👋 Hi, I’m Kailash - A Senior Full-Stack Developer - A PHP/Symfony/Pimcore & GenAI Certified I’m a senior full-stack developer with 12+ years of experience helping companies with end-to-end complex design, build, and stabilize production-grade web applications and SaaS platforms. I work best on complex, long-term projects where clean architecture, scalability, and reliability matter more than quick hacks. ⭐What clients usually hire me for: ************************************** ✅ Building or modernizing PHP / Laravel / Symfony–based systems ✅ Designing clean backend architectures using SOLID & DDD principles ✅ Developing full-stack web applications (backend-heavy) ✅ Upgrade/Migrate or maintain a complex web application ✅ Refactoring legacy systems into maintainable, scalable code ✅ Supporting SaaS products, internal platforms, and business-critical apps ⭐ Core Technical Strengths: ********************************* ✅ OOPs Concepts, SOLID Principles, and Domain-driven design structure. ✅ Web/app development with Back-end and Front-end development ✅ UI/UX for website Design, application design, and development ✅ HTML (5), CSS (3), Ajax, Bootstrap, jQuery, JSON, TailwindCSS ✅ MySQL, SQL, NoSQL, MongoDB, PostgreSQL, MVC, JavaScript, Typescript, Restful API, GraphQL ✅ PHP, Symfony, Laravel, Vue.js, Yii, WordPress, Angular, React, Node.js, Python. ✅ Zend, Pimcore, Spryker, Shopware, API-Platform, DoctrineORM, OpenCart, WooCommerce, Gulp, Tomcat, Solr, Twig, SonataAdmin, Elastic Search, Redux, Redis, RabbitMQ, WebRTC, Livewire, Blade, LAMP stack, PHPUnit, Behat. ✅ AI tools: Cursor, Claude, OpenAI, Replit AI, GitHub Copilot. ✅ Quality analysis with manual and automation. ✅ DevOps/ Server skills: Docker, Kubernetes, AWS/ EC2, and other 3rd party services, Azure, Windows, Linux, Apache2, Nginx, CI/CD ✅ Update methodology: Agile or a Scrum method ✅ Project management Tools: Jira, Stack, and ClickUp. Asana ✅ Hands-on experience with Git and Bitbucket. ⭐ Why Clients Work With Me ********************************* 🏅 12+ years of experience as a full-stack developer 🏅 100% Client Recommendation 🏅 90% of Repeated clients 🏅 8+ years of experience transforming ideas into reality ⭐Industry Experience: ************************** ✔️E-Commerce ✔️Electricity/Gas ✔️Financial Services/FinTech ✔️HealthCare/Pharma ✔️Real Estate ✔️Trasportation & Logistics✔️Law Firms ✔️Event/News ✔️Restaurants/FoodTech ✔️Social Media ✔️Eductaion/E-Learning/LMS ✔️Technology Recruitment ✔️Airport/Aviation/Automotive ✔️Gym/Fitness ✔️Security & Fire Sefty I don’t overpromise; I focus on building systems that last. 🎯 If you’re looking for a senior developer who can take ownership, think critically, and deliver clean, scalable code, let’s talk. — Kailash Sharma

Senior AI, Full-Stack & Mobile Application Architect | AI Agents, SaaS & Scalable Product Development I help startups, SaaS companies, and enterprises build intelligent software products that automate operations, accelerate growth, and create competitive advantages. With 10+ years of software engineering experience and deep expertise in Artificial Intelligence, Generative AI, Full-Stack Development, Mobile Applications, and Cloud Infrastructure, I specialize in transforming complex ideas into scalable, production-ready solutions. From AI-powered SaaS platforms and autonomous agent systems to mobile applications and enterprise automation, I bring both technical execution and product thinking to every engagement. AI Systems, Agents & Automation I design and build production-grade AI solutions that go beyond simple chatbot integrations. Core Expertise * AI Agents & Multi-Agent Systems * Agentic Workflows & Autonomous Automation * Generative AI Applications * Retrieval-Augmented Generation (RAG) * Knowledge Bases & AI Assistants * Prompt Engineering & Optimization * AI Voice Agents & Conversational Systems * Document Processing & OCR Solutions * AI-Powered SaaS Products * Workflow Automation & Business Process Optimization AI Technologies OpenAI, Claude, Gemini, Grok, DeepSeek, LangChain, LangGraph, LlamaIndex, CrewAI, AutoGen, MCP Integrations, Vapi, ElevenLabs, Synthflow Automation Platforms n8n, Make, Zapier, Pipedream, CRM Automation, API Integrations, Workflow Orchestration Mobile Application Development I build high-performance mobile applications for startups, growing businesses, and enterprise organizations. Technologies * React Native * Flutter * Swift & SwiftUI * Kotlin * Java Experience Includes * AI-Powered Mobile Applications * Real-Time Communication Apps * GPS & Location-Based Services * Push Notifications * Offline-First Applications * Subscription & Payment Systems * Health & Fitness Platforms * E-Commerce Applications * On-Demand Marketplaces * Social & Community Platforms Full-Stack SaaS & Web Development From MVP development to enterprise-scale platforms. Frontend React, Next.js, Angular, TypeScript, JavaScript, Tailwind CSS, ShadCN UI, Material UI Backend Node.js, Express, NestJS, Python, FastAPI, Django, Flask APIs & Architecture REST APIs, GraphQL, WebSockets, Microservices, Serverless Applications Databases PostgreSQL, MongoDB, MySQL, Redis, Firebase, Supabase Cloud, DevOps & Infrastructure Building secure, scalable, and maintainable systems designed for long-term growth. Cloud Platforms AWS, Google Cloud, Azure, Firebase, DigitalOcean DevOps Docker, Kubernetes, CI/CD Pipelines, GitHub Actions, GitLab CI, Jenkins Infrastructure Linux, Nginx, Load Balancing, Auto Scaling, Monitoring & Logging, Infrastructure Automation Machine Learning & Emerging Technologies Artificial Intelligence & Machine Learning * Predictive Analytics * Recommendation Systems * Computer Vision * Natural Language Processing * TensorFlow * PyTorch * Scikit-Learn Blockchain & Web3 * Smart Contracts * Solidity Development * Ethereum & Solana Integrations * Wallet Integrations * NFT Platforms * DeFi Applications Industries Served Healthcare, FinTech, Real Estate, E-Commerce, Education, Logistics, Hospitality, Fitness, Marketplaces, AI Startups, SaaS Platforms Why Clients Work With Me * 10+ Years of Software Engineering Experience * AI-First Product Development Approach * Strong Architecture & System Design Expertise * Experience Scaling Products from MVP to Production * Clean, Maintainable & Scalable Code * Clear Communication & Reliable Delivery * Long-Term Technical Partnership Mindset I don't just build software. I help businesses leverage technology, AI, and automation to create measurable business outcomes. Whether you're launching a new product, scaling an existing platform, or integrating AI into your operations, I can help you design, build, and deliver a solution that is reliable, scalable, and built for growth.

🔥 Senior Full Stack Developer For SaaS, Ecommerce, AI Features And Complex Web Platforms. 🔥 I have worked in enterprise cloud solutions with 𝟱𝟬𝟬𝟬+ 𝘁𝗮𝗯𝗹𝗲𝘀, 𝟱𝟬𝟬𝗚𝗕+ 𝗱𝗮𝘁𝗮𝗯𝗮𝘀𝗲, 𝟭 𝗠𝗜𝗟𝗟𝗜𝗢𝗡 𝗮𝗰𝘁𝗶𝘃𝗲 𝘂𝘀𝗲𝗿𝘀. My work has supported funded startups and high scale platforms including ✅ Elevatus with 10.5M dollars in funding ✅ Tallyfy with 1.4M dollars in funding ✅ MetaBeta with 500K euros in funding ✅ Skolaro with 1.5M plus users ✅ 40 plus complex web and software projects delivered across SaaS, ecommerce, HR tech, education, healthcare, real estate, finance, CRM, ERP, and automation I use modern workflows and AI coding tools to move up to 5x faster while still reviewing architecture, security, data flow, and code quality manually. Speed matters, but reliability matters more. I use modern development workflows and AI coding tools to move faster on scaffolding, refactoring, tests, documentation, and repetitive tasks. Architecture, security, data flow, database design, code quality, and production readiness are always reviewed manually. Clients hire me when they need a senior developer who can take ownership, understand the full system, fix frontend and backend complexity, improve performance, and ship reliable production work. 𝐅𝐔𝐋𝐋 𝐒𝐓𝐀𝐂𝐊 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 𝐖𝐈𝐍𝐒 ✅ High-conversion Landing Page and Frontend Development systems using React, Redux, JavaScript, TypeScript, Next.js, Vue.js, and Nuxt.js ✅ Enterprise dashboards with Data Visualization, RxJS, and real-time API Integration ✅ Performance-critical applications with Website Performance Optimization, webpack, and scalable Frontend Development Framework architecture ✅ Motion-driven User Experience using GSAP and UI micro-interactions ✅ Production-grade Backend Development using Laravel, Symfony, CodeIgniter, Node.js, Nest.js, Express.js, Django, Flask, and Fast API ✅ Secure API, API Development, and API Integration for SaaS platforms ✅ Data-driven systems optimized with MySQL, MySQL Programming, PostgreSQL, and MongoDB 𝐅𝐑𝐎𝐍𝐓𝐄𝐍𝐃 + 𝐁𝐀𝐂𝐊𝐄𝐍𝐃 + 𝐖𝐄𝐁 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 Frontend Development and Backend Development are not separate silos. On the frontend, I build scalable interfaces using HTML, HTML5, CSS, CSS3, SCSS, Sass, Bootstrap, TailwindCSS, Material UI, Vuetify, and modern CSS Framework standards with strict Responsive Design and accessibility. On the backend, I engineer reliable systems using PHP, Core PHP, Custom PHP, PHP Unit, CakePHP, Python, Ruby, Ruby on Rails, JavaScript, and TypeScript, ensuring clean Authentication, Authorization, and Versioning across all APIs. 𝐅𝐔𝐋𝐋 𝐒𝐓𝐀𝐂𝐊 𝐄𝐍𝐆𝐈𝐍𝐄𝐄𝐑𝐈𝐍𝐆 I design Web Development systems that support real users, real traffic, and real growth. I refactor unstable applications, improve Backend Development Framework structure, optimize API Development, and ensure frontend performance aligns with backend scalability. 𝐑𝐄𝐒𝐔𝐋𝐓𝐒 𝐀𝐍𝐃 𝐃𝐄𝐋𝐈𝐕𝐄𝐑𝐘 𝐄𝐗𝐏𝐄𝐑𝐈𝐄𝐍𝐂𝐄 ✅ 12 plus years of full stack development experience ✅ 40 plus complex software and web projects delivered ✅ 1M plus active users supported on high scale platforms ✅ 1.5M plus users supported in education technology platforms ✅ 10,000 plus job board integrations supported in HR tech systems ✅ 5,000 plus database tables handled in enterprise cloud environments ✅ 500GB plus database systems worked on and optimized ✅ Up to 80 percent application load time improvement through frontend, backend, caching, database, and query optimization ✅ 47 node AI automation workflows built for recruitment, screening, scoring, scheduling, and follow up ✅ 800 plus hours of automation work across CRM, operations, notifications, internal workflows, and business processes 𝗦𝘂𝗺𝗺𝗮𝗿𝘆: I've worked across every layer of the stack. On the frontend, I've built production applications with React, Redux, Next.js, Vue.js, Nuxt.js, Angular, AngularJS, Angular 9, Angular 10, and Angular Material. I write clean, semantic HTML and HTML5 with CSS, CSS3, SCSS, Sass, Bootstrap, TailwindCSS, Material UI, Vuetify, and modern CSS Framework standards, always with Responsive Design, Mobile-First Design, and Cross-Browser Compatibility as non-negotiables. On the backend, I've shipped production systems with Laravel, Symfony, CodeIgniter, Node.js, Nest.js, Express.js, Django, Flask, and Fast API — writing in PHP, Core PHP, Custom PHP, Python, JavaScript, TypeScript, Ruby, and Ruby on Rails with comprehensive PHP Unit testing. I design and integrate REST APIs, handle API Integration and API Development for SaaS platforms, and work with MySQL, advanced MySQL. Let’s build it right.

I help businesses fix, modernize, and scale their Angular apps. With 10+ years as a full-stack developer, I know how to quickly diagnose tough issues, untangle messy code, and upgrade Angular projects to the latest best practices. ✅ Need bug fixes or performance improvements? I can spot problems fast and deliver clean solutions. ✅ Stuck on an old version of Angular? I’ll modernize your app and bring it up to date. ✅ Starting fresh? I build responsive, user-friendly apps with Angular, Vue/Quasar, and reliable back-ends in Node.js/TypeScript or .NET. I also handle the full pipeline: secure APIs, AWS cloud hosting (EC2, Lambda, DynamoDB, S3, API Gateway), and CI/CD so your app is stable and scalable. Clients choose me because I fix problems quickly, communicate clearly, and deliver results that last. For samples of my work, please visit my GitHub profile.

I'm a front-end developer with over 5 years of experience from Kharkov, Ukraine. Every day I raise my skills and learning new features. I'm using the latest technologies and the latest trends in web development. I have a Bachelors in develop programs from Kharkiv Zhukovskiy National University, in the Ukraine. Listed below are my experience and skills. - JavaScript; - Angular; - HTML 5; - CSS3 ; - JQuery; - JQueryUI; - Foundation; - Bootstrap 3/4; - Nunjucks; - Canvas; - PSD to HTML; - Fabric.js - Basic PHP knowledge; - Grunt; - Gulp; - Git; - Bitbucket; - Jira. I always stick to the deadline and try to bring some extras to the project. I’m attentive to details and do my best to satisfy all client’s needs. I can work under pressure and meet even the smallest deadlines. I’m self-organized person. I hope, I can help you with your project, so contact me at any time.

🔥 Having 20+ years of solid Technology R&D experience, I've been delivering global SaaS products as a full stack developer, versatile web developer, expert software developer, and dedicated saas developer. I partner with startups and F500 clients (Pfizer, Deutsche Bank, ING, Upwork, KLM, Ford) who need a complete full stack developer and mobile app developer proficient in React, vue, angular, Node.js, and Python. Whether your web project requires a highly interactive frontend engineered by a specialist react developer using vue and angular, a scalable .NET or golang architecture, a custom CMS built by a senior wordpress developer, or a dedicated Back End Developer to build secure Rust and solana microservices, my role as your full stack developer and software developer ensures immediate success. I bring deep expertise in JavaScript, PHP, and AI integrations, while also understanding the business side of saas sales and saas marketing, to build high-performance SaaS applications, proving that a seasoned full stack developer, web developer, and saas developer is the key to true digital web transformation. ⭐ Certified full stack developer, react developer, software developer, & saas developer Top Rated+ | 🏆 100% full stack developer Success for every SaaS contract utilizing React, vue, angular, Node.js, Python, golang, and Rust | ⭐ 5-star Rating for web, mobile app developer projects, AI, Web3 via solana, and SaaS | 💰 $300K+ earned delivering excellence as an elite full stack developer, web developer, software developer, and wordpress developer. My Python, JavaScript, .NET, golang, and PHP web solutions are built to scale globally and accelerate your saas sales and saas marketing efforts as a premier full stack developer and mobile app developer. ⭐ Extensive full stack developer and software developer expertise across web, mobile, and SaaS platforms. I serve as a complete full stack developer, web developer, Back End Developer, and saas developer, seamlessly integrating AI models and Web3 components (including solana smart contracts) into robust web systems. My technical arsenal for full stack developer projects includes the MERN stack using React and Node.js (excelling as a lead react developer), modern frontend frameworks like vue and angular, enterprise-grade .NET and golang Web APIs, scalable CMS platforms as a wordpress developer, and memory-safe Rust modules for solana ecosystems. By combining core JavaScript, advanced React, vue, and angular ecosystems, scalable Node.js and golang microservices, stable PHP databases, and smart AI features, I deliver exactly what every client wants from a top-tier full stack developer, cross-platform mobile app developer, software developer, and Back End Developer. Whether architecting a new SaaS platform in .NET, optimizing core financial engines in Rust or golang, deploying a custom theme as a wordpress developer, boosting technical infrastructure for saas marketing and saas sales, or scripting in Python for complex data processing, my full stack developer and saas developer approach covers all web and AI requirements. 🤖 Solid full stack developer and software developer experience across various high-load SaaS domains (Finance, PropTech, HRTech, Travel, eCommerce) relying heavily on flawless custom full stack developer execution. I thrive specifically as a dedicated React full stack developer, react developer, Node.js Architect, elite Back End Developer, and strategic saas developer, seamlessly blending AI performance, golang APIs, and Rust (including solana blockchains) into traditional SaaS workflows. My background as a full stack developer, web developer, and mobile app developer means I confidently utilize Python, golang, and Rust for heavy FinTech data analytics, .NET and PHP for robust eCommerce SaaS web portals, versatile CMS setups as a wordpress developer, and modern JavaScript, vue, angular, and React for interactive PropTech web dashboards. 🔥 Certified full stack developer Engineering and Solution Architect Expert (Ph.D. CS, PMP, CSP, CSM, CSPO, ICP-PPM, MCP). I deliver Agile/Scrum SaaS solutions as a lead full stack developer, dedicated react developer, software developer, and saas developer focused on web, AI, React, vue, angular, Rust, solana, golang, and .NET innovation. Managing cross-functional teams as a full stack developer, I ensure strict coding best practices across dynamic React, vue, and angular UIs, iOS/Android builds guided by a senior mobile app developer, Node.js, golang, and PHP backends, Web3 solana integrations, legacy .NET migrations, bespoke CMS builds managed by a wordpress developer, and sophisticated Python integrations designed to maximize your saas sales and saas marketing ROI. Every SaaS interface, web module, and Back End Developer component I architect meets the rigorous standards expected from a master full stack developer, saas developer, and web developer utilizing JavaScript and Rust. *Last Updated: 30.06.2026

Full Stack Web Developer, Backend C# Developer ( Angular, React, Vue ) 🔸 20 years of experience in developing business applications software 🔸 C# | .NET Core | ASP.NET MVC | REST API | Sockets 🔸 MS SQL Server | MySQL| PostgreSQL | MongoDB 🔸 Angular 2+, JavaScript, jQuery, SignalR 🔸 Azure DevOps | AWS 🔹 HTML5 | CSS | Bootstrap 🔹 ORM: Entity Framework | NHibernate | LLBLGen 🔹 NUnit | XUnit | MSTest 🔹 Source control: Git | SVN | TFS 🔹 Self-starter and can work independently, also a great team player.

I’m a Full-Stack Developer with experience building SaaS platforms, AI-powered applications, ERP systems, healthcare products, and custom web applications using React, Next.js, Node.js, and TypeScript. Most of my work involves helping startups and businesses: - build a product from scratch, - improve an existing platform, -or solve scaling/performance issues as the product grows. I’m comfortable handling both frontend and backend development, from building responsive user interfaces to designing APIs, database architecture, cloud infrastructure, and third-party integrations. A few types of projects I’ve worked on include: >> SaaS platforms with multi-user workflows >> AI-based features and automation tools >> Healthcare and compliance-focused applications >> Real-time communication platforms >> ERP and business management systems >> Custom dashboards and admin panels Tech stack I work with regularly - React.js, Next.js, Node.js, TypeScript, PostgreSQL, MongoDB, AWS, Docker, REST APIs, GraphQL, and OpenAI integrations. I care a lot about writing clean and maintainable code, keeping communication clear during the project, and building systems that are stable long-term not just quick fixes. If you need help building or improving a SaaS product, web application, or AI-powered platform, feel free to send me a message or invite me to your project.

I turn modern Angular apps into fast, AI‑powered products. What I deliver: 1. LLM features: • Chat widgets, AI search, content rewriting, multilingual Q\&A • RAG pipelines with Pinecone or Weaviate, hosted on AWS or GCP 2. Performance and accessibility: • Core Web Vitals 90+ guarantee • WCAG 2.2 AA audits 3. Complete SaaS starter kits: * Angular 21, NestJS, PostgreSQL, Keycloak auth * Stripe or LemonSqueezy payments, deploy via Railway or Render Tech stack: Angular 19, Signals, RxJS, NestJS, TypeORM, LangChain.js, OpenAI SDK, AWS Lambda, S3, CloudFront, Astro JS, Tailwind, Cypress, Jest Why hire me • 6  years remote lead experience, US/Europe friendly hours • Clean, commented code • Clear daily updates, Loom walkthroughs, zero surprises Call to action Book a free 15 minute call and let’s ship something AI smart this week.

Having 18+ years experience and Microsoft certified Solution Architect with a great knowledge of Technologies not limited to DotnetCore, ASP.NET, Angular, Node.JS, React, Python. Proficient with DB2, Oracle, OOD and Relational Database systems. Currently experienced as a CTO in setting and managing the tech team(s) for my customers especially from USA, Canada and Germany. Established innovative Peer Code Review procedures to ensure standardization of coding practices, resulting in a 40% reduction in debugging costs, while at the same time, mentoring junior programmers and removing the "sole ownership" coding mentality so prevalent in talented developers. I have designed a lot of Solutions based on the Custom requirements from the customers including: - Payment Solutions - Retail - Fintech & EdTech - Construction - Legacy Software Rebuild - Multi Level Marketing - Accounting - HR & Payroll Management Systems - Learning Management System - Association Management System Also, My approach blends Cloud Architecture, DevOps automation, and AI-driven workflows—helping businesses accelerate digital transformation, reduce downtime, and increase operational efficiency. 🔹 Core Competencies ☁️ Cloud Architecture & Migration AWS, Azure Achitecture, GCP. I have worked with various small and medium sized companies including SAP as Senior Software Engineer. Client communication, Requirement gathering, Technical analysis, Data Modeling, Project Planning and Project Delivery have been a core part of my job. – Using standard frameworks to design the architecture of application which can be scaled easily and adjust to new technologies in future. – Specializes in front-end user interface development – Crafts elegant and robust solutions to complex business requirements – Collaborates openly and communicates clearly to remove blockages, keep projects moving and find durable solutions (not just quick fixes) – Delivers sites that are accessible, standards-compliant and which work across browsers and support devices like IPhone, IPad and any mobile device. – Backs up front-end expertise with solid experience in interface design, back-end programming and CMS development – Always improving deep knowledge of browser idiosyncrasies, bugs, accessibility standards and best practice – Can work with any team, as a team member or team lead based on the requirement. – Using design patterns and unit testing frameworks to provide quality and bug free work to client #TechSkills: ASP.Net, Dotnet Core, C#, VB.NET, Angular, React.JS, Microservices, Entity Framework, MVC3, MVC4, WCF, Web Services, Web APIs, Jquery, Ajax, Knockoutjs, Javascript, SharePoint, Cloud Architecture, DevOps, NopCommerce, Dotnetnuke, Umbraco, Design Patterns, Unit testing using frameworks like NUnit or Mock.