Zertificon Solutions GmbH

Oct 22, 2026

Business Applications Administrator (m/f/d) B2B IT-Security Business

Germany

Berlin, Germany

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About the opportunity

Creation date

Does this sound like you? Then we look forward to your application.

Who we are

Zertificon Solutions – Software manufacturer since 2004. – We are IT security specialists: Our products encrypt corporate communication. More than 25% of the 100 highest-revenue German companies as well as hundreds of medium-sized businesses from all sectors already use our Z1 encryption solutions. We have much more planned and are growing steadily. Almost 140 employees already work with us in Neukölln. Join our professional, highly qualified team: Take on challenges, share your knowledge, keep learning, and discover your potential!

Your responsibilities

As an experienced and dedicated Business Applications Administrator (m/f/d), you will find an exciting environment where technology is embraced from the ground up to the executive level. You will build bridges between business and IT and work with highly competent colleagues who do not need you to explain the basics.

Zertificon has been successful in the market for 22 years. We are among the pioneers in the field of email encryption for companies. International corporations and renowned organizations sign and encrypt millions of emails daily with our software. In the energy market, our solutions secure AS4 messages around the clock, helping to keep the grid stable. Your tasks include:

Administration, configuration, and ongoing support of internal business applications, as well as management of application-specific user accounts, roles, and access permissions.

Analysis and resolution of application issues, as well as providing support to the service desk and specialized departments.

Responsibility for the secure and stable operation, documentation, integrations, licenses, and the entire lifecycle of the supported applications.

Planning, coordination, and testing of updates, configuration changes, new features, and application migrations.

Implementation of projects for process optimization and automation, as well as supporting selected AI-powered workflows and integrations.

Your profile

At least 2 years of relevant professional experience in the administration, support, or integration of business applications

Good knowledge of workflow configuration, REST-APIs, webhooks, system integrations, testing, and technical troubleshooting

Basic to good knowledge of AI/LLM applications and automation platforms such as n8n, Make, or Zapier

Proficient communication in German (at least B2) and English (at least B2), both written and spoken

Do you feel like you don't meet all the qualifications? Apply anyway if you find the tasks exciting. We would like to get to know you.

What we offer

Flexible working hours and home-office options

Mobility: Free Deutschlandticket, job bike leasing, or parking

Subsidies for meals (e.g., Lieferando) and internet for home office

Urban Sports Club membership for flexible sports, fitness, and wellness offers

Office perks: Rooftop terraces & green courtyard, organic fruit and drinks, acceptance of private packages

Get-togethers: Monthly Pizza Friday in the office, regular team events, big summer party

Responsible leadership: Structured onboarding, regular feedback, transparent goals

Innovative without startup risk: Profitable for two decades, we invest our own resources in innovation with great global market potential.

International team: Over 120 people from more than 30 nations work together to create an open working atmosphere.

About us

Why Zertificon?

Zertificon stands for securing digital business. We develop IT security solutions "Made in Germany" that companies trust – and enjoy using.

Independent & convinced: For over 20 years, we have been developing secure communication solutions – owner-managed, sustainably growing, and with a clear stance

Security with purpose: We believe in the freedom of digital communication. If you think Edward Snowden did the right thing as a whistleblower, we might share the same values. As a sign of our conviction, after a successful probationary period, we donate 1.000 € to an organization that supports Edward Snowden – provided you mentioned him in your application

Excellence through practice: We take on complex challenges – because we can. Our internal experts are among the best – even external specialists often learn from us. When we want the best result, we do it ourselves

Agile by conviction: We think fast, act pragmatically, and improve continuously. No bloated processes, no "because we've always done it that way." Initiative is welcome – though it will naturally be questioned, and not every bright idea makes it through

Security that gets used: We build software that is not only secure but also usable – not just for large corporations with teams of IT security specialists, but also for small and medium-sized businesses that need strong security without complexity

Diversity with focus: Our team of 130 employees and over 30 nationalities works together to make secure digital communication easily accessible for companies of all sizes

Languages

Business Applications Administrator (m/f/d) B2B IT-Security Business

About the opportunity

Who we are

Your responsibilities

Your profile

What we offer

About us

Why Zertificon?

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