Valeriy Vasyliev | Gratta Studio
Full-Stack Developer
👋 Hello, my name is Valeriy and I am a WordPress and WooCommerce developer with a specialization in backend development. My focus is on creating high-performance, secure, and scalable websites that meet the needs of my clients.
4.96/5
overall rating
246
projects
107
customers
Location
Valencia, Spain
Languages
English, Indonesian, Russian, Ukrainian
Member since
13 Jan, 2023
2 years
Typical projects
Full Website Builds, Performance Optimizations, Troubleshooting and Fixes
I am a proficient and creative WordPress developer with extensive experience in website management and development. My expertise encompasses all facets of WordPress website creation, spanning from design and implementation to the seamless integration of various plugins. I specialize in crafting engaging and interactive websites that captivate users. I thrive in collaborative team environments and exhibit strong leadership skills. Meticulous attention to detail is ingrained in my work, complemented by proficiency in several programming languages. 🛠️ My areas of specialization include: ✅ Custom plugin development ✅ Tailored theme creation ✅ Web application development ✅ Performance optimization and robust security implementations ✅ Ongoing support and maintenance ✅ Seamless site migration, among other services. 🏆 Certifications: ✅ Yoast Certifications: - All-around SEO https://academy.yoast.com/certificate/2883/1635140/71be4500bbb865bd5504d7a41ed9420c/1/ - Technical SEO https://academy.yoast.com/certificate/22430/1635140/cacc111a40ba46c3461b1ce1c7341a6a/1/ ✅ LearnDash Expert Certification: https://drive.google.com/file/d/1JkHzwZEFJ--OGz9xyabs59WrhyQ-FY4k/view ✅ Indystack Certified: WordPress Hosting Mastery https://drive.google.com/file/d/112svg8uoBQIyhbJldQQ2Pi38weyNPs8l/view
Skills
5/5
Is amazing to work with this guy. An amazing professional and very efficient. 10/10
Jul 20, 2023
5/5
We are in very different time zones which meant we were often communicating at different times of the day, but Valerii replied to enquiries very promptly and always gave clear detail in his explanations. I would definitely recommend him to other users.
Jun 12, 2023
5/5
Valerii was great at responding back on the problem and had found initial problems even before being hired. Understood the task and executed with great confidence.
Jun 09, 2023
5/5
Valeriy was prompt and thorough in responding to queries and completing the work
Nov 25, 2025
5/5
Valeriy delivered outstanding work on a highly complex WordPress performance project for us. Our website suffered from severe performance issues that several developers were unable to identify or resolve. Valeriy not only found the root causes within a very short time, he also implemented targeted optimizations that resulted in a dramatic performance improvement across all metrics, including LCP, TTFB and overall loading stability. What really stands out is his analytical approach and his ability to explain technical matters clearly. He documented every step, worked methodically, and always kept us up to date. The solutions he implemented were clean, scalable and fully in line with best practices. Communication was excellent. He responds quickly, works transparently and is extremely reliable. Even under time pressure he stayed focused and delivered above expectations. We will continue working with him on further performance fine tuning, structural optimizations and a security audit, because we trust his expertise completely. If you are looking for a developer who is both technically brilliant and highly professional in communication and execution, we can recommend Valeriy without reservation.
Nov 20, 2025
5/5
The work was carried out exactly as requested. Valeriy was clear about the task in hand and provided a detailed explanation of the what changes were made and where they were made for future reference.
Nov 19, 2025
5/5
Valeriy was quick to respond and resolve my issue. I would definitely hire him again. Thank You Valeriy!!!
Nov 06, 2025
5/5
Excellent service!
Aug 23, 2025
5/5
Valeriy was great all around!
Aug 15, 2025
5/5
Valeriy was extremely responsive and even helped us out urgently at the weekend, which was greatly appreciated. He also rectified our most urgent problems in a very short span of time which shows his knowledge. I would definitely hire him again!
Jul 30, 2025
Restaurant Reservation System Customization
I enhanced a restaurant reservation system with key features like date exclusion for specific events, a cut-off time for same-day reservations, and customizable settings for special business days. These improvements, adaptable for various scenarios and easily managed through a user-friendly interface, significantly streamlining the reservation process.
Stock and Grain
Updated the theme to PHP 8.1 and created new page templates for online ordering and news pages.
Lehigh Valley International Airport (ABE)
Developed an integration with an external API that retrieves real-time data on flight arrivals and departures. This involved creating a system that could effectively communicate with the API and process the data it provided. I designed the integration to be flexible and scalable, allowing for future updates and enhancements as needed.
FarPlay
The task involved creating a custom WordPress plugin that provides a simple Single Sign-On (SSO) solution using PHP sessions. The plugin will create a record in the WordPress database upon user sign-in, based on the PHP session. The goal is to allow users to sign in once and access multiple applications, without having to enter their credentials again.
Vormats
I personally conceptualized and constructed the website for the newly established company, utilizing designs provided by an external agency.
Shopping Roulette
Shopping Roulette presents itself as a comprehensive e-commerce solution, incorporating advanced gamification elements and seamless integration with a multitude of partners.