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++Our story

Built on experience, not on an idea.

tre plus connects Dutch product teams with developers from Kosovo. Through Developer as a Service and Team as a Service, we show that a great team doesn't need the same building. Just the same mindset.

tre plus team at work

++Meet the team

The people behind tre plus.

A small, senior team that combines Dutch business culture with developers from Kosovo.

Rens Gerritsen

Rens Gerritsen

Oprichter ยท CPO

Product & Software

I build and scale product teams, with a strong focus on ownership, collaboration and long-term value.

Artan Djemajlji

Artan Djemajlji

CCO

Operations & team management

Responsible for day-to-day operations and team management, with focus on structure and a workplace where teams can grow.

++Our journey

From experience to our own company.

  1. Late 2022

    First working day in Kosovo

    In the role I held at the time, I start working on building a development organisation in Kosovo.

  2. 2022-2025

    From a first team to almost 70 FTE

    I help the organisation grow towards almost 70 people. Along the way I learn what selection, onboarding, local support and client integration really take.

  3. The lessons

    What works and what doesn't

    Developers have to become part of the client's team. Clients have to make the choice themselves. And technical direction has to stay with the client.

  4. July 2025

    tre plus starts

    I start tre plus to put those lessons into a smaller, more personal model for product companies in the Netherlands and Belgium.

  5. Today

    Our own office in Pristina

    Since April 2026 we recruit and support developers from our own office. Clients talk to me directly and lead the developers inside their own product team.

++What drives us

Our core values.

Ownership

We don't just deliver code. We think along and take responsibility for the result.

Transparency

Open communication, honest timelines, no surprises later on.

Continuity

We build long-term teams, not project-based setups with changing faces.

Quality

Senior developers only. We don't cut corners on talent.

Ownership, not a ticket queue

Our people think along with your product, not just the next task on the list.

Flexible capacity

A fixed monthly fee, no employer overhead. The collaboration should be the reason to stay, not the contract.

We handle continuity

Someone drops out? We arrange a replacement with comparable experience.

++Questions about tre plus

Frequently asked questions about our story

Where is tre plus based?
tre plus is Dutch-led, with an office in Pristina, Kosovo. The management team works from the Netherlands, and developers work from a professional office in Kosovo's capital.
How does tre plus select its developers?
Every developer goes through technical assessments, an English proficiency check and a conversation about team fit. We only work with senior developers with at least four years of experience.
What makes tre plus different from other nearshore partners?
We're a boutique partner, not a large agency. That means personal attention, hand-picked developers and direct contact with me. You always know who you're talking to.

Curious how our story could help your team?

I'm happy to think along with you. A 30-minute call, no strings attached.

Rens, Founder of tre plus

RensFounder of tre plus