About Us

Actively shaping the digital transformation – Managing Director Rainer Keiditsch founded citema systems GmbH exactly out of this motivation. Previously active for over 20 years as the founder and CEO of a 200-employee software company, implementing classic development projects for Germany’s largest OEMs, Rainer Keiditsch ventured a new direction towards future technologies with citema systems in 2016. With innovative approaches, we at citema are working on new fields of technology and driving innovations. The successful start was made with the development of our own blockchain solution. Over the years, the portfolio has been expanded to include consulting and development projects, especially in the area of cyber security, as well as ISMS consulting. In addition, we develop highly complex, security-critical software for SMEs, OEMs and government clients in long-term projects with teams of up to 25 people and according to industry-standard process models and specifications. The development of business and web applications completes the portfolio of citema systems.

Our Team

At citema, people with different skills, talents, backgrounds and experiences come together. Our international team represents all age groups. We value diversity and support, challenge and learn from each other every single day. For us, collaboration means work together across departments to achieve our common goals.

Corporate Culture

Working at citema is characterized by openness, tolerance and transparency. We live a relaxed cooperation between colleagues, combined with a professional mindset. We always treat each other as equals. Independent work based on mutual trust and a healthy balance between work and private life are very important to us.

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You discover new ways and possibilities to find solutions and choose your own tools. We offer you the optimal framework so that you can grow personally and professionally at citema.


We are shaping the digital future with innovative approaches. At citema you find a new-work environment with new technologies and e.g. chain data blocks or protect IT systems from cyber attacks. We live and apply our competences in our own company and are technologically always up-to-date.

Drive Digital Technologies

We believe that every individual makes a difference and value a hands-on mentality. That's why we encourage all employees to proactively contribute to our success and work towards our mission.



Citema is a self-funded company that has continued to experience massive growth in 2020 due to its focus on combining new technologies with traditional software development projects. We believe that a long-term professional perspective offers the best possible conditions for our mutual success and creative solution finding. That is why we at citema also work exclusively with permanent employment contracts.

Personal Development Plan

At citema we offer you technological and personal transformation. We want you to develop with citema, according to your skills and interests. Together we create a development plan that shows you opportunities and perspectives in our company and offers you deep insights into the most exciting technology fields by participating in thematically diverse projects.

Experience and Network

The management team behind citema systems has years of experience and expertise in building and developing companies with up to 200 employees. The team has been working together in the market for more than 20 years and has built up a broad national and international network.

Modern Work Concept

To us, it is not important when or where you work, but that you make a difference at and with citema. We offer you the possibility to work flexibly from home, depending on the project requirements, as long as the agreed targets are met. In order for you to achieve the best possible results, we provide you with the latest software and hardware.

We are constantly on the hunt for people who are a source of inspiration and fit into our team.

Take a look at our current job offers.