Jani Kowalski
Full-Stack Developer
Hi, I'm an expert in WP customization, custom fields & post types (ACF, Pods), and I'm experienced in API integrations, site migrations, multisite, LMS (eg. Learndash), marketplaces, and multilingual/multicurrency projects. I make WordPress sites excel in performance (Google Core Web Vitals).
5.0/5
overall rating
355
projects
37
customers
Location
la Pobla de Farnals, Spain
Languages
English, Polish
Member since
15 Oct, 2021
3 years
Typical projects
Customizations, Migrations, Plugin Development
I'm proud to be named among esteemed colleagues: https://www.codeable.io/blog/recognizing-exceptional-wordpress-experts-in-2023/ My experiences include: ------------------------------ Functionality customization - I'm an expert in WordPress/WooCommerce theme/plugin customization including custom post types, fields (ACF and PODS frameworks), and WP blocks. I authored dozens of custom-made plugins. ------------------------------ Custom API integrations ------------------------------ Complex site migrations: WordPress to WordPress and "other system" to WordPress ------------------------------ Performance optimization - I help WP Sites achieve a 90+ PageSpeed Insights mobile score and a GOOD rating in all Core Web Vitals metrics. I provide optimal configuration of the WP Rocket plugin or LiteSpeed Cache plugin. ------------------------------ Multisite installations ------------------------------ Learning Management Systems (Learndash LMS, Tutor LMS) ------------------------------ Marketplaces ------------------------------ Multilingual and multicurrency sites ------------------------------ Animations (JavaScript and CSS) ------------------------------ After 25+ years in business management in different industries, I returned to my original passion: designing and coding systems, that support business and organizational processes. Usually, we achieve prompt and thorough mutual understanding with clients about their needs and often I can contribute to the client's overall vision of the project. Thank you for visiting Codeable and reading my profile, let us get your project done together.
Skills
5/5
I can't imagine a better consultation. Jani understood our needs, was very easy to communicate with, gave complete answers and anticipated potential problems.
Dec 07, 2023
5/5
Total rockstar developer. Thank you!
Jun 30, 2022
5/5
Jani was great to work with! We came to him with super low mobile/desktop speed and within a couple of days we were in the green at 90 & 99! I highly recommend his services and we'll definitely be back if we have any problems in the future.
Nov 29, 2021
5/5
Super responsive and knowledgeable!
Sep 04, 2024
5/5
Jani is great and very thorough. Well done.
Jul 08, 2024
5/5
Second time I worked with Jani. He is able to resolve issues quickly, that are beyond my ability or which would have taken me hours to figure out. Grateful!
Feb 13, 2024
5/5
Codeable was highly recommended to fix a php fatal error issue, when my go-to tech could not find the answer. Jani had a 5 star rating, and he was one of the first Codeable techs to respond to my request for help. Good communication throughout the process — Far better than my own communication, not having used Codeable before. I will continue to reach out the Jani and Codeable for other tech issues that are beyond my ability to resolve.
Jan 22, 2024
5/5
Super knowledgeable and helpful. Very fast and exceeded our expectations on several items.
Dec 19, 2023
5/5
Excellent work! Really appreciate how Jani has handled the project.
Oct 19, 2023
5/5
Jani was very knowledgeable and shared specific advice and suggestions. He communicated well.
Apr 27, 2023