Senior Software Developer & Team Lead

L3montree

Job

In this role, you will develop secure software solutions in the cybersecurity domain, design architecture and CI/CD pipelines, take responsibility for the entire development process, and actively support your team in projects.

Job summary

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Job technologies

Your role in the team

  • Shape secure digital sovereignty with us!
  • Are you excited about working on projects that have social value and engaging software initiatives?
  • Then you can confidently help shape digital sovereignty with us!
  • We are a young, growing company based in Bonn, dedicated to software security and enhancing Germany's digital sovereignty.
  • We place particular emphasis on open-source technologies.
  • It is important to us that our projects are implemented with modern technologies, are meaningful, and above all, fun.
  • We not only provide consulting but also implement hands-on and develop our own products.
  • Accordingly, we can offer a good balance of conceptual design and practical development.
  • Your task as a team lead:
  • You coordinate smaller project teams, act as a central technical contact person, and promote the development of your colleagues.
  • You communicate with clients and actively contribute to projects.
  • Your responsibilities as a Senior Developer:
  • You develop and implement secure and scalable software solutions in the cybersecurity field that benefit society.
  • You create the design and architecture of security solutions using state-of-the-art technologies.
  • You optimize existing systems to improve performance, scalability, and security.
  • You implement and further develop CI/CD pipelines.
  • You collaborate with system administrators and security experts to create innovative solutions.
  • You take responsibility for the entire software development cycle: from planning and development to testing and deployment.
  • You conduct code reviews to ensure the highest code quality.
  • You integrate security mechanisms into container and Kubernetes environments.

Our expectations of you

Qualifications

  • What you bring to the table:
  • A high sense of responsibility and the ability to solve complex technical challenges.
  • Team-oriented work approach and excellent communication skills.
  • Good team coordination skills and enjoyment of management tasks.
  • Solid understanding of Linux and container technologies (e.g., Docker).
  • Expertise in CI/CD pipelines and automation with tools such as GitLab, GitHub, and Ansible.
  • Interest in continuous learning and the development of security solutions.

Experience

  • Several years of experience in software development.
  • Excellent knowledge of Golang and Node.js, as well as experience with Kubernetes.
  • Experience in the application of network security solutions.

What we offer

  • What we offer:
  • Meaningful work: Your code has a direct societal impact.
  • Flexibility: Hybrid work (office in Bonn + home office), 100% remote is not possible.
  • Further training: Budget for professional conferences and certifications.
  • Mobility: Germany Ticket, company bicycle or car upon agreement.
  • Team culture: regular events, a motivated team that sticks together, and office dogs.
  • Extras: modern office spaces and the freedom to contribute your own ideas.

Topics you will work on

Job locations

Map of the job locations
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  • Location Bonn
    Nordrhein-Westfalen, Germany

About your employer

l3montree GmbH is an IT security company based in Bonn, specializing in software security, open-source technologies, and DevSecOps. With a team of 15 professionals, the company supports software projects from consulting through secure coding to implementation and develops its own products such as the SaaS solution DevGuard.

Company type
Startup
Work model
Onsite, Hybrid
Industry
Internet, IT, Telecommunication
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Senior Software Developer & Team Lead

L3montree