Fullstack Developer (m/f/d) - C#/.NET & AngularJS

Department: PT-SMB LFM

Employment Type: Permanent employee

Schedule: Full-time

Seniority: Experienced

Location: Karlsruhe, DE, Sofia, BG, Remote, Germany, Remote, Bulgaria

We are looking for a Fullstack Developer to join the team working on our product Amberlo, our cloud-based Legal Practice Management platform used by law firms across Europe.
You will work in an international engineering team developing and improving a modern SaaS application built on the Microsoft stack with an AngularJS frontend, hosted on AWS.

If you enjoy building software that solves real problems and working in a collaborative, international team, we would love to hear from you.

Your workplace / location:
Work at one of our offices in Germany or Bulgaria, or remotely from anywhere in Germany / Bulgaria.

• Independently implement complex development projects and user stories
• Provide technical guidance on design and architecture, refine user stories and tasks, and execute them using agile methodologies in close collaboration with the team and the Technical Lead
• Develop clean, efficient, and well-documented code in accordance with best practices
• Conduct code reviews and ensure high code quality through comprehensive unit testing
• Mentor and support software engineers, fostering knowledge sharing and professional growth
• Analyze, troubleshoot, and resolve technical issues throughout the entire development lifecycle
• Create and maintain technical documentation and design specifications

Our Tech Stack

• Frontend: Angular, AngularJS
• Backend: .Net/ C#, Microsoft ecosystem
• Infrastructure: AWS
• Methodologies: Scrum, Scaled Agile, Pair Programming
• Tools: Visual Studio Code, GitHub Copilot, Claude Code, Azure DevOps, Git

• Extensive professional experience in software development as Fullstack Developer with a focus on modern technologies and architectural approaches
• Strong expertise in C# / .NET (Backend) and Angular + AngularJS (Frontend)
• In-depth knowledge of cloud platforms (AWS)
• Experience working with Git and modern development workflows
• Ability to work in agile development environments
• Strong collaboration skills and openness to knowledge sharing
• Comfort working with existing codebases and asking questions when needed
• Fluency in English, both written and spoken

Nice to have

• Experience in LegalTech or software used by law firms

You will work in a distributed international, english-speaking team, currently consisting of 8 developers and 2 QA engineers working across Germany, Belgium, Bulgaria and Lithuania.

We value collaboration and transparency: we actively avoid silos and encourage developers to support and learn from each other.

• Digital Get-to-know: In a 20-minute conversation with our recruiter, we’ll discuss mutual expectations.
• Digital Interview: Next, you’ll meet our Director of Engineering and dive deeper into technical topics and the role itself.
• On-site Interview & Team Introduction: You’ll visit us on-site, where we’ll conduct a technical deep dive based on an example together with one of our team members. In addition, you’ll have the opportunity to gain more insights into our work environment and meet more colleagues.

Our full benefits & perks are explained in our recruitment process, but on our career site you will have a good overview: https://www.stp.one/en/careers. As a european company, each country works differently, but some benefits/perks are for all employees: 

• Learning & Development budget
• Employee referral bonus
• Mobility: company bikeleasing, support in public transportation
• Workation: up to 30 days per year within EU
• Workplace glasses
• Tax-free benefits
• Events & Company celebrations (summer party, annual kick-off,..)
• Flexible work models
• English courses for all levels

If you have any questions, feel free to reach out to our recruiter:

Alexandra Ferschke 
E-Mail: [email protected]