Firewall Experts For Hire
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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 Hubready
I don’t just write code — I build systems that work in the real world. I’m a senior Full-Stack & AI Engineer with extensive experience designing, building, and scaling production-grade software across AI automation, SaaS platforms, data pipelines, and high-volume e-commerce systems. I approach every project with both...I don’t just write code — I build systems that work in the real world. I’m a senior Full-Stack & AI Engineer with extensive experience designing, building, and scaling production-grade software across AI automation, SaaS platforms, data pipelines, and high-volume e-commerce systems. I approach every project with both an engineering and business mindset, ensuring solutions are not only technically sound but also practical, maintainable, and ROI-driven. ✓ What I do best – AI & Automation • LLM integrations (OpenAI, RAG pipelines, embeddings, copilots) • Intelligent workflow automation and data processing • AI-powered internal tools and dashboards – Backend & Data Engineering • Custom APIs and event-driven architectures • PostgreSQL at scale (partitioning, optimization, analytics) • ETL pipelines across Shopify, Salesforce, ERP, and custom systems • Node.js, Python, TypeScript – Frontend Development & UX • Modern, responsive frontends built for real users • React, Next.js, and component-driven UI architecture • Data-heavy dashboards with performance in mind • Clean UI/UX that balances usability, speed, and clarity • Frontends tightly integrated with backend and analytics layers – Mobile App Development • Cross-platform mobile apps (iOS & Android) • React Native, Flutter, and modern mobile stacks • Secure API integration and real-time data sync • Apps designed for performance, stability, and growth – Cloud, DevOps & Reliability • Docker / Podman, CI/CD pipelines, secure deployments • Observability, logging, and performance tuning • Systems designed to scale without constant maintenance ✓ How I work • Clear communication and structured milestones • Production-ready code — no shortcuts or fragile builds • Proactive technical guidance when I see risks or better paths • Long-term thinking: solutions that grow with your business Clients bring me in when systems become too complex, too slow, or unreliable, or when an AI idea needs to become a real, production-ready product — not just a prototype. If you need a senior engineer who can own frontend, backend, data, and AI end-to-end, and deliver clean, scalable results — let’s build it right. less -
Hire MaTGaPa
I started with BeOS in 2002, because of a friend, who showed me something other than Windows, Always I worked repair PC & Laptops. Now I have more 10 years of experience in Server Linux. I can manager servers dedicated, servesr VPS, servers shared, etc. Setup and management you server; Apache/Nginx/Tomcat. SMTP...I started with BeOS in 2002, because of a friend, who showed me something other than Windows, Always I worked repair PC & Laptops. Now I have more 10 years of experience in Server Linux. I can manager servers dedicated, servesr VPS, servers shared, etc. Setup and management you server; Apache/Nginx/Tomcat. SMTP Postfix, POP/IMAP Dovecot. FTP Vsftpd, Proftpd, Pure-ftpd-mysql. Dns Bind9, dnsmasq. File Server & printer Samba (dc-ac). Network administrator: isc-server-dhcp, openvpn, etc. Install and renew SSL certicate. All services on cloud; AWS, Azure, etc. Also website and E-mail migrations. ALL panels and web managers. Management all Linux distributions. Setup, security and optimization your server. __________________________ VERY IMPORTANT!!! “Hi I'm Matias, someone is trying to impersonate me, this account is the only one active and verified by freelancer! I DON'T USE ANY OTHER MEANS OF CONTACT, ONLY FREELANCER CHAT!” ----------------------------------------- less -
Hire Lazarone1
I’m an AI Agent Engineer, Automation Specialist, and Full-Stack Developer with a deep passion for embedding intelligence into real-world web and mobile products and eliminating manual business workflows through automation. My core focus is designing, building, and deploying AI-driven systems—from LLM-powered agents...I’m an AI Agent Engineer, Automation Specialist, and Full-Stack Developer with a deep passion for embedding intelligence into real-world web and mobile products and eliminating manual business workflows through automation. My core focus is designing, building, and deploying AI-driven systems—from LLM-powered agents and voice assistants to data-aware automation pipelines that integrate seamlessly with production applications. I work extensively with large language models (LLMs), retrieval-augmented generation (RAG), vector databases, embeddings, tool-calling frameworks, and agent orchestration patterns to create systems that reason, act, and scale reliably. On the backend, I build high-performance APIs and services using FastAPI, Flask, Node.js, and Django, with strong experience in async architectures, background workers, and event-driven systems. I regularly work with PostgreSQL, MySQL, Redis, MongoDB, and Neo4j, and design robust data layers using SQLAlchemy, Prisma, and ORM/DAO patterns. For AI workloads, I integrate OpenAI, Anthropic, Ollama, ElevenLabs, and custom inference pipelines, alongside Qdrant, Pinecone, FAISS, and hybrid search setups. On the frontend, I build modern, scalable interfaces using React, Next.js, Vite, Tailwind CSS, and TypeScript, with a strong emphasis on UX for AI-powered tools (real-time streaming, agent state visualization, conversation flows, and admin dashboards). For mobile, I work with React Native and cross-platform architectures to bring AI features directly into user-facing apps. Automation is a major part of my work. I design end-to-end business automation systems using Make.com, n8n, webhooks, cron jobs, message queues, and direct API integrations. This includes automating CRM workflows, email systems, call routing, lead qualification, reporting, and data synchronization across platforms like Twilio, Slack, Google Sheets, Stripe, Shopify, and internal tools. I’m highly experienced in AI voice agents and real-time systems, integrating Twilio, speech-to-text (STT), text-to-speech (TTS), streaming APIs, and conversational state management to build production-ready voice and chat agents. I also work on computer-vision and multimodal pipelines, combining vision models, tracking, and sensor data for advanced use cases. From an infrastructure and MLOps perspective, I deploy and scale systems using Docker, Linux servers, cloud VPS, CI/CD pipelines, and GPU-accelerated environments. I care deeply about observability, logging, error handling, security, and cost optimization in AI systems. Above all, I love turning business problems into automated, intelligent systems—reducing operational friction, increasing efficiency, and building products where AI is not a feature, but a core capability. If you need AI agents, automation pipelines, or full-stack systems that actually work in production, that’s exactly what I build. less -
Hire billybryan98
Hello, I'm Billy Bryan, a passionate and results-driven Full Stack Web Developer with over a 6 years of experience in building cutting-edge websites and web applications. I specialize in delivering efficient, scalable, and user-friendly digital solutions tailored to your business needs. With a keen eye for detail and...Hello, I'm Billy Bryan, a passionate and results-driven Full Stack Web Developer with over a 6 years of experience in building cutting-edge websites and web applications. I specialize in delivering efficient, scalable, and user-friendly digital solutions tailored to your business needs. With a keen eye for detail and a strong focus on problem-solving, I ensure every project I work on exceeds expectations and drives measurable results. Backend Development ✔️ Python: Flask, Django, RESTful APIs, data processing. ✔️ C#: ASP.NET Core, application development, Azure integrations. ✔️ PHP: Laravel, WordPress, custom CMS solutions. ✔️ SQL & Databases: PostgreSQL, MySQL, Couchbase, TypeORM. Frontend Development ✔️ React.js: Next.js, Remix.js, Astro.js ✔️ JavaScript: Angular, Vue, Vuex, TypeScript, jQuery. ✔️ CSS Frameworks: Bootstrap, Tailwind CSS, SCSS, LESS. ✔️ Responsive Design: HTML5, CSS3, Figma, pixel-perfect, cross-browser compatibility. Tools & Platforms: ✔️ Version Control: Git, GitHub, GitLab, Bitbucket ✔️ Cloud: AWS, Azure, Google Cloud, Couldflare ✔️ DevOps: Docker, CI/CD pipelines, Jenkins. ✔️ Collaboration: Trello, Slack, Jira. What I Offer ✔️ Custom Web Applications: Fully responsive and optimized for performance. ✔️ API Development & Integration: Building and connecting APIs for seamless data exchange. ✔️ Database Design & Optimization: Efficient data models and query performance tuning. ✔️ Migration & Upgrades: Smooth transitions with zero downtime. ✔️ Full-Stack Solutions: From UI/UX design to backend logic and deployment. I'm passionate about turning your ideas into functional, scalable, and visually appealing digital solutions. Whether you need a one-off project or long-term collaboration, I’m here to help. Let's bring your project to life! Let’s discuss your project needs and start building something amazing together. Best regards, Billy Bryan less -
Hire jeremyc85
I specialize in building high-performance mobile applications and video streaming systems that are fast, secure, and optimized for real-world network conditions. From developing scalable mobile apps using JavaScript/TypeScript (React Native) to optimizing video delivery pipelines and network performance, I help...I specialize in building high-performance mobile applications and video streaming systems that are fast, secure, and optimized for real-world network conditions. From developing scalable mobile apps using JavaScript/TypeScript (React Native) to optimizing video delivery pipelines and network performance, I help businesses deliver smooth, reliable streaming experiences at scale. With strong expertise in mobile development, streaming technologies, and API systems, I go beyond basic app development. I focus on performance, low latency, and security—ensuring your app performs flawlessly even under poor network conditions. What I Deliver - Develop cross-platform mobile apps using React Native (JavaScript/TypeScript) - Build and optimize video streaming features (HLS, DASH, adaptive bitrate) - Improve network performance, buffering, and load times - Implement secure video delivery (DRM, token-based access, encryption) - Integrate scalable backend APIs and real-time data systems - Optimize app performance (memory, CPU, rendering, network usage) - Debug and fix streaming issues, crashes, and playback errors Core Expertise - JavaScript & TypeScript (advanced application architecture) - Mobile Development: React Native (iOS & Android) - Video Streaming: HLS, MPEG-DASH, adaptive bitrate streaming - Performance Optimization: low latency, buffering reduction, caching - API Development & Integration (REST, WebSockets) - Backend: Node.js (streaming services & APIs) - Media Processing: FFmpeg pipelines for video handling - Security: secure streaming, authentication, encrypted delivery Featured Experience Highlights - Built mobile streaming apps with optimized playback and minimal buffering across unstable networks - Improved video load times and reduced latency through adaptive bitrate and caching strategies - Developed secure video delivery systems with token-based authentication - Integrated real-time APIs and streaming services into scalable mobile apps - Optimized React Native apps for performance, reducing crashes and improving responsiveness Let's build something powerful—fast, secure, and built for scale. Send me a message and let's discuss your streaming or mobile app project. less -
Hire Bwatter
🌟Your success is guaranteed as my progress depends on it 🌟 I provide fast, high-quality solutions to your project needs quickly and I am available, feel free to drop a message to initiate a chat 💬. I know you need someone who understands your goals, and is available to help you always by ensuring you succeed because...🌟Your success is guaranteed as my progress depends on it 🌟 I provide fast, high-quality solutions to your project needs quickly and I am available, feel free to drop a message to initiate a chat 💬. I know you need someone who understands your goals, and is available to help you always by ensuring you succeed because his success ultimately depends on your progress. As highlighted on my profile, my contributions have significantly impacted my client success, leading to numerous positive star reviews (⭐⭐⭐⭐⭐) for projects completed. You will experience the same best level of service professionalism because clients who have worked with me made these glowing reviews: ✅ "Did a great job before the deadline." ✅ "Pure Excellence!!! Shall continue to use his services in the future." ✅ "Did a great job. Fixed the issue quickly. Will hire again." ✅ "Gets work done right away! Wow, so fast, really fast-actually exceeded my expectations. Great job, mate!!!" Many clients continue to engage me in recurring work due to the consistent, high-quality service they receive, which means your chances of getting the best services is guaranteed. Services I offer include(although I am not limited to this list): ✅ Programming Services: ✓ Python ✓ R ✓ JavaScript ✓ VBA ✓ PHP ✅ Web Services: ✓ WordPress ✓ Shopify ✓ Wix ✓ Drupal ✓ Joomla ✓ Squarespace ✓ Email Template Design ✓ XML ✓ HTML5 ✓ HTML ✓ CSS ✓ CSS3 ✓ Responsive Web Design ✓ Progressive Web Apps (PWA) ✅ Data Entry/Processing and PDF Services: ✓ Google Sheets, Excel, Spreadsheet ✓ Google Docs ✓ Microsoft Word Documents ✓ PowerPoint, Google Slides ✓ PDF (W2 Form, 1040 form, Paystubs, Bank Statements) ✓ Electronic Form (Field Validation, Auto Calculation, Auto Population) ✓ Adobe Acrobat Pro ✓ ABBYY Finereader ✓ Excel VBA / Google Sheet Automation, Formulas and Macros ✅ IT Support Services: ✓ Microsoft Office / 365 support ✓ OS ✓ Troubleshooting ✓ Computer Repair ✓ Data Management ✓ Network Administration ✓ Network Security ✓ Performance Tuning ✓ LibreOffice ✓ Active Directory ✓ Technical Support ✓ Application Support ✓ System Administration ✅ Database/Data Analysis Services: ✓ Web Search ✓ Web scraping ✓ Data Collection ✓ Project Management ✓ Research ✓ Product Sourcing ✓ Market Research ✓ Internet Research ✓ Business Research ✓ Data Cleansing ✓ Data Modeling ✓ Data Analysis ✓ Claris FileMaker ✓ Microsoft Access DB, SQL, MySQL, Database Management ✓ Data Visualization :Tableau, Microsoft Power BI with DAX development ✓ Reports ✓ Dashboards ✓ Data Model ✓ Database Development ✅ Additional Services: ✓ Primavera P6 ✓ Contact List / VCard for Windows, Mac, Apple, Android, Outlook ✓ Mail Merge ✓ Audio Services ✓ Copywriting ✓ Audio Processing ✓ Audio/Video Transcription ✓ Bookkeeping ✓ Invoicing ✓ Credit Note ✓ Virtual Assistant 💬 Feel free to drop a message to initiate a chat. Thank you for visiting my profile as I look forward to building a successful, positive working relationship with you! less -
Hire Hrolgar
I build backend systems, APIs, and integrations that work in production -- not just in demos. Recent deliveries: - Bittensor network monitoring bot with real-time surge alerts and subnet ranking (Python, Telegram) - AI-powered workflow automation pipelines with notification systems - Full portfolio site with CMS,...I build backend systems, APIs, and integrations that work in production -- not just in demos. Recent deliveries: - Bittensor network monitoring bot with real-time surge alerts and subnet ranking (Python, Telegram) - AI-powered workflow automation pipelines with notification systems - Full portfolio site with CMS, automated CI/CD deploy, and analytics - Enterprise compliance platform (Blazor, Azure, Sanity CMS) - Trading backtesting engine -- Renko strategy conversion from PineScript to Python, full P&L and drawdown analysis - Regression analysis and statistical modeling for business datasets (Python, Excel) What I deliver: - API design and implementation (.NET, Node.js, Python, FastAPI) - System integrations -- third-party APIs, payment providers, data pipelines - Backend architecture -- clean, testable, production-ready - React/TypeScript dashboards and internal tools - Docker containerization and deployment - Data analysis, regression, Excel automation, trading tools Core stack: C#, .NET, Python, Node.js, TypeScript, Docker, PostgreSQL, REST APIs Portfolio: https://www.hrolgar.com less -
Hire taraskkorol
I build modern web applications and AI-powered SaaS products from idea to production. My focus is creating reliable, scalable systems that are easy to maintain and ready for real users. I work across frontend, backend, APIs, and AI integrations, helping startups and businesses turn concepts into working products...I build modern web applications and AI-powered SaaS products from idea to production. My focus is creating reliable, scalable systems that are easy to maintain and ready for real users. I work across frontend, backend, APIs, and AI integrations, helping startups and businesses turn concepts into working products quickly and cleanly. What I can help with: • Full-stack web development • AI features and automation • SaaS architecture and MVP builds • API integrations and performance optimization - Mobile App development with AI Integration I value clear communication, realistic timelines, and delivering solutions that actually solve business problems. less -
Hire lcblucas
English version: SW4 Tecnologia provides high-level IT consultancy focused on building secure, resilient, and fully automated technology environments. We bridge the gap between world-class hardware and intelligent software to drive operational excellence. What We Deliver: • Network Security (Fortinet Partner &...English version: SW4 Tecnologia provides high-level IT consultancy focused on building secure, resilient, and fully automated technology environments. We bridge the gap between world-class hardware and intelligent software to drive operational excellence. What We Deliver: • Network Security (Fortinet Partner & Reseller): We specialize in the deployment and lifecycle management of FortiGate firewalls. As an authorized partner, we offer next-gen protection, secure VPNs, and optimized SD-WAN solutions tailored to enterprise needs. • Proactive Monitoring (Zabbix): We implement full-stack observability using Zabbix. Our solution ensures real-time health tracking of your network, servers, and services, backed by custom alerting systems. • Enterprise Automation (Ansible & Red Hat): Leveraging Red Hat’s Ansible, we automate complex infrastructure deployments and configuration management, ensuring consistency and speed across your entire environment. • Custom Python Development: We go beyond standard tools by building bespoke Python-driven automations. This includes custom API integrations, automated data reporting, network health-check scripts, and specialized bots to streamline your business logic. The SW4 Advantage: Expertise in global standards met with the flexibility of custom coding. Whether through Ansible’s orchestration or Python’s versatility, we ensure your IT infrastructure works for you 24/7. Versão português: A SW4 Tecnologia é uma consultoria especializada em transformar a infraestrutura de TI em um motor de eficiência e segurança. Combinamos parcerias globais com desenvolvimento customizado para entregar soluções que eliminam falhas e otimizam processos. Nossas Especialidades: • Redes e Segurança (Parceria Oficial Fortinet): Como revendedores autorizados Fortinet, projetamos e implementamos soluções de FortiGate (NGFW). Focamos em segurança perimetral robusta, SD-WAN e arquiteturas de rede que suportam o crescimento do seu negócio. • Monitoração Avançada com Zabbix: Implementamos visibilidade total da sua operação. Através do Zabbix, monitoramos servidores, ativos de rede e aplicações em tempo real, com dashboards estratégicos e alertas inteligentes. • Automação de Infraestrutura (Ansible & Red Hat): Utilizamos o ecossistema Red Hat/Ansible para padronizar configurações e gerenciar parques tecnológicos com agilidade, reduzindo erros humanos em tarefas de larga escala. • Automações Customizadas em Python: Desenvolvemos ferramentas sob medida com Python para integração de APIs, scripts de manutenção preditiva, bots de notificação para SOC/NOC e automação de fluxos de trabalho que não possuem soluções nativas. O Diferencial SW4: Não apenas instalamos tecnologia; nós a integramos. Com o poder do Ansible e a flexibilidade do Python, garantimos que sua rede e segurança operem de forma autônoma e inteligente. less
