Combining modern Linux systems engineering, zero-trust network design, and precision component-level hardware repair across Orange, Los Angeles, and San Diego Counties.
High-throughput network architecture and secure site connectivity. We deploy 10GbE fiber backbones, UniFi & Omada enterprise SDN, VLAN segmentation, mesh Wi-Fi 7/6E, Cloudflare Tunnels (zero open inbound ports), and WireGuard/Tailscale site-to-site mesh overlays with dual-WAN failover.
Bare-metal and virtualized deployments across Linux (Ubuntu Server, Debian, Proxmox VE, Rocky/RHEL) and hybrid Windows Server environments. We engineer hardened open-source firewalls (pfSense, OPNsense, WireGuard, nftables), containerized services, and high-availability perimeter security alongside SonicWALL and Cisco hardware.
Sovereign data storage architecture and emergency recovery. We build TrueNAS SCALE & ZFS pools with immutable snapshot schedules, automated offsite encrypted replication (3-2-1 backup strategy), air-gapped ransomware protection, and laboratory-grade file recovery from degraded RAID, NVMe, and SSD/HDD media.
Modern defensive cybersecurity and endpoint hardening. We implement Zero-Trust Network Access (ZTNA), CrowdSec & fail2ban automated threat banning, Suricata IDS/IPS packet inspection, DNS sinkholing (Pi-hole), and compliance-certified audits fulfilling California State Bar Rule 1.6 and HIPAA standards.
Component-level bench diagnostics and emergency repairs for mission-critical workstations, servers, and production laptops. We troubleshoot kernel panics, Windows BSOD loops, motherboard power rail faults, VRM thermal throttling, memory bit-flips (ECC validation), and power supply ripple.
Handcrafted high-performance compute rigs. We engineer acoustic-tuned Local AI & Deep Learning towers (NVIDIA RTX 4090/5090 clusters optimized for Ollama, PyTorch, and local inference), 4K competitive gaming PCs, custom loop liquid cooling, and multi-threaded CAD / 3D rendering workstations.
Transform your environment. We offer professional integrations for audio/visual setups, intelligent home automation, and comprehensive physical security.
Premium audio and visual configurations for homes and boardrooms. We handle everything from home theater design and multi-zone audio distribution to conference room projector installations.
Connect your entire environment. We install and configure smart lighting arrays, climate control thermostats, automated window shades, and integrated voice control systems.
Robust physical security for complete peace of mind. We provide comprehensive CCTV camera installations, IP network cameras, NVR/DVR setups, smart locks, and 24/7 monitoring integrations.
Public cloud subscriptions are expensive and vulnerable. We build self-hosted, AI-powered infrastructure tailored for industries where data privacy and regulatory compliance are non-negotiable.
NIST 800-171 & CMMC
Strictly controlled environments for parts brokers handling CUI.
HIPAA Compliance
Absolute patient data sovereignty and automated intake workflows.
CA Bar Rule 1.6 Compliant AI Stack →
Attorney-Client Privilege
Uncompromised discovery data, time tracking, and matter management.
Zero SaaS Drain
Automated payroll, geofenced mobile clock-in, parent portal, and attendance.
HNWI Privacy
Secure deal rooms, escrow tracking, and multi-language translation pipelines.
See how much public cloud subscriptions are costing your business every month compared to owning your own Sovereign Infrastructure.
* Estimates are based on industry averages for enterprise SaaS licensing.
Why pay $50,000/year for Salesforce and Google Workspace? We architect and deploy military-grade open-source alternatives (like Nextcloud and ERPNext) directly on your bare-metal servers. Achieve 100% feature parity with zero monthly licensing fees.
Stop sending sensitive patient data or legal documents to OpenAI. We build self-hosted n8n automation pipelines integrated with local language models (Ollama). Sanitize leads, translate documents, and automate intake entirely within your firewall.
When off-the-shelf software bottlenecks your growth, we engineer the exact tool you need. From complex medical billing portals to proprietary legal discovery tools (like our Arte platform), we build full-stack applications that give you an absolute operational advantage.
Combining immediate hands-on troubleshooting across Orange, Los Angeles, and San Diego Counties with enterprise-level software engineering for clients worldwide.
Every company is different and has varied requirements. We analyze your specific needs to find cost-effective solutions and procure the right software/network hardware for you.
We don't apply quick bandaids. Whether diagnosing a motherboard fault or designing a database schema, we build stable foundations engineered to prevent recurring failures.
Our field of expertise is always growing and adapting. We bridge the gap between traditional IT maintenance and cutting-edge artificial intelligence, keeping your business nimble.
Language is never a barrier to elite engineering. We are fully fluent in English, Spanish, and Russian, allowing us to seamlessly support international clients and cross-border teams.
We are proud to maintain a 5-Star Rating on Google from businesses and residents across Southern California.
"I can't thank Mark enough for the incredible work he did on my PC! Not only did he expertly remove the malware that had been causing major issues, but he also resolved a frustrating problem with my graphics card that I'd been dealing with for weeks. His expertise, attention to detail, and professionalism were evident from start to finish. My PC runs faster than ever, and I can now enjoy smooth graphics and top-notch performance. Mark went above and beyond to ensure everything was working perfectly. Highly recommend his services to anyone in need!"
"Mark was great, came over to my house to transfer all of my data to my new computer. It wasn't easy getting all my emails to my new computer, but he got it done. I would recommend him to any. Price was very reasonable."
"OC Computer Fix is the place to go. Mark is a very knowledgeable and dedicated professional. My PC crashed regularly and became unusable. He methodically run all kinds of analysis and eventually fixed the problem. His pricing is more than fair. He doesn't have a lot of overhead and he let his clients profit from it. I can highly recommend Mark."
Learn to build, deploy, and secure private networks. From enterprise homelabs to youth summer camps—master the infrastructure that powers modern systems.
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Direct architectural blueprints, security post-mortems, and compliance deep dives from our lab deployments across Orange, Los Angeles, and San Diego Counties.
How agentic static reverse engineering, local decompilation, and MCP bridges empower sovereign enterprises to dismantle proprietary cloud lock-in and liberate business logic into self-hosted infrastructure.
How we built a self-hosted operations suite for afterschool foundations—unifying automated payroll, mobile clock-ins, and zero-password parent portals to eliminate thousands in recurring subscription fees.
Deep dive into Apex Legal's core architecture: relational PostgreSQL docket modeling, automated PDF & LEDES invoice engines, and strict role-based dashboards complying with California State Bar Rule 1.6.
Why moving local agentic tools to Model Context Protocol (FastMCP) slashes token overhead, keeps confidential credentials out of LLM context windows, and enables instant universal agent connectivity.
From database migrations and local LLM fine-tuning to hardware build guides—read our full archive on the official engineering publication.
Everything you need to know about our data sovereignty engineering, on-premise AI deployments, transparent pricing, and Southern California service radius across Orange, Los Angeles, and San Diego Counties.
Complete our interactive assessment to tailor your infrastructure and compliance analysis.
