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Senior Full Stack Web Developer &

Certified WordPress expert at Codeable

Hi there, I’m Lefteris glad to see you here

About me

I’m Lefteris Katmadas, a WordPress developer and computer engineer from Athens, Greece. I have 10 years of professional experience in the web industry. I am a Senior WordPress Developer at BEAT, Certified WordPress Expert at Codeable, and the owner of WebApp Ltd. I specialize in creating pixel-perfect responsive websites from scratch for other businesses, focusing primarily on WordPress theme development.

More than
Years of experience

Epignosis – Senior Frontend Engineer Feb 2023 – Sep 2023 – Senior Frontend Engineer Feb 2023 – Sep 2023

BEAT – Senior Full Stack Developer Jan 2019 – Dec 2022

– Worked with modern web-app frameworks and libraries like React JS, Typescript, Vue JS, Styled Components
– Custom WordPress & Woo themes & plugin development
– Build, extend & deploy websites using WordPress
– Convert UI/UX designs & mocks into cross-browser pixel-
perfect WordPress websites and web apps
– Write high-quality, documented, efficient, and maintainable code using WordPress coding standards
– DevOps, automations, release scripts & GitHub actions
– Integrate with third-party APIs
– Manage tech debt tickets and lead other team members
– Hiring manager, responsible for setting the interview process but also interviewing various prospects
– Communicate with stockholders, prioritize tasks
– Website speed optimization & performance monitoring

Codeable – Certified WordPress Expert (Freelance) Dec 2020 – Present

– WordPress custom theme development
– Build, extend, and deploy websites and microsites using WordPress
– Convert designed UI/UX designs and mocks into cross-browser, custom responsive landing pages in WordPress
– Website speed optimization
– Support – Maintenance

WebApp Creative – Owner / Senior WordPress Engineer Jan 2010 – Present

– Custom WordPress themes and plugins development for high-traffic WordPress sites
– Convert PSDs into custom WordPress Themes or landing pages and microsites
– Troubleshoot and resolve WordPress problems


React JS, JavaScript ES6, Typescript, Vue JS, jQuery, Node JS

Jest, Cypress

Expert in custom pixel-perfect WordPress themes & plugin development

PHP, Blade (Laravel)

SCSS (BEM & BEMIT), Tailwind CSS, Styled Components, Emotion CSS, Chakra UI

Gutenberg Blocks, ACF (Advanced Custom Fields)

Webpack, Gulp, Babel, Laravel Mix

GreenSock Animation Platform (GSAP), ScrollMagic, Rellax JS, Barba JS

Figma, Adobe Photoshop & Illustration, Zeplin, Adobe XD

Agile Methodologies, Scrum, Kunban

Experience with website accessibility 
& Experience with SEO

My portfolio

A selection of some recently completed projects, covering a wide range of design disciplines

Let's Make It Happen

We’re available for commissions and collaborations, and I’m excited to hear from you about new projects.

Hire Me