Business Unit Manager
Current
Jun 2024 - Present
AeroLeads people directory · profile
Joona Ehrnrooth Email & Phone Number
Business Unit Manager
at
Rejlers
LinkedIn matched
✓ Verified July 2026
3 data sources
Profile completeness 100%
Who is Joona Ehrnrooth? Overview
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Quick answer
Joona Ehrnrooth is listed as Business Unit Manager at Rejlers, a with 1247 employees, based in Finland. AeroLeads shows a matched LinkedIn profile for Joona Ehrnrooth.
Joona Ehrnrooth previously worked as Service Manager at Rejlers Finland and Specialist at Rejlers Finland Oy. Joona Ehrnrooth holds Master'S Degree, Industrial Engineering And Management from Lut University.
Company email context
Email format at Rejlers
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Rejlers
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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
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Rejlers
9 roles · 15 years
Joona Ehrnrooth work experience
A career timeline built from the work history available for this profile.
Aug 2021 - Nov 2024
Jun 2020 - May 2022
Network Planning Engineer
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 and documentation are done in time.- Development of documentation and planning methods.Few tasks related to electricity distribution networks:- Network planning and documentation tasks (project sizes ~1M€).
Jun 2016 - Jun 2020
Co-Founder
Noblecat Oy
Noblecat provides e-learning materials and exercises for companies and educational institutions.
Part-Time Entrepreneur/Independent Contractor
Vireles
Jan 2015 - Dec 2016
Network Planning Engineer
Js-Verkot Oy
Oct 2014 - May 2016
Supervisor (Summer Job)
May 2014 - Aug 2014
Summer Trainee
Järvi-Suomen Energia Oy
2012 - 2014
~2 yrs
Team & coworkers
Colleagues at Rejlers
Other employees you can reach at rejlers.com. View company contacts for 1247 employees →
OJ
Ole Jensen
Colleague at RejlersVäxjö, Kronoberg County, Sweden
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EV
Elli Välimäki
Colleague at RejlersHelsinki, Uusimaa, Finland
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PW
Pelagia Wolff
Colleague at RejlersHelsinki, Uusimaa, Finland
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MD
Magnus Davidsson
Colleague at RejlersHammarö Kommun, Värmland County, Sweden
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MK
Mohamed Karim
Colleague at RejlersGreater Västerås Metropolitan Area, Sweden
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JS
Jarmo Sinkkonen
Colleague at RejlersLaukaa, Central Finland, Finland
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KH
Kristina Hasslevall
Colleague at RejlersVärmland County, Sweden
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RC
Roger Cederlöf
Colleague at RejlersStockholm County, Sweden
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ER
Espen Ramse Knudsen
Colleague at RejlersKristiansand Region, Norway
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AP
Antti Pänkäläinen
Colleague at RejlersFinland
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Ole Jensen
Colleague at RejlersVäxjö, Kronoberg County, Sweden
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EV
Elli Välimäki
Colleague at RejlersHelsinki, Uusimaa, Finland
View →
PW
Pelagia Wolff
Colleague at RejlersHelsinki, Uusimaa, Finland
View →
MD
Magnus Davidsson
Colleague at RejlersHammarö Kommun, Värmland County, Sweden
View →
MK
Mohamed Karim
Colleague at RejlersGreater Västerås Metropolitan Area, Sweden
View →
JS
Jarmo Sinkkonen
Colleague at RejlersLaukaa, Central Finland, Finland
View →
KH
Kristina Hasslevall
Colleague at RejlersVärmland County, Sweden
View →
RC
Roger Cederlöf
Colleague at RejlersStockholm County, Sweden
View →
ER
Espen Ramse Knudsen
Colleague at RejlersKristiansand Region, Norway
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AP
Antti Pänkäläinen
Colleague at RejlersFinland
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3 education records
Joona Ehrnrooth education
Master'S Degree, Industrial Engineering And Management
Bachelor Of Engineering (Beng), Electrical Engineering
Electrical Engineering And Automation Technology, Competence Area In Electronics
South Savo Vocational College
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.
Where is Joona Ehrnrooth based?
Joona Ehrnrooth is based in 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 Ole Jensen, Elli Välimäki, Pelagia Wolff, Magnus Davidsson, and Mohamed Karim.
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.
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