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Hi, I’m Udantha 👋 — a Systems Engineer & DevOps/Hosting Specialist with 7+ years of hands-on experience in: Linux system administration WordPress troubleshooting Docker deployments CloudPanel / Plesk / cPanel hosting Server migrations & backup recovery Virtualization & Cloud Operations DNS, Email (DKIM/DMARC/SPF), SSL, and security hardening MySQL/MariaDB performance tuning Website performance optimization Cloud deployments on AWS / DigitalOcean / Linode I specialize in fixing broken systems, optimizing slow servers, and performing clean, zero-downtime migrations—the kind of work where precision matters. Clients hire me for tasks that need someone who can quickly diagnose, clean up, and stabilize complex environments: 🛠 I Can Help You With: Server security hardening & performance tuning Database fixes, recovery, and replication Cloud server setup (Ubuntu, Debian, Rocky, Alma) Fixing DNS, email deliverability & hosting issues Restoring crashed websites (Digital Ocean, AWS, Google, IONOS, Bluehost, SiteWorx, etc.) WordPress errors, migrations, malware cleanup Web servers such as Nginx / Apache SSL configurations Docker Configurations Backup strategy design (Acronis, B2, rsync, S3, Plesk backup) ⚡ Why Clients Like Working With Me I solve problems fast I provide clean documentation after every job I communicate clearly and don’t overpromise I’ve rescued dozens of servers & websites from disaster If you're looking for someone reliable who can stabilize your servers, fix urgent issues, or manage complex migrations with zero drama — I’m available and ready to help. Let’s get your systems running smoothly again. 🚀

✅ Self-motivated Linux Server Administrator and Network Administrator with more than 10+ years of working experience with different Cloud providers. Ready to take up any challenge. ✅ Expert on, 💎 AWS, Google Cloud, Azure, DigitalOcean or onPrem server management. 💎 Setting up and manage different environment Web Server, Database Server, Mail Server, Load Balancer, Optimization and Security. 💎 Designing Web Server - Building web server based on Apache, Nginx, Nginx/php-fpm, Varnish as backend with high performance tuning and major security issues. 💎 Learning Management Systems – Moodle (Expert) including mobile app (Android & Apple IoS) customization 💎 Document Management Systems – Nextcloud (Expert) and onlyoffice 💎 Security - Malware removal, server hardening using firewall rules, restriction in server login, Web security, Security auditing, fail2ban, mod_security for web attack, mod_evasive DDOS attack prevention, Firewall setup CSF, UFW and iptables. Prevention from mail attack, SSL Certificate installation. 💎 Database Server - Building MySQL, Mariadb database server with high performance , troubleshoot database server problems, tweaking MySQL variables for performance. 💎 Scripting - Bash Scripting for monitoring servers, auto backup. 💎 Mail server- Building mail server for sending and receiving mails postfix, sendmail, setup mail client Roundcube, SquirrelMail, Rainloop, Horde. Dovecot for POP & IMAP, troubleshoot mail issues, configure mail for delivery in inbox. 💎 Monitoring services and servers – LibreNMS, Nagios monitoring tools, tweaking as per requirement, monitor servers using bash script, Tripwire. 💎 Amazon - AWS EC2 server setup, Security. 💎 Cloud Servers & Panel - Management of Ubuntu, Centos, Cpanel, CWP, WHM, Plesk, Webmin, Diretadmin, ISPConfig, JustHost, Godaddy, Linode, Rackspace, Amazon. 💎 Migration - Server migration, website migration, database server migration, mail server migration. 💎 VOIP Solutions - Asterix based PBX (Eg: VitalPBX) 💎 Video conferencing - Zoom (including on premise setup), Jitsi, BigBlueButton 💎 Virtualization Technology - VMware VSphere Esxi, KVM, Xen Server 💎 Networking (CCNP R&S and SP certified) - Hands on experience with CISCO, HP, Extreme, Juniper devices including wireless. 💎 Firewall configurations - Hands on experience with Palo Alto, Check point and Cisco ASA firepower. ✅ Please do not hesitate to contact me to discuss your project in detail and determine how my skills will positively contribute to your team.

🚀 WordPress Speed Optimization Specialist | High-Performance WooCommerce Is a slow website costing you sales? In e-commerce, every second of delay drops conversion rates. I help business owners transform sluggish WordPress setups into lightning-fast, revenue-generating machines. I go deeper than standard developers. I optimize the entire stack from site-level plugin configurations to server-level root tweaks, ensuring your store is secure, stable, and passes Google’s Core Web Vitals. I've optimized WooCommerce stores from sub-30 to 90+ PageSpeed scores while cutting server response times by over 60%. My Core Expertise: Advanced Speed Optimization: I achieve 90+ Google PageSpeed scores by optimizing the "engine" of your site database queries, asset loading, and caching strategies. Server-Level Tuning: I don’t just rely on plugins. I configure VPS environments (using DirectAdmin, CyberPanel), manage DNS, and fine-tune Cloudflare to reduce Time to First Byte (TTFB) and handle high traffic. WooCommerce Scalability: I streamline checkout flows and database structures to keep your store running smoothly, even with thousands of products or concurrent visitors. Why Work With Me? Root-Cause Solutions: I understand the code behind the CMS. I fix the bottlenecks at the source rather than applying temporary “band-aid” plugins. Long-Term Reliability: You receive 6 months of complimentary maintenance updates to ensure your optimizations remain stable and secure. 🤝 Free Consultation Available 📞 Hop in for a Zoom call, and you’ll have 30 minutes of consultation for FREE. ✔️ I can audit your current server setup and identify exactly what is slowing you down, no strings attached.

Hello there! 👋 I help businesses secure, manage, and automate devices with Microsoft Intune, ensuring compliance, zero-touch onboarding, and a seamless end-user experience. If you’re looking for a proven Intune Expert who delivers fast and reliable results, you’re in the right place. 👨‍💻About Me: 👨🏻‍🎓 Microsoft Certified Professional (since 2020) 💻 7+ years as a Microsoft Modern Workplace / Intune Engineer 🏆 50+ Successful Intune Implementations (SMEs + Enterprise) 📲 5000+ Cross-platform devices onboarded 💼 Work experience with IT Teams and Business Owners worldwide 🔑Key Areas of Expertise: ✔Live Intune Support & Consultation ✔MDM for Windows, macOS, iOS & Android ✔MAM for BYOD (iOS, Android, Windows) ✔Endpoint Security with Microsoft Defender for Endpoint ✔Windows Autopilot (Cloud + Hybrid) for Zero-Touch deployment ✔Conditional Access & Identity-based Access Controls ✔Simplified App Deployment across all platforms ✔Entra Hybrid Join, Co-Management (SCCM + Intune) ✔Automated Device Enrolment (ADE) via Apple Business Manager ✔PowerShell Automation & Policy Deployment ✔CIS / NIST Aligned Security Hardening ✔Ongoing Support, Optimization & Maintenance 🎓Certifications: ✔Microsoft 365 Certified: Endpoint Administrator Associate ✔Microsoft 365 Certified: Administrator Expert ✔Microsoft Certified: Azure Administrator Associate ✔Microsoft Certified: Azure Fundamentals ✔MCSE: Core Infrastructure ✔MCSA: Windows Server 2016 🚀Recent Projects: ✔Implementation of Hybrid Entra Join for Intune Enrollment ✔Windows device hardening with CIS Best Practices ✔Automated Device Enrollment via Intune for MacOS 🤝What You Can Expect Working With Me: ✔ Clear communication & regular progress updates ✔ Best-practice, security-first configurations ✔ No downtime approach for production environments ✔ Post-implementation documentation & knowledge transfer If you’re ready to modernize, secure, or optimize your Intune environment, let’s talk. Please send me your requirements, and I’ll propose the best next steps. 🤝

If your VPS, Linux server, or email system is broken, misconfigured, or throwing errors — I can fix it safely and correctly. I’m a Linux System Administrator with hands-on production experience handling VPS servers, email systems, migrations. and WordPress hosting. I specialize in troubleshooting and fixing issues, not guessing or reinstalling blindly. What I can help you with: • Linux & VPS troubleshooting (Ubuntu) • Fix 502 / 504 / mail delivery errors • Email server setup & migration (Sendy, Postfix, Mail apps) • Server migrations (VPS to VPS, zero or minimal downtime) • Nginx & basic server performance tuning • Security hardening & cleanup Why clients choose me: • I diagnose before touching anything • I explain the issue clearly • I focus on stability, not quick hacks If you’re unsure what’s wrong — message me with the problem. I’ll tell you honestly if I can help before starting.

Hello! I’m Nadheera Senasinghe, a cybersecurity professional and AI security specialist with a proven record of protecting enterprise infrastructures, securing AI-powered applications, and leading digital transformation initiatives globally. As the Chief Project Manager and Co-founder of Red Threat Cyber Security (RTCS), I lead a team of expert ethical hackers, AI engineers, and compliance auditors delivering tailored cybersecurity and AI solutions for startups, healthcare providers, fintech platforms, SaaS companies, and regulated enterprises. 🔐 Cybersecurity Services Offered: • Penetration Testing & Ethical Hacking – Web, Mobile, API, IoT, and Network Pentesting – OWASP Top 10, SQLi, XSS, CSRF, RCE, RFI, and Serialization Attacks – Red Teaming, Adversary Emulation, and Purple Teaming – Pentesting for LLM/GPT apps (prompt injection, model exploitation) • Managed Security Services (MSSP) – SIEM (Splunk, Azure Sentinel, QRadar) & SOAR – 24/7 Threat Monitoring, EDR/XDR Deployment – SOC/NOC Architecture & Incident Response Playbooks • Cloud Security & DevSecOps – Cloud Audits (AWS, Azure, GCP), Zero Trust Design – Kubernetes & Docker Security, CI/CD Hardening – Infrastructure as Code (IaC) Reviews • Governance, Risk & Compliance – HIPAA, GDPR, ISO 27001, NIST CSF, SOC 2, PCI-DSS – Risk Assessments, DPIAs, Gap Analysis & Internal Audits • Threat Intelligence & OSINT – Corporate Recon, Espionage Risk Identification – Executive Profiling, Dark Web Monitoring • CISO-as-a-Service & Awareness Training – Virtual CISO Engagements – Custom Security Awareness Workshops 🤖 AI & GPT Integration Services: • LLM & GPT Security – Prompt Injection Prevention – Jailbreak Testing, Output Control – Secure API Wrapping & Audit Logging • Custom GPT Application Development – SEO GPT (w/ Moz API), Compliance GPT, Pentest GPT – Retrieval-Augmented Generation (RAG) Systems – Red Mallory: A proof-of-concept GPT demonstrating AI vulnerabilities (for research/awareness) • Secure AI Deployments – LLM System Design with Role-Based Access & Token Control – Data Leakage Protection for AI Systems – AI-driven Compliance Automation Tools 🎓 Certifications & Tools: • ISC² Systems Security Certified Practitioner (SSCP) • NIST CSF Practitioner | Google Project Management Certified • Tools: Burp Suite, Metasploit, Nessus, Nmap, Splunk, Nikto, IriusRisk, Wireshark, Threat Modeler, Microsoft TMT, DirBuster, OpenVAS 🌍 Client Locations & Industries Served: We’ve delivered successful projects in the USA, UK, UAE, Canada, Mexico, Belgium, Ghana, Hungary, and Latvia, serving sectors like: • Healthcare & HIPAA Platforms • Fintech & Payment Systems • SaaS & LLM-Based Startups • E-Commerce, Oil & Gas, Real Estate, and Public Sector Projects include HIPAA audits, fintech pentesting, red teaming for remote-first organizations, cloud security assessments, GPT app development, and cyber defense automation. 🚫 Please Note: I do NOT offer personal hacking, scam recovery, crypto wallet recovery, or any illegal services. 📩 Let’s Work Together! Whether you're building secure AI applications, improving your cyber defense posture, or seeking compliance-ready solutions—I bring hands-on leadership, global delivery experience, and technical excellence to every engagement. Let’s secure your digital future together.