I am a web developer with 10 years of experience building modern, reliable, and scalable applications. My main focus is backend development using PHP (Symfony, Laravel) and Python (Django). On the frontend side, I have solid experience with React for creating interactive user interfaces. I have also worked with AI models, bringing intelligent features into web solutions. With this versatile skill set, I can handle both backend and frontend development, delivering end-to-end projects efficiently. Let me hear what i can do for you.

Full-stack engineer with 8+ years building web applications. Recently expanded into AI: LLM integrations, RAG systems, and intelligent automation for smarter, future-ready products. I do more than write code. I help businesses make informed technology decisions by combining strong engineering skills with real business understanding. I spot problems early, suggest better paths, and stay proactive from start to finish. My focus is simple: deliver solutions that create real value and help businesses move faster.

A Full Stack web developer with 11 years of experience and participation in numerous projects with expertise in both backend and frontend applications. Creating full stack PHP web applications in various environments ( LAMP / LEMP ) with multple development stacks (Symfony, React, Wordpress) to achieve minimum maintenance and max performance. Tuning servers for page speed optimization and high-level security, providing more control, flexibility and cost effective resources. Love delivering fast and well-optimized pages that achieve a better user engagement and experience and an overall increase in SEO. My technology stack: # Backend Apache | nginX | PHP | Symfony - Doctrine | Wordpress | MySQL | Redis # Frontend ReactJS | Twig | Stimulus | jQuery | HTML | CSS - SCSS | Webpack | Gulp | git If What You Are Looking For Is: ✔ Symfony full stack development ✔ ReactJS frontend development ✔ Custom WordPress Themes & Plugins ✔ Automated Backend Functionalities ✔ Full REST API Implementation ✔ Google APIs and Services: Cloud Vision, Places, Maps, Charts, Analytics, etc. ✔ Amazon SP-API development ✔ Payment Systems: Stripe, Paypal, etc.. ✔ Apache/Nginx Migration/Setup/Optimization ✔ Code improvements and fixes ✔ Cutting edge Speed and Performance in your Server Then my expertise is the right fit for you. My skills combine the latest Web Technologies: - Backend development: PHP, Symfony, Doctrine, Redis, MySQL - Frontend Development: ReactJS, Twig, Stimulus, HTML5, CSS3, jQuery, AJAX, git - Server Side Optimizations: Google PageSpeed Module Setup,Caching services - Apache/Nginx Configuration: Optimize loaded modules, switch NPM - SQL Configuration: MySQL tuning,setup and performance boost, fix of slow queries - PHP Performance Tuning: Varnish, OPCache, PHP-fpm, php.ini optimization - Data Manipulation: Web Scrapping, APIs, JSON, XML Here's what you have to do next: You're interested in adding functionality that will bring more users. The next step is to message me and we can start a conversation of your project. The goal is to find out if we're a good fit to work with each other and discuss all the aspects of your job so that I will deliver you the result you want. To get the conversation started, hit the green "Hire Me" button on the top right corner of this page.

🖥 You need a full-scale web app or API developed in Symfony? 🛠 Need custom-build WordPress plugin or theme or full website? 🐘 Your custom PHP project has a weird bug which nobody could resolve? 🛠 Need your WordPress website fixed? ↔ You need integration of 3rd party APIs that no plugin or bundle can resolve out of the box? 🐧 Need your Linux server examined and fixed? 👍 In these, and many other cases, I guarantee you won't regret hiring me. With 21 years of experience, I worked on multiple software projects with international clients and teams. I am able to create back-ends of digital products and services from scratch and use my strong problem-solving capabilities and vast experience to track down the causes of errors in order to resolve them. 👩‍🚀 SKILLS: 🐘 PHP - Symfony 2/3/4/5, Drupal, WordPress, eZPlatform, swoole - specialized 🌎 Javascript, Typescript, HTML, CSS, SCSS, MySQL, PostgreSQL - everyday use 💻 DevOps - Linux-based systems - Apache, nginx, Vagrant, Docker, Ansible, bash, AWS, Azure - regular usage 🐍 Python - Flask - regular usage ☀️ MOTIVATION: I love the web and everything related to it. The possibility to publish your ideas quickly and make them available to the entire world is what made me decide to pursue a career in web development. I also believe in freedom and open source.

I bring over 10 years of experience building custom WebSites, Web Applications, Mobile Apps, CRM, and ERP, that perfectly match your needs. My expertise spans: • PHP/MVC Frameworks: Expert in PHP, Laravel, and Symfony • CMS/E-Commerce/Open Source: WordPress, WooCommerce, Sylius, Shopify, and Odoo • Databases: MySQL, PostgreSQL, SQLite, MongoDB, MariaDB, Redis, Timescale DB, and MindsDB. • Additional Technologies: Elasticsearch, Doctrine ORM, Swagger UI, Docker, Blade, Twig, Strapi, LoopBack, and Socket io • Application Design Architecture: Expertise in DDD (Domain-driven Design), TDD (Test-driven Development), CQRS (Command and Query Responsibility Segregation), and Microservices. • API Development & Integrations: Extensive experience in REST API Development, API Integration, SOAP APIs, OpenAI API Integration, Claude AI Integration, Third-Party APIs, Payment Gateways, Webhooks, and Custom API Development. • Front-End Skills: HTML5, CSS3, Bootstrap, jQuery, JSON, and AJAX. • JavaScript Frameworks: TypeScript, AngularJS, Inertia.js, Node.js, Nuxt.js, Next.js, React.js, Vue.js, and Express.js. • AI & Automation Solutions: OpenAI API, ChatGPT Integration, Claude AI, AI Chatbots, AI Assistants, RAG (Retrieval-Augmented Generation), AI-Powered Search, Document Processing & Summarization, Knowledge Base Chatbots, Workflow Automation, Custom AI Applications, AI Agents, LLM Integration, Vector Databases, and Business Process Automation. • Live Video Streaming & OTT: Experienced with FFMpeg, VideoJS, Wowza, VOD, SVOD, HLS, WebRTC, Dynamic Ad Insertion, and Video Player development. • Mobile Applications: Android/iOS proficiency in Flutter and React Native. • Cloud Platforms: Familiarity with AWS, Google Cloud, Linode, DigitalOcean, and others. • Deployment/DevOps: Experienced in Bitbucket, Github, GitLab, Travis CI, Circle CI/CD • Code Testing: Proficient in PHP Unit testing, Behat, Debugging and CodeRabbit WordPress Expertise: • Master of page builders: Elementor, Divi, Oxygen, Avada (and more!) • E-commerce pro: WooCommerce integration and customization • Theme creation and customization, from scratch or existing themes • Custom plugin development and modifications • Multi-language website development with WPML • Seamless Figma, XD, and PSD to WordPress integration • Visual Composer & ACF. Shopify Expertise: • Shopify store design and development from scratch • Custom Shopify theme development and theme customization and theme implementation • Liquid Programming • PSD, XD, Figma to Shopify • 100% fully responsive website development • Multi-language store development • Subscription-based store development • Various Shipping API and other 3rd party API Integrations What I can do for you: • Develop custom web & mobile applications from the ground up. • Design and integrate RESTful APIs to connect your applications seamlessly. • Build eLearning platforms, dynamic eCommerce marketplaces, business websites and more. • Optimize application performance and provide ongoing maintenance to ensure a smooth user experience. • Deliver captivating live streaming solutions and custom video players to boost user engagement. • Build AI-powered applications, chatbots, knowledge-base assistants, workflow automation tools, and intelligent business solutions using modern LLM technologies. Ready to turn your vision into reality? Let's discuss your project and build something amazing together!

⚡ High-Velocity Developer | 100% Success Rate Need results yesterday? I specialize in rapid, high-quality development powered by 15+ years of expertise and modern AI-assisted workflows. I combine the seasoned intuition of a veteran developer with the speed of today’s best tech. Proven: 100% Job Success Score. Fast: Optimized delivery cycles. Smart: Deep AI integration to 10x productivity and feature set. My technical expertise is extensive, encompassing PHP, Symfony / Laravel Framework, MySQL, and noSQL Databases (MongoDB, Redis). I'm proficient in node.js (socket IO framework, express), and JavaScript (Stencil JS, Ionic, React), and have built APIs using common architectures such as REST and GraphQL. Additionally, I bring to the table experience in managing AWS infrastructure and other servers based on the Linux Operating System specifically for hosting PHP / Symfony projects. My portfolio also includes building HTML mobile apps (Hybrid apps in frameworks like Ionic/Cordova). I’ve worked across a range of industries, including e-commerce, affiliate marketing, real estate, automotive, aviation, courier services, and healthcare. I have very good knowledge of Symfony Components, Doctrine ORM, PSR standards. I have also used across various projects Easy Admin, API Platform, DomPDF, Guzzle, SwiftMailer, Contao CMS and Amazon SP-API libraries. I have experience working with big data solutions - BigQuery, Adverity Datatap, building continuous cost-effective scraping solution and reliable process automations using make com (formerly integromat) Particularly, my most recent projects have been centered around the Symfony framework, granting me continuous and profound expertise in the Symfony / PHP ecosystem. My grasp of software development techniques is solid, including writing clean and secure code, object-oriented development, and designing application architecture with a focus on extensibility and scalability. I have recent experience in building projects that integrate AI features through the OpenAI / Fal APIs. For some significant period of time i was reponsible for building and maintaining shopify websites, including building custom theme, plugins that were enriching logically Shopify and also checkout cusotmisations Beyond just development, I make it a point to grasp a thorough understanding of the entire project from the end user's perspective. My years of experience enable me to provide accurate insights and advice on enhancing your project. What excites me most is problem-solving. I thrive on unraveling complex, challenging issues, and the software industry continually nurtures my knowledge and creativity. I'm also a fan of machine learning, possessing experience in Octave and the R language, along with theoretical knowledge in machine learning techniques. Recently, I have gained experience in building apps utilizing OpenAI APIs, further broadening my skill set. I take pride in being a versatile “one-man army” in Full Stack Development, capable of delivering fast, reliable results. My goal is to handle all your development needs efficiently - so you can stay focused, worry-free. I'm on the lookout for new challenges. If you're interested in working with me, I'd be eager to discuss how I can contribute to your project. Paweł

𝗥𝗼𝗹𝗹𝗲𝗱 𝗼𝘂𝘁 𝗮 𝗺𝘂𝗹𝘁𝗶-𝗰𝗼𝘂𝗻𝘁𝗿𝘆 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝘄𝗶𝘁𝗵 𝗘𝗥𝗣 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀; 𝗯𝘂𝗶𝗹𝘁 𝗮𝗻 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗻𝗴 $𝟓𝟎𝟎𝗸 𝗿𝗲𝘃𝗲𝗻𝘂𝗲 Looking for help with Full stack development? Send me an 𝗜𝗻𝘃𝗶𝘁𝗲 or a 𝗗𝗶𝗿𝗲𝗰𝘁 𝗠𝗲𝘀𝘀𝗮𝗴𝗲. 𝗪𝗵𝗮𝘁 𝗜 𝘂𝘀𝘂𝗮𝗹𝗹𝘆 𝗵𝗲𝗹𝗽 𝘄𝗶𝘁𝗵: • Designing and building Full-stack solutions for Web and SaaS products • Building robust backend services and APIs • Creating responsive and maintainable frontend interfaces • Developing cross-platform mobile applications • Integrating AI/ML features when they add real product value 𝗧𝘆𝗽𝗶𝗰𝗮𝗹 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝗰𝗼𝗻𝘁𝗲𝘅𝘁𝘀: • SaaS platforms and web applications • E-commerce platforms • Internal dashboards, admin panels, and CRM systems • Logistics and operations platforms • Web and mobile applications • AI/ML-powered products • Data-driven applications in FinTech and HealthTech 𝗧𝗲𝗰𝗵 𝘀𝘁𝗮𝗰𝗸: • Backend & Deployment PHP (Symfony / Laravel) · FastAPI · Redis · Docker · CI/CD · basic Kubernetes • Web Development JavaScript / TypeScript · Vue.js • Mobile Development Flutter • AI / ML (optional, product-focused) Python, C++ · PyTorch · TensorFlow · scikit-learn Transformers · Computer Vision · NLP · embeddings · fine-tuning • Data & Workflow Pandas · NumPy · MLflow · Optuna · A/B testing

If you are interested in my services, please feel free to contact me today or simply press the hire/invite button. 𝐎𝐮𝐫 𝐜𝐨𝐧𝐯𝐞𝐫𝐬𝐚𝐭𝐢𝐨𝐧 𝐢𝐬 𝐧𝐨𝐭 𝐰𝐨𝐫𝐭𝐡 𝐚 𝐬𝐢𝐧𝐠𝐥𝐞 𝐜𝐞𝐧𝐭 𝐭𝐨 𝐲𝐨𝐮! 🎨🔥🎶 𝗪𝗲𝗹𝗰𝗼𝗺𝗲 𝘁𝗼 𝗗𝗮𝗻𝗶𝗶𝗹'𝘀 𝗣𝗿𝗼𝗳𝗶𝗹𝗲! 🎶🔥🎨 𝗔𝗯𝗼𝘂𝘁 𝗠𝗲: If you're seeking a versatile Full-Stack Developer with a passion for both code and creativity, look no further! My name is Daniil, and I specialize in PHP, Laravel, Vue.js, and React development. With expertise spanning various domains like E-Commerce, EdTech, FinTech, and Healthcare, I bring a wealth of experience to every project I undertake. 𝗟𝗶𝗳𝗲 𝗣𝗿𝗶𝗻𝗰𝗶𝗽𝗹𝗲𝘀: 🌟 𝐖𝐨𝐫𝐤-𝐋𝐢𝐟𝐞 𝐁𝐚𝐥𝐚𝐧𝐜𝐞: Achieving harmony between professional and personal pursuits is paramount to me. I firmly believe that a balanced lifestyle fuels creativity and productivity. My passion for dance, acrobatics, and fire shows serves as a vital outlet, infusing energy and inspiration into my work. 🌐 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐲: I approach every task with a sense of duty and accountability. Whether it's crafting intricate CRMs or leading teams, I prioritize delivering high-quality results while upholding ethical standards and meeting deadlines. 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗝𝗼𝘂𝗿𝗻𝗲𝘆: My career journey began as a Front-End Developer, specializing in HTML, CSS, and JavaScript, particularly Vue.js. However, my evolving interests led me to explore backend development, where I discovered my affinity for PHP Laravel. Over time, I've honed my skills on diverse projects, from basic landing pages to complex e-commerce platforms and Shopify extensions. After two years of dedicated backend work, I assumed the role of 𝐓𝐞𝐚𝐦 𝐋𝐞𝐚𝐝 within my company, reflecting my passion and commitment to backend development and leadership in the web development field. 𝗛𝗲𝗿𝗲'𝘀 𝗮𝗻 𝗼𝘃𝗲𝗿𝘃𝗶𝗲𝘄 𝗼𝗳 𝗺𝘆 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝘀𝘁𝗮𝗰𝗸: 📌 PROGRAMMING LANGUAGES: JavaScript, PHP, and HTML/CSS. 📌 FRAMEWORKS/LIBRARIES: Laravel, Symfony, React.js, Next.js, Vue.js, Nuxt.js, Redux, jQuery, Bootstrap. 📌 PREPROCESSORS: Sass. 📌 DATABASES: MySQL, MongoDB, MariaDB, Redis, SQLite, and PostgreSQL. 📌 VERSION CONTROL: GitHub, GitLab, Codebase, Bitbucket. When it comes to integrating with APIs, I am proficient in connecting with any API that provides documentation. I am capable of developing APIs from scratch and integrating websites with popular APIs such as: ✅ Social Media: Facebook, Instagram, Twitter, Google; ✅ Payment Gateway: Stripe, PayPal, Authorize.net, Plaid; ✅ Email Service: MailChimp API, Twilio SMS, SendGrid, Mailgun; ✅ E-commerce: Amazon, eBay; ✅ CRM: Zoho, Salesforce. It doesn't matter which API you need to connect. I can connect any API that has documentation. 𝗔𝘀 𝗮 𝗳𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝘄𝗲𝗯 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿, 𝗜: 📌 Integrated third-party APIs from external applications into web platforms; 📌 Designed client-side and server-side architecture; 📌 Authored code in PHP and JavaScript within the Laravel framework; 📌 Wrote unit tests to evaluate high code coverage; 📌 Integrated front-end elements into applications; 📌 Built flexible, reusable code and libraries for future use; 📌 Troubleshoot and tested software and debugged to clean up code and improve efficiency; 📌 Modified and tested existing MySQL database schemas; 📌 Planned, coded, and deployed web-based applications using PHP, MySQL, and JavaScript; 📌 Configured and deployed existing and future REST APIs, integrating with third-party APIs. 🔸𝗟𝗲𝗮𝗱 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗲𝗿: I have successfully worked on diverse projects. My role involved leading a team of developers, meticulously analyzing client requirements, and extracting additional information necessary for project success. 🔸𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗣𝗿𝗼𝗰𝗲𝘀𝘀 𝗨𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱𝗶𝗻𝗴: To effectively deliver projects for clients, I deeply understood their business processes. This allowed me and my team to create efficient applications that met the clients' needs and addressed their business goals. 🔸𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗣𝗹𝗮𝗻𝗻𝗶𝗻𝗴 𝗮𝗻𝗱 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁: As a Team Lead, I developed project plans, defined tasks and their priorities, and efficiently distributed tasks among team members to meet deadlines and achieve project objectives. 🔸𝗥𝗲𝗰𝗿𝘂𝗶𝘁𝗺𝗲𝗻𝘁 𝗮𝗻𝗱 𝗧𝗿𝗮𝗶𝗻𝗶𝗻𝗴: I actively participated in the recruitment of new employees, conducted interviews, and seamlessly integrated them into the company and ongoing projects. Additionally, I developed and implemented onboarding programs for new hires, facilitating their rapid and effective integration into the team. 𝗟𝗲𝘁'𝘀 𝗖𝗼𝗻𝗻𝗲𝗰𝘁: If you're interested in collaborating on your next project or want to learn more about how I can add value to your business, feel free to reach out today! Simply click the hire/invite button, and let's embark on this journey together! Last Update: Nov 20, 2025

🦄 Senior Full-Stack Product Engineer (15+ years experience) I truly enjoy product development 🧡 and take pride in building systems that businesses can confidently rely on in production. I help founders and companies turn ideas into real products — MVPs, SaaS platforms, marketplaces, and custom CRM/ERP systems — from early concept to scalable production. My focus is business-driven development: clear architecture, reliable systems, and products that are ready for real users, revenue, and long-term growth. 🚀 What I build • Startup MVPs — from idea validation to launch-ready products • SaaS platforms (B2B & B2C) • Marketplaces & booking systems (match-type, multi-role platforms) • Custom CRM / ERP systems tailored to business processes • Subscription & payment-driven products (billing, payouts, dashboards) I work both with non-technical founders and existing teams, translating business needs into clean, scalable technical solutions. 🧠 Where I add the most value • Product architecture & long-term scalability • Complex business logic and role-based systems • Secure payment flows and financial logic • Admin dashboards & internal tools • Third-party integrations (payments, APIs, services) • Clear technical planning, estimation, and delivery I don’t just implement features — I help make the right technical decisions early, so the product doesn’t break when it grows. ⚡ Fast & efficient delivery (without shortcuts) I actively use AI-assisted development to speed up MVP delivery and product iteration — without compromising architecture, code quality, or maintainability. 🛠 Core technology stack (focused & proven) Backend: Symfony, Laravel, PHP, Pythom, Go, Node.js, REST APIs, payments & integrations Frontend: React, TypeScript Mobile: React Native, Flutter Infrastructure: Docker, CI/CD, cloud environments 💼 Product experience across industries Real Estate, Healthcare, CRM, eCommerce, Fintech, Banking, Trading, Sports, Media, Social platforms, Job boards, and other data-driven products. I’ve worked on international projects, including long-term platforms with thousands of users and complex workflows. 🤝 Why clients choose me • Strong communication & clear expectations • Business-first mindset (not “code for code’s sake”) • Reliable delivery and respect for deadlines • Ability to work end-to-end or integrate into existing teams • Fluent in English and French My goal is simple: deliver a product you can confidently grow and rely on. Let’s discuss your idea, MVP, or existing platform — and turn it into a solid product. Feel free to click Invite and start the conversation.

I am a full stack web developer with over 15 years of experience building, maintaining, and upgrading business web applications and websites for companies of various sizes. ✅ My key areas of expertise: PHP development (Symfony, WordPress, custom PHP) Backend development (Symfony Forms, Doctrine ORM, complex relations, entity management) WordPress custom theme and plugin development Business logic implementations (travel orders, vehicle management, internal dashboards) Payment gateway integrations (Monri WebPay, Stripe, PayPal, others) PDF generation for business reports, orders, invoices REST API integrations (third-party API connections, internal API development) Email integrations (Mailgun, Brevo, SMTP, transactional email systems) Web server management and deployment (Linux, Windows, DigitalOcean, cPanel, Laravel Forge, Docker) Database management (MySQL, PostgreSQL, Oracle) Frontend work (Bootstrap, SB Admin 2, responsive layouts) ✅ What I can help you with: Build complete business web applications with custom features Maintain and upgrade existing Symfony or WordPress projects Debug, troubleshoot, and fix backend or database issues Migrate and optimize applications across servers Integrate payments, emails, APIs, and reporting features Deliver clean, efficient, long-term solutions that work in production I approach each project professionally — I review the existing system, analyze the codebase, propose specific solutions, and work with you directly to ensure stable results. I don’t overcomplicate things, I go straight into the problem and give you clear and actionable answers. If you are looking for a developer who can enter into an existing Symfony or WordPress project, fix current issues, extend functionality, integrate external services, and handle production-level systems — feel free to contact me. Let’s review your project together and I will provide you with a clear plan how we can solve your challenges.