Senior AI Engineer – Multi-agent Systems

Zapdeck

Senior AI Engineer building and scaling agentic AI systems in a fast-growing startup. Collaborating with cross-functional teams to shape product features and drive AI innovation.

Posted 4/25/2026full-timeBerlin • 🇩🇪 GermanySeniorWebsite

About the role

Key responsibilities & impact

Build and scale AI systems: Design, implement, and optimize core components of our agentic AI architecture with a focus on performance and reliability
Develop agentic workflows: Build on multi-agent systems using LLMs, orchestration frameworks (LangGraph), RAG, and context engineering
Ship advanced AI features: Develop innovative capabilities such as layout optimization, structured reasoning flows, and multimodal workflows
Contribute to product evolution: Collaborate closely with product and engineering teams to shape features through experimentation and rapid iteration
Drive continuous improvement: Help refine best practices for evaluation, deployment, monitoring, and scaling of AI systems in production

Requirements

What you’ll need

Entrepreneurial mindset with strong ownership, creative thinking, and a pragmatic approach to building and shipping solutions quickly
At least 2 years of experience building production-grade AI systems, with a strong focus on Large Language Models
Proven experience designing and delivering agentic architectures and multi-step reasoning pipelines
Hands-on experience with orchestration frameworks such as LangGraph and retrieval systems (RAG/REC)
Strong understanding of prompt engineering, evaluation strategies, and LLM reliability optimization
Bonus: Experience with fine-tuning LLMs or working with multimodal / visual AI models
Residency in Berlin or the surrounding area
Fluency in English, our primary business language
Availability to start on short notice

Benefits

Comp & perks

Attractive compensation package including a competitive monthly salary and VSOP equity in a fast-growing AI startup
Flexible hybrid work model with two office days per week, complemented by regular team events
High level of ownership and creative freedom within a young, ambitious team, with the opportunity to help build a successful AI company from the ground up
Agile, output-driven work culture with minimal meetings, low administrative overhead tasks, and direct impact on the product
Early-stage startup exposure, including building and scaling core product functions while we onboard large enterprise customers

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

AI systemsLarge Language Modelsagentic architecturesmulti-step reasoning pipelinesprompt engineeringevaluation strategiesLLM reliability optimizationlayout optimizationstructured reasoning flowsmultimodal workflows

Soft Skills

entrepreneurial mindsetstrong ownershipcreative thinkingpragmatic approachcollaborationexperimentationrapid iterationcontinuous improvement