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33,000+ live jobsCommercial Technical Manager
On-site in Diemen·Full-time·Added 22 days ago (last checked 26 Oct)
665 open roles
Our summary
- Work mode
- On-site, Diemen
- Contract
- Permanent, full-time hours
- Languages
- Dutch



Skills
This job advert was originally written in Dutch.
Pay & benefits
What you'll get
A good salary in which your knowledge and experience will certainly be appreciated.
Laptop, phone, lease car, and company fuel card
Employment conditions and pension according to CAO Metaal & Techniek (Technical installations)
25 vacation days and 13 ADV days for full-time employment
Annual contract with a view to permanent employment
Training and development opportunities via the Koomen Installatie de VDK Academy
Access to benefits via the VDK app with discounts on insurance, fuel, attractions, corporate benefits, and much more!
Inspiring team outings, Friday afternoon drinks, and annual VDK family parties such as Phantasialand!
The role
For the expansion of our enthusiastic and driven teams, we are looking for a commercial manager with a technical background. In this role, you are responsible for recognizing and winning commercial opportunities in installation technology. Our focus lies on customers with buildings in commercial utility.
As Technical commercial manager you are the central point of contact for our customers. You ensure the acquisition of new customers/assignments and/or the renewal of existing contracts. Additionally, you advise new and existing customers on technical installations and translate their needs into concrete solutions.
You work at a tactical and strategic level and regularly interface with customers, project leaders, and management.
What you'll do
Inventorying and analyzing customer needs and translating these into technical solutions
Providing support in drafting and following up on quotes and estimates
Actively securing new projects and maintenance contracts
Maintaining and expanding contact with new and existing customers
Ensuring internal coordination with projects and our service & maintenance department
Monitoring project opportunities, turnover, and margins
What you bring
HBO (Higher Professional Education) working and thinking level (preferably in a technical direction)
Experience within installation technology or a comparable industry
Strong communication skills
Commercial insight and result-orientedness
Organizationally strong and able to switch gears quickly
In possession of VCA-VOL (or willing to obtain it)
Hiring process
Are you interested?
Please call or WhatsApp Nadine Verhage
Recruitment Business Partner
Phone: 06-44871851
Email: n.verhage@vdkgroep.com
#VDKGROEPManagementStaff
About VDK Groep B.V.
In their own words
About the company & team
Since 1914, Koomen Installatie has provided reliable technical solutions. We are down-to-earth, accessible, and personal. Everyone knows each other, lines of communication are short, and collaboration is central. Our focus is always on quality and service, and we prevent problems with preventive maintenance. We deliver custom solutions for residential construction and commercial real estate. In the event of malfunctions, we ensure quick solutions.
Our company is part of the fast-growing VDK Group, but operates with its own identity and culture. You will feel at home at Koomen Installatie, while being able to build on the strength of the VDK Group. This means: extra benefits such as stability, plenty of training opportunities, growth opportunities, and many extra secondary employment conditions! As of mid-April 2026, the VDK Group consists of about 180 companies and over 7,000 employees, operating in 6 European countries.
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