Network Security Consultants For Hire
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Hire rashidamjad
Rashid Tech Solutions is a systems-focused engineering and development practice with over 5 years of hands-on experience delivering reliable, production-ready solutions across software, cloud, automation, and embedded systems. We specialize in projects where multiple technologies must work together seamlessly —...Rashid Tech Solutions is a systems-focused engineering and development practice with over 5 years of hands-on experience delivering reliable, production-ready solutions across software, cloud, automation, and embedded systems. We specialize in projects where multiple technologies must work together seamlessly — software with hardware, cloud with automation, and logic with real-world operational constraints. Our work is driven by solid architecture, clean implementation, and solutions designed for long-term use, stability, and growth. 🔧 Core Capabilities Systems & Full-Stack Development End-to-end design and development of web platforms, backend services, APIs, dashboards, and mobile applications, built for scalability, security, and maintainability. Cloud, DevOps & Infrastructure Architecture and operations across AWS, Azure, and Google Cloud, including CI/CD pipelines, deployments, monitoring, performance optimization, and production hardening. Automation & Integrations Custom automation, workflow optimization, system integrations, bots, and backend processes to reduce manual work and improve operational reliability. Embedded Systems & Industrial Automation Development and integration of embedded systems, IoT devices, electronics, PCBs, PLCs, SCADA, and hardware–software interfaces for industrial and automation use cases. AI & Data-Driven Features Practical AI and machine-learning integrations such as computer vision, OCR, analytics, and intelligent system enhancements — applied where they deliver real, measurable value. Specialized & Custom Solutions Blockchain systems, trading tools, telephony platforms, and other domain-specific solutions when projects require deeper technical customization. 👥 Team & Delivery Model For larger or time-critical projects, I work with a small, trusted technical team, while personally managing and reviewing all work. This ensures clear communication, consistent quality, and a single point of accountability for the client. 🤝 Post-Delivery Support Delivery does not end at handover. We provide clear documentation, support, fixes, and ongoing assistance when required, ensuring systems remain stable, understandable, and easy to maintain over time. Our approach is reflected in consistent positive feedback from previous clients, who value technical ownership, clear communication, and dependable delivery. If you’re looking for a technical partner who thinks long-term and takes responsibility beyond launch, Rashid Tech Solutions is ready to support your project. 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 touhidecevw
touhidecevw touhidecevw
$60 USD / hour
Network & System Specialist|CCNP|Fortinet|RHCE|CEHBangladesh✅As a highly skilled and experienced network and system administrator with over 11 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete...✅As a highly skilled and experienced network and system administrator with over 11 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete solutions for designing, configuring, automating, and managing network and system projects. My proficiency in using simulation software such as Packet Tracer and GNS3, as well as real-life network and system devices, make me a valuable asset for any project. My few hands-on experiences is : ✅Network Design by MS Visio, Cisco packet tracer, GNS3, and EVE-NG ✅Netacad CCNA and CCNP packet tracer Labs activities, projects design and solution ✅Cisco routers, switches, FTD, FMC, and ASA firewalls. ✅WatchGuard, Palo Alto, CheckPoint Firewall, SonicWall, Fortigate, pfSense, OPNsense, Huawei firewalls. ✅Unifi Enterprise Fortress Gateway, Ubiquiti UDM Pro, Unifi Cloudkey, USG UniFi Firewall , Security Gateway, Switch, and AP devices ✅ Netgear, Huawei, Aruba switch, DrayTek router, TP-Link and others vendor wireless router configurations. ✅Cisco, Tp-Link, Aruba, Fortinet, Ubiquiti, Planet, Huwei switch configurations. ✅MikroTik Routers and switch configuration ✅ SNMP monitoring configuration: Observium, Librenms, Cacti, Nagios core ✅ Cloud Administrator: Azure, AMAZON AWS , Google GCP, OVH Cloud and Digital Ocean, Contabo ✅Hyper-V, VMware ESXi, VMware Workstation, VirtualBox, KVM, and Proxmox. ✅Ubuntu, Red Hat, CentOS, Debian, openSUSE, and Kali Linux distributions. ✅Windows server administration , Active Directory management, Exchange Server administration, DNS configuration ✅Servers: HP Proliant Servers, Dell/EMC Servers, IBM ✅VLSM/subnetting of small to large enterprises ✅VLANs, Inter-VLAN routing, VTP, CDP, Ether-Channel(LACP, PAGP) ✅DHCP, NAT/PAT configuration and IP helper address ✅static and Dynamic Routing protocols (RIP, OSPF, EIGRP, BGP) configuration ✅Layer-3 Redudent/backup links Using HSRP, VRRP ✅Port security, ACL( access list) configuration ✅Network troubleshooting and optimization ✅VPN Configuration Expert (GRE , SSL, IPSEC, PPTP, OpenVPN & DMVPN) ✅Network automation script for any Cisco and FortiGate devices using python ✅Overlay Networks VPN Expertise: Proficient in configuring and managing various overlay network VPNs, including ZeroTier, Tailscale, WireGuard, SoftEther VPN, Netbird , Netmaker, OpenVPN Cloud, I, Twingate and PeerVPN for secure, scalable, and decentralized networking, enabling seamless remote access, team collaboration, and encrypted communications across distributed systems. ✅Cisco Duo: MFA, 2FA, SSO, Identity Security Integration, Windows Logon, RDP, Microsoft AD, VPN Authentication. less -
Hire HaroonKareem
I am a Senior IT & Cloud Infrastructure Consultant with 16+ years of hands-on experience helping businesses design, secure, optimize, and troubleshoot their IT environments. I hold a Master’s degree in Networks & Security (Scholarship-based) and multiple industry certifications. I specialize in Microsoft Azure,...I am a Senior IT & Cloud Infrastructure Consultant with 16+ years of hands-on experience helping businesses design, secure, optimize, and troubleshoot their IT environments. I hold a Master’s degree in Networks & Security (Scholarship-based) and multiple industry certifications. I specialize in Microsoft Azure, Windows Servers, Networking, Firewalls, Security, VDI, Monitoring, and Backup & Disaster Recovery. I work with both on-premise and cloud environments, providing fast, reliable, and cost-effective solutions with clear communication. What I help clients with: Cloud Services: Microsoft Azure, AWS, Google Cloud – setup, migration, performance tuning & cost optimization Servers & Virtualization: Windows Server, Active Directory, GPO, DNS, DHCP, Hyper-V, VMware ESXi, clustering & high availability Networking & Wireless: Network design, troubleshooting, VLANs, routing, VPNs, MPLS, SD-WAN (Cisco, Aruba, Fortinet, Mikrotik, UniFi) Security & Firewalls: Fortinet, Palo Alto, Sophos, Cisco ASA, pfSense, email security (SPF, DKIM, DMARC), endpoint protection VDI & Remote Access: Azure Virtual Desktop, Citrix VDI, VMware Horizon Monitoring & Cybersecurity: SolarWinds, PRTG, Zabbix, vulnerability scanning & security reporting Backup & DR: Veeam, Acronis, NetBackup – backup design, testing & recovery PBX & Collaboration: 3CX, FreePBX Documentation & Consulting: Technical documentation, policies, diagrams, audits, and reports I am experienced in remote IT support, urgent troubleshooting, migrations, and long-term IT management. My focus is always on security, performance, uptime, and business continuity. ✔ Clear communication ✔ Fast response time ✔ Enterprise-level experience ✔ Short-term fixes or long-term support I am available for one-time tasks, ongoing support, consulting, and complex infrastructure projects. less -
Hire G8Bharat
Description: 👨💻 IT Professional with 15+ Years of Expertise in Systems Administration, Cloud, and Security I am a seasoned Windows & Linux Administrator with extensive experience in managing servers, cloud platforms, and secure IT infrastructures. Over the past 14 years, I’ve successfully delivered projects...Description: 👨💻 IT Professional with 15+ Years of Expertise in Systems Administration, Cloud, and Security I am a seasoned Windows & Linux Administrator with extensive experience in managing servers, cloud platforms, and secure IT infrastructures. Over the past 14 years, I’ve successfully delivered projects involving virtualization, security hardening, and enterprise-grade system deployments. My focus is on creating secure, optimized, and scalable environments tailored to business needs. 🌐 Systems Administration 🛠️ Skilled in Windows Server (2022/2019/2016) and Linux administration. 📂 Experienced in Active Directory, NPS, NAS, DFS file sharing, and printer management. 🔧 Strong background in Dell server hardware, storage setup, and maintenance. 🔒 Security & Authentication 🛡️ Security assessments with Nessus and Qualys. 🔑 Implementation of certificate-based authentication and Radius servers. 🔒 Designed RDP with MFA solutions to secure remote access. 🚨 Hands-on experience with DNS/DNSSEC and Cloudflare for domain security. ☁️ Cloud & Virtualization 🌩️ Proficient in AWS, Azure, Google Cloud, and Office 365 administration. 💻 Expertise in Proxmox, VirtualBox, and Hyper-V clusters. 📦 Designed and deployed multi-VM Hyper-V clusters on Hetzner and OVH cloud, including 📡 Monitoring & Optimization 📊 Proficient in IPMonitor, PRTG, and Nagios Core for proactive system monitoring. 🖥️ Implemented alerting and dashboards to maximize uptime and performance. 🤝 Collaboration & Service Desk 📋 Experienced with Jira Service Desk for IT support management. 💬 Microsoft Teams administration for seamless organizational collaboration. 🔧 Troubleshooting Expertise 🛠️ Known for resolving complex IT issues quickly and effectively. 🔍 Strong skills in diagnosing root causes of outages and performance issues. 🌟 Recent Project Highlight: Hyper-V on Hetzner & OVH Cloud I recently completed a deployment of a Hyper-V cluster hosted across Hetzner and OVH cloud platforms. The project involved: 🔐 pfSense firewall for network segmentation. 🏢 Windows Domain Controller setup with Active Directory. 🌍 Hosting web servers for client-facing apps. 📂 DFS file sharing with replication. 💾 Veeam backup and disaster recovery plan. 🔑 RDP with MFA to secure remote access. This end-to-end solution delivered security, redundancy, and scalability, ensuring high availability for business-critical services. 💡 Why Work With Me? I deliver IT solutions that are: 🔒 Secure – with MFA, firewalls, and proactive vulnerability management. 🚀 Scalable – built on modern cloud and virtualization technologies. 📈 Reliable – with backups, monitoring, and performance tuning in place. Whether you need system administration, virtualization, cloud setup, or IT security hardening, I provide enterprise-grade solutions with a proven track record of success. 🚀 Let’s build a secure and resilient IT environment for your business. less -
Hire silvernsaka
silvernsaka silvernsaka
$30 USD / hour
💡 Top 3% | Full Stack | GenAI | LLM | Agentic AIUnited States💡 Senior Software Engineer with 20+ years of experience leading the design, development, and deployment of large-scale Full Stack and cloud-native solutions across software, cloud, and advertising industries. Expert in Generative AI, LLMs, and agentic AI, with hands-on experience building production-ready APIs for...💡 Senior Software Engineer with 20+ years of experience leading the design, development, and deployment of large-scale Full Stack and cloud-native solutions across software, cloud, and advertising industries. Expert in Generative AI, LLMs, and agentic AI, with hands-on experience building production-ready APIs for content generation, keyword optimization, and campaign management using Google Gemini, Claude Sonnet, Claude Opus, and Vertex AI. Proven track record in architecting microservices, RAG and ETL pipelines, and scalable cloud infrastructure on GCP, AWS, IBM Cloud, and Azure, leveraging Python, Go, Java, FastAPI, Spring Boot, and React/Angular/Flutter frameworks. Skilled in optimizing system reliability, performance, and cost while implementing secure RBAC, database indexing, and CI/CD automation. Adept at translating complex AI workflows into business-impacting solutions, driving innovation, and delivering high-performance software that scales globally. ✅ Programming Languages: Python, Go, Java, JavaScript, TypeScript, SQL, Bash, Shell ✅ Frontend Frameworks: React, Next.js, Angular, Flutter, React Native, HTML5, CSS3 ✅ Backend Frameworks: FastAPI, Spring Boot, Node.js, Express.js ✅ AI/ML & GenAI: Google Gemini, Claude Sonnet, Claude Opus, Vertex AI, TensorFlow, Dialogflow, LangChain ✅ Architecture & Patterns: Microservices, Distributed Systems, Serverless, RAG, ETL Pipelines, MCP Server, Agentic AI, RESTful APIs, GraphQL ✅ Cloud Platforms: Google Cloud Platform (GCP), Google Kubernetes Engine (GKE), AWS, Azure, IBM Cloud ✅ Containerization & Orchestration: Docker, Kubernetes, Helm, Terraform, Ansible ✅ Databases: PostgreSQL, MongoDB, Google BigQuery, Cloud Firestore, IBM Db2, Redis ✅ DevOps & CI/CD: GitHub Actions, Jenkins, CircleCI, Git, GitLab CI/CD ✅ Monitoring & Logging: Prometheus, Grafana, ELK Stack, Cloud Logging ✅ Testing & Quality: PyTest, JUnit, Selenium, Cypress, Postman, Load Testing ✅ Security & Access Control: RBAC, OAuth2, JWT, Database RLS Policies, Data Encryption, Network Security ✅ Performance Optimization: Indexing Strategies, Query Optimization, Cache Management, Scalability Planning ✅ Project & Collaboration: Agile, Scrum, Jira, Confluence Looking forward to long-term collaboration! ❤️ less -
Hire ramygoda1590
Hi there, I am networking expert specialist and consultant for more than 8 years, who spend my free time to learn about new technologies in networking, security field to be always up to date. please just ping me on chat to have a short discussion on your project and i will always look for solving your tasks...Hi there, I am networking expert specialist and consultant for more than 8 years, who spend my free time to learn about new technologies in networking, security field to be always up to date. please just ping me on chat to have a short discussion on your project and i will always look for solving your tasks quickly. below is a brief on my experience: Technology Specialist: --------------------- - Can design, implment large scale networking and make exaplanation reports. - Practice on Cisco Packet Tracer, GNS-3, EVE-NG. - Excellent pracitce on VMware WorkStation, Virtual-Box - VPN (IPSEC,IKE v1 or v2 ,L2TP ,OPENVPN, DUO Authentication). - Routing Protocols (BGP, OSPF, EIGRP .. ). - Wrie Technical Reports with excellent and format. Skills and Hands on Experience: ------------------------------- - Cisco devices (routers, switches), routing protocols, IPSEC, Cisco ASA Firewall. - Fortinet Devices: FortiGate, Forti Manager, Forti Analyzer. - wireless (WLC, Access Points): CISCO, Aruba, ubiquiti. - Juniper (M7, M10, MX 480, MX 960) and SRX (300, 500). - Operating Systems: Linux servers (Ubuntu, RedHAT, Debian), windows (Windows server 2012, 2016 ..etc). Regards, Ramy less -
Hire qprotex
I offer comprehensive Software Architecture Services designed to build robust, scalable, and efficient software systems tailored to meet the unique needs of your business. My expertise lies in creating clear, actionable architecture blueprints that serve as a foundation for developing high-performing software...I offer comprehensive Software Architecture Services designed to build robust, scalable, and efficient software systems tailored to meet the unique needs of your business. My expertise lies in creating clear, actionable architecture blueprints that serve as a foundation for developing high-performing software solutions. With a focus on modern architectural patterns, microservices, and cloud-native technologies, I ensure that your software architecture is flexible, resilient, and ready for future growth. I work closely with each client to understand their specific challenges and objectives, providing personalized guidance on technology selection, system design, and best practices for implementation. My goal is to empower your development teams with a solid architectural framework that accelerates development, facilitates maintenance, and reduces overall project risk. Partner with me to transform your vision into a software reality that drives business success and technological innovation. My certifications: - Microsoft – Azure Administrator - Microsoft – Azure Fundamentals - Microsoft – Azure AI Fundamentals - Microsoft – Azure Data Fundamentals - CompTIA CASP+ - CompTIA Security+ - EC Council – CEH Certified Ethical Hacker -eLearnSecurity – eCRE Certified Reverse Engineer - IITAC – Certified Reverse Code Engineering Professional - IACRB – Certified Reverse Engineering Analyst -SmartBear – SOAPUI NG Pro less -
Hire kaindo2017
Hello welcome to my profile, I am a guru in research writing, technical writing, business analysis, web scraping, and SEO content writing. I have been doing this for more than you can imagine. I am a BSc degree holder in computer science and a diploma in project management and CCNA certification. I also hold a...Hello welcome to my profile, I am a guru in research writing, technical writing, business analysis, web scraping, and SEO content writing. I have been doing this for more than you can imagine. I am a BSc degree holder in computer science and a diploma in project management and CCNA certification. I also hold a Bachelor's degree in commerce. I have more than 5 years of experience in providing research writing, technical writing, WordPress, SEO article writing, and content writing. Below are some of the services that I offer, Article and Book Reviews Finance, Accounting, Statistic and Economics Writing. Case study analysis Proposal writing software requirements specification (SRS) and system design specification (SDS) Project management (WBS, scheduling, Gantt charts, charter, scope, project cost estimation) Computer network && Cyber security Database management && design(ERD design, Normalization, database schema ) Computer programming(Python, Java and Php ) Software Engineering (UML diagrams: Use Case, Class diagram, flowcharts, Sequence diagram) Digital forensic Etc. I believe in creating excellent services to my clients by understanding the instructions, thus providing well-versed results. As a researcher, I remain committed to delivering quality work, free from plagiarism, with proper grammar and intensive research. My key purpose in the freelance industry is to relentlessly and passionately deliver high-quality work. My core values are always Commitment, reliability, time- conscious honesty I am always open to invitations from clients who have confidence in my skill set and share the same interest in perfection and good working relations. Please click "Hire me" in my profile "https://www.freelancer.com/u/kaindo2017" and I will never disappoint you, thank you. less -
Hire yuriihal
Hello! I’m a No-Code & Automation Engineer with a strong background in backend development, cloud infrastructure, and system design. I specialize in building scalable automation systems that eliminate manual work, improve efficiency, and help businesses operate faster and smarter. I combine no-code tools with...Hello! I’m a No-Code & Automation Engineer with a strong background in backend development, cloud infrastructure, and system design. I specialize in building scalable automation systems that eliminate manual work, improve efficiency, and help businesses operate faster and smarter. I combine no-code tools with engineering-level thinking to design reliable, production-ready workflows and integrations tailored to real business needs. 🔧 Services I Offer |- End-to-End Workflow Automation (Zapier / Make / n8n) ||- Multi-step automations with logic, conditions, and error handling |||- Webhook-based systems & event-driven workflows |- API Integrations & System Connections ||- REST APIs, JSON handling, OAuth / API key authentication |||- Custom integrations between SaaS platforms |- Internal Tools & Data Systems ||- Airtable / Notion / Google Sheets as databases |||- Data pipelines, syncing, and transformation |- Business Process Automation ||- CRM automation (HubSpot, Salesforce) |||- Email workflows (Resend, Mailchimp) |||- Payment automation (Stripe) |- Cloud & Backend Support ||- AWS (Lambda, S3, API Gateway, SQS) |||- Serverless workflows & scalable backend logic |- AI & GenAI Integrations ||- OpenAI / LangChain / Hugging Face |||- AI-powered workflows, content processing, automation 🧠 My Approach I focus on building systems that are: • Scalable → ready to grow with your business • Reliable → proper error handling & monitoring • Maintainable → clean structure and documentation • Efficient → reducing manual work and costs I don’t just connect tools — I design complete systems that work seamlessly in real-world conditions. 💡 Why Work With Me • Strong engineering background (not just no-code user) • Experience with cloud, APIs, and scalable architectures • Focus on real business impact, not just automation setup • Clear communication and fast execution 🤝 Let’s Work Together If you’re looking to automate your processes, integrate your tools, or build a scalable no-code system — I can help. less
