endreendi.com — IT support & infrastructure

Reliable IT support
in Bucharest.

Computers, Wi-Fi, networks, cameras, and technical problems — solved quickly and affordably. Local IT technician with 10+ years of experience helping people and small businesses.

I don't just fix problems — I design the infrastructure that prevents them.

10+ years of IT experience
Local Bucharest, Romania
Fast response & resolution
¯\_(ツ)_/¯ Learning Potential

Sound familiar?

These are the kinds of problems I help people solve every day. If something on this list matches your situation — I can help.

Slow or unreliable Wi-Fi that drops at the worst times

💻

Computers that crash, freeze, or run painfully slowly

🖨

Printers that stop working and refuse to cooperate

🌐

Internet or network problems you can't figure out

📷

Setting up cameras and security systems

💾

Data backup and protection from hardware failure


What I can help you with.

Practical IT solutions — explained in plain language, done properly, and built to last. I focus on finding the most cost-effective approach to real problems, so you get reliable results without overspending.

[01]

Computer Support

Computers that work the way they should — fast, stable, and frustration-free. Windows and Linux.

[02]

Reliable Networks & Wi-Fi

Networks and Wi-Fi that actually work — no dead zones, no drops, no mystery disconnections.

[03]

Business IT Setup

Everything your shop or office needs to run smoothly — POS, printers, computers, and network, all set up and working together.

[04]

Security & Monitoring

Surveillance and security systems that give you visibility and peace of mind — at home or at work.

[05]

Data Protection

Protecting your data so a hardware failure never destroys your business. Automated, local backups you can count on.

[06]

Self-Hosted Infrastructure

Own your infrastructure instead of renting it. Systems designed to be reliable, documented, and under your control.

[07]

Private AI Assistants

Your own AI assistant for your business — secure, private, and running on your own hardware. No cloud subscriptions, no data leaving your office.

[08]

Infrastructure Consulting

For teams and technical businesses that need systems designed properly — identity, virtualization, networking, and automation.

[09]

Workflow Automation

Repetitive tasks slowing your business down? I build automations that save you time, reduce errors, and let you focus on what actually matters.

endi@endreendi ~ — zsh
cat services.txt
# for the technical folks — here's what's under the hood
linux_admin → server setup · hardening · monitoring · backups
infra_design → proxmox clusters · vm orchestration · storage
iam → freeipa · sssd · kerberos · internal PKI
self_hosted → dns · git · vaultwarden · reverse proxies
ai_solutions → on-premise AI setup · private assistants · your hardware
consulting → architecture design · identity · infra planning
automation → workflow optimization · scripts · integrations
# all engagements include documentation and follow-up

Why work with me.

Deep Experience

Over 10 years working with IT systems, from home networks to enterprise-level infrastructure.

Honest Advice

I tell you what you actually need — not what sounds expensive. Practical solutions, no upselling.

Fast Learner

Technology changes constantly. I stay up to date and adapt quickly to new tools and challenges.

Easy to Work With

I explain things in plain language and make sure you understand what's happening with your systems.

Local Support

Based in Bucharest. On-site visits available. You're not talking to a helpdesk on another continent.

Reliable Follow-Up

I don't disappear after the job is done. Every engagement includes documentation and follow-up support.

No Fix, No Fee

If I can't solve your problem, you don't pay. Simple as that.


Built and operated in a real lab.

Most IT providers describe systems they've read about. My work is built on a dedicated lab environment where real infrastructure is designed, tested, and maintained continuously.

Every service I offer has been deployed and operated in this environment first — failures included.

The lab runs under the internal domain eendi.unix and mirrors the architecture of a small enterprise environment: segmented networks, centralized identity, internal certificate infrastructure, and a full virtualization layer.

If a design works here, it works in production.

Virtualization

  • Proxmox VE hypervisor cluster
  • LXC containers lightweight workloads
  • KVM / QEMU full VM isolation
  • ZFS storage with snapshots

Identity Infrastructure

  • FreeIPA directory + DNS + CA
  • SSSD + Kerberos centralized authn
  • Zitadel OIDC / OAuth2 IdP
  • Internal PKI TLS for all services

Network Architecture

  • OPNsense firewall & routing
  • VLANs segmented networks
  • WireGuard remote access VPN
  • Internal DNS split-horizon zones

Operations

  • Arch Linux daily driver + servers
  • Ansible configuration management
  • Git self-hosted repositories
  • Monitoring stack Grafana / Prometheus
── network topology ── [ internet ] │ ▼ [ OPNsense firewall ] ◄─ VLAN segmentation · stateful rules │ ├──────────────────────────┐ │ │ ▼ ▼ [ Management VLAN ] [ Services VLAN ] Proxmox cluster self-hosted apps FreeIPA / CA Zitadel · Git Monitoring WireGuard endpoint │ │ └──────────┬───────────────┘ │ ▼ [ FreeIPA ] ─── Kerberos ──► host authentication [ Zitadel ] ─── OIDC ──► service SSO [ Int. CA ] ─── TLS ──► encrypted services

I design systems, not just fix computers.

I design and build reliable infrastructure for small teams, developers, and technical businesses that want more control over their systems.

This includes identity systems, virtualization platforms, self-hosted services, automation, and secure network architecture.

Everything is designed to be understandable, documented, and maintainable long-term.

Example projects:

  • Self-hosted infrastructure with Proxmox virtualization
  • Identity and access management with FreeIPA / Zitadel
  • Secure internal networks and service segmentation
  • Backup and disaster recovery strategies
  • Private AI systems running on local hardware

Systems thinking, not quick fixes.

Technology problems are rarely isolated. Slow networks, unreliable systems, and security issues usually come from poor infrastructure design rather than individual devices.

My approach focuses on understanding the entire system — network, services, authentication, backups and workflows — so that solutions remain stable and maintainable long-term.

I test most solutions first in my personal lab environment before recommending them for production use. Technology solutions should not be based on theory — by running and maintaining my own infrastructure, I gain real operational experience with the same systems that businesses rely on every day.


Real projects, real infrastructure.

A selection of systems designed and deployed — in the lab and for clients.

01

Identity Infrastructure Deployment

Design and deployment of centralized authentication using FreeIPA with integrated DNS, Kerberos, and an internal certificate authority for encrypted service communication.

FreeIPA Kerberos SSSD Internal CA LDAP
02

Proxmox Virtualization Cluster

Multi-node Proxmox cluster with ZFS storage, LXC containers for services, and KVM virtual machines for isolated workloads. High-availability configured.

Proxmox VE ZFS LXC KVM HA Cluster
03

Federated SSO with Zitadel + FreeIPA

Integration of Zitadel as an OIDC/OAuth2 identity provider backed by FreeIPA, enabling single sign-on across self-hosted services without cloud dependency.

Zitadel OIDC FreeIPA SSO
04

Segmented Network with OPNsense

VLAN-based network segmentation with OPNsense firewall, per-zone traffic policies, split-horizon DNS, and WireGuard VPN for remote access.

OPNsense VLAN WireGuard DNS Firewall

The person behind the terminal.

name
Endre (Endi)
location
Bucharest, Romania
role
IT Technician &
Infrastructure Consultant
focus areas
Linux Administration
Networking & Wi-Fi
Virtualization
Identity & Security

My name is Endre — but everyone calls me Endi. I've been working with technology since 2015, and I enjoy building systems that are reliable, understandable, and under the control of the people who use them.

Whether it's a home Wi-Fi issue or designing infrastructure for a technical business — I approach every problem with the same care and attention to detail.

Through EndreEndi Services, my goal is to provide practical and reliable IT help — from everyday support to infrastructure consulting. Good technology shouldn't require a corporate budget.

Outside of work, I run a dedicated lab environment where I design, break, and rebuild systems continuously. If you want to see what's inside it, the Lab section covers the full stack.

Systems

Linux & Windows

Networking

Routers, firewalls, VLANs

Virtualization

Proxmox, containers

Security

Identity systems, PKI

Automation

Ansible, scripting

Backup

Disaster recovery


Simple, transparent, effective.

01

You contact me

Describe your problem — by email, WhatsApp, or phone. No technical knowledge needed.

02

We identify the problem

I assess the situation, ask a few questions, and figure out what's going on.

03

I propose a solution

You get a clear, practical solution with an honest cost estimate. No surprises.

04

I fix it and document everything

I implement the solution, make sure it works, and leave you with clear documentation.


Need help with a technical problem?

Get in touch and I'll take a look. If I can't fix it, you don't pay.