Job
- Level
- Senior
- Job Field
- Web, Software, Full Stack
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Location
- Villingen-Schwenningen
- Working Model
- Hybrid, Onsite
Job Summary
In this role, you will design and implement the architecture of an AI platform, integrate DATEV services, and build scalable solutions with modern technologies while ensuring compliance with security regulations.
Job Technologies
Your role in the team
- You are the architect and hands-on developer of our AI platform.
- You understand how a visionary architecture turns into functioning software – and you recognize that a law firm has different requirements than a startup: confidentiality, availability, and regulatory compliance are non-negotiable.
- Further develop and build the five-layer platform architecture (Frontend, Workflow Engine, AI Services, Data Layer, Security) together with the project management.
- Use AWS Bedrock and Anthropic Claude models in production in accordance with § 203 of the German Criminal Code, including Zero-Data-Retention configuration.
- Integrate and customize an AI frontend into our work environment.
- Build the DATEV integration (DATEV Connector, DATEVconnect, possibly DATEV ASP).
- Design, develop, and roll out client portal and employee workplace.
- Special agents for our business areas build (Family Office, funding, inheritance law, annual financial statements, etc.).
- Responsible for in-house code repository, CI/CD pipelines, and cloud infrastructure (AWS Frankfurt).
- Coordinate external developer service providers technically as needed.
- Make the platform architecture scalable for external licensing in the long term.
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Our expectations of you
Education
- Completed degree in Computer Science, Business Informatics, or a comparable qualification.
Qualifications
- Deep understanding of TypeScript and Node.js for frontend and backend.
- Solid Python skills for AI services and data processing.
- Experience working with LLM APIs (OpenAI, Anthropic, AWS Bedrock, or comparable).
- Proficient in Docker and container-based deployments.
- Proficient in German (verbal and written).
- Go for performance-critical services.
- LangChain, LangGraph or proprietary AI orchestration frameworks.
- Infrastructure as Code (Terraform or AWS CDK).
- GraphQL for API design.
- Microsoft Graph API (Office 365, SharePoint, Outlook).
- Familiarity with § 203 of the German Criminal Code requirements or similar industry standards (Healthcare, Banking).
- You think architecturally and work pragmatically.
- You understand that confidentiality takes precedence over speed.
- You translate between professionals and code – and enjoy it.
- You enjoy building long-term sustainable structures — no hack-and-forget solutions.
- You are curious about the tax and legal world and are learning the technical topics as well.
Experience
- At least 5 years of experience in developing productive web applications.
- Experience with modern frontend frameworks (React/Next.js or equivalent).
- PostgreSQL expertise including experience with pgvector for embedding storage.
- AWS experience (at least IAM, KMS, EC2/ECS, S3, RDS).
- Experience with GDPR-compliant software development.
- Experience with Kubernetes or AWS ECS.
- Experience with DATEV API (Connector, DATEVconnect, DATEVasp).
- Experience with industry-specific software for tax consulting or legal practice.
- First leadership experience - either technical or disciplinary.
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What we offer
- A key role in the development of a multi-year, strategically central project.
- Full responsibility for a platform that is to become an independent product in ten years.
- Cutting-edge tech stack with a focus on maintainability, not hype.
- Short decision-making paths directly with management.
- Hybrid working: Presence in Villingen-Schwenningen 2-3 days per week, the rest flexible.
- Competitive salary with performance-based component.
- Professional development budget (conferences, certifications, technical literature).
- Modern hardware of your choice.
- A firm culture that takes engineering seriously and does not see it as a 'support function'.
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Topics that you deal with on the job
Job Locations
This is your employer
Welzer & Partner Mbb Steuerberater Rechtsanwälte
Welzer & Partner mbB is a law firm based in Villingen-Schwenningen with additional offices in St. Georgen and Stuttgart. For over 25 years, the team has been advising both businesses and individuals on tax and legal matters. The firm was established in 2016 and focuses on the needs of medium-sized enterprises.
Description
- Company Type
- Established Company
- Working Model
- Hybrid, Onsite
- Industry
- Law, Finance, Economics
Full-Stack Developer / AI Engineer
- Location
- Villingen-Schwenningen
- Working Model
- Hybrid, Onsite
- Diversity
- Open for all genders
