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I'm the Level III IT consultant who works for other MSPs and IT consultancies — the senior hand you bring in for the hard problems junior techs escalate: network redesigns, cybersecurity hardening, server migrations, and emergency triage. 30+ years in the trenches, U.S. Navy trained, Top Rated with a 100% Job Success score. Based in the Chicago area / Northwest Indiana, with remote and on-site coverage nationwide. Where I go deep: - Networking & Security: Design, configure, and secure networks with SonicWall, Fortinet, Cisco/Meraki, UniFi/Ubiquiti, TP-Link Omada, and Netgear — firewalls, VLANs, VPNs, 2FA/MFA, site-to-site bridges. - Servers & Hosting: Nearly 30 years of cPanel/WHM, DNS, POP3/IMAP, Microsoft 365, and Google Workspace; Apache/PHP/MySQL on RHEL/CentOS/AlmaLinux for reliable hosting and maximum uptime. - Systems & Cloud: Windows Server 2025, Windows 11, Linux, and macOS; Azure/Hyper-V virtualization and AWS/GCP deployments — from design through deployment and ongoing operations. - Microsoft Stack: Microsoft 365 administration and migration, Entra, Intune, and Active Directory Group Policy. Industry experience: HIPAA-compliant IT for medical/dental, Dealer Management Systems for automotive groups, secure corporate networks, and structured wiring and access control for warehouses. How I work: Precise and methodical. Project-based engagements first, hourly for smaller targeted work. I bring clear status updates and a bias toward documenting what I change, so the next person — internal or external — can pick up where I left off. I coordinate across internal IT teams, third-party vendors, and contract boards when an engagement requires it. Background: Self-taught IT professional since 1997; U.S. Navy Aircrewman, Patrol Squadron 26 (VP-26), 1990–1995, earning a Navy Achievement Medal for technical expertise on a classified surveillance system. Network Operations Center engineer at eSignal/Interactive Data, 2000–2007. Founded Ateki LLC in 2002. If you need a senior consultant who can redesign a network, harden security, migrate a server room, or own the escalations your team is stuck on — and who shows up, communicates, and documents — let's talk about your project.

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

👋 Hi there! I’m Julia — a Full-Stack Developer with 4+ years of experience designing, developing, and deploying scalable web applications. I’m passionate about writing clean, efficient code and building robust, well-structured RESTful APIs. 💻 Software: I specialize in backend development with Python (Flask, FastAPI, Django) and frontend development with JavaScript and TypeScript — creating seamless, scalable, and user-friendly experiences from database to UI. 🌐 Network Engineering: Beyond software, I also work as a WAN Engineer for Burning Man, deploying and maintaining large-scale network infrastructure in extreme desert conditions. My work involves hands-on networking — from configuring routers and VLANs to optimizing connectivity across long-distance wireless links. I’m deeply interested in the OSI model’s physical and data link layers and love solving real-world connectivity challenges. 🎶 Art: In my free time, I live-code music and visuals in SuperCollider and build experimental chatbots and LLM models — blending art, code, and AI. 🧰 Stack Languages: Python, GDScript, Bash, SQL, JavaScript, TypeScript, HTML, CSS E-Commerce - Shopify (custom development & themes), WordPress Frameworks & Tools: Flask, Django, FastAPI, AWS, Docker, Git, Linux, Proxmox, pytest Databases: PostgreSQL, SQLite DevOps: TCP/IP, DNS, DHCP, VPN, VLAN, OSPF, BGP, Grafana, Wireshark

I am an IT professional with a strong foundation in software engineering and tech support, currently transitioning into cybersecurity. --- CySA+ Certified --- My technologies stack includes React, TypeScript, Node.js, Nest.js, Jest, Postman, Ruby on Rails, SQL, Git, RESTful APIs, Splunk, CISCO IOS, PowerShell, Linux, WireShark, and more I am available to be contacted at olesyam.miller@gmail.com

I am a US-based Computer Scientist, Technical Architect, and AI Solutions Engineer with 30 years of experience. I am certified as Expert Vetted on UpWork (top <1% of all users), with 5-star rating, rave reviews, and 100% success score. ➤ Career Highlights I've worked with startups, Fortune 500 companies (Ford), and government agencies (CDC), and have held executive roles (CTO, CEO) at two successful startups doing millions in revenue with products reaching tens of millions of users worldwide. I also author and maintain open source libraries downloaded 25+ million times per month, used in production at GitHub and Microsoft. GitHub uses them in their core infrastructure and is one of my financial sponsors (more info below). ➤ What I Do I design and build software systems that scale — from architecture blueprints and database infrastructure to full production applications (backend, infrascruture, frontend, and more). My recent focus has been on AI-powered platforms, including LLM integration, AI agent development, multi-agent orchestration, and tool-calling pipelines using OpenAI, Claude, and open source models. ➤ AI & Agentic Development I build production AI systems — not wrappers around ChatGPT. Recent work includes multi-agent orchestration with tool-calling loops, MCP server development for document analysis, LLM-powered scoring and recommendation engines, and AI-assisted codebase analysis across 170k+ line codebases. I work daily inside Claude Code, OpenAI, and OpenRouter APIs. ➤ Why Technical Architecture Matters Most technical projects fail because they have a poor architecture blueprint — or none at all. Most developers aren't architects, and without the right foundation, even projects that make it to launch grind to a halt within months as technical debt makes it impossible to build further. I create full "bone structures" on the code, database, and server levels that establish patterns developers can build on confidently. By mapping out growth tracks early, we ensure the system can scale without endless rewrites. This is the difference between another great idea that stalls and a multi-million user success story. ➤ Open Source I wrote and maintain multiple open source libraries used worldwide, collectively downloaded over 25 million times per month. Highlights include the TypeScript compiler tools (~3M/month), node-html-parser (~20M/month), and node-html-markdown (~1.4M/month). GitHub itself financially sponsors this work, which is part of their core infrastructure. ➤ Working with Me I partner with startups, established companies, and enterprise teams who need expert-level architecture, AI integration, or full-stack development. I often deliver 2-4x faster than typical senior developers — clients regularly find the final cost beats offshore alternatives, because it's done right the first time and delivered faster. ➤ UpWork Stats ⁍ Expert Vetted (top <1%) + Top Rated Plus ⁍ $400k+ completed, 5-star rating ⁍ Rave reviews (most clients leave multiple reviews per project) ⁍ Almost all clients form long-term partnerships ➤ More Info ⁍ UpWork Reviews: See below ⁍ GitHub: nonara (pinned projects are all maintained by me) ➤ Keywords TypeScript, JavaScript, Node.js, Python, React, PostgreSQL, MySQL, AWS, Docker, Kubernetes, Electron, C#, .NET, Swift, Prisma, Redis, GraphQL, REST API, Next.js, FastAPI, Flask, Terraform, Pulumi, Shopify, AI Agent Development, LLM Integration, OpenAI API, Claude API, MCP Server, Model Context Protocol, Multi-Agent Systems, Tool-Calling Pipeline, RAG, Prompt Engineering, Context Engineering, Claude Code SDK, SWE-Agent, AI Agent SDK, Multi-Agent Orchestration, Web Scraping, Playwright, Browser Automation, Browser Extension Development, Chrome Extension, Cross-browser Extension, Solutions Architecture, Database Optimization, Infrastructure as Code, DevOps, CI/CD, Full-Stack Development, Technical Leadership, Code Rescue, ANTLR, CEF, Chromium Embedded Framework, ts-patch, TypeScript Compiler Plugin, TypeScript AST, TypeScript Compiler, Compiler Design, Language Server Protocol, LSP, Parser Development, BrowserView, Embedded Browser, Desktop Application, node-html-parser, node-html-markdown, V8 Engine, PostgreSQL V8, Custom Protocol, Reverse Engineering, Packet Analysis, WireShark Plugin, ArtNet, DMX, pcap, Database Forensic Recovery, IPv6 Scraping, Shopify App, Remix, Angular, PHP, Bash, OAuth, Auth0, SSO, JWT, WebRTC, SocketIO, Monorepo, Webpack, Vite, WordPress, n8n, Node-RED, Twilio, Stripe, GitHub Actions, GitLab CI, React Native, Firebase, pgvector, Embeddings, Vector Database, SaaS Architecture, Multi-tenant

Current Certifications: * CCENT ( Cisco Certified Network Technician ) * CCNA (Cisco Certified Network Admin (Routing & Switching)) * CCNP (Cisco Certified Network Professional (Routing & Switching)) * CCNA-SECURITY (Cisco Certified Network Security Admin) * SECURITY+ CE (CompTIA Certified SECURITY) * CEH (Certified Ethical Hacker) I am a Sr. Network and Security Engineer (SME) with expertise in Cisco Network Engineering and Cyber Security Engineering with year of I.T. experience managing private and government enterprise networks and Cyber security Network environments for large and small businesses . I have over 18+ years total experience as a lead Sr. network engineering SME as my foundation , and 9 yrs experience in Cyber Network Security infrastructure , design, configurations, troubleshooting, Cyber threat hunting. Also upgrading enterprise networks and security infrastructures for private companies , government organizations , including large and small business Networks and information systems. These skills include SME experience in Cisco Routing and Switching, ASA Firewalls, Palo Alto, Pfsense , VPNs, F5 Load balancer, WLAN, VoIP, and Cyber Security tools and SIEMS and Network Scanning, Windows Server, and WiFi networks.