Senior Developer / Senior Software Developer - Internal Platforms (m/w/d) C#/.NET

SOS Software Service GmbHAugsburg, Augsburg, BayernArbeitsagenturpublished 08/24/2026
Must-have:PythonC#HTMLAzureDockerDevOpsAISeniorRemoteHybrid
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html Senior Developer / Senior Software Developer – Internal Platforms (m/w/d) C#/.NET

Senior Developer / Senior Software Developer – Internal Platforms (m/w/d) C#/.NET

Full-time · Augsburg / hybrid

At SOS, we develop the software that makes our business work every day: interfaces, automations, proprietary tools. Our colleagues from sales, purchasing, and accounting are our customers. What you build is used by people two doors away every single day. Not code for a drawer, but code that accelerates processes and relieves teams as early as tomorrow. Here, development is not a cost center; with us, it is the lever.

Together with our dev team, you will develop and coordinate closely with our two Tech-Leads on technical decisions. No hierarchy theater, with real say in what you build.

Senior Developer / Senior Software Developer – Internal Platforms (m/w/d) C#/.NET What you do with us

  • You further develop our internal systems. C#/.NET is our core; you modernize existing systems, build new ones, and use AI tools as an accelerator, not as a buzzword
  • You connect systems that need to talk. APIs, interfaces, data flows with customers, suppliers, and partners
  • You automate what can be automated. Custom developments, smart extensions of existing tools; where AI can provide meaningful support, we outsource tasks there
  • You build instead of just planning. From whiteboard to deploy in days, not quarters

What you bring with you

  • Several years of professional experience as a software developer with C#/.NET
  • Good understanding of APIs, integrations, and scalable solutions
  • Openness to AI, but also the ability to critically examine and correctly use AI results instead of adopting them unreflectively
  • Ideally experience with Python, Docker, Azure DevOps, MS SQL, or Odoo
  • Desire to work hands-on, take responsibility, and truly finish things – a doer instead of a talker
  • Good English – development communication is conducted in English

Why SOS

  • Direct Impact. What you build goes into Production, not into the backlog graveyard
  • Your grateful customers are in the building. Visible impact, no anonymous users; feedback comes directly and honestly
  • Short paths. Management, Tech, Business are just one Teams channel away.
  • Tempo and pragmatism instead of endless spec rounds
  • Hybrid working with an office in Augsburg. Office when it makes sense, remote when it is more productive
  • A team with drive. No corporate fatigue, no political games

What awaits you

  • Lots of creative freedom
  • Direct collaboration at eye level
  • A motivated, pragmatic team
  • Modern technical topics with real impact
  • Flexible working hours and hybrid working
  • Openness to specifically expanding the tech stack if that is the best solution for the task

Perspective We are modernizing our system landscape with AI support and are gradually building our own AI-supported automations. If you want to dive deeper into this, this is the right place for it.

Tech-Stack C#, .NET, EF Core, REST, MS SQL, Azure DevOps, Docker. Python and AI/LLM tools are welcome and are becoming increasingly important to us.

Your application

We look forward to receiving your meaningful application, stating your salary expectations and earliest possible starting date, via our application portal.

SOS Software Service GmbH Unterer Talweg 40 | 86179 Augsburg (Bayern)

Website: sos-software.com