17 hours ago
Berlin, GermanyMid Level
Responsibilities
- Build and own end-to-end applied AI features, including document versioning and agentic chat workflows.
- Design and implement database schemas, LLM tuning, evaluations, error analysis, and user interfaces.
- Develop workflow harnesses, decision-trace standards, evaluation tooling, and reusable human review and approval surfaces.
- Model construction ontologies and project graphs, including entity resolution across documents such as BoQs, contracts, and drawings.
- Build evidence-linked, auditable decision features and extend multimodal ingestion for PDFs, scans, drawings, and 3D models.
- Create read/write integrations with document management and ERP platforms.
- Contribute to scalable data pipelines and native BIM/DWG file processing.
Requirements
- At least 3 years of experience as a full-stack software engineer delivering production-grade applied AI features to customers.
- Proficiency with TypeScript, Python, and SQL.
- Experience building backend APIs and database schemas with frameworks and ORMs such as Fastify and Prisma or equivalents.
- Experience integrating and optimizing LLM APIs such as OpenAI, Azure, Gemini, or Cohere.
- Experience with AWS cloud infrastructure, including RDS, S3, and Elastic Beanstalk, or equivalent providers.
- Experience building data pipelines and ETL workflows for unstructured data at scale.
- Experience with vector databases, semantic search, AI evaluation frameworks, and error analysis.
- Experience building internal platform or developer-facing tooling used by other engineers.
- B2B product experience, ideally in an early-stage startup or as a founder.
- Fluent spoken and written English; German is helpful but not required.
- Familiarity with Prefect or Airflow, document processing/OCR/multimodal ingestion, and observability tools such as Datadog or Langfuse is a plus.
Benefits
- Salary range of 80,000 to 120,000 EUR annually.
- On-site work five days per week in Berlin, Germany.
- Candidates must be based in Berlin or willing to relocate.
- Visa sponsorship is not available for this role.