Performance & Security Hardening - Service by Dev Marlon Costa on Guru

Dev Marlon Costa

Queimados, Rio de Janeiro, Brazil

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Member Since: Feb 2026

Senior Full-Stack Developer with 7+ years of experience and a proven track record of delivering over 800 successful web projects. My background in Mathematics allows me to approach software …Read More.

Programming & Development Networking, Hardware & System Admin

Performance & Security Hardening

$15/hr Starting at $300

Is your website slow or compromised? I provide expert technical intervention to restore security and maximize performance.

Core Web Vitals Optimization (Targeting 90+ scores)
Malware Detection, Removal, and Security Hardening
Database Performance Tuning & Query Optimization
Server & DNS Configuration for High Traffic

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$15/hr Ongoing

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Is your website slow or compromised? I provide expert technical intervention to restore security and maximize performance.

Core Web Vitals Optimization (Targeting 90+ scores)
Malware Detection, Removal, and Security Hardening
Database Performance Tuning & Query Optimization
Server & DNS Configuration for High Traffic

Skills & Expertise

Malware RemovalPerformance EngineeringPerformance TuningSecurity ConsultingWeb DevelopmentWebsite Traffic

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