When software plays a critical role in your organization, you need solutions that work: secure, user-friendly, future-proof, and aligned with your processes and ambitions.
Off-the-shelf solutions often fall short, are hard to integrate, or come with high licensing costs.
That’s why we build custom software that’s both smart and responsible: scalable, open source, ISO-certified, and developed in Python. Giving you control over your tech, and room to grow.
What we’re good at
From strategy to scalable code, we’re right beside you. As your technical partner, we think along with you, build alongside you, and deliver solutions that work today and create value for the long term.
New development
From idea to impact
Thinking about a new platform or application? We translate your vision into a scalable, secure and user-friendly solution. Built with Python and Django, with a strong focus on performance, maintainability and user experience.
- Check out our workshop for new applications ›
Modernizing
Old software, new energy
Software that once worked well can start holding you back. We modernize legacy systems step by step, without disrupting your daily operations. We keep what works and improve what doesn’t.
Transforming
From business logic to smart software
Working with Excel sheets, manual processes or undocumented knowledge? We turn your work logic into scalable, maintainable software — with clear workflows and smart interfaces.
From closed to open
We migrate from proprietary software to flexible open source solutions. No expensive licenses or vendor lock-ins, just full control over your technology.
Integrating
Everything seamlessly connected
From data collection to automated analysis: we build AI and data-driven solutions that deliver real value. Smart integrations and automation make your platform more efficient and future-ready.
“ Our clients stay with us for an average of 9.2 years. Why? Because we think along, adapt with them, and help build solutions that truly work. ”
Tom Nij Bijvank
Why Python?
Python powers our software.
It’s the world’s most widely used open source programming language and the technical foundation of platforms like YouTube, Instagram and Pinterest. Python is secure, scalable, maintainable and free from vendor lock-ins.
With 18 years of experience in Python and Django, we know exactly how to use this technology to create sustainable solutions.
Read more about Python & Django ›
Python / Django experience
Our current customers/partners have been with us for (on average) 9.2 years
professional work experience developers
Our approach: strategic and practical
We don’t just write code — we help shape your organization.
Together, we define the smartest route: from strategic roadmap to working software.
We work agile, in phases, and transparently:
- Starting with a sharp analysis or workshop
- Building in short sprints, delivering results with every iteration
- Ensuring transferability and documentation
- Integrating wherever possible with existing systems
- Compliant with ISO 27001, with security and privacy by design
Discover how we work ›
Experience by the numbers
- 18 years of Python/Django experience
- 14.8 years average developer experience
- 216 clients helped since 2006
- 61 applications in production
- 9.2 years average client partnership duration
- ISO 27001 certified since 2018
Working with Leukeleu
We believe in long-term partnerships. Not just because it’s pleasant — but because that’s how you really make progress. We’re a partner, not a supplier. We think with you, push back when needed, and help build solutions that make sense — for you, your team, and your end users.
Ready to build the future together?
Let’s build together
Schedule a call with our team to explore what we can do for your organization.