Raya Deleva

Front-end Developer

Raya Deleva


Sofia, Bulgaria
+359 899 82 5678

I have 10+ years of experience in developing websites of different kind and size.

Work Experience

Senior Front-end Developer

February 2018 – present

I work now in a startup company on an app, but still no public information is available.

Freelance Front-end Developer

February 2017 – January 2018

Work on different projects / startups and helping with front-end related work.

Senior Front-end Developer

January 2010 – January 2017 (7 years)

My longest work expereince is in Telerik. I spent there 9 years. Telerik was an ever changing place where you can't be bored. I met great professionals, I learned a lot about technology and life.

I started in the so called Web Team, we were working on the company websites and an internal CRM application. We were the team that was dogfooding the company products as well. I worked a lot with Sitefinity CMS, UI for ASP.NET, Kendo UI and others.

During the years I worked on www.telerik.com and www.progress.com mainly but not only.

Front-end Developer

January 2008 – January 2010 (2 years)

Web Developer

August 2006 – October 2007 (1 year 3 months)

Worked in a Marketing team on the company web assets using PHP, MySQL, HTML, CSS, JS.


February 2006 - August 2006 (8 months)

Worked on various projects, static and dynamic websites, using PHP, MySQL, HTML, CSS, JS. For several years I worked on freelance projects and clients like EU Space Program "FP7-SPACE", Bulgarian National Film Archive, Mihail Kamberov, Loralab, nakladkibg.com and others.

Web Developer

March 2005 – February 2006 (1 year)

Worked on various projects, static and dynamic websites, using PHP, MySQL, HTML, CSS and Vanilla JS. We were implementing a custom PHP CMS that was used only for specific customers websites. I was also doing customer trainings on how to work with the CMS.

Junior Web Developer

July 2004 – February 2005 (8 months)

Developed alone with some guidance the first version of cars.bg using PHP, MySQL, HTML, CSS and Vanilla JS.

Skill Set

Git, TFS, JavaScript, jQuery, SEO, HTML5, SVG, CSS, LESS, SASS, Stylus, PHP, Adobe Creative Suite.


Design - I have good taste for design, I feel comfortable to take small design decisions. Through the years I've worked with great graphic designers and that definitely changed my design point of view.

Backend and DBs - I work as a FE developer for years but I've always been interested in the whole picture and how the backend of a project works.

DevOps - I've always been responsible to deliver alone my work to the live environments, in the early years via FTP :-) and the past several years with deployment tools, I also have some experience with Jenkins.

Performance - I've always tried to follow the best practices for speeding up the websites, of course depending on the circumstances.

Testing - I have of course experience in testing and cross-browser and devices compatibility issues.

Content strategy - I have experience with data-driven product development and tools like Google Analytics, Optimizely for A/B testing, etc.


Sofia University "St. Kliment Ohridski"

Master's Programme "Distributed Systems and Mobile Technologies"
Started Nov, 2007 - took all classes, didn't finish it

University of National and World Economy

Bachelor's Programme "Business Informatics"
2000 - 2005

Dr. Ivan Bogorov Foreign Language High School, Dimitrovgrad

Speciality Profile English language
1995 - 2000


My native language is Bulgarian and I also speak English.

Trainings / Conferences Attended

Front-Trends, Warsaw, Poland

May, 2016

DotJS & DotCSS, Paris, France

December, 2015

An Event Apart, Washington DC, USA

September, 2010

Cisco Network Academy Program Course, CCNA

January - September, 2004

Other Facts

I have one blond kid.

I own a drivers license and I love to drive.

I own a "hidden" culinary blog.

I exercise at home, I love plank.

I'm interested in photography and I hate bad photos.

I go to Greece on vacation every year.

Apps that changed my life in the last few years: Spotify, Toshl