Tallinn, Estonia

Rogert Hollo
Engineer in progress.

Product development and robotics student at TalTech. I build things that move, store energy or run hydrogen, and I like understanding them down to the weld, the cell and the packet.

SCROLL
2021 – 2024

Võru Gümnaasium

Võru, Estonia

Upper secondary school, alongside olympiads and engineering competitions, and about eight years of volleyball at Võru Spordikool. This is where the habit of building and competing started.

olympiadsengineering competitionsvolleyball
Jul 2024 – Jun 2025

Estonian Defence Forces

Kuperjanovi Infantry Battalion · IT specialist

Conscript service as an IT specialist: looked after Cisco and Extreme networking, radio equipment and workstations. Learned to keep communication working when it matters, with limited time and no excuses.

CiscoExtreme Networksradio equipmentworkstations
Studies NOW

TalTech

Product Development and Robotics (Tootearendus ja robootika)

Mechanical design, manufacturing and robotics in one degree. CAD in SolidWorks and Siemens NX, with a growing interest in composites, welding and SLS/SLM metal and polymer printing.

SolidWorksSiemens NXcompositesweldingSLS / SLM
Formula Student NOW

FS Tallinn / Tudengi Vormel

Tractive System Engineer

Responsible for the tractive system of the student formula car: accumulator design, battery segment housings and the adhesives that hold them together. High voltage, tight packaging, real competition rules.

accumulatorbattery housingsadhesiveselectric powertrain
Hydrogen NOW

TiVo

TalTech hydrogen organisation · member

Working on the HydroSave project and taking hydrogen to schools through workshops, plus an excursion to Finland to see the industry up close.

hydrogenHydroSaveschool workshops
Industry NOW

Rand Hydrogen OÜ

Mechanical side of a small development team

Part of the team building UPFuel_1.0, a mobile hydrogen plant. Mechanical design and hardware sourcing, with a side of IT: remote management access for the equipment.

UPFuel_1.0mobile hydrogen planthardware sourcingPCHE research
Side project NOW

The server behind this page

A Dell R710 in a TalTech lab

This site is not on a cloud platform. It runs in a container on my own Proxmox server, in a lab where I cannot touch the router, so it is published through a Tailscale tunnel instead of port forwarding.

hardware Dell R710 · 24 cores · 256 GB DDR3 · 12 TB HDD
hypervisor Proxmox VE (LXC containers)
this page Caddy in an LXC · served over Tailscale Funnel
also runs game servers, file services, automation for Claude
ProxmoxLXCTailscaleSambaself-hosting

What I work with

Mechanical

SolidWorks, Siemens NX, composites, welding, SLS/SLM printing, adhesives and structural bonding.

Energy

Hydrogen systems, battery packs and accumulators, electric powertrains, high-voltage safety.

Electronics & code

Embedded electronics, programming, automation and scripting.

Networks & infrastructure

Cisco and Extreme switching, radio links, Proxmox, Tailscale, self-hosted services.

Languages

Estonian

Native

English

C1 (Cambridge exam)

Russian

A1

Where this is going

Outside of engineering: choir, spray-paint art, woodworking, architecture and volleyball.