codefortynine GmbH | Germany | 76xxx Karlsruhe | Permanent position | Part time - flexible / Full time / Home office | Published since: 15.08.2026 on stepstone.de
Senior Softwareentwickler Full Stack - C# / AWS (m/f/d)
We are a software company based in Karlsruhe, Germany. As Atlassian Platinum Marketplace Partner, we develop B2B products for Jira and Confluence. Our cloud apps use over 20,000 customers and more than 2.5 million. Users in over 150 countries.
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Your tasks • Your profile • What we offer
You work with us “Full Stack”, i.e. from frontend to backend and databases to the cloud infrastructure, everything is offered to us You take tasks with the focus on TDD, Clean Code, Continuous Delivery and other modern software development practices - e.g. for our current app “Deep Clone for Jira” You evaluiate new cloud technologies for our company and pass on your knowledge to our team You participate in our Code Reviews where we review 100% of our Commits You work with the current Technologiestack: C#/.NET, VueJS 3, DynamoDB, Docker and AWS
You bring at least five years of experience in software development with C# and the .NET framework. You think and work “Full Stack” – from modern web frontends (e.g. with Vue.js) to backend to cloud infrastructure in AWS. Quality is important to you: you have a passion for clean code, test driven development and agile methods. As a curious and proactive person, you work quickly into new technologies and share your knowledge with the team. You will certainly communicate in German and English (both on C1 level) to successfully participate in the team and on the Codebase.
Attractive salary package: You are expected to pay between €70,000 and €100,000, depending on your experience, as well as the possibility of employee shares. Maximum flexibility: Work remote where you want – we only meet every six weeks in Karlsruhe. Your working time is flexible, even in parttime (from 80%). Real work-life balance: With us there are 30 days vacation and does not guarantee a Crunch Times so that you stay up and creative. Sense and autonomy: As a self-financed company without investors, we define our roadmap itself and you actively shape it. Strong team, strong partners: As Atlassian Platinum Partner, you participate in international events and work in an experienced team that is open to new ideas. More than just a job: Look forward to team events from game nights to hikes, use the bike leasing and be proud that we donate 15% of our profit. .
Location
 | codefortynine GmbH | |
| 76131 Karlsruhe | ||
| Germany |
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