IT Sicherheit – frischer Wind
IT security – a breath of fresh air
Sécurité informatique – un vent de fraîcheur
Seguridad informática – un soplo de aire fresco
Hacker sind kreativ und finden immer neue Wege in Unternehmen einzudringen. Um Angreifern weiterhin einen Schritt voraus zu sein, braucht es immer wieder neue Ideen.

KALWEIT ITS – Wir bringen frischen Wind.
Hackers are creative and always find new ways to penetrate companies. To stay one step ahead of attackers, new ideas are always needed.

KALWEIT ITS – We bring a breath of fresh air.
Les pirates informatiques sont créatifs et trouvent toujours de nouveaux moyens de s'introduire dans les entreprises. Pour garder une longueur d'avance sur les attaquants, il faut sans cesse de nouvelles idées.

KALWEIT ITS – Nous apportons un vent de fraîcheur.
Los hackers son creativos y siempre encuentran nuevas formas de penetrar en las empresas. Para estar un paso por delante de los atacantes, siempre se necesitan nuevas ideas.

KALWEIT ITS – Traemos un soplo de aire fresco.

Penetration tester training

24 months at 20h/week or 12 months at 40h/week. A fixed salary and a promise:


We train you as a pentester. As far as it goes – as far as we come. At the end, we offer you the chance of a permanent full-time position as a junior penetration tester.


This is your chance – what are you waiting for?



As an experienced consulting firm specializing in manual penetration testing, one thing has always been very clear to us: the training of new colleagues should meet the highest measures and, above all, ensure one thing: genuine competence, practical experience and an ethical approach.

Since 2021, we have been training our own penetration testers in-house (not as an apprenticeship and not in accordance with the requirements of the Vocational Training Act). Our trainees enjoy hands-on workshops and can work on real pentesting projects after a foreseeable period of time and according to their own learning progress and under the supervision of a senior consultant.

A personal mentor, individual support and a lot of practical experience.

We offer selected graduates a permanent full-time position in our company.

Your application

If you want to know where to send your application, you have to look at the robot texts. Creativity and ingenuity are required here.

When you have solved the puzzle, you will receive our mail address especially for applications. We ask below for the following information to be provided:


– expressive and individual application letter

– Complete curriculum vitae including references and, if applicable, proof of certifications obtained

– Police clearance certificate (not older than six months due to work in a security-relevant area and, if applicable, support of KRITIS customers)

auditable proof of academic achievement

– Voluntary: Proof of special interest in IT security (private projects, CTF/Hack the box, membership in associations, etc.)


This challenge will show you if you are hacktastic enough. Have fun!

Good reasons for us

  • We do it with passion!
  • Cordial togetherness
  • Varied and exciting projects with international customers (no standard pentests!)

Team spirit is our corporate culture

  • Knowledge Exchange
  • Passion and passion
  • Flat hierarchies – working at eye level with colleagues and customers
  • Lots of responsibility right from day one – we challenge and encourage to take you to the next level
  • Regular team events


  • Personal coaching – continuing education through team development, support/funding for certifications, personal coaching from external coaches and management.
  • Remote work – whether it’s from Berlin, Rome or Tokyo, from home or from the office, as long as you’re conscientious about it, everyone’s happy!
  • Company psychologist for coaching
  • 30 days vacation
  • High promotion prospects and further training opportunities
  • We’ll get you so far ahead professionally that every company will want you – and that’s exactly why you’ll stay!


  • Modern workplace with ergonomic furniture, height-adjustable tables
  • Office building awarded DGNB Gold certificate
  • Air conditioning in all rooms, floor to ceiling windows
  • Drinks flat rate (coffee, juice, water, soft drinks)
  • Office in the heart of Hamburg between Binnen- and Außenalster
  • great view of the Alster (from the communal roof terrace and partly from the offices)
  • Hardware: High-end notebook (sometimes even two), 4k curved monitor, smartphone and a lot of useful gadgets and equipment – with us you are better equipped than with the Big Four!