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Wizeline

Senior ML/AI Engineer

Wizeline
Spain · Full-time · Mid-Senior
We Are

Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.

With the right people and the right ideas, there’s no limit to what we can achieve

Are you a fit?

Sounds awesome, right? Now, let’s make sure you’re a good fit for the role:

Key Responsibilities

  • Collaborate with data scientists and engineers to orchestrate LLMs and tools into complex AI workflows.
  • Implement optimized vector storage and indexing systems for NLP.
  • Develop tools and frameworks for prompt management, automated evaluations, and observability.
  • Monitor and improve agentic systems performance for accuracy and efficiency.
  • Provide ongoing support, troubleshoot issues, and implement updates for ML solutions
  • Build and maintain data processing pipelines for high volumes of structured and unstructured data.
  • Integrate third-party AI APIs (internal and external) to extend the functionality of systems.
  • Stay updated on GenAI, NLP, ML, and IR technologies, incorporating best practices and leveraging cloud infrastructure for efficiency.
  • Build and extend internal products on top of the LangChain ecosystem (LangGraph, LangSmith) to support prompt management, evaluation, and agent orchestration across the team.

Must-have Skills

  • Bachelor's or Master's degree in Computer Science, Engineering, Data Science, or a related STEM field or equivalent work experience.
  • 4+ years of industrial experience in a machine learning engineering or data engineering role.
  • Strong programming skills in Python and/or another high-level language commonly used in machine learning.
  • Experience deploying LLMs, implementing automated evaluation pipelines (LLM-as-a-judge), and architecting multi-agent systems that utilize tool-calling and long-term memory to solve non-linear problems.

Nice-to-have

  • AI Tooling Proficiency: Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows.
  • Familiarity with cloud-based infrastructure and services (e.g., AWS and GCP), Docker, and the Git version control system
  • Familiarity with consuming and integrating APIs in a reliable and secure manner.

What We Offer

  • A High-Impact Environment
  • Commitment to Professional Development
  • Flexible and Collaborative Culture
  • Global Opportunities
  • Vibrant Community
  • Total Rewards
  • Specific benefits are determined by the employment type and location.

Find out more about our culture here.

Key Skills

Ranked by relevance

ai cloud machine learning ai tools storage python docker git aws gcp
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Country Guide

Spain

Strong city options with excellent lifestyle

Posted
Apr 09, 2026
Type
Full-time
Level
Mid-Senior
Location
Barcelona
Company
Wizeline

Industries

IT Services IT Consulting

Categories

Engineering Information Technology

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