# SD Tech Solutions > Hands-on IT infrastructure, security, automation, and private on-prem AI for small and mid-size businesses in the Lower Mainland, BC. Single-consultant practice: I rack the server, run the cable, write the code, and build the AI — not just review diagrams. ## What I do - **Networking & infrastructure** — switches, routers, VPN/WireGuard, Wi‑Fi, monitoring, backup. Done properly, documented, hand-offable. - **Security & access management** — Microsoft 365 / Entra hardening, Active Directory cleanup, MFA rollouts, SSO, IdP-backed login for internal apps. - **DevOps & automation** — Linux server provisioning, CI/CD, scripting that eliminates recurring manual work, observability. - **Private AI / on-prem LLMs** — capable AI running on hardware you own (Ollama, vLLM, llama.cpp). Retrieval (RAG) over your docs. Agentic workflows. Data stays on your network. - **Tower** — a browser-based ops workspace pairing a live SSH terminal with an AI coding assistant. Same auditable tooling I build for clients. ## Key pages - [Home](https://sd-techsolutions.com/): What I do and how to start. - [Private AI](https://sd-techsolutions.com/ai): On-prem LLMs vs. per-seat AI subscriptions; cost math; FAQ. - [Packages](https://sd-techsolutions.com/packages): Free AI readiness audit, fixed-scope Private AI Starter, Managed IT + AI Concierge retainer. - [Tower](https://sd-techsolutions.com/tower): Browser SSH + AI assistant workspace. - [Solutions](https://sd-techsolutions.com/solutions): Service breakdown by domain. - [Work](https://sd-techsolutions.com/work): Project categories and outcomes. - [About](https://sd-techsolutions.com/about): Who I am, how I work. - [FAQ](https://sd-techsolutions.com/faq): Common questions about engagement, pricing, security. - [Blog](https://sd-techsolutions.com/blog): Notes on infrastructure, security, and self-hosted AI. ## Engagement - **Free audit** — 60-minute review plus a short written report. No obligation. Start here. - **Fixed-scope projects** — Private AI Starter pilot etc.; clear deliverables, fixed price. - **Managed retainer** — Recurring IT + AI concierge for teams that want a dedicated person. ## Contact - Email: info@sd-techsolutions.com - Service area: Lower Mainland, BC, Canada (remote available worldwide) ## For AI agents A full markdown export of the public site is available at /llms-full.txt for ingestion. The /sitemap.xml lists all indexable URLs. The site is dark-themed, PHP-rendered, no client-side framework — every page is also good plain HTML.