Hire the Best Firewall Developers

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Rating is 4.8 out of 5.
4.8/5
Based on 1,140 client reviews
Uday G.

Rajkot, India

$100/hr
5.0
19 jobs

AWS Cloud Security Architect & DevSecOps Engineer specializing in Kubernetes, AWS, GCP, and Azure. I help SaaS and fintech companies secure cloud infrastructure, reduce costs, and pass security audits without slowing down development. I’ve secured 1500+ nodes, reduced cloud costs by up to 40%, and helped teams pass critical security audits. With 10+ years of hands-on experience across cloud, security, networking, and DevSecOps, I operate as a senior-level architect and stay hands-on through implementation when needed. Clients bring me in when the stakes are high and mistakes are expensive. I typically identify critical issues and improvements within the first few days of engagement. ✅ How I Help Teams Win Clients bring me in when they need to: • Reduce cloud spend by 20–40% without performance trade-offs • Pass security reviews and audits faster • Design secure-by-default architectures that scale with growth • Untangle complex or over-engineered cloud environments • Enable faster releases while strengthening security posture 🔐 Cloud Security Architecture (Built for Real-World Use) I design production-grade cloud security architectures that protect critical workloads without blocking developers, including: • Zero-trust and defense-in-depth security models • IAM strategy, least-privilege access, and network segmentation • WAF and edge security tuned for real traffic and threats • Security reviews aligned with best practices and compliance needs ☁️ Cloud Architecture, Migrations & FinOps I’ve led multiple successful migrations and re-architectures across AWS, GCP, and Azure for growth-stage and enterprise teams. • Secure, scalable multi-account / landing-zone design • Cloud migrations with zero downtime • Infrastructure as Code using Terraform • Cloud cost optimization and FinOps best practices 🚀 DevSecOps & CI/CD Enablement I embed security into CI/CD pipelines so teams can ship faster without increasing risk. • Secure CI/CD pipelines (GitLab-based workflows) • Kubernetes security hardening and workload protection • Automated security checks and policy enforcement • Reduced operational friction between security and engineering 🌐 CDN, WAF & Edge Security Optimization I help teams improve performance while protecting applications at scale. • CDN caching strategies to reduce latency and load times • WAF configuration and tuning • Protection against OWASP threats, bots, and DDoS attacks 🏆 Proven Results • Reduced cloud infrastructure costs by ~30% within 60 days • Designed secure, multi-region architectures for high-traffic platforms • Enabled smoother audits and faster security approvals • Delivered migrations with improved performance and reliability 🤝 How I Typically Work Most engagements start with a focused cloud security or architecture audit, followed by a clear action plan. I’m a strong fit if you are: • A SaaS or cloud-native company preparing to scale • A fintech or security-sensitive platform • A team facing audits, security reviews, or cloud cost pressure 📩 Next Step Send me a message with your current setup or challenge — I’ll outline the fastest way to improve it.

  • Network Security
  • Kubernetes
  • Security Infrastructure
  • Security Engineering
  • Google Cloud Platform
  • Cloud Computing
  • Web Application Firewall
  • DevOps
  • Microsoft Azure
  • Terraform
  • Infrastructure as Code
  • Amazon Web Services
  • Cloud Security
  • Cloud Security Framework
  • Cloud Engineering
Muhaammad A.

Bahawalpur, Pakistan

$20/hr
5.0
6 jobs

𝙎𝒕𝙤𝒑 𝒑𝙖𝒚𝙞𝒏𝙜 𝙛𝒐𝙧 𝙬𝒆𝙚𝒌𝙨 𝙤𝒇 𝒔𝙡𝒐𝙬 𝙘𝒐𝙙𝒊𝙣𝒈. 𝙄 𝙗𝒖𝙞𝒍𝙙 𝙥𝒓𝙤𝒅𝙪𝒄𝙩𝒊𝙤𝒏-𝒓𝙚𝒂𝙙𝒚 𝒔𝙤𝒇𝙩𝒘𝙖𝒓𝙚 𝙞𝒏 𝒅𝙖𝒚𝙨. I am an 𝐀𝐈-𝐚𝐮𝐠𝐦𝐞𝐧𝐭𝐞𝐝 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫 who lives in the future of development. By treating tools like Cursor, Claude and GitHub Copilot as my primary pair-programmers, I move from a blank page to a deployed application 𝟑 𝐭𝐨 𝟓 times faster than traditional developers. While the AI handles the boilerplate, I focus my energy on senior-level architecture, 𝐬𝐞𝐜𝐮𝐫𝐢𝐭𝐲, and the 𝐮𝐬𝐞𝐫 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞. While AI writes the boilerplate, I provide the 𝐬𝐞𝐧𝐢𝐨𝐫-𝐥𝐞𝐯𝐞𝐥 architectural thinking, ensuring your app is secure, scalable, and built on best practices. I lead a small, highly specialized development duo, allowing us to manage complex projects from UI design to backend deployment seamlessly. 𝐖𝐡𝐚𝐭 𝐈 𝐛𝐫𝐢𝐧𝐠 𝐭𝐨 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭: 𝟏. 𝐑𝐚𝐩𝐢𝐝 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 I build modern, scalable web applications using React, Next.js, and TypeScript. Whether you need an MVP this week or want to move a Bolt. New prototype into a secure production environment on Vercel, I can execute it fast. 𝟐. 𝐂𝐮𝐬𝐭𝐨𝐦 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 I specialize in building autonomous agents and custom 𝐋𝐋𝐌 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬. I use the latest reasoning models and the 𝐌𝐨𝐝𝐞𝐥 𝐂𝐨𝐧𝐭𝐞𝐱𝐭 𝐏𝐫𝐨𝐭𝐨𝐜𝐨𝐥 (MCP) to connect your data silos into one intelligent system. 𝟑. 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 I don't just build for the web. I have a proven track record of shipping professional-grade desktop applications with Electron.js and mobile apps with React Native. 𝟒. 𝐀𝐝𝐯𝐚𝐧𝐜𝐞𝐝 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐚𝐧𝐝 𝐀𝐮𝐭𝐡𝐞𝐧𝐭𝐢𝐜𝐚𝐭𝐢𝐨𝐧 My work goes beyond just "making it work." I have deep experience in securing applications, implementing complex SSO flows like SAML and OIDC, and ensuring data privacy is at the core of the architecture. 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬: • 𝐁𝟐𝐁 𝐖𝐞𝐛𝐬𝐢𝐭𝐞 A scalable B2B platform designed to streamline business connections and growth opportunities. • 𝐀𝐈 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭𝐚𝐫𝐲 Immersive React app explaining AI reality beyond the hype. • 𝐕𝐒 𝐂𝐨𝐝𝐞 𝐄𝐱𝐭𝐞𝐧𝐬𝐢𝐨𝐧 Published productivity tool on the official VS Code Marketplace. • 𝐍𝐏𝐌 𝐋𝐢𝐛𝐫𝐚𝐫𝐢𝐞𝐬 Two published libraries for privacy-first analytics and AI utilities. • 𝐀𝐈 𝐖𝐨𝐫𝐤𝐬𝐩𝐚𝐜𝐞 𝐌𝐢𝐧𝐝 Full-stack Autonomous workspace mind for google prodcuts like Gmail, Docs, Sheet and Drive • 𝐌𝐨𝐧𝐭𝐡𝐥𝐲 𝐅𝐮𝐧𝐝𝐬 Offline-first personal finance mobile app with secure Firebase sync. and many more! 𝐂𝐑𝐄𝐃𝐄𝐍𝐓𝐈𝐀𝐋𝐒: • 𝐌𝐢𝐜𝐫𝐨𝐬𝐨𝐟𝐭: Generative AI for Software Developers (Specialization) • 𝐈𝐁𝐌: AI Developer Professional Certificate • 𝐆𝐨𝐨𝐠𝐥𝐞: AI Prompting Essentials 𝐖𝐇𝐘 𝐇𝐈𝐑𝐄 𝐌𝐘 𝐖𝐎𝐑𝐊𝐅𝐋𝐎𝐖? By utilizing Cursor and Claude as my primary pair-programmers, I eliminate the slow, tedious parts of software development. You are not paying for hours of staring at a blank screen; you are paying for immediate execution, deep technical problem-solving, and a product that ships fast. 𝐒𝐞𝐧𝐝 𝐦𝐞 a message about your project. I will tell you exactly how fast we can build it together.

  • Generative AI
  • Prompt Engineering
  • Solution Architecture
  • Data Privacy
  • Python
  • TypeScript
  • Node.js
  • React
  • API Integration
  • Automation
  • Natural Language Processing
  • Script
  • Claude
  • GitHub Copilot
  • OpenAI Codex
  • Supabase
  • Next.js
  • Machine Learning
Yun P.

Littleton, Colorado

$55/hr
4.6
5 jobs

I am a CCIE-certified Network Engineer with over 14 years of experience designing, upgrading, and supporting on premise and hybrid enterprise network infrastructure across healthcare, financial services, professional services, public sector, and managed services environments. My background is rooted in deep hands-on expertise across routing and switching, data center networking, WAN architecture, and advanced troubleshooting in complex, multi-vendor environments. I have worked extensively with platforms including Cisco, Palo Alto, Infoblox, Arista, and Juniper. Throughout my career, I have led large-scale remote and hybrid deployments, stabilized critical network environments, and improved uptime, performance, and scalability across both data centers and distributed enterprise systems. I bring a strong ability to partner cross-functionally with infrastructure, security, and operations teams to deliver resilient, high-performing network solutions. CORE COMPETENCIES: ★ Data Center Architecture ★ Routing & Switching ★ SD-WAN ★ Network Security ★ WAN Architecture ★ Infrastructure Modernization ★ Advanced Troubleshooting ★ Cisco Nexus & Catalyst ★ Palo Alto / Fortinet Firewalls ★ Infoblox ★ BGP / OSPF / EIGRP ★ MPLS / DIA ★ Network Automation (Ansible) ★ High Availability & Resiliency ★ Leaf & Spine / Core & Distribution & Access TOOLS: Cisco IOS | Cisco NX-OS | Cisco Nexus (9000/7000/5000/2000) | Cisco Catalyst | Cisco ACI | Arista EOS | Juniper MX/EX | ArubaOS | Nokia OS | Cisco Meraki | BGP | OSPF | EIGRP | vPC | STP | VDC | VXLAN | EVPN | NAT | QoS | Multicast | VRF | DMVPN | IPsec | HSRP | VRRP | GLBP | LACP | LLDP | CDP | Cisco Catalyst SD-WAN | Viptela SD-WAN | SilverPeak SD-WAN | MPLS | DIA | Metro Ethernet | Palo Alto | Fortinet | Cisco ASA | Cisco ISE | Cisco DNA | Wireshark | Ansible | TCL Shell | Python | SecureCRT | PuTTY | ServiceNow | Microsoft Teams | Zoom | Webex | Outlook | Visio CERTIFICATIONS: CCIE Routing & Switching #51201 | CCNP | CCDA | MCSE

  • Network Design
  • Network Architecture
  • Network Engineering
  • Network Planning
  • Network Security
  • Network Monitoring
  • Network Equipment
  • Network Traffic Analysis
  • Wide Area Network
  • Local Area Network
  • Wireless Network Implementation
  • Cisco Certified Internetwork Expert
  • Cisco ACI
  • Cisco Meraki
  • Cisco WLC
  • Cisco ISE
  • Network Administration
  • Palo Alto Firewalls
  • Cisco Certified Network Professional
  • Cisco Router
Ken O.

Quezon City, Philippines

$35/hr
5.0
4 jobs

I’m a network engineer with over 9 years of experience in managing, optimizing, and securing complex network infrastructures in global environments. Professional Background: I offer end-to-end network solutions—from setup to optimization—designed to give your business uninterrupted performance, top-tier security, and long-term stability. Specializations: 1. Cisco Technologies (Routers, Switches, Firewalls - ASA, ISE, SD-WAN, VPN - AnyConnect) 2. Juniper (Routers and Switches) 3. Arista (Routers and Switches) 4. Meraki (Switches and Access Points) 5. Palo Alto Firewalls 6. Fortigate Firewalls 7. Linux Servers 8. VMWare vCenter Certifications: 1. CCNP Enterprise 2. CCNA Security and Data Center 3. AWS Cloud Practitioner If you’re looking for a reliable professional to manage your network, resolve technical challenges, and strengthen your infrastructure's security and efficiency, let’s connect.

  • Network Administration
  • Network Engineering
  • Network Traffic Analysis
  • Network Monitoring
  • Palo Alto Firewalls
  • FortiGate Firewall
  • Cisco ASA
  • Cisco ISE
  • Cisco Certified Network Professional
  • Cisco Meraki
  • Juniper
  • Closed-Circuit Television
Ahmed Z.

Stockholm, Sweden

$70/hr
5.0
56 jobs

✅ Top-Rated Freelancer (Top 1 %) ✅ 100% - Job Success Score ✅ Availability & Working Hours: (40+ hrs/week) ✅ Certified Cloud & Network Architect ✅ 12+ years experience in Enterprise Networking, Cybersecurity & Cloud Solutions ✅ AWS, Azure, GCP Architecture & Migration Specialist ✅ Infrastructure as Code: Terraform, Ansible Expert ✅ Cisco CCNA, CCNP Routing & Switching, CCNA Security Certified ✅ Certified Associate in Project Management (CAPM) ✅ Palo Alto Firewall & Security Architecture ✅ Network Security & Cybersecurity Expert, Zero Trust, VPNs, Firewalls ✅ Network Design: LAN, WAN, MPLS, VPN, Hybrid Cloud Networking ✅ Zero Trust Network Access (ZTNA) & Security Hardening ✅ Linux Administration: Red Hat & Ubuntu ✅ High Availability & Disaster Recovery Planning ✅ Cloud Automation & Monitoring ✅ Hybrid On-Prem + Cloud Integration ✅ Artificial intelligence & Machine Learning (AI\ML) ✅ Model Context Protocol (MCP) ✅ Retrieval-Augmented Generation (RAG) LLM I’m Ahmed Zain Ul Haq, a passionate architect focused on building secure, scalable, and resilient cloud and network infrastructures. I help businesses design, deploy, and secure environments using cutting-edge cloud platforms and multi-vendor networking technologies. I’m actively looking for projects involving cloud migrations, hybrid networking, cybersecurity, infrastructure automation, and enterprise security solutions. I hold multiple certifications, including: 🌐 Cloud & Architecture Certifications 📌AWS Certified Solutions Architect – Associate (SA-003) 📌 Google Cloud Certified – Professional Cloud Architect (GCP-PCA) 📌 Microsoft Certified: Azure Solutions Architect Expert (AZ-305) 📌 Microsoft Certified: Azure Network Engineer Associate (AZ-700) 🖧 Cisco Networking Certifications 📌 Cisco Certified Network Associate (CCNA) Routing & Switching (200-301) 📌 Cisco Certified Network Professional (CCNP) Enterprise Design (350-401 ENCOR) 📌 Cisco Certified Network Associate Routing and Switching (CCNA R&S) 🔐 Security Certifications 📌 Palo Alto Networks Certified Network Security Administrator (PCNSA) 🛠️ Infrastructure & Tools 📌 HashiCorp Certified: Terraform Associate (003) 🛠️ Tools Set 🔹Kubernetes 🔹Docker 🔹Terraform 🔹Ansible 🔹Prometheus 🔹Grafana 🔹jenkins 🔹Gitlab CI/CD 🔹Azure DevOps 🔹Github Actions 🔹Helm 🔹Chef 🔹AWS CloudFormation 🔹Pulumi 🔹AWS CDK 🔹OpenShift 🔹Docker Compose 🔹Microsoft Azure 🔹Google Cloud Platform 🔹Azure DevOps 🔹Azure Kubernetes Service 🔹Azure App Service 🔹Azure File Storage 🔹Azure Log Analytics 🔹Google Cloud Platform 🔹Google Kubernetes Engine 🔹Google Cloud Load Balancing 🔹Google Cloud Storage 🔹Wordpress 🔹Amazon Lightsail 🔹N8N Specialist So, whether you’re looking for expertise in AWS architecture, DevOps practices, cloud technologies, or infrastructure automation, I’m here to help. Let’s connect and discuss how I can help you optimize your cloud environment and achieve your business goals!

  • Cloud Architecture
  • Amazon Web Services
  • Microsoft Azure
  • Google Cloud Platform
  • Cloud Migration
  • Network Security
  • Cloud Development
  • Computing & Networking
  • DevOps
  • Cloud Database
  • Cloud Services
  • Cloud Security
  • Palo Alto Firewalls
  • Managed Services
  • Infrastructure as Code
Antoine D.

Zgharta, Lebanon

$50/hr
4.9
133 jobs

Experienced Network Operations Center Team Lead with a demonstrated history of working in the information technology and services industry. - expert in building vpn platforms - expert in Networking, Cisco Systems Products( R&S, Security and Collaboration). - expert in Palo alto , Fortinet, PFSense firewalls, Mikrotik router, VPN - very good experience in Vmware ESXi, Ubiquity, Unify , windows Servers - very good exprience in cloud (AWS, GCP, Azure, Oracle OCI) - very good experience in linux -very good experience in docker, kubernetes -very good experience in git, ci/cd - Strong Development Skills specially network development(C#, .net web API , asp.net mvc) - .net core web api, microservices, rabbitmq, Rest API, EF

  • Ubiquiti
  • Network Design
  • VPN
  • Network Security
  • .NET Framework
  • Cisco ASA
  • MikroTik RouterOS
  • C#
  • Cisco CallManager
  • .NET Core
  • Cisco Certified Network Professional
  • Cisco Router
  • PfSense
  • Virtual Private Server

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