I’m a full-stack web and mobile engineer with 10+ years of experience delivering secure, scalable, and high-performance applications. I specialize in building modern iOS, Android, and cross-platform solutions with a strong foundation in Information Security compliance, SOC practices, secure coding, and application-level cybersecurity. From startups to enterprises, I’ve helped clients design and launch digital products that are not only fast and user-friendly but also compliant, secure, and resilient against modern threats. Security & Compliance Expertise: - Secure Coding Practices (OWASP, SAST/DAST) - SOC (Security Operations Center) Standards - Application Security Engineering - Cybersecurity Risk Mitigation - Compliance with GDPR, HIPAA, ISO/IEC 27001 Tech Stack & Tools: - Backend: PHP (Laravel, CodeIgniter, Yii), Python - Frontend: HTML5, CSS3, JavaScript, Bootstrap, jQuery, AJAX - Mobile Development: React Native, Swift, Android, Cross-Platform - CMS & eCommerce: WordPress, Magento, OpenCart - Dev & Security Tools: JSON, C#, Redux, Git, RESTful APIs, Secure Payment Integration I pride myself on clear communication, quick response times, and delivering quality work on time. Whether you need a secure mobile app, a compliant web platform, or help improving your application security posture — I'm here to help. Open to short-term gigs, long-term roles, and project-based contracts. Let’s build something secure and scalable together.

I'm Costel, a seasoned Expert Full-Stack Developer with 20 years of experience and a Master’s in Computer Science, specializing in Custom Web Applications and WordPress. My expertise encompasses a broad range of solutions, including bespoke web applications, CMS, ERP systems, API development & integrations, e-commerce, as well as comprehensive WordPress front-end and back-end services. My approach prioritizes quality, performance, and scalability, ensuring each project not only meets but exceeds expectations. My expertise includes: - Custom web applications using Laravel, PHP/MySQL/HTML/CSS/JS (I've developed tens of custom complex systems eg: order management systems, production planning/tracking, invoicing, inventory management, email marketing solutions, job listings, medical platforms, web portals, etc.) - CMS / ERP systems - API development & integrations - WordPress bespoke themes, plugins, customizations - WooCommerce & Prestashop e-commerce solutions - Websites speed optimizations I ensure lightweight, robust solutions, optimized for speed and SEO, tailored to drive results and conversions. My commitment is reflected in my Upwork success, with a record of high ratings and client satisfaction, representing a recent yet significant part of my extensive career. What sets me apart? - Exceptional communication, projects/task understanding, always bringing innovative ideas and solutions - High-quality delivery, minimizing revisions and bugs - Reliability in meeting deadlines, with a well-organized approach - Passion and dedication to every project, ensuring 100% commitment - Agility and flexibility, adapting to the dynamic nature of software projects I’m here to make sure your project thrives, countering the industry’s trend of delays and budget overruns. Partner with me for a seamless, successful development experience.

Greetings for the day! I have 17+ years of experience in web design and development. I am a full-time freelancer and can start work immediately. Also experience in UI development (HTMl5, CSS3, Bootstrap, mobile responsive website), Like WordPress, React, Shopify, PHP, MySQL, JavaScript, jQuery, and AJAX, Photoshop, Photo Editing, Video Editing, Data Entry. Softwares : Milk Dairy Software Stock inventory software Coaching Class Management School/College Management Job Consultancy If you need an experienced developer who offers fluent communication, beautiful design & optimized code, premium after-service, & on time and to budget, then I am a suitable choice for you. If you need something based on solely ONE of the above criteria, then I am happy if you decide to give another freelancer a chance. Just bookmark me and come back in case the selected freelancer can't satisfy your demands. Looking forward to working with you. Thank You

As a programmer, I have accumulated good skills of mobile app & web development, especially, iOS and Android for about 7 years. Originally, I used native app tools like xcode and andriod studio. But recently, I use Ionic/PhoneGap/Cordova as well. I will dedicate myself to clients and build a good friendships with them. My skills and experiences are the followings: 1. Programming Language - PHP - JavaScript, Jquery, Angular JS - Titanium - MySQL, Several Script Languages 2. Skill & experiences relate to Production - Native app development for iOS & Android by PhoneGap/Cordova. - Web back-end, Web service - Integration of Facebook, Twitter, Pinterest, Instagram, Google+ - Google Map service, Foursquare, Location-Based Services - CoreData, CoreAnimation, Core Graphic - OpenGLES, OpenAL - Photo & Video Filtering, AVFoundation - Github, Bit Bucket, SVN, Basecamp - Cocos2d/3d, Unity3d - ARToolkit, Vuforia - Google Analytics, Adjust IO, Flurry SDK - Audo/Video Streaming & Chat using Streaming Server and in-app decoder (like ffmpeg, mplayer)

Hi, I’m Ritu, a Full Stack Developer with 6+ years of experience building modern, scalable, and high-performance web applications. I specialize in delivering complete end-to-end solutions — from frontend UI to backend architecture, databases, APIs, deployment, and automation. I help startups and businesses transform ideas into real, production-ready products that are fast, secure, and built for long-term scalability. I don’t just write code — I solve real business problems, improve system performance, and build solutions that deliver measurable value. I combine technical expertise + product thinking + automation tools to build systems that: ✦ Perform reliably under real-world load ✦ Scale seamlessly as your business grows ✦ Deliver smooth, modern user experiences ✦ Reduce development time using smart tools & automation Full Stack Development → End-to-end web application development (frontend + backend) → Clean, scalable architecture design → REST API & GraphQL development → Modular and microservices-based systems Frontend Development → React.js, Next.js, Vue.js → HTML5, CSS3, JavaScript / TypeScript → Tailwind CSS, Bootstrap, Material UI → Responsive, SEO-friendly, modern UI design Backend Development → Node.js, Express.js, NestJS → PHP (Laravel) for robust backend systems → Secure authentication (JWT, OAuth, session-based) → High-performance API development Database Development → SQL: MySQL, PostgreSQL → NoSQL: MongoDB, Redis → Efficient schema design & optimization → Data modeling and performance tuning AI & Automation Development → OpenAI / GPT integrations → AI chatbots & assistants → Prompt engineering & workflow automation → RAG-based AI systems → Business process automation using APIs No-Code / Low-Code Development → Bubble, Webflow, FlutterFlow → Airtable, Zapier, Make (Integromat), n8n → Rapid MVP development using no-code tools → API-based integrations with scalable architecture DevOps & Deployment → AWS, DigitalOcean, VPS hosting → Docker containerization → CI/CD pipelines → Nginx, Linux server management API & Third-Party Integrations → Payment gateways (Stripe, PayPal, Razorpay) → Twilio, Google Maps APIs → Social login integrations (Google, Facebook, Apple) → CRM, ERP & third-party system integrations Industries I Work With ✦ SaaS Platforms ✦ AI & Automation Systems ✦ eCommerce & Marketplaces ✦ EdTech & Learning Platforms ✦ Healthcare & Wellness ✦ CRM & Business Tools ✦ Media & Content Platforms ✦ Startup MVP Development Tech Stack Frontend: React.js | Next.js | Vue.js | HTML5 | CSS3 | JavaScript | TypeScript | Tailwind CSS | Bootstrap | Material UI Backend: Node.js | Express.js | NestJS | PHP | Laravel Database: MySQL | PostgreSQL | MongoDB | Redis | Firebase DevOps & Cloud: AWS | DigitalOcean | Docker | CI/CD | Nginx | Linux No-Code / Automation Tools: Webflow | FlutterFlow | Zapier | Make | n8n | Airtable AI Tools: OpenAI | GPT APIs | LangChain | AI Agents | Automation Workflows Let’s Build Something Powerful If you need a Full Stack Developer + No-Code expert who can turn ideas into scalable digital products — I’m ready to help. Send me a message and let’s discuss your project. Keywords Full Stack Developer | PHP Developer | Laravel Developer | Node.js Developer | React Developer | Next.js Developer | Web Application Developer | SaaS Development | API Development | REST API | GraphQL | MongoDB | MySQL | PostgreSQL | Redis | AWS | Docker | CI/CD | Microservices | AI Integration | OpenAI API | GPT Developer | No-Code Developer | Low-Code Developer | Bubble | Webflow | FlutterFlow | Zapier | Make | n8n | Automation Expert | Scalable Web Applications | Enterprise Software Development

100 % payment after 100% work done I am a LMS web development expert with 10+ year of experience.I have expertise in LMS website development,online courses and video courses which includes paid as well free membership to access Educational contents related to Medical, Finance, Art, Yoga etc.. Have worked with LMS platforms like 1 - Moodle 2 - LearnDash 3 - WPMLS 4 - EDX 5-Totara 6-Ontraport 7- Cornerstone 8- LearnWorld 9- Kajabi 10 - MemberPress 11- Tutor LMS 12- Talent LMS And all other LMS and OpenSIS developer

𝑯𝒊, 𝑰'𝒎 𝑹𝒂𝒌𝒆𝒔𝒉 — 𝑬𝒙𝒑𝒆𝒓𝒕 𝑭𝒖𝒍𝒍-𝑺𝒕𝒂𝒄𝒌 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒆𝒓 💼 8+ 𝐘𝐞𝐚𝐫𝐬 | 🚀 139+ 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 | ⭐ 𝟏𝟎𝟎% 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 I’m a Full Stack & AI-Powered Web Application Developer with 8+ years of experience building scalable web solutions for startups and small businesses. My work blends cutting-edge AI integrations with robust front-end and back-end development to deliver smart, responsive, and user-centric applications. AI Integration is my specialty. Whether it's building an AI content generator, integrating OpenAI/Gemini into web apps, or enhancing UX with AI-based personalization, I bring innovative solutions to life. I also work with n8n, an open-source workflow automation platform, to design and deploy custom automations that connect various services and streamline business operations. From automating lead flows and marketing tasks to integrating CRMs, webhooks, and APIs, I build efficient, scalable workflows that save time and reduce manual work. List of my expertise with various tech stacks: AI-Powered Web App (React + OpenAI / Gemini) SaaS MVP Development Website with AI Blog Writer & Scheduler E-commerce Store with AI Product Recommender Convert Figma to Next.js with Tailwind Landing Page with AI Lead Scoring React + Firebase Job Board / Marketplace Responsive design Third-party integrations via API Payment gateway integration Social media logins Geo-location implementation My proficiency comprises: Custom web application development CMS: WordPress, Joomla, Drupal PHP Frameworks: Laravel, Symfony, CakePHP, Zend, CodeIgniter, Yii ROR Framework, Python, Django APIs: RESTful, SOAP-based, OAuth-based APIs, Shipping APIs – UPS, USPS, FedEx, Amazon APIs (MTurk, SimpleDB), and Google APIs E-Commerce Website Development – Magento, BigCommerce, Shopify, OpenCart, osCommerce, PrestaShop Interactive Front-End Web Development: HTML, XHTML, XML, CURL, CSS, Twitter Bootstrap JavaScript MVC libraries and frameworks including: Bubble io, Backbone js, Ember, Knockout js, Ext JS, AngularJS, Node js & MEAN JS I also specialize in building all types of calculators like simple input-output tools to complex financial, tax, health, and logic-based calculators. Whether it's in Excel, Google Sheets, or web-based (JavaScript, React, etc.), I create fast, user-friendly, and error-proof tools tailored to your exact needs. Custom Excel & Google Sheets Calculators Financial & Tax Calculators (IRMAA, QCD, RMD, ROI, etc.) Health & Fitness Calculators (BMI, BMR, etc.) Web-based Calculators with live inputs and dynamic logic Error validation, styling, and mobile responsiveness AI Developer | AI Engineer | Artificial Intelligence Solutions | Machine Learning Developer | Deep Learning Developer | AI Model Integration | Natural Language Processing (NLP) | Computer Vision Expert | AI Chatbot Developer | N8N Developer | PyTorch Developer | OpenAI Integration | AI-Powered Web Apps | AI Automation Services | Custom AI Models | AI Workflow Optimization | AI in E-commerce | AI-Based Recommendations | AI-Powered Analytics | AI SaaS Solutions | AI-Powered CRMs | AI Prompt Engineering | AI Content Generation | AI Personalization Systems | Full Stack Developer | Full Stack Engineer | MERN Stack Developer | MEVN Stack Developer | Frontend & Backend Expert | RESTful API Developer | GraphQL Developer | End-to-End Web Solutions | JavaScript Full Stack | TypeScript Developer | Web App Development | Full Stack App Architect | SaaS Product Developer | MVC Architecture Expert | API Integration Services | Full Stack Consulting | Full Stack Performance Optimization | Full Stack Debugging | CI/CD Implementation | GitHub Actions & Deployment |

Hello! I'm a software engineer, and I am extremely motivated to develop my skills constantly and grow professionally. I am confident in my ability to add value to what I build. I have experience with: ⦁ JavaScript ⦁ Vue.js ⦁ Nuxt.js⦁ Node.js⦁ JQuery ⦁ AJAX ⦁ PHP ⦁ MySQL ⦁ PHPMyAdmin ⦁ PostgreSQL ⦁ SQLServer ⦁ C# ⦁ ASP.Net MVC ⦁ Entity Framework ⦁ NetCore ⦁ Docker⦁ WordPress  ⦁ Bootstrap ⦁ HTML5 ⦁ CSS3⦁ PostGIS ⦁ GeoJson ⦁ Leaflet ⦁ MapBox ⦁ QGIS ⦁ JSON ⦁ Web Development ⦁ Web Design ⦁ Landing Page ⦁ Responsive Web design Check out my GitHub profile: github.com/robinson1919 I have also performed successful projects regarding: -SaaS -ERP -CRM - I hope to be considered for your next project so I can add more value to it!

Concerned about poor app performance impacting your bottom line? Research indicates that 53% of users will abandon an app if it takes more than three seconds to load. I am a Senior Ruby on Rails developer with a 8 years of experience in web application development, with a deep understanding of the Ruby on Rails framework, I am committed to delivering exceptional results and providing efficient solutions to your projects 𝐌𝐘 𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 𝐀𝐂𝐇𝐈𝐄𝐕𝐄𝐌𝐄𝐍𝐓𝐒 𝐀𝐑𝐄: 1. Spearheaded the successful delivery and launch of 25 sophisticated Ruby on Rails web applications, ensuring seamless functionality and adherence to client specifications, resulting in high client satisfaction rates 2. Orchestrated performance optimization initiatives, implementing cutting-edge strategies that led to a remarkable 42% reduction in page load times, enhancing user experience and increasing user engagement 3. Guided a multidisciplinary development team in the seamless migration of a complex legacy system to Ruby on Rails, streamlining operations, improving system efficiency, and generating substantial cost savings in maintenance and support 4. Implemented rigorous security protocols and industry best practices, fortifying Ruby on Rails applications against potential cyber threats and reducing the risk of data breaches by a significant 50%, safeguarding sensitive user information 5. Demonstrated active involvement in the Ruby on Rails community by making impactful contributions to open-source projects. Garnered recognition for 3 notable code contributions, widely adopted by the community, and enhancing the overall functionality and reliability of the Ruby on Rails ecosystem 𝐖𝐇𝐀𝐓 𝐌𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐒𝐀𝐘 𝐀𝐁𝐎𝐔𝐓 𝐌𝐄: ⭐️ «Vladimir delivered exceptional results for our healthcare project. Gotoinc’s expertise in Ruby on Rails development exceeded our expectations. Their attention to detail, adherence to coding best practices, and a strong focus on security ensured the protection of sensitive patient data. Their professionalism, effective communication, and timely delivery were impressive. We look forward to future collaborations» - Sarah, CTO ⭐️ «We are highly satisfied with Gotoinc Team’s work on our e-commerce platform. Their deep knowledge of Ruby on Rails and e-commerce best practices resulted in a robust, scalable, and user-friendly web application. Their optimization techniques improved performance, leading to faster page load times and increased conversions. Their proactive communication and attention to detail made the project a success. We highly recommend the Gotoinc team for e-commerce projects» - Alex, Co-Founder 𝐇𝐎𝐖 𝐓𝐇𝐄 𝐇𝐈𝐑𝐈𝐍𝐆 𝐏𝐑𝐎𝐂𝐄𝐒𝐒 𝐋𝐎𝐎𝐊𝐒 𝐋𝐈𝐊𝐄: There are two options for collaborating with Gotoinc: - Talents-as-a-Service model a dedicated expert(-s) on a subscription basis. - Project-Based Collaboration model we deliver a certain scope or solution in a pre-defined timeline/budget. 𝐇𝐨𝐰 𝐭𝐨 𝐬𝐭𝐚𝐫𝐭: 1. Having an intro, where we identify your request 2. Our team identifies specific Talent or Team for your request 3. We deeply research your request and outline unique collaboration terms 4. Gotoinc presents your unique proposal and negotiates it with You 5. We sign a contract 6. We kick off our ongoing collaboration 💻 𝐑𝐮𝐛𝐲: Ruby, Rails, Sinatra, Padrino, Grape, Sidekiq, Nginx, RSpec, Capybara, Rubocop, Capistrano, Unicorn, Puma, Elastic Search 🔧Databases: PostgreSQL, MySQL, SQLite3, Redis 📊 Web Servers: Apache, Nginx 💻JavaScript JavaScript, ES 6/7, React, Vue, Jasmine, Handlebars, JSX, SKIM 📈HTML/CSS HTML5, CSS3, SCSS, Bootstrap, HAML, SLIM 📡 VCS: Git (Github, Bitbucket) 🆙 If you are interested in discussing your project with me, make sure to click the 👉🟢INVITE🟢 button, and let’s talk 🤝 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐞𝐝 𝐒𝐤𝐢𝐥𝐥𝐬: Ruby on Rails Development, Full-stack Web Development, MVC Architecture and RESTful APIs, Front-end Technologies (HTML5, CSS3, JavaScript), Responsive and Mobile-first Design, Database Design and Implementation (PostgreSQL, MySQL), User Authentication and Authorization, Integration of Third-party APIs, Deployment to Cloud Platforms (Heroku, AWS), Test-driven Development (TDD), Agile Methodologies (Scrum, Kanban), Version Control Systems (Git, GitHub), Project Management and Collaboration Tools (Jira, Trello), Documentation and Code Commenting Last updated: March, 2026

I am Expert Magento and Wordpress developer having 14+ years of experience. I have worked on Laravel, Magento 1, Magento 2 , WordPress and Shopify frameworks. I have worked on some Hyva theme websites in Magento. Also worked with Elementor in Wordpress. 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲? ✅ 10000+ hours worked ✅ Top-Rated Upwork Badge ✅ 120+ Jobs Completed Successfully ✅ Magento Certified Developer Plus - Certification for Enterprise Magento 𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿: 𝗖𝘂𝘀𝘁𝗼𝗺 𝗠𝗮𝗴𝗲𝗻𝘁𝗼 𝟮 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Craft bespoke modules, themes, and functionalities to enhance your store’s performance and user experience. 𝗠𝗮𝗴𝗲𝗻𝘁𝗼 𝟮 𝗠𝗶𝗴𝗿𝗮𝘁𝗶𝗼𝗻 & 𝗨𝗽𝗴𝗿𝗮𝗱𝗲𝘀: Seamlessly transition from older Magento versions or other platforms to the latest Magento 2, ensuring minimal downtime and data integrity. 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻: Implement strategies to speed up your site, boost performance, and improve search engine rankings. 𝗕𝘂𝗴 𝗙𝗶𝘅𝗲𝘀 & 𝗧𝗿𝗼𝘂𝗯𝗹𝗲𝘀𝗵𝗼𝗼𝘁𝗶𝗻𝗴: Quickly address and resolve any issues affecting your store’s functionality and stability. 𝗢𝗻𝗴𝗼𝗶𝗻𝗴 𝗠𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲 & 𝗦𝘂𝗽𝗽𝗼𝗿𝘁: Provide continuous support to keep your Magento store updated, secure, and running smoothly. 𝗦𝗞𝗜𝗟𝗟𝗦 Languages:- PHP, Javascript Databases:- MySQL Tools and Frameworks:- Magento, CakePHP, GIT. Domain Knowledge:- E-commerce, Web Applications. Let’s connect and discuss how I can help you achieve your e-commerce objectives with Magento 2 or WordPress. Contact me today to get started!