Joona Ehrnrooth
AeroLeads people directory · profile

Joona Ehrnrooth Email & Phone Number

Business Unit Manager at Rejlers Finland Oy at Rejlers
Location: Finland, Finland, Finland 9 work roles 3 schools
LinkedIn matched
✓ Verified May 2026 3 data sources Profile completeness 100%

Contact Signals

LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Rejlers
Role
Business Unit Manager at Rejlers Finland Oy
Location
Finland, Finland, Finland
Company size
1247 employees

Who is Joona Ehrnrooth? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

Joona Ehrnrooth is listed as Business Unit Manager at Rejlers Finland Oy at Rejlers, a company with 1247 employees, based in Finland, Finland, Finland. AeroLeads shows a matched LinkedIn profile for Joona Ehrnrooth.

Joona Ehrnrooth previously worked as Business Unit Manager at Rejlers and Service Manager at Rejlers Finland. Joona Ehrnrooth holds Master'S Degree, Industrial Engineering And Management from Lut University.

Company email context

Email format at Rejlers

This section adds company-level context without repeating Joona Ehrnrooth's masked contact details.

Rejlers

Review company-level records connected to Joona Ehrnrooth before choosing the right outreach path.

View email format View company profile Management contacts
Profile bio

About Joona Ehrnrooth

I'm curious, engineer-mindset owning musician who is interested in business development, technology, engineering and creating new ventures. I think it is important to develop yourself to stay high-spirited and updated. Life-time-learning, friendliness, creativity and never-ending-curiosity will help me to reach my life goals.

Listed skills include Business Strategy, Microsoft Office, Programming, Entrepreneurship, and 12 others.

Current workplace

Joona Ehrnrooth's current company

Company context helps verify the profile and gives searchers a useful next step.

Rejlers
Rejlers
Business Unit Manager at Rejlers Finland Oy
stockholm, stockholms lan, sweden
Website
rejlers.com
Employees
1247
AeroLeads page
Company profile
View company profile Email format
9 roles · 14 years

Joona Ehrnrooth work experience

A career timeline built from the work history available for this profile.

Business Unit Manager

Current
Rejlers

Mikkeli, South Savo, Finland

Jun 2024 - Present

Service Manager

Rejlers Finland

Mikkeli, Southern Savonia, Finland

- Sähkönjakeluverkot- Paikkatietoanalyysit- Latausjärjestelmät

Aug 2021 - Nov 2024

Specialist

Rejlers Finland Oy

Mikkeli, Eastern Finland, Finland

R&D project planning and management. Service development.

Jun 2020 - May 2022

Network Planning Engineer

Rejlers Finland Oy

Mikkeli

Designing high speed communication networks for the use of future smartgrid applications. Also some development task related on eMobility services.Main duty was taking care of different kind of tasks related on the use of fibre-optics in electricity distribution networks: - Fibre-optic network planning, documentation and reporting.- Making sure that plans.

Jun 2016 - Jun 2020

Co-Founder

Current
Noblecat Oy

Mikkeli Area, Finland

Noblecat provides e-learning materials and exercises for companies and educational institutions.

May 2018 - Present

Part-Time Entrepreneur/Independent Contractor

Vireles

Mikkeli Area, Finland

Jan 2015 - Dec 2016

Network Planning Engineer

Js-Verkot Oy

Mikkeli

Oct 2014 - May 2016

Supervisor (Summer Job)

Empower Group

Inkeroinen

May 2014 - Aug 2014

Summer Trainee

Järvi-Suomen Energia Oy

Mikkeli Area, Finland

2012 - 2014 ~2 yrs
Team & coworkers

Colleagues at Rejlers

Other employees you can reach at rejlers.com. View company contacts for 1247 employees →

JH Jarkko Hämäläinen Jarkko Hämäläinen Colleague at RejlersMikkeli, South Savo, Finland, Finland View → NK Niklas Köhler Niklas Köhler Colleague at RejlersÖstersund, Jämtland County, Sweden, Sweden View → RM Rickard M. Rickard M. Colleague at RejlersStockholm, Stockholm County, Sweden, Sweden View → DJ Diana Jeske Diana Jeske Colleague at RejlersSweden, Sweden View → JÖ John Öberg John Öberg Colleague at RejlersGreater Stockholm Metropolitan Area, Sweden View → DN Daniel Nilsson Daniel Nilsson Colleague at RejlersSweden, Sweden View → EE Ei Ei Aung Ei Ei Aung Colleague at RejlersSweden, Sweden View → SA Sulton Azamov Sulton Azamov Colleague at RejlersStockholm, Stockholm County, Sweden, Sweden View → SK Simon Kroon Simon Kroon Colleague at RejlersGreater Malmö Metropolitan Area, Sweden View → AM Aleksi Männistö Aleksi Männistö Colleague at RejlersTampere, Pirkanmaa, Finland, Finland View →
3 education records

Joona Ehrnrooth education

Master'S Degree, Industrial Engineering And Management

Lut University

Major: Entrepreneurship Minor: Electricity Distribution Networks and Markets Theory of entrepreneurship, business creation, development.

Electrical Engineering And Automation Technology, Competence Area In Electronics

South Savo Vocational College

In these studies, I learned more about programming microprocessors and computer programs. Studies also included practical exercises on.

FAQ

Frequently asked questions about Joona Ehrnrooth

Quick answers generated from the profile data available on this page.

What company does Joona Ehrnrooth work for?

Joona Ehrnrooth works for Rejlers.

What is Joona Ehrnrooth's role at Rejlers?

Joona Ehrnrooth is listed as Business Unit Manager at Rejlers Finland Oy at Rejlers.

Where is Joona Ehrnrooth based?

Joona Ehrnrooth is based in Finland, Finland, Finland while working with Rejlers.

What companies has Joona Ehrnrooth worked for?

Joona Ehrnrooth has worked for Rejlers, Rejlers Finland, Rejlers Finland Oy, Noblecat Oy, and Vireles.

Who are Joona Ehrnrooth's colleagues at Rejlers?

Joona Ehrnrooth's colleagues at Rejlers include Jarkko Hämäläinen, Niklas Köhler, Rickard M., Diana Jeske, and John Öberg.

How can I contact Joona Ehrnrooth?

You can use AeroLeads to view verified contact signals for Joona Ehrnrooth at Rejlers, including work email, phone, and LinkedIn data when available.

What schools did Joona Ehrnrooth attend?

Joona Ehrnrooth holds Master'S Degree, Industrial Engineering And Management from Lut University.

What skills is Joona Ehrnrooth known for?

Joona Ehrnrooth is listed with skills including Business Strategy, Microsoft Office, Programming, Entrepreneurship, Customer Satisfaction, Business Development, Microsoft Excel, and Electrical Engineering.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.