Germany
DYMATRIX GmbH
Deutsche Telekom
Senior Cloud Developer - Senior Talos Linux Engineer / Immutable OS Specialist (m/f/d)
Germany
Leinfelden-Echterdingen, Baden-Württemberg, Germany · Hamburg, Hamburg, Germany · Darmstadt, Hesse, Germany · Frankfurt, Hesse, Germany · Düsseldorf, North Rhine-Westphalia, Germany · Berlin, Germany · Brunei
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About the Position
In this role, you will take technical responsibility for the development, customization, and hardening of Talos Linux as an Immutable Operating System in a security-critical cloud and infrastructure environment.
A central focus is on implementing secure boot mechanisms, building a TPM-based chain of trust, and securing system integrity through modern measured boot concepts. Furthermore, you will be responsible for configuring and optimizing the PXE/iPXE boot process for automated node provisioning.
You will develop and extend Talos-specific components to map special requirements of the target environment – for example, in the areas of GPU integration, storage connectivity, and hardware-specific optimization. Additionally, you will ensure that the operating system can be hardened and operated securely in accordance with relevant CIS and BSI guidelines.
You will work independently on complex technical issues, actively contribute to architectural and implementation decisions, and ensure that the developed systems are transferred to operations in a stable, interoperable, automatable, and secure manner.
Your Responsibilities
- Development, customization, and optimization of Talos Linux as an Immutable Operating System
- Implementation of Secure Boot, UEFI, TPM 2.0, and Measured Boot
- Building and securing an end-to-end chain of trust to ensure system integrity
- Configuration and optimization of PXE/iPXE-based provisioning processes
- Development of Talos Extensions, especially for special hardware requirements such as GPU and Storage
- Customization and hardening of Linux kernel components, modules, and security mechanisms
- Integration and optimization of containerd and other container technologies
- Automation of fog node provisioning and OS configuration
- Implementation of CIS and BSI compliant hardening measures
- Technical steering and active shaping of OS provisioning and platform projects
Must-Have Skills
- At least 2 years of practical experience with Secure Boot, UEFI, TPM 2.0, Measured Boot, and building technical chains of trust
- At least 2 years of experience with PXE/iPXE for automated OS deployment
- At least 3 years of very good knowledge in Go, ideally for the development of Talos Extensions
- At least 2 years of experience in Linux kernel engineering, especially with modules, security, and kernel hardening
- At least 2 years of practical knowledge in handling containerd and container technologies
- At least 3 years of very good shell scripting skills
- At least 2 years of experience in hardening operating systems according to CIS and BSI guidelines
- At least 2 years of experience with automated fog node provisioning and OS configuration
- Demonstrable experience in developing and customizing Talos Linux for special hardware, e.g., GPU or Storage
- Ability to independently implement complex secure boot and TPM concepts
- Experience in leading or actively shaping OS provisioning projects
- Proficient in handling compliance and security requirements in the OS and cloud environment
What We Offer
- Flexible Work Arrangements: Benefit from great flexibility with the option to work up to 95% remotely, as well as flexible working hours for optimal work-life balance.
- Exciting Projects & Technologies: Work on innovative cloud solutions and state-of-the-art delivery pipelines with future-oriented technologies.
- Development & Training: We invest in your future with diverse training opportunities, courses, and clear career paths within a globally operating group.
- Dynamic Team: Become part of an agile and supportive team characterized by implementation strength, team spirit, and a willingness to take on challenges.
- Attractive Overall Package: Competitive compensation, comprehensive social benefits, and additional employee offerings.
- Secure Work Environment: The stability of a large company with long-term prospects.
About T-Systems International GmbH
At T-Systems, we offer our business customers the right system solutions for their digital business. With our portfolio, we ensure that digital transformation reduces complexity, saves costs, and simplifies everyday work. Our focus areas are Connectivity, Digital, Cloud & Infrastructure, and Security - Let's power higher performance!
Does this job sound perfect for you? Then seize your chance! Please apply online. Severely disabled applicants will be given preferential consideration in cases of equal suitability. We look forward to hearing from you!
The processing of your application for job postings outside of Deutsche Telekom AG may also take place outside of Deutsche Telekom AG in European countries. This also applies to the processing of applications for subsidiaries of Deutsche Telekom AG. Therefore, the following note for our civil servants: You are not obligated to attach personal file-relevant documents, especially civil servant evaluations, to your application. However, you are free to provide these documents voluntarily.
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