
Custom Software
for the Mittelstand.
Modernize your industrial and specialized software — from scheduling to production control to shift planning. Senior engineering from Saarbrücken, clean architecture from security to performance.
Speedboat, not tanker. For the Mittelstand.
We are small — and that's exactly why we are extremely performant and fast. On the third meeting, you won't face a third person. At vensas, senior developers work directly with you on the concept and code. No sales that sell promises the technology can't keep. Bootstrapped, without VC pressure, with values we stick to even when it's uncomfortable.
Senior Team from Saarbrücken
Experienced developers instead of junior model. No offshoring, personal responsibility.
Security & Performance
Secure architecture and clean performance aren't add-ons, they're fundamental principles.
Honest Words Instead of Pitch
"We shouldn't do it that way because..." — we say what we think. Even when uncomfortable.
Services
What we can do for you
Software Development – Web, Mobile & Backend
Whether web app, business backend, or mobile application – we develop your software solution exactly to your needs. Our experienced development team handles complete feature implementations or strengthens your existing development team.
Code Review – Quality, Maintainability & Best Practices
Do you want to ensure that your software remains stable, performant, and maintainable in the long term? With our code review package, you receive a well-founded assessment of your codebase – clear, structured, and with actionable recommendations. Our team analyzes source code, architecture, tests, and project structure. The focus is on improvement opportunities in quality, maintainability, security, development productivity, and reducing technical debt.
Software Architecture – Structured. Scalable. Future-proof.
A solid architecture is the foundation of every successful software. We design, analyze, and support software architectures – purposefully, technology-agnostic, and with a focus on scalability, maintainability, and team productivity. Whether greenfield or grown codebase: We help create clarity and structure.
Due Diligence – Technical Assessment of Software & Teams
We support investors and decision-makers in the technical evaluation of software products, architectures, and development teams. Our analyses provide clarity about strengths, risks, and sustainable investment worthiness.
Training – Building Knowledge & Anchoring Best Practices
We provide practical knowledge about software development, testing, and modern best practices. Whether as a one-time session or recurring format – we make your teams fit for future-proof software development.
DevOps & Cloud – Automation, Scaling & Operations
Modern software development requires reliable infrastructure and automated deployment processes. We support you in optimizing your CI/CD pipelines, cloud migration, and setting up scalable infrastructures. From containerization and Kubernetes orchestration to Infrastructure-as-Code – we create the foundation for efficient and secure software delivery.
Types of Implementation
Three Paths to Your Software
New Build
Clearly constructed, without legacy — from blank slate to productive solution. Tailored to your processes, your data and your IT landscape.
Modernization
Make existing systems maintainable, secure and cloud-capable. Renew old architecture piece by piece — without big bang and without operational downtime.
Migration
Cleanly transfer data and functions from A to B — structured, complete, without data loss. Even with complex legacy systems.
Working with vensas
Five Efficient Stages
We work with a five-stage process that has one goal: maximum efficiency, early clarity, no development past the customer.
Project Discussion
45 minutes needs analysis. You receive an honest assessment of whether we're the right partner for your project.
Output: Decision for collaboration
Solution Workshop
120 minutes with all relevant people. Together we define in detail what your solution needs — and what it doesn't.
Output: Written concept
Draft Solution
A first runnable version — not yet productive. You get a feel for our work and validate the concept internally.
Output: Presentable version
Go-Live
First productively usable version goes live. Start small, validate early. You have working software in production.
Output: Production software
Enhancement
Feature packages to mature solution. Visible progress in every sprint, weekly jour-fixe and long-term partnership.
Output: New features + operation
Let's talk about your most expensive process.
45 minutes initial meeting. You receive an honest assessment of your project — no sales pitch, no presentation.
Briefly describe your project — we'll get back to you within 24 hours.
Frequently Asked Questions
Before you ask
We are deliberately small and that's exactly why we're fast. With us, projects don't disappear in coordination loops, internal hierarchies or account management structures. On the third meeting, you won't face the third new person, but the same people who design and build your project.
We are bootstrapped, without investor logic in the background. That means: we don't make decisions for growth on paper, but for the best result in your project.
And above all: we get to doing things faster. Instead of months of concept phases, we deliver an early tangible solution.
With a simple question: What is your most expensive process?
This way we start the project discussion not with features, but with the actual problem. In the subsequent two-hour solution workshop, we then develop a concrete requirements list.
Faster than most expect. Concept and first draft solution are usually achievable in 3-4 weeks. The productive go-live in typical projects occurs within 2 to 3 months.
For larger modernizations, we don't deliver results only after half a year, but in clear packages with weekly alignments.
With technologies that will still be viable in five years.
Our core stack is .NET, .NET MAUI for mobile and cloud-native development on Azure. Add modern DevOps processes, automation and a clear engineering approach: reproducible, maintainable, clean.
Not every legacy software belongs in the trash.
We don't tear down what works. Instead, we analyze existing systems, isolate critical components and modernize step by step without endangering your daily business.
Almost. Technically we always find a way. But we're not the agency that nods to everything. If an idea is technically unsound, security-critical or expensive in the long term, we say so clearly.
A sentence you might hear from us: "We can build it that way. But we wouldn't recommend it."
Latest
What's currently on our mind
From the Blog
Engineering topics for decision makers

.NET
Modern .NET Development: Building Scalable Solutions
From .NET 1.0 to Semantic Kernel, vensas is your software development team and implementation partner for robust .NET applications.

Requirements Engineering
Requirements Engineering 2026: AI, SMEs, and the End of Knowledge Monopolies
AI writes your user stories now? Maybe. But it doesn't solve your biggest problem: knowledge trapped in the heads of individual employees. Especially in SMEs.
All posts →Upcoming Events
Where you can meet us
vensas
Local LLMs & .NET: Process Automation Under the Hood
Session by Sven Hennessen at .NET Saar Connect Meetup on local LLMs and process automation with .NET.
m:con Congress Center Rosengarten
.NET Aspire in Practice: From Local Development to Deployment
Session by Sven Hennessen at DWX 2026 covering .NET Aspire.
Halle4 - Coworking Space + Innovation Hub
SaarSoftwareCamp 2026
Open, participatory event focused on software development and testing with sessions and networking in Saarbrücken.
We're looking for reinforcement
Open position at vensas
Open position
Working Student in Marketing (m/f/d)
We are looking for a creative working student for up to 8 hours per week to support us with content marketing, social media, and brand development.
Years of engineering experience in the team
End users on productive applications
Years working for our major customers
Customer satisfaction







