Bladimir F.

Senior Cloud & Infrastructure Engineer | Security | Linux | Networking

🏆 Top Rated Plus | 100% Job Success | $100K+ Earned | 60+ Contracts I am a Senior Cloud & Infrastructure Engineer with 15+ years of experience designing, troubleshooting, securing, and modernizing production environments across Linux, networking, AWS/cloud, monitoring, automation, and security operations. I specialize in complex technical environments where organizations need more than basic IT support—whether that's resolving a production outage, designing network architecture, building cloud infrastructure, implementing monitoring and centralized logging, strengthening security, or troubleshooting problems spanning multiple technologies. My approach is simple: understand the environment, identify the root cause, implement the right solution, validate the results, and document the work. 🔹 INFRASTRUCTURE & LINUX ENGINEERING I design, deploy, troubleshoot, optimize, and secure production infrastructure involving: • Ubuntu, Debian, RHEL/AlmaLinux • Linux systems administration & hardening • Docker & containerized workloads • PostgreSQL, MySQL & Redis • Infrastructure migrations & modernization • Performance & availability troubleshooting • Backup, recovery & disaster recovery • Production incident troubleshooting 🔹 NETWORK ENGINEERING I work with enterprise and service-provider network environments, including: • BGP & advanced routing • Carrier-Grade NAT (CGNAT) • A10 Thunder CGN • Arista & Cisco switching/routing • Fortinet/FortiGate • VLANs, VRFs, NAT, ACLs & policy routing • Public IPv4 & multi-provider routing • WireGuard & site-to-site VPNs • Packet analysis & complex network troubleshooting I am particularly comfortable solving problems that cross networking, Linux, applications, firewalls, cloud infrastructure, and upstream providers. 🔹 AWS, CLOUD & DEVOPS I help organizations design, operate, troubleshoot, and secure cloud and hybrid infrastructure: • Amazon Web Services (AWS) • Microsoft Azure & Microsoft 365 • Google Cloud & Google Workspace • Cloud networking & security • IAM & access-control reviews • Docker & infrastructure automation • CI/CD supporting infrastructure • Cloud migrations • Architecture, reliability & security reviews 🔹 MONITORING, LOGGING & OBSERVABILITY I build monitoring and centralized logging environments that help teams identify problems, improve visibility, and reduce incident-resolution time. Technologies include: • Zabbix • Graylog & OpenSearch • Datadog • Prometheus • Syslog & centralized logging • Infrastructure/application telemetry • Alerting & escalation workflows 🔹 SECURITY OPERATIONS & INFRASTRUCTURE SECURITY My infrastructure work incorporates security from the beginning, with experience involving: • Microsoft Defender / Defender XDR • CrowdStrike Falcon • Microsoft 365 & Google Workspace security • AWS security & IAM • Endpoint & email security • Vulnerability management • Infrastructure hardening • Incident investigation & remediation • Security monitoring & logging • SOC 2, ISO 27001 & HIPAA technical security support I work with DevOps, Infrastructure, Development, and Security teams to turn findings into practical remediation plans and measurable improvements. 🔹 AUTOMATION I use Python, Bash, PowerShell, APIs, and automation tooling to eliminate repetitive operational work and improve infrastructure reliability. 🔹 WHY CLIENTS HIRE ME ✓ Senior-level troubleshooting and root-cause analysis ✓ Infrastructure and network architecture expertise ✓ Hands-on implementation—not just recommendations ✓ Security-minded engineering ✓ Clear communication with technical and business stakeholders ✓ Careful production changes and validation ✓ Documentation and knowledge transfer ✓ Ability to work independently or alongside engineering teams 🔹 PROJECTS I CAN HELP WITH ✓ Linux/server troubleshooting & infrastructure engineering ✓ Network architecture, BGP, CGNAT, routing, NAT & VPNs ✓ AWS/cloud architecture, migrations & security reviews ✓ Microsoft 365 & Google Workspace infrastructure/security ✓ Zabbix, Graylog, OpenSearch & Datadog implementations ✓ Infrastructure security assessments & hardening ✓ Vulnerability remediation & incident investigation ✓ Infrastructure automation & technical architecture reviews If you're dealing with a complex infrastructure, networking, cloud, monitoring, or security challenge, send me a message describing your environment and what you're trying to accomplish. Let's identify the right solution and get it implemented correctly.