ICT · Networking · Onsite Support · Cybersecurity

Lassi Niitlahti

ICT Specialist — Maker and a Doer

Networking and onsite IT specialist who likes being the one who actually gets it done.

13+ Years in ICT & field engineering
4.6 GPA · LAB University
2024—2028 BE in ICT
Lassi Niitlahti
Lassi Niitlahti signature

About Me

I'm Lassi — an ICT Specialist based in Tampere, Finland, working at Elmo. My job is hard to sum up in a single sentence, and that's exactly what makes it interesting. One day I'm mounting a 100-inch display on a wall, the next I'm planning a wireless network deployment across a multi-floor office, and the day after that I'm onsite helping people through a Microsoft tenant migration — moving PCs and laptops from one environment to another, and being the person they can actually talk to while everything changes around them.

I've been working in ICT for over 13 years. I started out installing point-of-sale systems, moved through helpdesk and field engineering, and gradually found my way to where I am now: networking and onsite IT, which is where I focus today.

Networking is my main focus — switches, routers, fiber, and wireless. Just as much of my work is hands-on and onsite: being the person who's physically there to make sure things actually get done. I especially enjoy finding ways to automate the repetitive parts — the kind of upfront work that saves everyone time down the line.

These days I'm learning the modern Microsoft side — Autopilot, Intune, and the endpoint world. I can handle the everyday tasks and find my way around, but I'm honest about where I'm at: security policies, group management, and how all the pieces fit together is something I'm still growing into. I'd rather ask, learn, and get it right than pretend I already know.

Outside of work, I'm a maker and doer at heart — always with some project on the go. I run a homelab that I'm constantly fiddling with; it's even capable of hosting game servers when friends need one. AI tools are a big part of how I work and tinker: I use Claude, Copilot, Gemini, and NotebookLM day to day, and I've also run models locally on my own machine — LM Studio with Nemotron and DeepSeek, and image generation through Automatic1111 and ComfyUI. I'm comfortable with these tools, and just as mindful of the security and privacy questions that come with them.

I've played Counter-Strike 2 competitively in Finnish leagues — both Kanaliiga and Pappaliiga (the 30-and-over league), at one point juggling two teams in different leagues at once. I also stream on Twitch now and then when time allows.

Away from screens, I like making and fixing physical things — car sound system installs, metalworking, woodworking, and mechanical repair, with 3D printing next on my list. I've also been hitting the gym regularly (bench press is the favorite, even if I'm still working on the numbers), and come May I'm glued to the Ice Hockey World Championship.

I learn best by doing. I'm confident in what I know, honest about what I don't, and always looking for the next thing to figure out.

My Journey

ITIL 4 Foundation Certified

Jan 2026

Earned the ITIL® 4 Foundation Certificate in IT Service Management (PeopleCert), broadening expertise from infrastructure into service management.

Cisco Introduction to IoT

Oct 2025

Completed Cisco's Introduction to IoT, exploring connected devices and the networks that support them.

Fortinet Certified Associate

Oct 2024

Achieved Fortinet Certified Associate in Cybersecurity, deepening network security expertise.

Started Engineering Studies

Jul 2024

Began Bachelor of Engineering in ICT at LAB University (4.6 GPA, 135/240 ECTS completed) while working full-time.

Fortinet Certified Fundamentals

Dec 2022

Earned Fortinet Certified Fundamentals in Cybersecurity, the first step into formal network security certification.

Joined Elmo as ICT Specialist

Oct 2022 — Present

Moved into enterprise networking — fiber optic installations, firewall deployments, WiFi planning, and AV solutions across the Tampere region.

Uusi Esimies Leadership Program

Dec 2020 — Mar 2021

Completed the Uusi Esimies (New Supervisor) leadership program at Rastor-instituutti, building team management and supervisory skills.

Promoted to Team Leader

Jul 2019 — Aug 2022

Became Field Engineer Team Leader at ACRELEC — managed the daily operations of a team of field engineers, handling coordination, planning, and supervisory responsibilities (esimiestyötä).

Field Engineer at ACRELEC

2016 — 2019

Progressed from helpdesk to Field Engineer, handling on-site installations, hardware support, and remote troubleshooting of POS and kiosk systems.

Military Service — Combat Signaller

Jan 2014 — Jun 2014

Served as a Combat Signaller in the Finnish Defence Forces (Riihimäki), operating field communications and heavy equipment while building discipline and teamwork.

Started ICT Career

2013

Joined ACRELEC as a POS systems installer — the start of my ICT career — later moving into helpdesk and field engineering while completing an IT Further Qualification apprenticeship through Koulutuskeskus Salpaus.

Postal Worker

Dec 2012

Short seasonal stint as a postal worker at Posti in Hollola.

IT Intern — City of Lahti

Aug 2012 — Oct 2012

Installed and assembled computers across Lahti's primary and secondary schools, preinstalled operating systems and software, routed communication cabling, and configured switches port-by-port — early hands-on networking experience.

Industrial Engineering Intern

Feb 2012 — Apr 2012

Worked on bus rear electrification at Lahden Autokori Oy — immobilizer and lighting installation, reversing camera and buzzer wiring, and NATO plug fitting.

ICT Technician Qualification

2010 — 2013

Completed vocational studies in Information and Communications Technology at Koulutuskeskus Salpaus, earning the ICT Technician qualification.

Skills & Expertise

Core Competencies

Network Administration

Advanced

Fiber Optics

Advanced

IT Hardware Support

Advanced

Technical Skills

Linux Administration

Intermediate

Network Security

Intermediate

Python

Intermediate

Currently Learning

Advanced Networking Protocols
Cloud Infrastructure & Services
Network Automation & Scripting

Experience

Work Experience

ICT Specialist

Elmo

Oct 2022 - Present · 3 yrs 3 mos

Providing enterprise network solutions for businesses across Tampere region. Daily responsibilities include fiber optic installations and measurements, SFP module configuration, firewall deployments, wifi network planning and implementation, and AV solutions including digital signage systems. Work involves onsite technical support, connecting to property switches, ensuring optimal data transmission, and troubleshooting network infrastructure issues.

Fiber Optics Network Infrastructure SFP Modules Traceroute Technical Documentation

Field Engineer Team Leader

ACRELEC

Jul 2019 - Aug 2022 · 3 yrs 2 mos

Led field engineering team supporting restaurant industry POS systems and equipment. Managed operations, technical documentation, and customer communications.

POS Systems IT Operations Service Management 3D Modeling Autodesk Fusion 360

Combat Signaller — Military Service

Puolustusvoimat · Finnish Defence Forces

Jan 2014 - Jun 2014 · 6 mos · Riihimäki

Completed mandatory national service as a Combat Signaller in Riihimäki, operating field communications and heavy equipment while building discipline, cooperation, and composure under pressure.

Cooperation Heavy Equipment Field Communications

System Specialist

ACRELEC

2013 - Jun 2019 · 6 yrs

Began my ICT career in 2013 as a POS systems installer, then moved into Helpdesk/Field Engineer (2014-2016) and Field Engineer (2016-2019). Provided hardware support, remote troubleshooting, and on-site installations.

POS Installation Remote Support Helpdesk Hardware Troubleshooting Kiosk Systems

Education

Bachelor of Engineering

LAB University of Applied Sciences

Jul 2024 - Jul 2028

Information and Communications Technology. Currently pursuing BE degree while working full-time. GPA: 4.6/5 (as of 29.5.2026). Completed 135/240 ECTS (~2 years of studies). Focus on networking, cybersecurity, and technical communication. Balancing full-time work with academic excellence.

Uusi Esimies — Leadership Training

Rastor-instituutti

Dec 2020 - Mar 2021

New Supervisor leadership program, building team management and supervisory skills alongside the transition into a Field Engineer Team Leader role.

Further Qualification

Koulutuskeskus Salpaus

2014 - 2016

Information Technology. 2-year apprenticeship program at ACRELEC Finland Oy.

Vocational School

Koulutuskeskus Salpaus

2010 - 2013

Information and Communications Technology. ICT Technician qualification.

Projects & Portfolio

Homelab — TrueNAS tower, server rack and storage visualisation TrueNAS · Homelab

Homelab Network Infrastructure

Personal homelab environment for networking experiments, virtualization, and hands-on learning. Running multiple VMs, network services, and test environments for exploring new technologies and practicing enterprise-level configurations in a controlled setting. Storage and services are built on a TrueNAS box handling NAS duties, backups, and self-hosted apps.

Proxmox TrueNAS Networking Virtualization Linux
Tactical Ascend CS2 Fragmovie Part 1 Tactical Ascend · CS2

Counter-Strike 2 Fragmovies

"Tactical Ascend" — a two-part CS2 fragmovie series edited in 1440p / 60 fps. In-game footage captured with HLAE, cut and graded in Sony Vegas Pro, motion graphics built in Adobe After Effects, and an original soundtrack generated with Suno AI. Published on my YouTube channel Inffi.

HLAE Sony Vegas Pro After Effects Suno AI
Twitch POV Streams

Twitch Streaming

Live POV streams on Twitch — mostly Counter-Strike 2, broadcasting my own gameplay during matches and casual sessions.

Twitch Live POV CS2 Streaming

My Sites

Certifications

Fortinet Certified Associate Cybersecurity badge

Fortinet Certified Associate Cybersecurity

Fortinet

Obtained: Oct 2024 · Expires: Oct 2026
Cisco Introduction to IoT badge

Introduction to IoT

Cisco

Obtained: Oct 2025
Fortinet Certified Fundamentals Cybersecurity badge

Fortinet Certified Fundamentals Cybersecurity

Fortinet

Obtained: Dec 2022 · Expires: Oct 2026
EF SET logo

EFSET EXPRESS High Proficiency (CEFR C1/C2)

EF

English Proficiency Certification
ITIL 4 Foundation badge

ITIL® 4 Foundation Certificate in IT Service Management

PeopleCert

Obtained: Jan 2026 · Expires: Jan 2029 Credential ID: GR671851004LN

Hobbies & Interests

Counter-Strike 2

Competitive and casual PC gaming — mainly Counter-Strike 2 on Steam, plus exploring new titles.

Steam FPS

Streaming

Live POV streams on Twitch — mostly Counter-Strike 2, broadcasting my own gameplay.

Twitch Live POV

Ice Hockey

Following ice hockey — keeping up with the games and the leagues.

Formula 1

Keen Formula 1 follower — tuned in across the race weekends.

Homelab

Tinkering with my homelab — virtualization, networking, and self-hosted services.

Game Development

Building games in Unity in my spare time — see "Mow or Never" in Projects.

Gym

Strength training and staying active at the gym.

Get In Touch

The best way to reach me is through a LinkedIn connection. For anything else, email works too.