Jan Elznic

Software developer

Always listen to experts. The'll tell you
what can't be done and why. Then do it.
(Robert A. Heinlein)

About me

My name is Jan Elznic, I am 27 years old and I am doing software development for web and mobile platforms. My specialization is web frontend applications (HTML5, CSS3 and JavaScript). My first page I wrote in 1998. Ten years later (2008), I officially started my own business. I worked for several years as a freelancer, tried a full-time job for Czech and also some other European and American startups, medium-sized companies and big corporations. More about my professional career you can learn from my resumé (CV).

In recent years I'm also interested in web usability (User eXperience) and the development of native mobile applications for Android, iOS, Windows Phone and Firefox OS. I love games of all kinds, Linux and Open Source - a few of my contributions to the world of open source can be found on my GitHub.

My favourite activities at spare time: reading, time management, travel, cycling and skiing, theater, developer meetings.

Résumé (PDF doc)

Portfolio

…what stuff I do…

Web frontend
- HTML(5), CSS(3), JavaScript (ECMAScript6)
- Frameworks (jQuery, AngularJS, React, ...)
- Automation tools (LESS/SASS, Grunt/Gulp)
- Accessibility (WAI-ARIA standards)
- New recommendations (W3C, WHATWG)
Backend applications development
- PHP (+ frameworks nette, Yii, ...)
- Python, node.js, C/C++
- Relational Databases (MySQL/MariaDB, ...)
- Security (XSS, CSRF, SQL injection)
Server administration
- Linux servers administration (Debian esp.)
- Networks, TCP/IP, DNS, loadbalancing
- Webservers - Apache2, Nginx
- VPN - OpenVPN, PPP(TP)
- shell - Bash scripts
Graphics
- Drawing wireframes and prototyping
- Creating graphic design (Adobe PS)
- Analysis of usability and user testing
- Web banners in Adobe Flash, ActionScript
- Design of print, corporate identity
Analytics, SEO and marketing
- Google Analytics & Webmasters Tools
- Search Engine Optimization (SEO)
- PPC campaigns management (AdWords, Sklik)
- CRM, sales, B2B a B2C marketing
- PR, medial plans & social networks
Mobile apps and games
- Experimenting and learning…
- HTML5 games development (JavaScript, Canvas, Websockets, WebGL)
- Cocos2D, Firefox OS, Unity3D, Flash
- Educational apps & e-learning

References

Some clients from recent years:

Some projects:

EMTC Career web
- Client: EMTC - Czech, a.s.
- Scope: Backend, Responsive template
- Technologies: PHP5, HTML5, CSS3
- Realization: autumn 2014
- Estimation: about 64 hours
http://kariera.emtc.cz
HTML5 Lipa Bear game
- Client: Lipa Learning, s.r.o.
- Scope: Porting for web browsers
- Technologies: HTML5, CSS3, JS
- Realization: summer 2014
- Estimation: about 100 hours
Demo is not publicly available
Responsive web Lipa Learning
- Client: Lipa Learning s.r.o.
- Scope: Responsive template (mobile, tablet)
- Technologies: HTML5, CSS3, nette/latte
- Realization: spring 2014
- Estimation: about 40 hours
http://www.lipalearning.com
Plánování financí.cz (Finance)
- Client: Stanislav Soukup
- Scope: graphics, CMS, template, webhosting
- Technologies: PHP5, MySQL, HTML5, CSS3
- Realization: spring 2013
- Estimation: about 100 hours
http://www.planovanifinanci.cz
Seznam skokanů by Seznam.cz
- Client: Seznam.cz, a.s.
- Scope: Backend, Frontend
- Technologies: PHP, HTML, CSS, JS
- Realization: 2011
- Estimation: about 40 hours
http://skokani.seznam.cz
CMS Easy Admin System 3
- Client: my own project
- Scope: graphics, backend, frontend
- Technologies: PHP, MySQL, HTML, CSS, JS
- Realization: 2012
- Estimation: 1 month
demo not available
E-learning dictionary app
- Client: Seznam.cz, a.s.
- Scope: Frontend
- Technologies: HTML, CSS, JS
- Realization: 2011
- Estimation: -
http://slovnik.seznam.cz/learn