Agentic AI Developer

Start: asap
Period: 6 months+
Possible extenion: YES
40 hours per week

We are looking for a hands-on Medior Agentic AI Developer to build AI-driven digital employee experiences. You will combine prompt engineering, agentic AI and JavaScript development to create secure, scalable and user-friendly solutions that help employees find information, complete tasks and access services through natural language. ServiceNow experience is a plus, not a requirement.

• Design, develop, test and maintain LLM, prompt-driven and agentic AI solutions.
• Develop and optimize prompts using grounding, context management, structured outputs, guardrails and evaluation.
• Design agent workflows that use tools and enterprise data, maintain context and handle human handovers.
• Develop JavaScript applications, services, UI components, automations and integrations.
• Integrate AI solutions with enterprise platforms and data through REST APIs.
• Build conversational experiences for knowledge discovery, service requests and contextual guidance.
• Define and execute evaluations for quality, reliability, relevance, safety and consistency.
• Apply Responsible AI and secure development principles, including access control, data protection, traceability and human oversight.
• Translate business needs into technical requirements, prototypes and production-ready solutions.
• Improve self-service, automation and resolution times while reducing avoidable ticket volume.
• Work in an Agile/DevOps environment and contribute to testing, troubleshooting, documentation and continuous improvement.

• Relevant degree or equivalent professional experience in IT, Software Engineering, AI, Data Science or Information Security.
• 3+ years of experience in software development, automation, conversational applications or AI-enabled solutions.
• Strong hands-on JavaScript development skills.
• Practical experience with LLM prompt engineering, including prompt design, grounding, testing, evaluation, guardrails and reliability.
• Experience with Agentic AI, AI assistants, autonomous workflows, tool-using agents or multi-step LLM applications.
• Understanding of REST APIs, authentication, error handling and JSON.
• Experience with testing, debugging, version control and release practices.
• Ability to translate business needs into practical technical solutions.
• Experience with Agile/Scrum and DevOps.
• Fluent Dutch and English, spoken and written.

Nice to have

• Microsoft Copilot Studio, Azure OpenAI, Azure AI Foundry or comparable enterprise AI platforms.
• Agent orchestration, RAG, vector search, knowledge grounding or AI evaluation tooling.
• ServiceNow experience, including Employee Center, Virtual Agent, Now Assist, AI Search or Flow Designer.
• Knowledge of ITSM, ITOM, ITAM, SecOps, GRC or enterprise workflow management.
• Experience in large enterprise or regulated environments.
• UX/UI collaboration experience.
• Relevant AI, Cloud, JavaScript, ServiceNow, ITIL, IT4IT or SIAM certifications.