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Linux server/VPS management, performance, monitoring, and hardening; DDoS mitigation with ModSecurity and CSF firewall protection; email deliverability. #4 contributor worldwide on Spamhaus Threat Intelligence (100K+ threat monthly reports) and AbuseIPDB (1000K+ reports since 2025) - I identify cyber threats before they hit your servers, and I maintain real-time threat intelligence for global networks. #1 developer ranking on Stack Overflow Spanish (16K+ reputation) in 2022 with solutions trusted by thousands of developers. Skills: Linux Sysadmin, WHM/CPanel, HestiaCP, VestaCP, LAMP, LEMP, Varnish, Cloudflare, WordPress protection, hosting, PHP, MySQL, malware, webmaster, Apache, Exim, ModSecurity, CSF Firewall, networking, and security. Has your Linux server crashed? Or with CPU spikes? Or under DDoS attacks? I've been solving system crises 24/7 for over 25 years. Problems Solver and so on... My clients networks: OVH, Digital Ocean, Bluehost, Interserver, AWS, Linode, Google Cloud, GoDaddy, Hetzner, Hostinger, Contabo, Azure Microsoft, NetCup, NameCheap, AsmallOrange, BudgetVM, Comvive, DotBlock, FastHost, HostRocket, Liquidweb, and a long so on. Long experience. Since 1993 I've been working with computers for companies like IBM (12 years).

I am a System Administrator and Cloud Engineer with over 10 years of professional experience in cloud computing, system administration, and IT security. I bring a strong academic foundation and hands-on expertise to deliver innovative and secure IT solutions. My technical skills span cloud platforms like AWS, Microsoft Azure, Google Cloud, and Digital Ocean, as well as system administration for Linux and Windows servers. I am proficient in the following areas, • Cloud Service Amazon Web Service | Azure | Google Cloud | IBM Cloud | Digital Ocean | Vultr | Linode | UpCloud | Hetzner | Scaleway • Amazon Web Services (AWS) EC2 | ECS | RDS | S3 | Route 53 | IAM | Cloud Watch | SES | SNS | ELB | Certificate Manager | VPC | Glacier | Autoscaling | CodeCommit | CodePipeline | Guard Duty | Elastic Beanstalk | CloudFront | IPAM | CloudTrial | Cloud Watch | Global Accelerator • System Administration Windows Server | Linux Server | KVM | Proxmox | VMware ESXI | Hyper-V | Server Migration | Server Monitoring | Server Management | Server Optimization | 3CX | Twilio Elastic SIP • CMS WordPress | WordPress Migration | WordPress Speed Optimization | WordPress HA | Ghost | Medium | Laravel Installation | Laravel Site Migration • Database MongoDB | PostgresSQL | MySQL | MariaDB | DB Optimization • Windows Server Active Directory | Group Policy | IIS | Exchange | DNS Server | RRAS | Windows Firewall • Linux Nginx | Apache | MySQL | PHP | UFW | Iptables | Git | Let’s Encrypt | OpenVPN | SoftEther | MariaDB | Dovecot | Fail2Ban | Grafana | LEMP | LAMP | WireGuard | Redis | Docker • Cloud Tools CyberPanel | Lite Speed | RunCloud | CloudWays | GridPane | Ploi | Plesk | cPanel l Virtualmin | Webmin • Networking Cisco Routing and Switching | Mikrotik | OpenWRT | Generic Router | VPN • Mail Server Setup and Management Postfix | SendMail | Amazon SES | MailWizz | Mandrill | SendGrid | Server Blacklisting and Bounce Management | Sendy | SPF | DKIM | DMARC | MailGun | Sendinblue • Workspace Amazon Workspace | Google Workspace | Office365 | AzureAD | AWS AD | Zoho Workspace | Zoho Mail | Proton Mail | NextCloud | OwnCloud I hold multiple certifications, including: • AWS Certified Solutions Architect – Professional • AWS Certified Security – Specialty • AWS Certified Solutions Architect – Associate • Microsoft Certified: Azure Administrator Associate • Certified Ethical Hacker (CEH) • AWS Authorized Instructor As a Top Rated Plus Freelancer on Upwork, I have successfully delivered projects involving cloud migrations, infrastructure optimization, DevOps automation, and IT security enhancements for global clients. My passion for learning extends to IoT development and cybersecurity research, with published work on global bandwidth optimization and web-based systems. Let’s collaborate to solve your IT challenges with scalable and secure solutions!

🔻 Upwork TOP RATED PLUS 🔻 ⭐⭐⭐⭐⭐“I have worked with Israel for a while now. As always, he is informative, follows my directions well and goes the extra mile to make sure his work is done to a high standard.” ⭐⭐⭐⭐⭐“I highly recommend Israel for any AWS tasks you might have. Anytime again. I am more than happy to work on further AWS tasks with Israel.” ⭐⭐⭐⭐⭐“Israel's ability to follow direction from a project manager was exemplary. His skills at server admin tasks and the technology required to complete the project was very good. Will be using him again in the future for similar projects.” I'm one of the highest-rated AWS SysOps freelancers on Upwork with numerous 5-star reviews, including overly positive feedback, and 100% of job success. I have helped many companies optimize their applications, make the leap and migrate to the cloud, increase the security of their infrastructure, and optimize the cost of deployed resources. I am a passionate and self-motivated system administrator with over 18 years of experience in Linux & Windows system administration. For the past 6 years, I have specialized in AWS and have worked on a variety of application migration and infrastructure design projects to the cloud. I am always ready to apply my experience and know-how. I hold the following official AWS certifications ✅ AWS Certified Solutions Architect ✅ AWS Certified SysOps Administrator ✅ AWS Certified Developer These are some of the projects I have successfully managed on AWS: ☁︎ High availability websites deployment: using EC2, Autoscaling, Elastic Beanstalk, EFS, RDS, CloudFront, ElastiCache, CodeCommit, CodePipeline, ALB/ELB, WAF ☁︎ Designed and built scalable, high-availability infrastructure for WordPress sites with millions of visits per month ☁︎ Applications migration to AWS ☁︎ Database migration to AWS: using RDS and Aurora ☁︎ Deploying Docker Containers on AWS with ECS, Fargate, and Elastic Beanstalk ☁︎ Connect On-Premises Data Center to AWS: using VPN tunnels, Ubiquiti routers, OpenVPN, and pfSense appliances ☁︎ Code management: using CodeCommit and CodePipeline for staging and production environments ☁︎ Cost optimization: analyzing in detail all infrastructure components and optimizing it to lower monthly cost ☁︎ VDI deployment: using Amazon Workspaces ☁︎ Mail server migration to Amazon Workmail ☁︎ Backup strategy for EC2 instances and EBS volumes to S3, Glacier or external storage ☁︎ Active Directory services: using AWS Directory Services, joining on-premises machines and EC2 instances to Active Directory I have experience with the following VPS providers, among others: Scaleway, Hetzner, Digital Ocean, Vultr, Dreamhost, Godaddy, Linode, 1&1, OVH... I am honest and reliable, always willing to go the extra mile and open to new knowledge. Feel free to contact me if you need anything not listed in my profile.

I know the entire Google Ad Manager environment. I also have knowledge of all the formats of programmatic advertising and how works all the demands (HB, OB, AdX, TAM, UAM...) and I use the Excel package (or equivalent) with ease. Also I have strong knowledge of paid media in DV360 as trafficker in display, video and CTV campaigns.