AI Software Engineer (Senior/Staff)

J
JokoE-commerce AI
This position is remote-friendly (France and Spain).Full-TimeSenior
Salary€76.3K - €174.6K
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Job Details

Languages
English
Experience
5+ years
Required Skills
Full Stack DevelopmentSoftware EngineeringLangChain

Requirements

  • 5+ years of software engineering experience.
  • Proven track record building and shipping production systems.
  • Experience at a senior or staff level owning ambitious projects.
  • Deep familiarity with agentic frameworks such as LangChain or LangGraph.
  • Familiarity with LLM observability tools like LangFuse.
  • Experience working with LLM APIs and AI evaluation tooling.
  • Strong technical background with an AI/ML foundation.
  • Full-stack comfort covering logic, infrastructure, and frontend prototyping.
  • Ability to methodically tackle technical challenges like latency and model hallucinations.
  • Fluency in English (written and spoken).

Responsibilities

  • Own the architecture and continuous evolution of the Joko AI agentic system.
  • Design and run robust evaluation frameworks to measure performance and catch regressions.
  • Expand AI capabilities by integrating tools like web search, vector search, and catalog lookups.
  • Manage the ingestion, standardization, and enrichment of massive product catalogs.
  • Leverage user behavior and transaction data to build a highly personalized shopping experience.
  • Prototype new features and iterate quickly based on real user feedback.
  • Fine-tune models for quality, latency, and cost-efficiency in a production environment.
  • Collaborate with the Product team to define and ship innovative AI-assisted shopping experiences.
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€76.3K - €174.6K
Apply Now