An experienced software developer/architect/product development manager with over 15 years of solid experience in developing advanced and secure networking software for routers, switches, firewalls, servers, IoT devices/gateways and network appliances. Possesses deep working knowledge in IPv6, routing protocols, operating system, firewall, client-server application, management protocols and applications. Very proficient in C, C++, Perl, Unix scripting, modular and OOP programming, client-server and has advanced working skills in PHP, Ruby/Rails, Java, SQL, non-SQL and Web technologies. Mainly used FreeBSD and Linux in all projects. Heavily involved in all phases of development, from conceptualization, requirement specification making, designing, implementation, testing and maintenance. I am seeking opportunities to design and develop network appliances, IoT devices and embedded systems from the ground up, migrate networking applications to incorporate secure technologies and run on IPv4 and IPv6 and build intuitive and secure websites or web-based management interfaces. I am also seeking consulting services in product development, management, QA and coaching as well as design, deployment, pen-testing and monitoring of networking and security services and infrastructures. Summary of competencies and skills - System/network/security administration using open source and commercial solutions such as pfSense, OPNsense, BIND/DHCP/DNS, Freeswitch/Asterisk/SIP/VoIP, Sophos, Sonicwall, OpenWrt, ELK Stack, Grafana/Prometheus, Zabbix, Nagios, SNMP, OpenVPN, IPsec, Wireguard, HAProxy, MongoDB, MySQL/PostgreSQL, Redis, Nginx, Apache, Squid, Snort, OpenStack, Radius, OpenLDAP, Ceph, RabbitMQ, Kali Linux, Connectwise Manage, Connectwise RMM, Connectwise Perch, Bitdefender, WebRoot, Auvik, MQTT - IoT, LoraWAN, Chirpstack, Sensors, Rasp PI integration/interfacing, BACnet, BMS - Unix and Linux system, security, and network administration and dual-stack network/sockets programming - System/Application programming with C/C++, PHP, Ruby, Perl and Shell scripting. - Cloud computing and networking on AWS, IONOS and Digital Ocean environments - Virtualization with Proxmox, ESXi, vSphere, and KVM - Containerization using Dockers - Project management in various methodologies such as Extreme programming, Agile, Iterative, Waterfall, Prototyping, and Scrum - Software and hardware product development covering all phases of product life cycle - Secure networking software development for routers, switches, and network appliances in IPv4 and IPv6 network stacks - Software testing automation and Continuous Integration (CI) using Gitlab/Github, Jenkins, Robot Framework, Selenium - Risk assessment, Penetration testing, Disaster Recovery, Compliance and Interoperability testing, Performance and Capacity testing and High Availability deployment, management - Web Services, Application and network design, deployment, monitoring, and management - Managed Services Provider support and deployment, Connectwise suite(Manage, RMM, Perch), Bitdefender, Webroot, Auvik - Asset management, Document and Source Code control - Human resource training, career and life coaching

Expert-Vetted on Upwork (Top 1% of security professionals). If you're building on the cloud and want to find the security gaps attackers would exploit — before they do — I can help. I’m a cybersecurity consultant and founder of Exfiltra, helping startups and enterprises secure their applications, cloud infrastructure, and DevOps pipelines. I have worked with organizations generating $6B+ in annual revenue and helped companies strengthen security across cloud environments, applications, and compliance programs. I personally lead security engagements and, when needed, bring in specialists from my team at Exfiltra to support larger or complex projects. Most clients hire me when they want to: ✔ Secure Azure / AWS / GCP environments ✔ Perform professional penetration testing ✔ Implement DevSecOps and secure CI/CD pipelines ✔ Prepare for SOC 2, ISO 27001, HIPAA, FedRAMP, or CMMC ✔ Improve security posture using industry frameworks CORE EXPERTISE AZURE & CLOUD SECURITY • Azure security architecture reviews • Microsoft Defender for Cloud & Sentinel • Identity security (Entra ID / Conditional Access) • Cloud configuration reviews and CIS Benchmark hardening APPLICATION SECURITY & PENETRATION TESTING • Web application penetration testing • API security testing • Mobile application security testing • Network and cloud penetration testing • Assessments aligned with OWASP Top 10 and OWASP ASVS DEVSECOPS & SECURITY AUTOMATION • Secure CI/CD pipelines (Azure DevOps / GitHub Actions) • Infrastructure as Code security (Terraform / Bicep) • SAST and DAST integration in pipelines SECURITY TOOLS • Snyk • Semgrep • OWASP ZAP • Burp Suite • Wazuh • CrowdStrike • Microsoft Sentinel AI & LLM SECURITY • AI application threat modeling • Prompt injection and model abuse testing • Secure architecture for AI-powered applications WHY CLIENTS WORK WITH ME • Upwork Expert-Vetted (Top 1% of freelancers) • Founder of Exfiltra – a cybersecurity services company • Supported by a team of security specialists for larger engagements • Contributor to OWASP ZAP • Experience securing environments for organizations generating $6B+ in revenue • Background in both software engineering and cybersecurity • Security research involving organizations like the U.S. Department of Defense NOT A GOOD FIT IF • You want to hack or recover social media accounts • You want enterprise-grade security but are not willing to invest in it If your goal is to build secure systems instead of reacting to breaches later, feel free to invite me to your job or send a message describing your project.

My name is Brent and I have over two and a half decades of progressive IT experience in all realms of Information Technology and related fields. I have held positions ranging from a help desk professional, to IT manager and CIO of medium sized businesses. I’ve managed teams and groups, coordinated large projects with many vendors and moving pieces with million-dollar budgets, and planned and implemented countless small to very large projects. Some of my skills include: Advanced Networking including advanced routing, cabling, 802.1x, 802.1ad, wireless, VLANs, and more Firewall and intrusion prevention across multiple brands including Sophos, WatchGuard, SonicWall, Fortinet, Juniper, and others Security and network hardening experience including RBAC, NAT and port protection, PKI infrastructure and certificates, and more Physical security, access control, and cameras system design, setup, and management Microsoft Active Directory Domains including DNS, group policy, RDP (Remote Desktop), and all other Microsoft Server features Expert in management of Microsoft software packages including SQL, Exchange, Office 365, and more including database management Experience designing failover and load balancing systems at the software (SQL, Exchange, many others) and hardware levels (VMWare, Raid, SAN, Datacenter, etc) SAN and storage products from many vendors including iSCSI and Fibre Channel Virtualization infrastructures including VMware, Hyper-V, and more Programming skills in several languages, and vast scripting experience in PowerShell, scripting (Powershell, VBScript), and others Vast experience with Server and Storage hardware from Dell, HP, Cisco, Nimble, NetApp, Pure Storage, EMC, Synology, and more Advanced operating knowledge of operating systems including Microsoft Server, Windows, and Mac OS Experience with VOIP from many different vendors including Cisco, Mitel, and old PBX systems Experience designing and operating data centers including layout, power design, and cooling management Experience managing and implementing cloud solutions from AWS, Azure, and more Vendor and Contract Management including contract renegotiations, licensing, and large project management Some of my certifications include: Cisco: CCNA, CCNP CompTIA: A+ Microsoft: MCP, MCSA, MCSE 2003, MCPS, MCNPS, MSBS, MCTS:Vista, MCTS: Windows Server 2008 Active Directory, MCTS: Windows Server 2008 Network Infrastructure, MCTS: Windows Server 2008 Application Platform, MCTS: Exchange Server 2010 Configuration, MCITP: Server Administrator 2008, MCITP: Enterprise Administrator 2008, MCITP: Exchange Messaging Administrator 2010 VMWare: VSP 4.1, VTSP 4.1, VCP 4.1/5.0/5.5, Exchange on VMware Accreditation Citrix: CCA XenApp 6, CCA Netscaler, CCA Access Gateway

As a dedicated father, husband, and business owner, I am a technology leader with over 20 years of experience in driving innovation and business growth. My passion lies in leveraging my curiosity, technical expertise, and business acumen to solve technology challenges for businesses. Known as the "MacGyver of Tech," I thrive on problem-solving and innovation, bringing a unique blend of engineering, disruptive technology design, and data science to every project. I have significant experience working with companies and teams of all sizes, consistently leading IT initiatives that enhance operational excellence and cost-effectiveness. As an expert in Artificial Intelligence with extensive experience in ChatGPT, I specialize in helping companies organize, formalize, fundraise, and execute rapid growth strategies. My ability to bridge the gap between technology and business enables me to foster innovation and deliver tangible results. I am always eager to connect with like-minded professionals and explore opportunities to collaborate on transformative projects. My personal specialties include: AI, email deliverability (MX, SPF, DKIM, DMARC, TXT), mobile app development (iOS, Android), technology consulting, CRM (Hubspot, Salesforce) builds, business analysis, operations, email marketing, lead generation, and product development launches.

I am a versatile IT professional with 6+ years of hands-on experience in IT support, network and server administration, cloud solutions, cybersecurity, and building infrastructure. I help businesses ensure smooth, secure, and efficient IT operations. I provide professional services in: IT Support & Consultancy: Setup, troubleshooting, and maintenance of laptops, printers, scanners, fax machines, switches, firewalls, and other IT equipment. Strategic IT guidance to optimize operations. Network Administration: Design, deployment, and troubleshooting of wired and wireless networks. Experience with network switches, routers, VOIP systems like 3CX and FreePBX, and connectivity solutions. Server Administration: Managing Windows and Linux servers, virtualization, backups, and server optimization. Cloud Solutions: Microsoft 365, AWS, managed backups, and virtualization solutions to enhance business productivity and scalability. Cybersecurity: Network security, endpoint security, vulnerability management, and ensuring your infrastructure is safe from cyber threats. Building Infrastructure: CCTV and surveillance systems setup for homes and businesses. I am committed to delivering reliable, efficient, and secure IT solutions tailored to your business needs. Let’s work together to simplify your IT and enhance your operations.

I’m a Wireless Solutions Engineer with 7 years of experience in Wi-Fi and DAS. Wi-Fi : Wi-Fi Design Tools : Ekahau, iBwave, EINO, Hamina, NetSpot, Sidos. Wi-Fi OEMS : Cisco, Aruba, Ruckus, Cambium, Juniper Mist, Ubiquiti, Edgecore. - Have worked on various Enterprise Wi-Fi designs Projects including Multi Dwelling units, Warehouses, Stadiums, Retail, High Rise, Offices, Industrial and Outdoor. - Designing robust and reliable WLANs for Coverage and Capacity requirements and generating heatmaps for Signal Strength, CCI, SNR, Capacity etc. - Preparing ROM and BOM including pricing of Access Points, Switches, SFP/SFP+, Cabling, UPS, Racks, Patch panels etc. Certifications : CWNE - Certified Wireless Network Expert. CWNA - Certified Wireless network Administrator. CWDP - Certified Wireless Design Professional. CWSP - Certified Wireless Security Professional. CWAP - Certified Wireless Analysis Professional. CWISA - Certified Wireless IoT Solutions Administrator.. RCWA - Ruckus Certified Wi-Fi Associate . Cellualr iDAS/oDAS : iBwave.

Technical Security Expertise: - Vulnerability Assessment and Penetration Testing (Nessus, OpenVAS, Acunetix) - Security Operations (Wazuh XDR & SIEM, AzureAD PAM & DLP, Darktrace NDR & EDR) - FortiADC Load balancer with WAF & Barracuda Email Security Gateway. - Network Security (FortiGate Firewall, Cisco FTD) - Backup and Recovery (Veeam, Azure Site Recovery, Symantec Backup Exec, DPM) Cloud Expertise: - Architected and supported secure, scalable cloud solutions across AWS and Oracle Cloud Infrastructure (OCI) using core compute, networking, storage, and IAM services. - Designed and implemented multicloud architectures (AWS–OCI) with secure VPN/IPSec connectivity, workload optimization, and high availability. - Applied cloud security best practices, including IAM least privilege, network segmentation, encryption, logging, and compliance aligned with CIS benchmarks. - Optimized performance, availability, and cost through capacity planning, monitoring, automation (IaC concepts), and cloud best-practice frameworks. System Administration: - Active Directory, Group Policy, Exchange Hybrid (On-Prem & O365) - VMware VCenter, Citrix XenDesktop, Postfix Email Gateway, Squid Proxy - SCCM Auto push installation & MDT (Microsoft Deployment Toolkit) Automation and Tools: - Powershell, Scripting (Python), Docker (Guacamole, BookStack) - JIRA, Freshdesk Ticketing System, RD Web for remote platform Soft Skills: - Leadership and Team Management - Meticulous Reporting and Documentation - Cross-functional Collaboration

I help businesses design, secure, migrate, and optimize their cloud environments with enterprise-grade precision. I have worked inhouse at microsoft and am currently a Microsoft Partner. With 14+ years of hands-on experience across Azure, AWS, Windows/Linux engineering, DevOps automation, cybersecurity (FEDRAMP, SOC2, HIPPA), and modern identity management, I am your one-stop, end-to-end cloud solutions partner. Whether you need: Azure Architecture & Support Cloud Migrations (Azure/AWS/M365/Email) Identity & Access Management (Entra ID, SSO, Conditional Access) Intune/Autopilot Deployment & Endpoint Security DevOps Automation & CI/CD Pipelines Infrastructure Hardening & Compliance Linux/Windows Server Engineering Environment Mapping, Design, & Documentation …I combine deep technical expertise with clear communication and fast execution to deliver secure, scalable, and cost-optimized solutions. If you're looking for a reliable, certified engineer who can take ownership of complex cloud work and deliver with confidence—you’ve found the right person.

I ship production systems, not prototypes. If you need a senior engineer to own your product end-to-end, architecture, AI integration, and delivery, that's what I do. My focus right now is integrating AI into real business operations: agents that handle live operations, RAG pipelines that query real data, and LLM-powered workflows that replace manual processes at scale. What I've shipped recently: → Senior Developer on the engineering team behind an AI voice agent platform that automated 70% of inbound call operations for a US hospitality company. I contributed to the full stack: real-time call handling, RAG pipelines for context retrieval, TTS/STT voice flows, and integrations with PMS and POS systems. Node.js, Python, LangChain — running in production handling real calls daily. → An AI-powered WhatsApp bot for building operations management, handling tenant requests and routing workflows end-to-end. My stack: Node.js, TypeScript, Laravel, Python, Vue/React on the frontend. AWS infrastructure, Docker, CI/CD. I've worked with OpenAI, Anthropic, LangChain, vector databases, and multiple voice AI platforms including VAPI. I work best with founders and technical leaders at US companies who have a real AI problem — not "add AI to our app" but "we need AI to handle 10,000 calls a month" or "we need RAG that actually retrieves the right context." I bring 15 years of production engineering and the ability to own a project from architecture to deployment. If that sounds like what you need, let's talk.

I am a certified professional with unique skillset and profound knowledge of DBA, Solution Architecture, SysOps and DevOps. With over 15 years of hands-on experience, I am designing, building, managing and optimizing various databases and environments for Startups, SMBs and Fortune 100 Enterprises from different industries. Reviews have it! ✅ DBA Expertise: 𝐃𝐁 𝐀𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Oracle 9i, 10g, 11g, 12c - 19c on premise and in Cloud, MS SQL, PostgreSQL, MySQL, SQL Server, and more. 𝐂𝐥𝐮𝐬𝐭𝐞𝐫𝐰𝐚𝐫𝐞: Automatic Storage Management (ASM), Real Application Clusters (RAC) 𝐎𝐫𝐚𝐜𝐥𝐞 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐞𝐝 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: Exadata, ZDLRA, Exalogic, ODA 𝐌𝐢𝐝𝐝𝐥𝐞𝐰𝐚𝐫𝐞 𝐚𝐧𝐝 𝐄𝐑𝐏 𝐚𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: NetSuite, Oracle E-Business Suite, Weblogic Server, Apache Tomcat, Glassfish, OBIEE, Discoverer, Fusion Middleware, OAM/IDM 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞-𝐜𝐥𝐚𝐬𝐬 𝐁𝐚𝐜𝐤𝐮𝐩, 𝐑𝐞𝐜𝐨𝐯𝐞𝐫𝐲 𝐚𝐧𝐝 𝐑𝐞𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧: RMAN, Dataguard, Golden Gate 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐒𝐜𝐫𝐢𝐩𝐭𝐢𝐧𝐠, 𝐚𝐧𝐝 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: bash, SQL, PL/SQL, Python 𝐂𝐥𝐨𝐮𝐝 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬: Oracle Cloud, AWS, Azure 𝐒𝐲𝐬𝐭𝐞𝐦 𝐀𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Unix and Linux, Windows (on premise or in Cloud) ✅ DevOps, SysOps Expertise: 𝐒𝐲𝐬𝐭𝐞𝐦 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠: Scalable, secure, and highly available designs tailored to business needs. 𝐒𝐲𝐬𝐎𝐩𝐬 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞: Managing virtual machines, containers, storage, backup, migration, networking, and databases. 𝐃𝐞𝐯𝐎𝐩𝐬 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: CI/CD, infrastructure as code (IaC), tools like Jenkins, GitLab CI/CD, Azure DevOps, etc. 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞: Data encryption, access control, IAM, GDPR, HIPAA, PCI-DSS compliance. Choosing me as your IT Architect, DBA, SysOps, and DevOps Engineer means you gain a trusted partner who will go the extra mile to deliver exceptional results and help your organisation thrive. Let's discuss your requirements and get you the best solution. Contact me today!