000,000+ users) with Zend Framework and Doctrine. Developed on the full-stack, including back-end and front-end.
- Developed internal software for users, staff members, and invoice management.
- Redid and optimized the main home page.
- Created an invoice management system for internal usage from the ground up. Added a lot of new futures for Hostinger's network management system.
Technologies: REST APIs, RESTful Development, Zend Framework, PHP, MySQL, JavaScript
Developer/SEO Consultant/Freelancer
2012 - 2013
VEGE
- Built VEGE.ru's website. It is an official VEGE website to represent the company for clients from Russia, Ukraine, and other Russian speakers.
Technologies: PHP, SQL, Apache, Joomla
SEO Consultant, Freelancer for eCommerce
2011 - 2013
Metalo Amžius
- Improved SEO to increase online sales. Remade the administration panel to make it easier to use. Taught administrators to use the CMS. Made all required updates to content, layout, etc.
- Used PrestaShop to do the biggest part of the job.
- Synced the item status with old software that manages item availability.
Technologies: Virtual Private Servers, Twilio Sync API, PrestaShop
Experience
Trafikito.com
I always wanted to monitor output of any command. With Trafikito I can. You can monitor the output of any command and execute an API call when stuff happens.
Command output monitoring service deployed on high-quality global AWS Infrastructure—three edges, global DB tables, and load-balancing.
Command output monitoring service deployed on high-quality global AWS Infrastructure—three edges, global DB tables, and load-balancing.
Free-Templates.lt
A fully automatic website with pre-made content. This system has tens of thousands of templates ready to publish. The system grabs a template archive, analyzes it, makes some changes, and publishes. It has search by hue.
Squirrel-Host.com
Squirrel-Host.com is a hosting solution. Here, you can register a free account and get hosting for your website. Check out all the great features on the Squirrel-Host.com page.
News-Flow
What was challenging in this project is the amount of data. I developed the crawler, which collected news from around the net and published them on a news-flow site. Used a SQL database.
Manualai.lt
Manualai.it is an educational project to help people in Lithuania learn about IT. There are several connected sites with articles about coding, design, and a forum for help and support. Done with Joomla, SMF forum, and some custom components for those systems.
AutoMouser
Built with the C family. I needed an auto mouse clicker and didn't found exactly what I was looking for, so I learned some .NET code and made it myself. It was my second app with .NET framework and C family languages. It was interesting to move out of my comfort zone of web development and try building something for Windows OS. AutoMouser is quite a popular tool now with ~1500 weekly downloads.
Gerda Photography
Together with my wife, we are organizing professional photo-shoots. We shoot private sessions or big events.
We are devoted to feelings, emotions, and real life. People love our photographs because of the cosiness, lighting, and authentic decorations. Our photography is 70% psychology, 20% design, and 10% technique.
We are devoted to feelings, emotions, and real life. People love our photographs because of the cosiness, lighting, and authentic decorations. Our photography is 70% psychology, 20% design, and 10% technique.
React Examples Repository
https://github.com/liesislukas/ReactJs-boilerplate-and-examplesA GitHub repository where I create example apps with React. By teaching, we learn.
Education
2012 - 2014
Master's Degree in Physics (Environmental Management)
Vytautas Magnus University - Lithuania
2010 - 2012
Secondary B.S. Studies Degree in Business and Applied Informatics
Vytautas Magnus University - Lithuania
2008 - 2012
Bachelor of Science (B.S.) Degree in Physics (Energetic)
Vytautas Magnus University - Lithuania
Skills
Libraries/APIs
Node.js, REST APIs, jQuery, React, PayPal API, Twilio Sync API
Tools
Adobe Photoshop, Adobe Lightroom, NGINX, Git, GitHub, Apache, PrestaShop, Adobe Illustrator
Languages
JavaScript, CSS, HTML, SQL, PHP, TypeScript
Frameworks
Material UI, Flux, React Native, Zend Framework, .NET
Paradigms
RESTful Development, Unit Testing
Platforms
MacOS, Joomla, Firebase, Amazon Web Services (AWS)
Storage
Amazon DynamoDB, MongoDB, MySQL
Other
Google Material Design, WebSockets, Freelancing, ESLint, Ubuntu Server, Usability, SVG, Material Design, Virtual Private Servers
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