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Nexxen

Platform AI Engineer

Nexxen

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

Posted 4/13/2026full-timeTel Aviv • 🇮🇱 IsraelMid-LevelSeniorWebsite

Tech Stack

Tools & technologies
JavaScriptNode.jsNoSQLPythonSQL

About the role

Key responsibilities & impact
  • 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.

Requirements

What you’ll need
  • BSc in Computer Science or related degree.
  • 4+ 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.

Benefits

Comp & perks
  • Flexible advertising, unified by data.
  • Health insurance.
  • Professional development.
  • Paid time off.
  • Remote work options.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
Pythonlarge language model (LLM)AI systemsSQLNoSQLNode.jsNest.jsLangchainLangraphfull-stack applications
Soft Skills
leadershipmentoringcollaborationcommunicationproblem-solvingproactive mindsetpassion for engineeringguidanceexpertiseinnovation
Certifications
BSc in Computer Science