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About the Role
As a Senior AI Engineer at Libra, you will develop and enhance our core product by building end-to-end features that utilize advanced LLM APIs. You will collaborate with Product, Legal Engineering, and Design teams to create AI-powered experiences for lawyers across Europe, working in a hybrid model at the Merantix AI Campus in Berlin.
Responsibilities
- Design, implement, and maintain AI-driven product features end-to-end using LLM APIs.
- Develop chat-based UX flows and non-visible AI integrations powering Libra's core functionality.
- Build and optimize RAG systems, including document parsing, semantic chunking, and retrieval pipelines.
- Build scalable, maintainable backend systems using FastAPI and modern Python tooling.
- Design and implement agent orchestration systems for complex, multi-step legal workflows.
- Build infrastructure for evaluations and benchmarking, including continuous monitoring and alerting for AI features.
- Ensure high security, reliability, and data privacy standards across all systems.
- Collaborate with Product and Legal Engineering to rapidly prototype, test, and refine new AI use cases.
- Explore new models, tools, and techniques, including AI coding agents.
- Contribute to a pragmatic, execution-focused engineering culture.
Requirements
- Deep experience building products that integrate large language models (LLMs) via APIs.
- Proficiency with FastAPI, Python, and common data science packages.
- Strong understanding of software engineering and security best practices.
- Experience with modern AI developer tools (e.g., Cursor, Claude Code, Copilot, etc.).
- Excellent communication skills in English.
- Entrepreneurial mindset and a deep sense of urgency in achieving goals.
- Self-starter who enjoys autonomy but thrives in a collaborative team.
- Pragmatic approach to problem-solving, focused on impact.
- Ability to balance trade-offs between fast, simple solutions and long-term scalability.
- Desire to build products that make AI truly useful for real professionals.
- Applicants may be required to appear onsite at a Wolters Kluwer office as part of the recruitment process.
Skills
- FastAPI
- Python
- Data science packages
- AI developer tools
- TypeScript
- Front-end development
Location
- Berlin
- Remote
Work Type
- Hybrid
- Permanent employment
Experience Level
- Senior
Benefits
- Permanent employment from day one.
- Remote work & flexibility: Work remotely up to 3 days per week (home office) with flexible working hours.
- Work abroad flexibly: Work from anywhere within the EU for up to 20 days within a twelve-month period.
- 30 vacation days starting from 2027 (26 days for 2026).
- 1 additional day off per year for volunteer work (Volunteer Day).
- Support for development: E-learning via LinkedIn, online language training with goFluent, and other training and development opportunities.
- JobRad leasing for bicycle or e-bike.
- Company pension scheme.
- €300 budget for IT equipment for working from home.
- Modern on-site working: Attractive office in Berlin.
- Structured onboarding with a buddy program.
About the Company
- Libra is transforming how legal professionals work with an AI platform that combines deep legal reasoning with generative technology.
- Libra became one of Europe's fastest-growing legal AI companies and joined Wolters Kluwer in late 2025.
- Together, Libra and Wolters Kluwer are building the most powerful AI workspace for lawyers in Europe.
- Wolters Kluwer is the global leader in legal information services.
Equal Opportunity
- Our Interview Practices: To maintain a fair and genuine hiring process, we kindly ask that all candidates participate in interviews without the assistance of AI tools or external prompts. Our interview process is designed to assess your individual skills, experiences, and communication style. We value authenticity and want to ensure we’re getting to know you—not a digital assistant. To help maintain this integrity, we ask to remove virtual backgrounds and include in-person interviews in our hiring process. Please note that use of AI-generated responses or third-party support during interviews will be grounds for disqualification from the recruitment process.