Senior ML/AI Engineer

wizeline· Software Engineering
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📍 Barcelona - Spain

About this role

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.

Frequently Asked Questions

Is the salary disclosed for the Senior ML/AI Engineer position at wizeline?
The salary for this Senior ML/AI Engineer role at wizeline is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior ML/AI Engineer position at wizeline located?
This Senior ML/AI Engineer role at wizeline is based in Barcelona - Spain. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Senior ML/AI Engineer at wizeline belong to?
This Senior ML/AI Engineer position is part of the Software Engineering department at wizeline. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior ML/AI Engineer position at wizeline?
Click the "Apply Now" button on this page. You will be redirected to wizeline's official application portal hosted on greenhouse where you can submit your application directly.
When was the Senior ML/AI Engineer job at wizeline posted?
This Senior ML/AI Engineer position at wizeline was posted on Apr 8, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior ML/AI Engineer
wizeline
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