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Availability: Full-time freelancer, 𝟰𝟬+ hours/week, open to long-term collaborations. I’m a Full-Stack & AI Engineer with 10+ years of experience building web and mobile applications and 3+ years of specialized experience in AI and Large Language Models (LLMs). I design, develop, and deploy production-grade platforms, from scalable SaaS dashboards to AI-powered assistants, RAG systems, and voice agents. I work end-to-end: architecture → backend → frontend → cloud deployment, with a focus on clean code, maintainable systems, and high performance. Over the past few years, I’ve delivered solutions that integrate AI/LLM pipelines, vector search, real-time chat, and voice agents for enterprise and startup clients. 🤖 AI & LLM Expertise - MCP Server Development: Designing and integrating custom MCP servers for AI agents, enabling structured tool usage, external system integrations, database querying, and API orchestration. - Fine-Tuning: Persona creation, Q&A systems, and domain-specific models (medical, legal) using Mistral and Llama 3. - Synthetic Dataset Generation: Streamlining LLM training with high-quality datasets. - Evaluation Frameworks: Assessing LLM performance with custom metrics. - Cloud Deployment: Deploying LLMs on AWS and GCP. - AI Agents & Voice Bots: Proficient with LiveKit, Retail AI, OpenAI. - Open-Source Deployment: Expertise deploying models like vLLM on AWS/GCP/RunPod using SkyPilot. 🛠️ 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗧𝗼𝗼𝗹𝘀 & 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀 ➜ LLM Tools: LangChain, Langsmith, Langfuse , Hugging Face, Transformers. ➜ Vector Databases: Chroma, FAISS, Pinecone, Qdrant , Opensearch ➜ AI Workflows: Flowise AI, LangFlow, StackAI. 🛠️ 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 ➜ Languages & Frameworks: Python, Node.js, ReactJS. ➜ Database Management: MongoDB, MySQL, PostgreSQL , Supabase , FIrebase ➜ Frontend & Backend Integration: Seamlessly connecting APIs and user interfaces. 🌟 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗦𝗸𝗶𝗹𝗹𝘀 ➜ Open-Source LLMs: Proficiency in LLAMA 3, Mistral 7B, and Mixtral 8x7B. ➜ Prompt Engineering: Expertise in techniques like Chain of Thought, Few-shot Prompting, and Self-Reflection. ➜ Fast Inference: Implementing high-speed solutions with vLLM . 🌟 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲? With over 10 years of experience, I deliver scalable, cutting-edge solutions tailored to your project’s needs. Whether it's advanced AI models, MCP server development, LLM optimization, or full-stack development, I ensure top-notch results every time. Let’s collaborate to bring your ideas to life!

✔️Guaranteed 90+Performance✔️Accessibility✔️ SEO✔️ Best Practices✔️ GTmetrix 🕒14+ hrs online ✔️Guaranteed Core Web Vitals- LCP, CLS, INP improvement with Crux data Monitor - I clean & redo the website based on native coding for a permanent result. (Gutenberg, FSE block & Vanilla Js) Tech: Shopify | WordPress | Lovable| HubSpot | Webflow | Breakdance| gutenberg | Elementor | Cloudflare | PHP | Laravel | HTML | Magento | Shopify | BigCommerce | Codeigniter | Static | Headless | Next.js | React.js | Custom-built stack My Execution Strategy for Speed Optimisation 1. Initial Audit & Benchmarking the current report - Google PageSpeed Insights 2. Identify bottlenecks in Speed Index parameters - FCP, LCP, TBT, SI, and CLS 3. If CMS allow staging, create staging and perform all techniques - code minification, critical/used css, lazy-load, defer, font optimization and reduce on initial page weight 4. Server and CDN cache integrations My plan of execution for Core Web Vitals fixes 1. All steps of the above Speed optimization will be performed 2. I will ensure we get the LCP 2.5 sec and CLS green 3. Modify CDN integration as per need, also suggest the best server initial response time with avoiding downtime 4. Submission of pages for validation in Google Search Console. Note: It passed pages that report gets fetched and updated at GSC. For less traffic-based pages or having slow server response, it usually fails and will have to resubmit those again. I prefer to monitor it and boost the failing URLs if there is any room for improvement. A lot of CMSs have their own CDN and server control, and they do not allow CDN integration. 📍 Ping me, and I will ensure your website is performing at its peak performance 📍 To ensure great results on Google Core Web Vitals, I will share the plan of execution including page weight reduction as cleaning of unrequired elements, identification of errors and providing resolutions for all parameters (LCP, CLS, INP). I have done it for 1000s websites and will make sure your website will achieve those great results. Having 12+ years of core expertise in Website development and being a Page Speed Optimization Expert (CMS or Custom), I am capable of speed optimising any stack-based website to its peak performance, including Server and CDN configuration. I deliver results per any tools such as: ✔️ Google Core Web Vitals (Google Pagespeed optimization) ✔️ Google Search Console fixes ✔️ Lighthouse ✔️ Page Speed Insight | Page Speed Optimization (pagespeed optimisation tool) ✔️ GT-Metrix (gtmetrix com) ✔️ web.dev (web dev/measure) ✔️ Pingdom (tools pingdom com) and many more. My services towards these website development technologies of the website: ✔️ E-commerce Page Speed Insight | Page Speed Optimization | core web vital ✔️ WordPress Page Speed Insight | Page Speed Optimization | core web vital ✔️ Shopify Page Speed Insight | Page Speed Optimization | core web vital ✔️ Webflow Page Speed Insight | Page Speed Optimization | core web vital ✔️ Laravel Page Speed Insight | Page Speed Optimization | core web vital ✔️ Magento Page Speed Insight | Page Speed Optimization | core web vital ✔️ PHP Page Speed Insight | Page Speed Optimization | core web vital

I am having 8+ years experience in Server Administrator & System Administrator And Network Administrator, wordpress. I have managed shared server,vps server, dedicated server, godaddy Hosting ,AWS Cloud Server,Digital Ocean Cloud Server,Google cloud, Alibaba cloud, DNS,Domain,SSL certificate,Plesk panel,Red-hat,CentOS,Ubuntu, G-suite setup AWS cost management and so on. I am AWS Certified Solutions Architect Associate Engineer And AWS Certified SysOps Administrator Engineer. In which i have managed following things:- EC2, LoadBalancer, RDS, Route53, S3 Bucket, Light-sail, SES, Work-mail setup, Snapshot, Volume, Auto Scaling, AMI, IAM Role, SSL Installation, Dedicated Server, Shared Server, Wordpress, Php, mysql, LAMP server etc. I have migrated Thousands of website shared hosting to cloud server aws. Skills:- DNS, Domain, Website Migration , SSl Installation of domain and subdomains, Installation of LAMP, Nodejs, NPM, JAVA, Ruby on Rails,Wordpress, php, Phpmyadmin, Mysql, Installation etc. 🕵 Malware Removal & Security Deep scan of WordPress files and database for malware, backdoors, and injections Manual removal of malicious code and infected files Clean hacked WordPress sites and restore functionality Remove phishing pages, Japanese keyword hacks, redirects, & spammy links 🔐 WordPress Hardening Install Maldet + ClamAV → scan for malware Setup & configure Wordfence Security Plugin Enable firewall (WAF) & brute-force protection Hide wp-admin & wp-login from bots & attackers Enable Cloudflare reCAPTCHA for login, registration & contact forms Disable XML-RPC & REST API (if not needed) 🌐 Cloudflare Security Setup Configure Cloudflare CDN + SSL Setup WAF (Web Application Firewall) rules Block bad bots & fake crawlers DDoS protection & rate-limiting rules Custom rules to stop brute-force attacks ⚙️ Server & Performance Security Secure file permissions & wp-config.php Regular backups & monitoring alerts Optimize server response & caching for faster load times My specialized areas are as follows. ◈ Server-related tasks ✅ Troubleshooting issues related to web servers (Apache, NGINX). ✅ Installation/renewal of SSL certificates. ✅ Troubleshooting Linux server-related issues. ✅ Configuration of LAMP/LEMP stack. ✅ Fixing 401, 403, 404, 502, and 503 HTTP errors. ✅ Configuration of Webmin, Virtualmin, WHM, WHMCS, Plesk, cpanel, directAdmin etc. ✅ Troubleshoot SSH access-related issues. ◈ WordPress websites ✅ Migration of WordPress websites from one hosting to another ✅ Troubleshooting WordPress website-related issues (Critical errors, outgoing emails not working, etc.). ✅ Set up SMTP email configurations. ✅ WordPress core, themes, and plugin updates. ✅ Payment gateway integrations. ◈ Email related configurations ✅ Google Workspace email set up. ✅ SMTP configurations for different web applications. ✅ Configuration of third-party SMTP providers such as AWS SES, SendGrid. ◈ DNS related tasks ✅ Configuring DNS (adding/modifying DNS records, updating nameservers) in different domain providers (GoDaddy, Namecheap, Google Domains, Bluehost, DreamHost, etc). ◈ Websites/Web application development ✅ Fix errors related to websites/web applications built using HTML, CSS, JavaScript, PHP, and MySQL. ✅ Build web applications using the PHP Laravel framework. ✅ Development of backend APIs using Java Spring Boot framework. ✅ Third party API integrations. ✅ Wordpress ◈ Infrastructure management in different Cloud Computing Platforms ✅ Amazon Web Services (AWS) ✅ DigitalOcean ✅ Google Cloud Platform (GCP) ✅ Vultr ✅Contabo ✅ionos ✅ Alibaba ✅ hawai cloud If you're looking for a dedicated and experienced developer/server admin who can deliver high-quality code and drive successful project outcomes, I'd love to chat with you. Let's work together to turn your vision into reality!

⚡ TOP RATED Freelancer | ⚡ 14+ Years Experience in Web Security and WordPress Hello! I am Harwinder Kumar, a seasoned professional specializing in comprehensive Web Security and WordPress. I offer services in Malware Removal, Virus Removal, Ethical Hacking, Internet Security, Websites Migration, WordPress Development, SSL Installation, Linux Server Administration, Domain & DNS Management, WordPress Speed Optimization and Zen Cart / Drupal / MODX / Moodle / Joomla CMS Upgrades. Achievements: ✅ Cleaned 5000+ websites successfully from malware with security enhancement. ✅ Conducted 1,000+ seamless website migrations. ✅ Completed more than 500 SSL installations. ✅ Optimized speed of 200+ WordPress websites. Services Offered: 1. Malware and Virus Removal (Cleaning Hacked Websites and Servers): ✔ Guaranteed 100% cleanup of websites, including databases from malicious code. ✔ Remediation of WP-VCD malware, backdoors, malicious javascript and conditional redirects. ✔ Specialized solutions for japanese keyword hack, SEO spam / pharma hack, credit card stealers and ecommerce malware. ✔ Google blacklist removal (This site may be hacked, The site ahead contains malware), google deceptive warning fix. ✔ McAfee SiteAdvisor, norton blacklist or any VirusTotal based blacklist fix. 2. Website Security Maintenance: Strategic security enhancements and guidance for future-proofing your digital assets. 3. Website Transfer and Migration: Expert transfer of websites to new hosts or domains for any PHP-based CMS or custom-coded websites, including seamless email migration 4. WordPress Development and Troubleshooting: Comprehensive development and issue resolution, including critical and fatal error fixes. 5. SSL Installation and HTTPS Migration: Seamless migration from HTTP to HTTPS with secure padlock implementation. 6. HTTP Security Headers Fix: Implementation of essential security headers to protect your web application from common vulnerabilities and threats. 7. Linux Server Administration: Efficient server management promoting optimal performance and security. 8. WordPress Speed Optimization: Proven methods to enhance website performance following Google PageSpeed and GTmetrix standards. 9. Domain & Advanced DNS Management: ✔ Expert management of domain settings and DNS configurations to ensure seamless website accessibility and performance. ✔ Configuration and troubleshooting of DKIM, SPF, and DMARC records to enhance email security and deliverability. 10. CMS Upgrades: Upgrading Zen Cart, Drupal, MODX, Moodle and Joomla to their latest stable versions. If you're looking for a trusted partner to secure, optimize and enhance your digital operations, I am here to deliver superior solutions tailored to your needs. Let's collaborate to ensure your website is both secure and performing at its peak!

I have 9+ years of work experience in Linux server support/administration and maintenance. I have been designated as level 4 server admin for server administration, Apache/MySQL performance tuning, shell scripting, ticket handling and troubleshooting network outage problems. My role is to: * Linux - Troubleshooting various issues by checking logs - OS : CentOS, Debian, Ubuntu. * Hosting server - Harden dedicated server, node, vps for its best performance. * CMS - WordPress, Joomla, Drupal, Magento. * Virtualization - OpenVZ/Virtuozzo, VMware, Xen, KVM * Networking - To configure network, add/remove IP address * DNS - Bind/named, configure custom and registrar nameservers * VPN - OpenVPN, configuration of squid proxy servers * Firewalls - Iptables, CSF, APF * Web servers - Apache, Nginx (standalone), Nginx Admin, Lighttpd, Tomcat * E-mail servers - Exim, Postfix, Qmail, Courier- dovecot * Anti-spam/antivirus - ClamAV, Maldet, SpamAssassin * Bulk email marketing - DKIM & SPF, tweaking SpamAssassin * Automation - Experienced in bash/shell scripting * Monitoring Tools - Nagios, Zabbix, Pingdom My other skills are given below ================== Amazon Web Services (AWS) ================== - AWS EC2 Server setup - Management and troubleshooting - S3 Buckets - AWS Lightshail Server - AWS SES Email Setup (Configuration in Sendy) ================== Webhosting Control Panel ================== - cPanel/WHM, Plesk, Centos Webpanel, VestaCP, ZPanel, Kloxo, Webmin/Virtualmin, CyberPanel - Any free or paid control panel installation + Setup - cPanel installation and configuration - Server Hardening the security - Manage Linux server on monthly bases - Server Migration ================== WordPress ================== - WordPress Server Setup - WordPress Migration - WordPress Malware Removal - WordPress Virus Removal - WordPress Security - Import demo contents - WordPress Backup/Restore - WordPress and WHMCS integration ================== Linux Server Management ================== - Setup and manage AWS or Google Cloud Server/Google Cloud Platform - AWS, GCP, Digitalocean, Linode, Vultr, OVH, Contabo, 1and1, VPSDime, etc... - Godaddy, Hostgator, BlueHost, Siteground, Namecheap, etc.. - Linux ( RHEL, CentOS, Ubuntu,Debian ) - Database Administration (MySQL,PostgreSQL, MariaDB, MongoDB) - DNS Server (Bind, NSD, PowerDNS ) - Web Server (LAMP, LEMP) ==================

Linux & Windows Server Administrator with more than 14 years of Experience. - Amazon, OVH, BlueHost Digital Ocean, Godday, Hostgator, Linode, Media Temple Google Cloud, Windows Azure, Alibaba, Shared and Dedicated hosting expert - Docker, bastion host, Kubernetes, Ansible - Apache, IIS, Nginx, Tomcat, Varnish, Mod_pagespeed - Control Panel: Cpanel, WHM, Plesk, Ensim, Webmin, Virtualmin, VestaCP, Vmware, Hyper-v. - OS: CentOS, Debian, RHEL, Ubuntu, Windows Server. - Mail Server: Exim, Postfix, Sendmail, PowerMTA, InterSpire, Sendgrid - Database: Mariadb, MySQL, SQL Server, PostGreSQL - DNS: Domain management, MX, CNAME, SPF, DKIM, TXT, Cloudflare, CDN firewalls - WebSite Setup, Optimization and Migration Support for Wordpress, Joomla, Net, Magento, Xcart, Opencart based websites - Experience with Chef, Puppet, Docker or similar applications - SSL Setup, Website Security, Server Hardening, Windows Linux Maintenance Troubleshooting, and Monitoring. And More.