Senior Platform AI Engineer

Who is Nexxen?
Flexible advertising, unified by data. Nexxen empowers advertisers, agencies, publishers and broadcasters around the world to utilize data and advanced TV in the ways that are most meaningful to them. Our flexible and unified technology stack comprises a demand-side platform (“DSP”) and supply-side platform (“SSP”), with the Nexxen Data Platform at its core.

Why join the Nexxen team?
With a global footprint, you can be part of a team that is transforming advertising through our creative, flexible and unified solutions. Employees hustle, commit and dedicate themselves to pillars that make up the Nexxen Way – the 3Cs - Customer Centric, Curious Mindset, Collaborative with No Ego.

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Nexxen Fraud Alert and Notice: Protect Yourself from Impersonation and Fraudulent Activity

We are looking for a Senior Platform AI Engineer to join within the AI Engineering Group in Tel Aviv. This role is focused on building the foundational AI infrastructure and agentic frameworks that power next-generation AI capabilities across Nexxen’s products.

What You’ll Do

• Design and build LLM-based platform capabilities used across multiple products

• Architect and implement agentic systems (multi-agent workflows, tool usage, orchestration layers)

• Develop and implement innovative AI-driven solutions to advance platform capabilities.

• Solve complex business problems using AI systems, not just APIs

• Define and enforce best practices, standards, and patterns for AI development across teams.

• Explore and research advanced AI technologies and integrate with external APIs and services.

• Lead and mentor other developers, providing guidance and expertise on complex projects.

What You’ll Bring

• BSc in Computer Science or related degree.

• 5+ years of experience in building customer - facing full-stack applications.

• 2+ years of hands-on experience with Python - A must!

• Deep understanding of large language model (LLM) core concepts and usage, including prompting and reasoning strategies - A must!

• Strong experience designing and building end-to-end AI systems, from data ingestion and orchestration to model integration and production deployment.

• Proficiency with SQL and NoSQL databases.

• Experience with Node.js, particularly Nest.js.

• Experience in designing agentic workflows - an advantage.

• Experience with Langchain or Langraph - an advantage.

• Excellent spoken and written English skills.

• Proactive, collaborative mindset with a passion for impacting engineering teams, products, and customers.

At Nexxen, we value our differences, varied experiences, and collective contribution. We know that not everyone takes the same career path, so if you don’t match this job description perfectly, don’t worry! We would rather see your application than risk missing out on your potential to make an impact.

What if I have any questions before I apply?

All applications need to be submitted online, however, to discuss any adjustments you may require ahead of submitting your application, please email [email protected]

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