Computer Security Consultants For Hire
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Hire iosifpeterfi
I've spent the last 15 years building and running the systems that businesses actually depend on. Most of my work falls into three buckets: taking a SaaS product from Software Architecture through to production on AWS (React, Angular, Vue.js or Next.js up front, Node.js, Python, PHP or Java behind the REST API,...I've spent the last 15 years building and running the systems that businesses actually depend on. Most of my work falls into three buckets: taking a SaaS product from Software Architecture through to production on AWS (React, Angular, Vue.js or Next.js up front, Node.js, Python, PHP or Java behind the REST API, PostgreSQL, MySQL, MongoDB, MariaDB or SQL Server underneath), wiring together the Cloud Computing and DevOps layer (Docker, Kubernetes, CI/CD pipelines, Ansible, Nginx, Apache, DNS, SSL, cPanel, Web Hosting, Virtualization), and then hardening everything with Cloud Security and Performance Tuning so it doesn't fall over at 2am. Where I add the most value is in Infrastructure Architecture and Systems Engineering decisions early on — Database Design, API Development contracts, security and observability before they become expensive. I've done this for e-commerce platforms (Shopify, WooCommerce, Magento) to ERP rollouts (Zoho, ERPNext, PowerApps) to enterprise governance and workflow systems (Spring Boot, BPMN, Microsoft Graph, n8n, ProcessMaker, Joget, Flowable, role-based access, audit trails) to custom Data Analytics pipelines, Excel reporting and BI dashboards. More recently I've been doing AI Development work — integrating LLMs, Prompt Engineering, and Typescript-based tooling into real workflows. Not the hype kind, but practical automation that saves time. I write Shell and Python scripts the way some people write emails: constantly. If something can be automated, it probably should be. CompTIA Security+, Microsoft MCSE/MCSA/MCITP English (C2), German (C1), Romanian (native) Based in Germany. NDA-friendly. less -
Hire engkarimismail
engkarimismail engkarimismail
$50 USD / hour
✅Senior Network & System Engineer | Security|VOIP✅Malaysia✅ About Me I am an experienced IT professional with expertise in server administration, networking, virtualization, and security. My skill set spans managing server operating systems, configuring directory services, implementing DNS/DHCP solutions, and deploying virtualization platforms. I have a strong background in...✅ About Me I am an experienced IT professional with expertise in server administration, networking, virtualization, and security. My skill set spans managing server operating systems, configuring directory services, implementing DNS/DHCP solutions, and deploying virtualization platforms. I have a strong background in firewalls, scripting, containerization, and database management. Additionally, I specialize in mail servers, backup systems, and cloud technologies. With advanced networking skills, including Cisco routing, VLAN management, VoIP/IP telephony, and penetration testing, I am well-equipped to handle complex IT infrastructures. I am dedicated to delivering reliable solutions, ensuring data integrity, and enhancing system performance. ✅Send me now 24/7 Availability Unlimited Revisions Fast Response ✅ Server Operating Systems Windows Server (2003 to 2024) | Ubuntu | CentOS | Debian | RHEL ✅ Directory Services Active Directory | OpenLDAP ✅ DNS and DHCP Windows Server DNS | DHCP | Linux DNS | DHCP ✅ Virtualization Microsoft Hyper-V | VMware ESXi | vCenter | Proxmox VE ✅ File Servers IIS FTP | proftpd | FileZilla | FTP Server | Samba ✅ Web Servers Apache | NGINX | Microsoft IIS ✅ Scripting and Automation PowerShell scripting | Bash scripting ✅ Containers Docker | Windows Subsystem for Linux (WSL) ✅ Backup Systems Veeam Backup | Iperius Backup | UrBackup ✅ Mail Servers Mailcow | Microsoft Exchange (2000–2019) | MailWizz | Postfix | EXIM ✅ Database Servers MySQL | PostgreSQL | MariaDB ✅ Firewalls and Security MikroTik | PFSense | Cisco Firewalls ✅ Networking Skills Cisco Routing and Switching | VLANS | OSPF | VoIP and IP Telephony | Network Penetration Testing Access Control Lists (ACLs) Security (MITM Attack Mitigation) ✅ Recovery Services Password recovery for accounts and routers | Disaster recovery planning ✅ VOIP Service Freepbx | freeswitch | CME | IP TELEPHONY | 3CX SYSTEMS ✅ Cloud Service AWS, DigitalOcean, Hetzner, Azure, Google Cloud Platform, IBM Cloud, Oracle Cloud, Alibaba Cloud, Contabo, Seva less -
Hire rashidamjad
Rashid Tech Solutions is a systems-focused engineering and development company with 5+ years of hands-on experience across software, cloud, automation, electronics and embedded systems. We build reliable solutions where software, hardware and cloud technologies work together smoothly. Core Expertise Web, SaaS &...Rashid Tech Solutions is a systems-focused engineering and development company with 5+ years of hands-on experience across software, cloud, automation, electronics and embedded systems. We build reliable solutions where software, hardware and cloud technologies work together smoothly. Core Expertise Web, SaaS & UI/UX: PHP, Python, JavaScript, TypeScript, React, Node.js, Laravel, Django, Next.js, .NET, SQL, WordPress, Webflow, Wix, responsive websites, dashboards, portals, APIs and UI/UX. eCommerce & Payments: Shopify, WooCommerce, Magento, PrestaShop, Stripe, PayPal, subscriptions, checkout, shipping, inventory and ERP/accounting integrations. Mobile & Desktop Apps: Android, iOS, Flutter, React Native, Python, .NET/WPF, Electron.js, APIs, databases and integrations. Cloud & DevOps: AWS, Azure, GCP, Docker, Kubernetes, CI/CD, GitHub, GitLab, Linux, Windows Server, Nginx, Terraform, Ansible, VPS, monitoring, backups and security. Automation & Integrations: Zapier, n8n, Make.com, Power Automate, Airtable, Brevo, Stripe automation, APIs, webhooks, bots, CRM automation and data sync. Enterprise Solutions: Odoo, Zoho, Salesforce, Dynamics 365, SharePoint, Power BI, Power Apps, Microsoft 365, CRM/ERP, Business Intelligence and dashboards. Accounting, Payroll & Excel: QuickBooks, Xero, payroll, invoicing, Teams integrations, Excel, VBA, Power Query, dashboards, financial models, reporting and API/database integrations. Electronics, PCB, Embedded & IoT: PCB design/layout, schematics, firmware, STM32, ESP32, Arduino, Raspberry Pi, ARM, RTOS, I2C, SPI, UART, BLE, WiFi, MQTT, NFC, LoRa, Zigbee and RF. PLC, SCADA & Industrial Automation: PLC, SCADA, HMI, instrumentation, motor/control systems, robotics, machine vision, motion control and equipment integration. Mechanical CAD/CAM & CNC: SolidWorks, Fusion 360, AutoCAD, CATIA, Siemens NX, Mastercam, 3D CAD, assemblies, enclosures, sheet metal, DFM, CNC, toolpaths and G-code. AI & Computer Vision: Generative AI, LLMs, AI agents, chatbots, Machine Learning, TensorFlow, OpenCV, OCR, object detection, image recognition and video processing. Blockchain & Trading: Smart contracts, DApps, Ethereum, BSC, Polygon, Solana, MT4/MT5, MQL4/MQL5, TradingView, Pine Script, Binance, broker APIs, EAs and trading bots. Marketing & Automation: Google Ads, conversion tracking, Google Analytics, technical SEO, YouTube optimization, TikTok content, video editing, Brevo, HubSpot, Zoho, Zapier, Make.com, Airtable, email campaigns and lead workflows. Networking & Communications: VPN, firewall, SSL, DNS, Active Directory, OpenVPN, VoIP, SIP, Asterisk, PBX, WebRTC, virtualization and system administration. Team & Delivery: Our multidisciplinary team covers software, cloud, electronics, embedded systems, automation and engineering. I personally oversee communication, technical direction and delivery. Post-Delivery Support: Documentation, fixes and ongoing support are available after handover. less -
Hire raphaelokekeze
I’m a web designer and developer with over 15 years of experience building, fixing, and improving websites across many industries. Over the years, I’ve worked on everything from simple landing pages to complex, custom-built platforms, which gives me the flexibility to handle a wide range of projects without...I’m a web designer and developer with over 15 years of experience building, fixing, and improving websites across many industries. Over the years, I’ve worked on everything from simple landing pages to complex, custom-built platforms, which gives me the flexibility to handle a wide range of projects without guesswork. I work extensively with WordPress and Elementor, and I’m comfortable across platforms like Shopify, Webflow, Wix, and other CMS tools. My core stack includes HTML, CSS, PHP, JavaScript, and jQuery, so I can go beyond templates and deliver custom solutions when needed. On the design side, I use Photoshop and modern UI practices to create clean, practical designs that are built to perform. A big part of my work involves troubleshooting and repair. If a website is broken, slow, or behaving unpredictably, I can step in, identify the root cause, and fix it properly. I also handle website security, including malware and virus removal, cleaning hacked sites, and resolving issues with websites flagged by browsers or search engines. Speed and performance matter, so I regularly optimize websites that load slowly. This includes improving load times, reducing unnecessary scripts, optimizing assets, and making sure the site runs smoothly across devices. I also focus on onsite SEO, structuring websites so they are search-friendly from the ground up. This includes proper HTML structure, meta data setup, page speed improvements, schema implementation, and ensuring best practices that help improve visibility in search engines. I also handle website migrations between different platforms and hosting environments, including cPanel and Linux VPS servers, making sure everything transfers correctly with little to no downtime. On the marketing side, I build landing pages and automation systems using tools like GoHighLevel, Unbounce, Mailchimp, Klaviyo, and similar platforms. This helps turn traffic into leads and keeps systems running efficiently in the background. With a strong technical foundation and years of hands-on experience, I can take on both straightforward tasks and more complex challenges. Whether you need a site built, fixed, secured, optimized for search, or improved overall, I can step in and get it done. If you need someone who can handle the full scope of web work without constant back and forth, feel free to reach out. Let’s get your project moving. less -
Hire azfatima512
I'm a freelancer with a strong background in web research, web scrapping, data entry, and eCommerce. With over 5 years of experience, I have the knowledge and expertise to help you with your projects. My attention to detail and accuracy make me a reliable source for any task that requires researching, collecting, and...I'm a freelancer with a strong background in web research, web scrapping, data entry, and eCommerce. With over 5 years of experience, I have the knowledge and expertise to help you with your projects. My attention to detail and accuracy make me a reliable source for any task that requires researching, collecting, and entering data. My services are available to you 24/7 to get the job done quickly and accurately. I have the skills and experience to ensure that your projects are completed on time and within the budget. Services and Skills List ✔ Product Searching ✔ Product Listing ✔ Web Development - Shopify, Bigcommerce, WordPress, Woocommerce, E-Commerce, eBay, Opencart, Etc. ✔ PDF into Fillable Forms ✔ PDF, Word, Excel, PowerPoint ✔ Data entry ✔ Typing ✔ Internet research ✔ Data mining ✔ Web research ✔ Web scraping ✔ Lead generation ✔ Bookkeeping ✔ Social Media Management less -
Hire alokraybd
Hello, My name is Alok Ray and I'm a passionate website designer and developer. I have more than 5 years of experience in web design and WordPress..◉✓ I am dedicated to delivering exceptional customer service. I will closely collaborate with you to comprehend your needs and objectives, and I will keep you informed...Hello, My name is Alok Ray and I'm a passionate website designer and developer. I have more than 5 years of experience in web design and WordPress..◉✓ I am dedicated to delivering exceptional customer service. I will closely collaborate with you to comprehend your needs and objectives, and I will keep you informed about the progress of your project every step of the way.⭐ ⭐ ✅ My Skills - ➤ HTML, HTML5 => CSS, CSS3 => Bootstrap => JavaScript ➤ PHP => WordPress => E-Commerce => Woo-Commerce ➤ Blog Installation => cPanel ▶ Website Speed Optimization ➤ Domain-Hosting ➤ Manually migrate WordPress ➤ Increase website security ➤ Website Error Fixing ➤ PSD/Figma TO HTML ➤ PSD/Figma TO WordPress ➤ WordPress Theme Customization ➤ WooCommerce Setup On WordPress ✔️ My top priority when working on a project is to ensure client satisfaction. I am constantly seeking out new challenges to improve my skills and knowledge.⭕ Thank you less -
Hire abusayed2004
abusayed2004 abusayed2004
$50 USD / hour
Ai Voice Agent, Asterisk PBX, SIP, Linux, SecurityBangladeshI am currently seeking long-term remote and on-site job opportunities. With 15 years of experience, I have worked extensively with VoIP, Asterisk, cloud technologies such as AWS and OpenStack, Server security, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, MySQL, and Linux customisation. I...I am currently seeking long-term remote and on-site job opportunities. With 15 years of experience, I have worked extensively with VoIP, Asterisk, cloud technologies such as AWS and OpenStack, Server security, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, MySQL, and Linux customisation. I am also proficient in Python and PHP scriptwriting for IVR and AGI implementation on Asterisk. I have a team for support and further development. My expertise includes: - Ai Voice Agent build and operations multi tenant platform. - Linux - Hosting Systems Administration & Monitoring - Kubernaties, IoT tech stack - Design and implementation of High-Performance SIP SBC - DevOps CI/CD - Service Optimisation - Security Hardening - VoIP, Asterisk, SMS, Dongle, and FreePBX installation, configuration, and maintenance - WebRTC SIP Phone - Infrastructure Planning - Disaster Recovery - Shell Scripting - Capacity planning, application delivery planning - Network Troubleshoot, Spanning Tree, PVST, RSTP, HSRP, RIP, BGP, EGRP, IGRP, MPLS - SAN Troubleshoot - GlusterFS, CEPH - NFS, SMB, ISCSI, SMTP - Linux performance tuning - MySQL, Oracle DB performance tuning - Laravel web application development - Web Security, Web benchmark, best practice - IPTV, Live streaming, VOD, FFmpeg - Raspberry Pi Please let me know if you have any questions or require further information. less -
Hire ihtsham3
Hi, This is Ihtsham Ul Haq. I am a passionate Website developer. I have created Web sites and made happy client. Every thing around me inspires me. Regards! Ihtsham Ul Haq Introducing myself as a web designer/developer. Thanks for visiting my profile. I consider your valuable time so before awarding a job kindly...Hi, This is Ihtsham Ul Haq. I am a passionate Website developer. I have created Web sites and made happy client. Every thing around me inspires me. Regards! Ihtsham Ul Haq Introducing myself as a web designer/developer. Thanks for visiting my profile. I consider your valuable time so before awarding a job kindly contact me and discuss the project in detail. I'm very responsive and I will try to respond your messages as soon as possible.The following are the areas of my expertise: ****Web Design & development**** o PSD to wordpress o HTML/CSS o Website and User Interface Design o Web Page design o UI/UX design ****Software/Application Expertise****: o Microsoft Word/PowerPoint/Excel o WordPress o Woo-commerce o E-commerce responsive store using HTML/CSS o Shopify o Custom PHP o Wix o SqaureSpace ****HTML****: o Responsive HTML 5 o Bootstrap o Responsive Newsletter -------------------------------------------- **** Graphic Design Expertise****: o Any type of graphics design o Logo Design o Business Card Design o Brochure Design o Menu Card design o Label Design o T-shirt Design o Icon Design o Stationery Design o Silhouette Making (line art) o Different Kinds Illustrations ****Software Expertise****: o Adobe Photoshop o Adobe Illustrator less -
Hire servermaster
About me I have worked over 20 years at IT and telecom companies in the following positions: IT support, System Administrator, Applications Administrator and Monitoring Administrator-Expert. I am "System Administration and IT Infrastructure Services" certified I follow KISS methods. I understand the OSI layer. With...About me I have worked over 20 years at IT and telecom companies in the following positions: IT support, System Administrator, Applications Administrator and Monitoring Administrator-Expert. I am "System Administration and IT Infrastructure Services" certified I follow KISS methods. I understand the OSI layer. With me, it is easy to set up systems. I am not picky about what systems to use, but I do have experience with what to use. I know the following operating systems + distros: Debian, Ubuntu, Gentoo, SUSE, Red Hat, CentOS, Rocky Linux, AlmaLinux, Arch Linux, FreeBSD, NetBSD, OpenBSD, Sun Solaris, plus MS Windows servers I also know the following systems: * Web servers: Apache, Nginx, Lighttpd, Litespeed, Hiawatha. * Java web servers: Tomcat, Jrun, JBoss * Javascript: Node.js, Npm * Proxy systems: Haproxy, Varnish, Squid. DB servers: MySQL (and forks, including MariaDB), PostgreSQL * Mail systems: Postfix, Exim, Dovecot, and implementing DKIM, SPF, MX, and DMARC * Monitoring systems: Nagios, Zabbix, Cacti, Grafana * SMS: SMSC, Kannel * DNS: Bind, Djbdns, Dnsmasq. * VPS: VMware, Hyper-V, Proxmox, bhyve, KVM, Xen, OpenStack... * Containers: Docker, Podman, LXC, Jail, Kubernetes * High Computing: OpenHPC, SLURM, MPI, and related * Cloud providers: AWS, DigitalOcean, Azure… I troubleshoot easily My knowledge does not stop here. Let's chat Please see my reviews of my previous works PS! As bonus, with my bid, you will get one week of free support for work done less -
Hire mahmoud1911
Media & IT systems engineer with 15+ years in video, localization, and infrastructure workflows. I build and manage media pipelines, render farms, and GPU hosting setups, including Linux-based compute nodes for video, AI, and rendering workloads. Experienced in: • Video/audio processing & transcoding • Subtitle &...Media & IT systems engineer with 15+ years in video, localization, and infrastructure workflows. I build and manage media pipelines, render farms, and GPU hosting setups, including Linux-based compute nodes for video, AI, and rendering workloads. Experienced in: • Video/audio processing & transcoding • Subtitle & localization workflows • Microsoft 365 / Google Workspace setup • Cloud, DNS, email, and IT systems • Linux servers, Docker, and GPU nodes • Render farm setup (Blender, AI, encoding, batch rendering) • Media automation and workflow optimization I help clients build reliable systems for production, rendering, and cloud-based operations — from small IT fixes to full compute infrastructure. less
