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Hennadii A.

Hennadii A.

Senior PHP Backend Developer | PHP, Symfony, Laravel, WHMCS, APIs

I’m a senior web developer with over 15 years of experience building robust, production-ready PHP applications and full-stack web solutions. My main focus is backend architecture, system reliability, and API design, but I also deliver complete end-to-end solutions including frontend integration with JavaScript (ES6+), HTML5, and AJAX. I have extensive experience with Symfony and Laravel across multiple versions, designing and implementing REST APIs, complex business logic, and scalable database systems (PostgreSQL, MySQL, MSSQL). I’m familiar with Docker, CI/CD pipelines (GitHub, GitLab, Jenkins), and Linux-based production environments. Throughout my career, I’ve worked on a variety of projects, including SaaS platforms, billing and subscription systems, e-commerce, and enterprise web applications. I’m comfortable handling legacy systems, refactoring codebases, and implementing solutions that are both secure and maintainable. I enjoy collaborating with clients and teams, contributing to open-source projects, and delivering solutions that solve real business problems. My approach is pragmatic: I focus on building systems that work reliably, scale smoothly, and are easy to maintain. If you’re looking for an experienced web developer who can take ownership of your project from backend to frontend and deliver a high-quality solution, I can help you achieve your goals efficiently. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 𝐟𝐨𝐫 𝐭𝐡𝐞 𝐩𝐫𝐨𝐟𝐢𝐥𝐞: Back-End Developer, Back-End Development, PHP Frameworks, PHP Web Developer, WHMCS, PHP programming, Symfony Developer, Symfony 1.X, Symfony 2.X, Symfony 3.X, Symfony 4.X, Symfony 5.X, Symfony 6.X Sylius ,Laravel 4, Laravel 5, Laravel 6, Laravel 7, Laravel 8, Laravel 9, API’s, Custom PHP, JavaScript, API Integration, Web Development, HTML, HTML5, MySQL, Bootstrap, CSS. Laravel Engineer, Laravel Developer, PHP Laravel Expert, Senior Full Stack Laravel Developer, PostgreSQL, Docker, Gitlab, AWS, RESTful API, jQuery, AJAX, PHP Script, Database, Web Service, MySQL Programming, Legacy Systems, Enterprise Web Applications, PHP Legacy Maintenance, System Refactoring

🇵🇱Gdansk, Poland$50/hr100% JSS5.00 (6)Since Jan 2016

Earnings and projects

MRR
$37

Last 6 months ÷ 6

World#156,199 / 412k
🇵🇱Country#1,058 / 2,852
Revenue, last 30 days
$0

Last 6 months: $223

Total earnings
$18k

Billed in all: $19k

World#149,778 / 412k
🇵🇱Country#1,206 / 2,852
Per project
$2.5k

$111 in the last 6 months

World#64,047 / 412k
🇵🇱Country#616 / 2,852
Projects, last 6 months
2
0% fixed100% hourly
World#88,918 / 412k
🇵🇱Country#610 / 2,852
Projects in all
7

Across 9 contracts

22% fixed78% hourly
World#236,188 / 412k
🇵🇱Country#1,762 / 2,852

Earnings, last 30 days

$18.7kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$18.4k$18.6k$18.8k$19.0kOct 8Oct 23Nov 7

Skill rankings: Top 24% in RabbitMQ

Ranked by MRR among everyone on Upwork with the skill.

  1. #38WHMCS Development124 freelancers · 🇵🇱 #1Top 31%
  2. #132RabbitMQ552 freelancers · 🇵🇱 #7Top 24%
  3. #270Symfony944 freelancers · 🇵🇱 #9Top 29%
  4. #481Software Architecture & Design1,465 freelancers · 🇵🇱 #17Top 33%
  5. #488Redis1,774 freelancers · 🇵🇱 #5Top 28%
  6. #2,489Amazon Web Services7,488 freelancers · 🇵🇱 #28Top 33%
  7. #2,496API7,943 freelancers · 🇵🇱 #41Top 31%
  8. #2,752Docker8,761 freelancers · 🇵🇱 #41Top 31%