C Senior Software Engineer

Who we are

Greenbone is a globally operating company developing open-source solutions for vulnerability analysis and management. Our products protect the digital infrastructures of organizations of all sizes by identifying security issues before they turn into real threats. We operate in a rapidly growing market and are driven by innovation, flat hierarchies, and a culture of openness. Trust, teamwork, and personal growth are central to how we work – as is a healthy work-life balance.

As support for our development teams, we are looking for a Senior C Software Engineer (m/f/d) with many years of practical experience who enjoys advancing and helping to shape solutions. Motivated, dynamic and diverse teams are waiting to benefit from your expertise.

• We consider the human “fit”, a strong understanding of modern coding practices and structured problem-solving skills more important than mastering specific technologies. Therefore, feel free to apply even if you have only worked with some of our technologies.

Your mission

• Collaboratively developing solutions and making decisions as part of a Kanban team
• Extending our (mostly public) projects hosted on GitHub with new features and fixes
• Applying common development practices such as pair programming, clean code, code reviews, TDD, continuous integration, etc.
• Performing failure analysis to component level and investigating root causes
• Developing automated tests for new features
• Promoting the team towards more effective and satisfying work by providing constructive input during daily work and retrospectives
• Supporting the product owners in designing meaningful user stories
• If interested, co-designing the future architecture
• If interested, mentoring less experienced or new colleagues.

What you offer

• Experience in solving backend structure problems/tasks on a larger scale
• Knowledge of the pros and cons of a solution and ability to discuss them
• Architecture knowledge and experience in breaking down bigger product visions into smaller development tasks
• Test automation knowledge
• You are communicative, open and eager to learn
• You enjoy new technologies and methods
• You are motivated by complex and challenging tasks
• You recognize tasks independently and can complete them in a structured way
• English communication is no obstacle for you

Must-have/core skill:

• C

Nice to have:

• Git
• Github Actions
• Docker
• Bash (Unix shell)
• PostgreSQL
• Python

Why us

• Opportunity to help shape a growing cybersecurity company
• Flexible working hours and 100% remote option
• A motivated and diverse team with an open company culture
• Flat hierarchies, direct communication, and genuine appreciation
• 30 days of vacation and an attractive pension scheme
• Job bike, fitness programs, and corporate health management
• Comprehensive, ergonomic work equipment - also for the home office
• Family-friendly environment and a healthy work-life balance

About us

We are looking for people who want to develop their full potential with us. We seek team players who are willing to take on responsibility and share their enthusiasm. Above all, we want you to enjoy your work and want to make a difference! We value diversity and welcome applications from people of all genders, nationalities, ethnic and social backgrounds, religions, disabilities, age, sexual orientation and identity.

Your Application Process at Greenbone

1. Initial meeting with the Talent Acquisition Team (Duration: 30–45 minutes)

2. Interview with the Hiring Manager and Peer (Duration: approx. 60 minutes)

3. Final interview with Department Lead or C-Level (Duration: approx. 60 minutes)

The process may vary slightly depending on the position. For some technical roles, a case study is included between the second and third interview.

We look forward to getting to know you!

If you want to take a look behind the scenes, have a look at our LinkedIn channel or read what colleagues have to say on Kununu.