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I am a full-stack Ruby on Rails developer with years of experience and a degree in computer science. I appreciate clean, beautiful codes & clear communication. I am experienced with building, maintaining, and scaling web projects using Ruby on Rails. I have done everything from the most basic CSS to setting up production servers. I have been exposed to different industries using various processes and technologies. I'm also a skilled and passionate Shopify developer with more than 6 years of experience in crafting exceptional and seamless e-commerce solutions. My journey into the world of web development started with a love for creativity and problem-solving, which eventually led me to specialize in Shopify development. SKILLS and KNOWLEDGE: # Web Development - Expertise in developing, profiling, and debugging with Rails and Ruby - Experience in designing REST-APIs and profiling Rails applications. - Engineering experience with building scalable MVC, event-based, modular, API-driven software. - Experience in CMS gems (Refinery, ComfortableMexicanSofa), - Strong knowledge of HTTP, REST, Redis, PostgreSQL, MySQL, MongoDB - In-depth knowledge and practice in TDD with Rspec, Cucumber. - Strong knowledge about popular gems such as Devise, Cancancan, Rolify, Paperclip, Trailblazer, etc... - Working knowledge of Capistrano, Mina, Git. - Front end HTML, JS, CSS ability. - Familiar with ReactJS, VueJS, Jquery, CoffeeScript, AngularJS, BackboneJS, ExtJS, Twitter Bootstrap, Foundation. - Experience in using/setting up continuous Integration tools such as Codeship, Jenkins, Tddium. - Working knowledge in Google API, Facebook API, Stripe API, Paypal API. - Web administration experience in Linux/Windows base servers. SSH, Cpanel, Amazon Web Service - Working experience in Agile environment. - Cloud experience​ in Amazon, Engie Yard, Digital Ocean. # Shopify skills: - Shopify Expertise: In-depth knowledge of Shopify's platform and features. - Custom Theme Development: Crafting captivating and unique online store designs. - Shopify App Development: build apps to add advanced features to stores. - Liquid Templating: Creating dynamic and personalized content for an engaging user experience. - App Integration: Seamlessly integrating third-party apps to extend functionality. - E-commerce Optimization: Enhancing store performance and conversion rates. - Responsive Design: Ensuring a flawless shopping experience across all devices. - API Proficiency: Leveraging APIs for seamless data exchange and functionality. - Problem-Solving: Analyzing challenges and providing innovative solutions.

Senior Front-End Developer | Expert in Angular & React Native & Vue | TypeScript | SCSS | Node.js 🔹 8 Years of Professional Experience 🥇Top Rated (100% Job Success Rate) I’m an experienced Front-End Developer with a strong foundation in modern web technologies and over 7 years of experience in building scalable, high-performance web applications. My focus is on delivering visually appealing and user-friendly solutions that exceed client expectations. 📌 𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: ✔️ 7+ years of professional experience in web and mobile app development. ✔️ 5+ years of uninterrupted experience with Angular 2+ and related technologies (TypeScript, RxJS, NgRx and different UI libraries). ✔️ 2+ years of development experience with React/Redux/React Native, Nuxt.js, Vue.js and Wordpress ✔️ good knowlege of AJAX, JSON, REST API, GRAPH QL, OOP, SOLID, DRY, KISS, YAGNI ✔️ good understanding Docker, CI-CD integration ✔️ good knowlege Node.js, Express, Mongo DB, PostgreSQL 📌 𝐇𝐨𝐰 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 𝐘𝐨𝐮: ✅ Implementing sleek, pixel-perfect interfaces based on detailed UX/UI designs ✅ Collaborating with designers and developers to bring your vision to life ✅ Ensuring scalable, optimized, and maintainable code for long-term success ✅ Creating reusable components and optimizing applications for maximum performance Strong communication skills, work well both independently and within the team. Quickly learns and masters new concepts and skills. 📌 𝐌𝐲 𝐒𝐤𝐢𝐥𝐥𝐬: Angular, AngularJS, Angular CLI, Single Page Applications (SPA), Reactive Forms, Template-Driven Forms, RxJS, NgRx, State Management, Component-Based Architecture, Dependency Injection, TypeScript, JavaScript, Progressive Web Applications (PWA), Lazy Loading, HTML5, CSS3, SCSS, SASS, Bootstrap, Material Design, Angular Material, TailwindCSS, React Native, Vue.js, Vuetify, Pinia, PrimeNG, Kendo UI, Webpack, Babel, ESLint, RESTful APIs, GraphQL, API Integration, CRUD Operations, RxJS Operators, Jasmine, Karma, Protractor, Responsive Design, Cross-Browser Compatibility, Accessibility (WCAG), Figma, Git, GitHub, GitLab, Bitbucket, CI/CD, Docker, Firebase, Websockets, Socket.IO, Data Visualization, Chart.js, Highcharts, Agile Development, Scrum, Jira, Trello, Slack, Website Optimization, Performance Tuning, Lighthouse Audits, Browser Developer Tools, SEO Best Practices, Localization, Internationalization (i18n), Security Practices (OWASP), Design Systems, Component Libraries, Frontend Architecture, Code Refactoring, Debugging, Documentation, UI/UX Collaboration, SaaS Platforms, Ecommerce Platforms, Real-Time Applications.

I build production-ready AI and SaaS applications using Laravel, Python, React and OpenAI APIs. Across 134 Upwork jobs and 9,400+ hours, I have delivered custom GPT assistants automation platforms, With 17+ years of software engineering experience, 134 Upwork jobs and more than 9,400 Upwork hours, I combine hands-on development, enterprise solution architecture, performance engineering and technical leadership. HOW I CAN HELP • AI integration for Laravel, PHP, Python and enterprise applications • OpenAI, ChatGPT, Custom GPT, Gemini and Claude API integrations • AI assistants, workflow automation, forecasting and reporting • SaaS, CRM, ERP, e-commerce and internal business applications • Laravel, PHP, Python, FastAPI, Core Java and Node js development • React, Vite, Angular, React Native and Expo applications • REST APIs, webhooks and third-party integrations • Database design, migration, optimization and troubleshooting • IBM Product Master upgrades, migration and customization • Enterprise modernization, high availability and production support • Linux, Nginx, Ansible, Jenkins and CI/CD implementation AI, SAAS AND FULL-STACK DEVELOPMENT I develop practical AI solutions that integrate with existing applications, databases and business workflows. My experience includes OpenAI APIs, Custom GPTs, Gemini, Claude, prompt design, data analysis, demand forecasting and business-process automation. I build multi-tenant SaaS platforms, CRM systems, administrative portals, APIs, dashboards and mobile applications using Laravel, PHP, Python, FastAPI, Java, Node js, React, Angular, React Native and Expo. I also implement authentication, role-based access control, subscriptions, audit trails, input validation, API security and reliable webhooks. IBM AND ENTERPRISE TECHNOLOGIES I have extensive experience with IBM Product Master versions 10.1 through 14.x, including upgrades, migration, customization, performance optimization, imports, exports, reports, workflows, collaboration areas, custom tools, data masking and Persona UI troubleshooting. My enterprise experience also includes IBM MDM Director, WebSphere Application Server, Deployment Manager, node agents, clustering, high availability, IBM HTTP Server, load balancers, LDAP, SSO and token validation. I can assist with assessment, planning, sizing, automation, deployment, testing and post-go-live support. DATABASES AND PERFORMANCE • MySQL, IBM DB2 and Oracle • Data modelling, schema design and SQL development • Query optimization, execution analysis and indexing • CPU, locking, deadlock and transaction troubleshooting • Data migration, masking, validation and reconciliation • Database and application performance tuning • High-availability planning and production support • Log analysis, root-cause investigation and incident resolution API, DATA AND PLATFORM INTEGRATIONS • WhatsApp Cloud API, templates and webhooks • HubSpot CRM synchronization • Unleashed ERP and inventory data integration • Make dot com workflow automation • Google Sheets reporting and data pipelines • Email, SMS and business-messaging integrations • CRM, ERP and cloud-service APIs • Scheduled jobs and automated reports DEVOPS AND INFRASTRUCTURE • Ubuntu and Linux server administration • Nginx, PHP-FPM, SSL and DNS configuration • Ansible installation and deployment automation • Jenkins and CI/CD pipelines • VPS and cloud application deployment • Monitoring, logging and service alerting • Security hardening and production troubleshooting • Clustered and high-availability environment support • Application migration, backup and release planning SOLUTION ARCHITECTURE AND DELIVERY I translate business requirements into practical designs, implementation plans and realistic estimates. My experience covers discovery, architecture, development, code review, migration, testing, UAT, deployment, documentation, knowledge transfer and production support. I work effectively with business stakeholders, developers, database administrators, infrastructure teams and product experts. My Agile and Scrum experience helps manage dependencies, communicate risks early and keep delivery aligned with business priorities. WHAT YOU CAN EXPECT • Clear requirements, scope and realistic estimates • Business-focused technical recommendations • Secure, scalable and maintainable architecture • Regular communication and transparent progress • Strong troubleshooting and root-cause analysis • Clean implementation with documentation • Support from planning through deployment I am particularly suitable for businesses that want to integrate AI into an existing application, build a SaaS platform, automate manual processes, improve performance, connect multiple platforms or modernize an enterprise system without unnecessary rebuilding. Send me your technology stack, business objective and main technical challenge. I will review the requirements, identify the risks and recommend the most practical implementation approach.

I’m a Senior Software Engineer with 15+ years of experience building production web and mobile applications. My primary focus is frontend development, where I build scalable applications using clean architecture, reactive patterns, and strong performance optimization practices. I have extensive experience working with modern frameworks, especially Angular, and I apply consistent engineering standards to ensure maintainability and long-term scalability. In addition to web applications, I also develop cross-platform mobile apps using Ionic and Flutter. I integrate native mobile features such as biometric authentication and build device integrations including Garmin wearable devices. I am currently deepening my expertise in Flutter, actively building applications and expanding my mobile development capabilities while applying the same engineering principles used in production systems. My background also includes backend development using Go and PHP, working with microservices, REST APIs, and message queues. This allows me to understand the full system architecture and integrate frontend applications smoothly with backend services. For the past 3 years I have actively leveraged AI tools in my daily development workflow, which significantly improves development speed, debugging efficiency, and code quality. I use AI to accelerate coding, refactoring, troubleshooting, and building internal tooling while maintaining clean and maintainable production code.

Hello! I’m Senior developer with over 10 years of professional experience building enterprise-grade applications, RESTful microservices, and cloud-native solutions. I have successfully delivered projects for clients across Europe, the UK, Australia, India, South Africa, and the USA. ✅ Languages: Java, Kotlin, Groovy, Python, Node.js, Rails, TypeScript ✅ Ai: Agentic Ai, Subagent, Harness, Hermes Agent, SDD, TMUX, RAG, GraphRAG, Voice Ai Agent, Elevenlabs, n8n, FlowiseAI ✅ Back-End: Spring Boot, Spring Cloud, Spring Security, Micronaut, Camel, Express.js, NestJs ✅ Front-End: Angular, Vue.js, Nuxt, HTMX, Django, Tailwind CSS, Bootstrap ✅ Databases: PostgreSQL, MySQL, Oracle, MongoDB, Redis, Neo4J, DynamoDB ✅ Cloud & DevOps: AWS, CDK, Cloudformation, ECS, API Gateway, Lambda, Cognito, DynamoDB, Azure, Docker, Kubernetes, Terraform, Jenkins, GitHub Actions, Cloudflare ✅ Architecture: Clean Architecture, Hexagonal, Domain-Driven Design DDD, Microservices, Monolith ✅ Messaging: Kafka, RabbitMQ, ActiveMQ, Artemis ✅ Monitoring: Grafana, Kibana, Datadog ✅ APIs: REST, SOAP, gRPC, GraphQL, Websocket, SSE, tPRC ✅ Build & Tooling: Maven, Gradle, Flyway, Liquibase ✅ Opensource contribution to popular opensource projects like FlowiseAi, AWS PDK, Mongock, Jhipster lite and Jhipster Main generator. You can confidently entrust me with your project and you will not be let down by our collaboration. I assure you of my strong sense of responsibility and the high standard of the work I deliver, which you can rely on once I become part of your team.

🚀 Welcome to My Upwork Profile! I’m a Top-Rated Senior UI & Full-Stack Engineer with over 1300+ hours of successful Upwork projects and a decade of experience in front-end and full-stack development. Originating from Sri Lanka, I specialize in crafting high-performance web applications with cutting-edge technologies. 💡 My Expertise: ✔ Front-End Development – HTML5, CSS3, SCSS, SASS, LESS, Tailwind CSS, Bootstrap 4/5, Responsive Design, BEM Methodology ✔CMS – Wordpress, Framer ✔ JavaScript Ecosystem – Angular (4+), AngularJS, React/Redux, Next.js, Redux, Zustand, RxJS, TypeScript, ES6, WebSocket, REST APIs ✔ Back-End Development – Node.js, Express.js, Firebase, MongoDB, PostgreSQL ✔ Generative AI & AI Integration – build,io, OpenAI (ChatGPT), LangChain, LangGraph ✔ Real-Time & Cloud Services – WebSocket, Firebase, AWS 🔥 What I Bring to the Table: 🔹 Full-Cycle Development – From ideation to complex UI applications 🔹 Seamless AI Integration – Enhancing user experiences with Generative AI 🔹 Scalable & Performance-Optimized Solutions – Ensuring speed, security, and responsiveness 🔹 Team Collaboration & Leadership – Supporting teams and mentoring developers 📩 Let’s Build Something Amazing! If you’re looking for a dedicated developer to bring your project to life with modern UI, full-stack expertise, and AI-driven solutions, let’s connect!