Individuelle Softwareentwicklung Köln

Individual Software for complex tasks

SIDESTREAM develops holistic products
that fit your company

Contact Us!
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What our customers say

"The modern development approach of SIDESTREAM made me curious. I was convinced by the confident communication with the many stakeholders in the research center and the flexible handling of varying requirements in the course of the project. SIDESTREAM's software meets our scientific standards and makes our everyday research work much easier."

Dr. Stephan Küppers - Institute Manager, Research Center Jülich
Stephan Küppers

"As a development manager, I can confirm that SIDESTREAM provides me with excellent technical support. The team has a forward-looking way of working and communicating. It addresses emerging problems and possible solutions at an early stage. The fact that they also take care of the maintenance and further development of the delivered products beyond the initial development completely rounds off the image of a reliable partner for me."

Martin Schuh - Development Manager, DuMont Business Information Tech GmbH
Martin Schuh

"SIDESTREAM developed a concept for us to map an existing Excel-based process in a modern web application. For this purpose, a concept sprint was carried out with the inclusion of all departments involved in the process. This approach was decisive for a high acceptance of the new process. The team's way of working is very pleasant and goal-oriented."

Ulf Morys - Finance Director Germany, Ubisoft
Ulf Morys

"Working with SIDESTREAM is really fun. Ideas are implemented quickly, communication is straightforward and the modern development approach ensures high quality and speed. With Proprate, we have jointly developed an innovative product and I look forward to further collaboration."

Sebastian Staats - Executive Technical Director, Cheil
Sebeastian Staats

"SIDESTREAM developed end-to-end software for us. The project goals were worked out together with SIDESTREAM in personal workshops and flexibly adapted during the course of the project. This also worked great with less technical stakeholders. Due to SIDESTREAM's honest advice, we always felt very well taken care of and the final result was therefore convincing. Even after the project, SIDESTREAM continues to support us as a trustworthy partner."

Christian Stein - Managing Director, Coparion
Christian Stein

"As a know-how-driven company, we - like many others - struggle with the topic of knowledge management. Since there was no software on the market that served our purposes, I looked for other solutions and came across SIDESTREAM. Not only did I find a super dynamic team that was very familiar with modern tools, but also the first solution that was quickly usable for us. The collaboration was a lot of fun and therefore we will tackle our next projects with SIDESTREAM as well."

Ralf Gengenbach - Managing Director, gempex
Ralf Gengenbach

"The modern development approach of SIDESTREAM made me curious."

Dr. Stephan Küppers - Institute Manager, Research Center Jülich
Stephan Küppers

"The team has a forward-looking way of working and communicating. It addresses emerging problems and possible solutions at an early stage."

Martin Schuh - Development Manager, DuMont Business Information Tech GmbH
Martin Schuh

"The team's way of working is very pleasant and goal-oriented."

Ulf Morys - Finance Director Germany, Ubisoft
Ulf Morys

"Communication is straightforward and the modern development approach ensures high quality and speed."

Sebastian Staats - Executive Technical Director, Cheil
Sebeastian Staats

"Due to SIDESTREAM's honest advice, we always felt very well taken care of and the final result was therefore convincing."

Christian Stein - Managing Director, Coparion
Christian Stein

"Not only did I find a super dynamic team but also the first solution that was quickly usable for us."

Ralf Gengenbach - Managing Director, gempex
Ralf Gengenbach
Our software is made with care and according to the Cologne purity law
With the right approach, individual software development, which stands for quality and sustainability, succeeds. We provide insights into our secret recipe.
Zwei Personen am Scrum-Whiteboard
Agile collaboration and authenticity
We prefer to work in two-week sprints. In doing so, we are guided by SCRUM, but do not fanatically adhere to it. Rather, we always remain pragmatic and structured. With our epic and storyboards, we ensure maximum transparency.
Zwei Personen jubeln mit Pokal in der Mitte
Mastering every challenge with quality
As passionate builders, we are dedicated to the craft of software development. Therefore, we pursue the claim to achieve the best possible quality. With our hands-on mentality, we apply our skills in a target-oriented manner in a wide variety of industries.
Eine Person pflückt Früchte vom Obstbaum
Durable applications thanks to a stable base
Software is not a disposable product. We take care of each application like a fruit tree. With extensible architecture and modular development, we create a stable root system right from the start. This enables sustainable further development and continuous operation. In this way, the software will bring rich fruits in the long term.
Eine Person sitzt auf einem Kochhut mit Kochutensilien im Hintergrund
The recipe for the best development process
Take a good portion of quality awareness and mix it with automatic tests. Then add pull request reviews in a 4- to 6-eyes principle. At the end, the whole thing is refined with a modern CI & CD pipeline. Voilà!
As featured in
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Treats for your IT Manager

We serve software development in a menu.
We have specialized our cuisine on microservices. Because small portions open up more space to develop their flavor in the long term. Ideal maintainability, uncomplicated further development and versatile expansion of the world of taste. Sometimes less is more! If it fits, we also like to rely on serverless and NoCode!
Eine Checkliste mit Zahnrad
Aperitif
  • AWS Amplify
  • Serverless
  • Figma
  • Whimsical
  • Bubble
  • Airtable
Drei Zanräder
Main Course
  • VueJS + Nuxt
  • Typescript
  • NodeJS
  • Python
  • Rust
  • PostgreSQL
Cloud und Infrastruktur
Dessert
  • AWS
  • Azure
  • Docker
  • Kubernetes
  • Beyondcorp
  • Linux

Still curious?

Click through our interactive company presentation. You'll find exciting projects and more details about our work!
To the presentation

Who we are

From the heart of Cologne, we develop individual software solutions with passion and expertise.
Ali
Ali
Alina
Alina
Anahit
Ben
Ben
Cassandra
Cassandra
Channy
Channy
Daniel
Daniel
Denis
Deniz
Deniz
Dennis
Dennis
Felix
Felix
Flo
Flo
Francesca
Francesca
Johannes
Johannes
Kirill
Kirill
Kristina
Lukas
Lukas
Max
Max
Nils
Nils
Sherin
Sherin
Talha
Talha
Valia
Valia
Viran
You
You
Placeholder

A personal message from the founders of SIDESTREAM

Our vision at SIDESTREAM is to simplify life through technology. Therefore we promise: We successfully complete every project we start. 

Every day we face complex problems that we solve through custom software development. In this way, we reduce possible sources of error and optimize process flows. This enables our customers to focus on the essentials. For this to succeed, open and productive project communication is important to us - both internally and externally. Thus, we aim to combine our IT expertise with the industry-specific knowledge of our customers.

The heart of the company is, of course, our talented and motivated team of employees. The dedication of each team member has led to many exciting projects with loyal customers. We are proud of this work and look forward to the future.
Stay safe and take care,
Daniel & Nils
Ein Bild von den Gründern Daniel Kremerov und Nils Jonalik
Daniel Kremerov
Product Manager and co-founder
Nils Jonalik
Software Engineer and co-founder
DE