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Kostiantyn Sosnowski Email & Phone Number
Head of Business Development
at
RTB House
1 work email found
@rtbhouse.com
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Head of Business Development
Location
Warsaw, Mazowieckie, Poland
Company size
Who is Kostiantyn Sosnowski? Overview
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Quick answer
Kostiantyn Sosnowski is listed as Head of Business Development at RTB House, a company with 1383 employees, based in Warsaw, Mazowieckie, Poland. AeroLeads shows a work email signal at rtbhouse.com and a matched LinkedIn profile for Kostiantyn Sosnowski.
Kostiantyn Sosnowski previously worked as Strategic Projects at Rtb House and Head of New Business Development, Japan & Korea at Rtb House. Kostiantyn Sosnowski holds Ba, Summa Cum Laude from Kyiv National Taras Shevchenko University.
Company email context
Email format at RTB House
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{first}.{last}@rtbhouse.com
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AeroLeads found 1 current-domain work email signal for Kostiantyn Sosnowski. Compare company email patterns before reaching out.
Profile bio
About Kostiantyn Sosnowski
♦ Technology and innovation enthusiast♦ Focused on performance - I measure success by impact, not activities♦ Passionate (even obsessive) about productivity and profitability♦ Background in Finance helps to define on what really creates valueCURRENTLYSteering new business development in Japan and South Korea for RTB House, a PE-owned AdTech company.PREVIOUSLYI was leading the Account Management team in DACH and was involved in various strategic projects focused on the development on the DACH and Benelux markets at RTB House. I also have hands-on experience in post-merger integration and transformation management at Diebold Nixdorf, a $4+ billion company, where I successfully delivered multiple initiatives to improve operational efficiency. I have a strong background in finance, which enables me to provide strategic financial insights and guidance to support business decisions.
Listed skills include Management Consulting, Financial Modeling, Finance, Restructuring, and 3 others.
Current workplace
Kostiantyn Sosnowski's current company
Company context helps verify the profile and gives searchers a useful next step.
Rtb House
11 roles
Kostiantyn Sosnowski work experience
A career timeline built from the work history available for this profile.
Strategic Projects
CurrentWorking over the important projects (full-time assignments, last on top):- Value creation, boosting new business in Japan & Korea- Growing existing business in DACH, with focus on profitability- Development of the DACH & BNX organisations
Oct 2019 - Present
Head Of New Business Development, Japan & Korea
Current
Apr 2024 - Present
Head Of Account Management Dach
Taking care of the existing business of 100+ clients. Managing the German Account Management team of 12.Key achievement: refocusing the team towards profitability.YoY growth of relevant portfolio: Revenue +17%, Profit +29%.
May 2023 - Mar 2024
Project Manager, Dach & Benelux
Managing the matters that did not work well without my involvement.- Business planning- Revenue management- New products launch
Oct 2019 - Apr 2023
Hq Functions: Project Manager, Post-Merger Integration And Transformation Office
Roles (the last on top):- Project Manager, Transformation Office- Project Manager, Post-Merger Integration & Transformation- Senior Internal Auditor- Project Manager, Supply Chain RestructuringTransformation OfficeCorporate restructuring programme (cost cutting) with 9-digit $ value, focus on procurementsPost-Merger IntegrationMaking sure that synergies.
Oct 2014 - Sep 2019
Regional Function: Business Controller
May 2013 - Sep 2014
Interim Finance Director, Agriculture Business
A medium-sized agricultural business by the Ukrainian gauge: 25,000+ hectares and 3,500+ diary cows.
Feb 2013 - Apr 2013
Finance Controller, Hq Cee Region
Nov 2011 - Nov 2012
Management Consulting
Roles (the last on top):- Senior Consultant / Manager, management Consulting- Senior Auditor
Sep 2005 - Oct 2011
Business Analyst
Ukrainian Industrial Bank (Ukrprombank)
Aug 2004 - Aug 2005
Team & coworkers
Colleagues at RTB House
Other employees you can reach at rtbhouse.com. View company contacts for 1383 employees →
HD
Hugo Durkheim
Colleague at Rtb House
Paris, Île-de-France, France, France
View →
IA
Igor Arsen
Colleague at Rtb House
San Gwann, Malta, Malta
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LS
Luca Sculley
Colleague at Rtb House
United Kingdom, United Kingdom
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NA
Naji Abboud
Colleague at Rtb House
Dubai, United Arab Emirates, United Arab Emirates
View →
MP
Michał Podrucki
Colleague at Rtb House
Warsaw, Mazowieckie, Poland, Poland
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MG
Mikołaj Grzywacz
Colleague at Rtb House
Warsaw, Mazowieckie, Poland, Poland
View →
AM
Arnaud Martin
Colleague at Rtb House
Nantes, Pays De LA Loire, France, France
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AK
Anna Kacprzak
Colleague at Rtb House
Warsaw, Mazowieckie, Poland, Poland
View →
SL
Suk-Kyu Lee
Colleague at Rtb House
Seoul Incheon Metropolitan Area, Korea, Republic Of
View →
LY
Lovlesh Yadav
Colleague at Rtb House
South Delhi, Delhi, India, India
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Hugo Durkheim
Colleague at Rtb House
Paris, Île-de-France, France, France
View →
IA
Igor Arsen
Colleague at Rtb House
San Gwann, Malta, Malta
View →
LS
Luca Sculley
Colleague at Rtb House
United Kingdom, United Kingdom
View →
NA
Naji Abboud
Colleague at Rtb House
Dubai, United Arab Emirates, United Arab Emirates
View →
MP
Michał Podrucki
Colleague at Rtb House
Warsaw, Mazowieckie, Poland, Poland
View →
MG
Mikołaj Grzywacz
Colleague at Rtb House
Warsaw, Mazowieckie, Poland, Poland
View →
AM
Arnaud Martin
Colleague at Rtb House
Nantes, Pays De LA Loire, France, France
View →
AK
Anna Kacprzak
Colleague at Rtb House
Warsaw, Mazowieckie, Poland, Poland
View →
SL
Suk-Kyu Lee
Colleague at Rtb House
Seoul Incheon Metropolitan Area, Korea, Republic Of
View →
LY
Lovlesh Yadav
Colleague at Rtb House
South Delhi, Delhi, India, India
View →
3 education records
Kostiantyn Sosnowski education
Ba, Summa Cum Laude
Acca Charterholder, Fcca, Financial Management
FAQ
Frequently asked questions about Kostiantyn Sosnowski
Quick answers generated from the profile data available on this page.
What company does Kostiantyn Sosnowski work for?
Kostiantyn Sosnowski works for RTB House.
What is Kostiantyn Sosnowski's role at RTB House?
Kostiantyn Sosnowski is listed as Head of Business Development at RTB House.
What is Kostiantyn Sosnowski's email address?
AeroLeads has found 1 work email signal at @rtbhouse.com for Kostiantyn Sosnowski at RTB House.
Where is Kostiantyn Sosnowski based?
Kostiantyn Sosnowski is based in Warsaw, Mazowieckie, Poland while working with RTB House.
What companies has Kostiantyn Sosnowski worked for?
Kostiantyn Sosnowski has worked for Rtb House, Diebold Nixdorf, Milkiland, Crh, and Ey.
Who are Kostiantyn Sosnowski's colleagues at RTB House?
Kostiantyn Sosnowski's colleagues at RTB House include Hugo Durkheim, Igor Arsen, Luca Sculley, Naji Abboud, and Michał Podrucki.
How can I contact Kostiantyn Sosnowski?
You can use AeroLeads to view verified contact signals for Kostiantyn Sosnowski at RTB House, including work email, phone, and LinkedIn data when available.
What schools did Kostiantyn Sosnowski attend?
Kostiantyn Sosnowski holds Ba, Summa Cum Laude from Kyiv National Taras Shevchenko University.
What skills is Kostiantyn Sosnowski known for?
Kostiantyn Sosnowski is listed with skills including Management Consulting, Financial Modeling, Finance, Restructuring, Business Process Re Engineering, Financial Planning, and Post Merger Integration.
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