GenAI Field Engineer: Build & Deploy AI Apps

Sia Partners; Brussel Hoofdstad; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Mobility budget / company car

Hospital insurance

Performance-related bonus

Learning budget & partner trainings

Job summary

Sia Partners seeks a Forward Deployed Engineer to build GenAI applications (agents, RAG pipelines, copilots) and drive adoption across client teams. You will shape LLM-based solutions, validate ideas with users, and iterate rapidly in production.

You’ll work at the intersection of Data Science, ML/Platform Engineering, and client delivery, ensuring measurable ROI and scalable products. You’ll collaborate with top tech partners, deploy across AWS, Azure, or GCP, and leverage LangChain,

Qualifications

• 2+ years of professional experience in AI/ML or related field.
• Hands-on experience with LLMs in production, research, or substantial personal projects.
• Strong Python coding skills.
• Experience building with LLMs: prompting, RAG, fine-tuning, agent orchestration, and evaluation of model outputs.
• Ability to communicate with both technical and non-technical stakeholders.
• Fluent in English; French and Dutch are a plus; German is a strong advantage.
• Experience deploying and operating solutions in cloud environments (AWS, Azure, GCP).
• Exposure to MLOps/LLMOps practices (CI/CD for models, prompt versioning, evaluation pipelines, observability).
• Strong understanding of vector databases and embeddings.

Responsibilities

• Sit with a client’s team and identify where AI adds value and what to ship.
• Design and implement LLM-based systems: autonomous agents, RAG pipelines, workflow automation, and conversational interfaces.
• Integrate solutions into client environments (APIs, databases, business tools) while complying with GDPR and EU AI Act.
• Train users and drive adoption, iterate until value is realized.
• Collaborate with engineers and executives to align delivery with business goals.

Skills

Python

LLM development

Prompting & evaluation

API integration

Cross-functional communication

Cloud computing

Education

Bachelor's degree in Computer Science or related field

Tools

LangChain

LlamaIndex

OpenAI SDK

Anthropic SDK

AWS

Azure

GCP

pgvector

Job description

Sia Partners seeks a Forward Deployed Engineer to build GenAI applications (agents, RAG pipelines, copilots) and drive adoption across client teams. You will shape LLM-based solutions, validate ideas with users, and iterate rapidly in production.

You’ll work at the intersection of Data Science, ML/Platform Engineering, and client delivery, ensuring measurable ROI and scalable products. You’ll collaborate with top tech partners, deploy across AWS, Azure, or GCP, and leverage LangChain,