I am MAGENTO CERTIFIED developer with over 17 years of intensivework in the web development and 11 years in e-commerce industry. I am a part of the Polcode team, a Polish software development company established in 2006 with over 150 developers, designers, project managers, DevOps and QA specialists onboard. This means that besides my programming skills you always have access to a full-stack product design & development team. I became an effective expert, application developer focused on delivering high quality code and top notch solutions. I have experience in all aspects of building large-scale web based applications. I have genuine interest in technology, up to date with best practices at every level of development. I'm an engineer who understands that technology ultimately supports a business and should contribute to the bottom line. This understanding guides all my consulting endeavours. My technical expertise: - Version Control Systems: Git, Bitbucket, GitLab - Databases: MySQL, MariaDb - Server workexperience: Apache - Frameworks: Magento, ZendFramework, Slim Framework, Casperjs, - Project management tools: JIRA, Redmine, Basecamp - Test Driven Development, Modularity, OOP, Acceptance tests My technology stack: - Magento: frontend, backend, performance optimization, SEO, modulesimplementation, extensions, development from scratch, integration with externalsystems, implementation RWD Magento skins, multilanguage and multistoreinstances - PHP 5/7 (OOP), MySQL, MVC - HTML5, CSS3, Prototype JS, AJAX, jQuery, XML, JSON, QR code More about Polcode Polcode provides customized software solutions for startups, SaaS companies, eCommerce stores, and enterprise clients worldwide. From building the product from scratch to extending the existing teams, we have expertise in a diverse set of open source technologies and platforms to bring innovation in an agile fashion. Our team excels in PHP, Symfony, Laravel, Magento, Go, React Native, React.js, Vue.js, Ruby on Rails and Angular. With over 150 people, Polcode has either empowered client teams or delivered end-to-end development projects for brands from fintech, manufacturing, consulting, eCommerce, marketing or eLearning industries and is recognized as Top Developer in Poland by Clutch. Looking forward to our cooperation! Paweł, Polcode Dev Team

I'm a full stack web and application developer with over five years of experience building websites, custom applications, and e-commerce solutions. I work with a wide range of technologies and platforms—including modern JavaScript frameworks like React and backend technologies like Python—and I focus on creating clean, functional, and scalable solutions that align with business goals. Over the years, I’ve delivered projects for startups, small businesses, and established companies across various industries. Whether you need to launch a new site, integrate a custom feature, or build a complex web app, I can help bring your idea to life—efficiently and professionally. My skill set includes: Front-End Development: React, JavaScript, HTML5, CSS3, jQuery Responsive, mobile-friendly design Dynamic UI development using Canvas, SVG, and interactive components Back-End Development: Python (Flask, Django), PHP (CodeIgniter, Yii, CakePHP, Zend), Node.js RESTful APIs, JSON, AJAX, MVC architecture Custom logic, integrations, and backend features for web apps and e-commerce platforms CMS & E-Commerce Platforms: WordPress, Shopify, Magento, Joomla, Drupal, Prestashop WooCommerce, OpenCart, OSCommerce Theme and plugin development, site customization, and third-party integrations Database Technologies: MySQL, PostgreSQL, MSSQL, Oracle, MongoDB, and other NoSQL solutions Structured and optimized database design for performance and scalability Other Tools & Technologies: Git, GitHub/Bitbucket, API integrations, deployment tools Cordova / PhoneGap for hybrid mobile apps CRM and ERP integration experience (VTiger, SugarCRM)

If you need assistance in WordPress, WooCommerce, or Magento development, I am here to help. I specialize in creating responsive, mobile-friendly websites by developing custom themes and plugins, modifying existing ones, and writing the necessary custom code to achieve your goals. Over the past 14 years, I have developed a wide range of websites using PHP, MySQL, JavaScript, and HTML/CSS. My main goal is to build websites that are easy-to-use, fast, and scalable while using the industry's latest design trends and development techniques. Thanks for considering me and I hope to hear from you!

I'm a Google Cloud Professional Architect and Cybersecurity Engineer with 18+ years of hands-on experience. And I build GCP environments where security isn't bolted on at the end. It's engineered from the ground up. In today's evolving threat landscape, a reactive security posture is a liability. I specialize in proactively identifying vulnerabilities and architecting multi-layered defense systems on GCP to protect mission-critical data and ensure operational resilience. My approach integrates security into the entire cloud lifecycle, from initial design and CI/CD pipelines to continuous monitoring and incident response. My key differentiator is an offensive security mindset enhanced by AI. I leverage Large Language Models (LLMs) to simulate sophisticated attack vectors and automate threat modeling, allowing me to uncover blind spots that traditional security tools often miss. This "think like an attacker" methodology ensures a more robust and future-proof security posture for your organization. My areas of expertise include: - Cloud Billing & Cost Optimization: Implementing FinOps Strategy, Cost Optimization & Resource Management. - Cloud Security Architecture: Designing secure-by-default GCP landing zones and infrastructure. - Threat Detection & Posture Management: Implementing and managing GCP Security Command Center and other CSPM tools. - AI-Enhanced Offensive Security: Using LLMs for advanced penetration testing and vulnerability discovery. - Infrastructure as Code (IaC) Security: Securing Terraform scripts and CI/CD pipelines against misconfigurations. - Container & Kubernetes (GKE) Security: Hardening containerized environments and implementing service mesh security. - Compliance & Governance: Architecting solutions to meet frameworks like ISO 27001 and SOC 2. Let's connect to discuss how I can secure your Google Cloud environment.

🥇 Top Rated Plus on Upwork | 🏆 Upwork Certified Laravel Developer | 💯 100% Customer satisfaction rate Hi there 👋! I'm Stefan, a Senior FullStack Developer with 7+ years of experience in the field. I can handle anything from minor style adjustments to building entire web applications, all while meeting tight deadlines and delivering high-quality results. 🎯 My approach to work is to provide the best solutions for every situation while maintaining clear communication with my clients. I am confident in my ability to help you achieve your goals. My primary skills are: ✔️ Laravel , Laminas(Zend), Symfony, PHP; ✔️ FinTech, E-Commerce, CRM; ✔️ MySQL, PostgreSQL, SQLite; ✔️ Vue.js, Nuxt.js, React.js, Next.js, Angular; ✔️ JavaScript, TypeScript, jQuery, Tailwind, Bootstrap 3.x / 4.x, AJAX; ✔️ SOAP, XML, JSON; ✔️ GIT, GitHub, GitLab; ✔️ REST API, SOAP; ✔️ AWS (RDS, CloudWatch, Route53, CloudFront, S3, EC2), DigitalOcean, GCP; ✔️ HTML 5 / CSS 3 / Sass; ✔️ AI / AI Agent / AI Bot / LLM; ✔️ Claude Code, Codex; ✔️ Python; ✔️ Docker, Kubernetes; ✔️ Monolithic, Micro-services Architecture; ✔️ Apache, Nginx, Ubuntu LAMP and LEMP; ✔️ Windows, Linux, MacOS; 🎯 I understand how challenging it can be to find a trustworthy developer, but rest assured that you have found one. I am here to help you solve your tasks and achieve your goals. Let's talk about your project, and I will assist you in finding the most profitable solution. Contact me, and let's embark on an exciting cooperation towards your success!

I have been working in web development industry for more than 5 years. Since I started with Zend Framework version 1 back in 2013, I've had a chance to work with the following PHP frameworks: ✅ Laravel (4, 5, 6) ✅ Phalcon (1, 2, 3, 4) ✅ Symfony (2, 3, 4, 5) ✅ CodeIgniter (1, 2, 3) ✅ Zend (1, 2) ✅ microframeworks (like Slim, Lumen) I'm using the following standards/recommendations/technologies in my daily work: ✅ SOLID principles ✅ PSR recommendations ✅ TDD/BDD - always trying to reach 100% coverage of my code ✅ RESTful, GraphQL APIs I'm used to working in agile environment, combining Kanban and SCRUM aspects in the development process. Recently I realised a good developer has to focus on the client's business goals and better communication skills. These skills are much harder to master than learning a new framework. As for the tech stack, here are some of the technologies I've mastered so far: ✅ AWS (EC2 with autoscaling, RDS, S3, SES, SQS, SNS, Route53, CloudFront, Lambda etc) ✅ PHP 5.x, 7.x ✅ RFC 2616, knowing HTTP protocol inside-out ✅ composer Here is the tools I'm using in my local setup: ✅ Ubuntu LTS ✅ SublimeText ✅ GIT ✅ Slаck and Skypе for communication ✅ docker, docker-compose I've been working on long term projects and would like to continue doing so. Let's have a skypе call discussing your project and me completing a free test task to show my skills! less Show less text

As a Top Rated Freelancer with over a decade of experience, I combine battle-tested software architecture with the lightning speed of modern vibecoding. I specialize in building scalable, secure, and efficient applications using PHP frameworks (Symfony, Laravel, Yii, Codeigniter, Zend/laminas) while leveraging AI-native workflows to ship features across Node.js, Go, and Flutter faster than traditional development allows. My Unique Value: The Senior Vibecode Fixer AI tools are fast, but they aren't perfect. If you used Bolt.new, Cursor, or Replit and hit a wall, I am the expert who breaks through it. I don't just generate code; I validate, secure, and deploy it. What I offer: ⚡ Professional Vibecoding: Expert user of Bolt.new, Cursor, and GitHub Copilot. I use these tools to vibecode rapid prototypes and production-ready features in record time, significantly cutting your development costs. 🔧 Vibecode Fixer & AI Debugging: Did AI generate code that is buggy, insecure, or hallucinates features? I specialize in taking raw vibecode and turning it into clean, maintainable, production-grade software. 🚀 Modern Full-Stack Development: PHP: Deep expertise in Symfony, Laravel, and Yii. JavaScript/Backend: Node.js, Express. Systems Programming: Go (Golang) for high-performance microservices. Mobile: Flutter for cross-platform apps. 🔌 API & System Integration: Custom REST/GraphQL API development to optimize workflows and connect third-party services. 🛠️ E-Commerce & CMS: Skilled in OpenCart, Magento, and WordPress for seamless online operations. ⚙️ Backend Scalability: I design secure, high-performance backend systems focused on long-term stability and effortless scaling. With 100% Job Success and hundreds of hours logged on Upwork, my clients value my reliability and my ability to adapt to any tech stack instantly. If you’re looking for a dedicated Vibecoder to build from scratch, or a Vibecode Fixer to save a stalled project, I’m ready to take on the challenge! Ready to get your code working? Invite me to your job today.

I build and maintain complex SaaS platforms for the cybersecurity industry — from API architecture and backend systems to frontend interfaces, containerized infrastructure, and cloud deployments on AWS. For the past 6 years, I have been the lead developer of a security awareness training platform used by organizations across multiple industries to defend against phishing, social engineering, and AI-generated threats. My core responsibilities include: • Designing and building RESTful API using PHP and the Laminas framework • Developing Vue.js 3 frontend integrated with PHP legacy systems • Managing asynchronous workloads through RabbitMQ message queues • Operating dual database architecture: MySQL for transactional data, DuckDB for analytical reporting • Deploying and maintaining all services in Docker containers across a shared network • Managing cloud infrastructure on AWS: EC2, S3, and Route 53 I also work with SciRev, an academic platform for the scientific community, expanding my experience beyond security into data-driven web applications. I work best on long-term engagements where I can develop a deep understanding of the product and contribute beyond just writing code — helping shape technical decisions, architecture, and roadmap priorities. If you are building or scaling a SaaS platform in cybersecurity, compliance, or enterprise software, I'd like to understand your project.

I am a Senior Software Architect specializing in Enterprise Mobile and Enterprise Web Application, SaaS, and API development. I am also the founder of my Upwork Agency, guaranteed.software. To compile a complete list of all skills I offer is now impractical, but below I highlight my skills which are possibly most relevant in today's market. ============================================= Languages, Frameworks, and Libraries of expertise ============================================= PHP - Symphony, Laravel, CodeIgniter, Cake, Zend, Magento, WordPress, WooCommerce JAVASCRIPT - React (Native), Node.js, AngularJS, JQuery PYTHON - Django, Web2P JAVA - Spring, Hibernate, Play, Android SDK HTML5, CSS3 - BOOTSTRAP SASS/SCSS LESS ================= Data Persistance ================= MongoDB SQL - MySQL, PostgreSQL, OracleDB, MSSQL Memcached LDAP File Systems ============================= OS and Deployment Environment ============================= *** OS **************************** Unix - MacOS Linux - Ubuntu, CentOS Windows Server ************************************ *** Deployment Environment ******************************************* Dedicated Servers, VPS Cloud-Based - AWS, Heroku, Google Cloud, Openshift, Docker Web Servers - Apache, Ngix ******************************************************************************* ======================= Testing ======================= BDD: Behat, PHPSpec (PHP), JBehave (Java), behave (Python) TDD: PHPUnit (PHP), JUnit (Java) HTML & CSS Regression Testing: BackStopJS (CasperJS, PhantomJS, ResembleJS) ========================= Additional Workflow Notes ========================= Though this may seem like a lot of computer jargon, it is important to mention a few other details to development that are instrumental in allowing me to guide your project to success. I am more than happy to explain anything that you are uncertain about prior to starting the project and we can determine what is and is not essential. I find that setting up bi-weekly, and sometimes daily 5 minute SCRUMs is very beneficial by keeping everyone on the same page. It is commonplace for us to use project management software on all projects. Currently, I prefer using Jira, Asana or Trello. If you don't have something like this already, I can set this up for you. For SCM, I typically use GIT on GitHub or BitBucket, often in conjunction with Hudson, Jenkins, or Travis CI. If you do not have these things set up, I can instantly get these rolling for you. I am very comfortable with working in your own development environment, if it already exist, whether it is cloud-based like AWS or if it is on a VPS or Dedicated Server(s). I also maintain an internal development server which is ready for use in the case that you do not already have an established development environment. Finally, comprehensive project estimation and consultation on the best approach to completing your project can be done in a separate, fixed-price project at $100 USD. Due to previous experience, It is no longer possible to offer consultation or any deliverables prior to being hired outside of the aforementioned arrangement. I'm looking forward to providing you success, guaranteed!!!

I work as PHP developer since 2009 and my projects are enterprise web applications, websites and APIs based on LAMP (Linux/Apache/MySQL/PHP) or Amazon AWS stack including frontend (HTML, CSS, Javascript, jQuery and Bootstrap framework). I worked on projects from scratch as well as on maintenance projects including huge legacy apps. A while ago I decided to specialize in Symfony framework in order to support clients with deeper, more specialized knowledge. Upwork TOP RATED PLUS contractor with experience in freelancing since 2012. My Symfony projects: - Deeper Signals: Maintenance of REST API (backend) built using Symfony framework (PHP, MySQL, Symfony 6, Doctrine ORM, REST API, Docker, GIT) - VONQ: Maintenance and refactoring of Job Marketing Platform microservices.(PHP, MySQL, Symfony 3 and 5, Doctrine ORM, REST API, Docker, Amazon AWS, Unit testing (PHPUnit and PhpSpec), Event Sourcing & CQRS, Auth0 / JWT, GIT, Jira, SCRUM) - Evenito: Event Management System, a legacy app based on Symfony Framework (2 and 4), Zend Framework 1 and Doctrine ORM. (PHP, MySQL, Symfony 2 and 4, Doctrine ORM, Zend Framework, Redis, Queue, Firebase, API, Optimizations, Bootstrap) - QuickRMS: A Recruitment Management System based on Symfony 4 built for an Austrian recruiting agency Global Experts (PHP, Symfony 4, EasyAdmin, MySQL, Bootstrap) - Inkpickr / Pick: Upgrades and bugfixes of an existing Symfony 4 competition website. (PHP, Symfony 4, MySQL, Webpack, Bootstrap) - An Attorney Management Software: Private admin panel for a law firm based on Symfony 4.3. (PHP, Symfony 4, MySQL, Google Drive API, Git Flow, Bootstrap) - Clubbie: Symfony 2 social network website for sport videos, clubs and players. (PHP, Symfony 2, MySQL, Docker, ElasticSearch) - Banja Luka Airport: a simple and quick Symfony 4 + EasyAdmin CMS (content management system) based on complex user roles. (PHP, Symfony 4, MySQL, EasyAdmin Bundle, Symfony Security, Symfony Voters) - Google Drive API Bundle for Symfony 4: My first Composer package for connecting Symfony 4 apps with Google Drive API. (PHP, Symfony 4, Google Drive API, Git, Composer, Packagist, Symfony Bundle)