Full-Time

Senior ML/AI Engineer

Wizeline

Wizeline

1,001-5,000 employees

Global software engineering and digital transformation

No salary listed

Sant Cugat del Vallès, Barcelona, Spain

In Person

Category
Software Engineering (1)
Required Skills
LLM
Python
Machine Learning
LangGraph
Observability
REST APIs
LangChain
Requirements
  • 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
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
Desired Qualifications
  • 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

Wizeline is a global technology services firm helping organizations accelerate digital transformation and build software products. It delivers customized solutions through project-based fees, long-term contracts, or consulting, with engagement models like embedded Studio teams, autonomous Project pods, and flexible staff augmentation. Services include software development, AI, cloud and data engineering, and UX design, focusing on modernizing core tech and enabling data-driven decisions. Its goal is to help clients build better products faster, expand their technical capabilities, and grow their teams, supported by Wizeline Academy and regional engineering hubs.

Company Size

1,001-5,000

Company Stage

Series B

Total Funding

$62.1M

Headquarters

Guadalajara, Mexico

Founded

2013

Simplify Jobs

Simplify's Take

What believers are saying

  • European expansion capturing significant new client wins across cloud and AI services.
  • Simon Bucknall as CSO drives global sales strategy with established enterprise relationships.
  • Gen AI Live News Segmenter on AWS opens new revenue stream in media.

What critics are saying

  • EPAM Systems' 50,000+ engineer base erodes Europe expansion market share within 18 months.
  • Globant leverages former CMO Fausta Ballesteros' relationships to outcompete in Latin America deals.
  • CDPQ profitability mandates force Guadalajara cost cuts, risking talent exodus to Mexican competitors.

What makes Wizeline unique

  • AI-native product engineering with nearshoring model across Mexico, Vietnam, and expanding Europe.
  • Specialized Marketing AI solution for regulatory-heavy, content-intensive campaigns in media and fintech.
  • Integrated data automation via Ascend.io partnership accelerates modernization for Fortune 500 clients.

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Benefits

Health Insurance

Wellness Program

Flexible Work Hours

Remote Work Options

Paid Vacation

401(k) Retirement Plan

401(k) Company Match

Professional Development Budget

Conference Attendance Budget

Stock Options

Company Equity

Phone/Internet Stipend

Home Office Stipend

Family Planning Benefits

Fertility Treatment Support

Paid Holidays

Paid Sick Leave

Hybrid Work Options

Remote Work Options

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

1%

2 year growth

7%
MarTech360
Aug 14th, 2025
MarTech360'S Weekly News Roundup With Interpublic Group, Sprout Social, NiCE, Nielsen, Speechify And More!

Wizeline has launched Marketing ^ AI(TM), a next-generation solution designed to transform marketing and content operations for organizations managing large-scale, content-intensive campaigns under complex regulatory and compliance requirements.

Wizeline
Feb 20th, 2025
Wizeline Appoints Simon Bucknall as Chief Sales Officer

NEW YORK, NY - Feb. 20, 2025 - Wizeline, a global AI-native product engineering company, today announced the appointment of Simon Bucknall as Chief Sales Officer, effective immediately.

GlobeNewswire
Jul 31st, 2024
Wizeline Announces Strong Q2 Momentum, Surpassing Key Benchmarks

European Growth Strategy: Building on significant client growth, Wizeline is rapidly expanding its operations in Europe.

Wizeline
May 7th, 2024
Wizeline and Ascend.io Join Forces to Unleash AI-Powered Data Automation

By integrating Ascend.io's automation technologies with Wizeline's AI expertise & development services, the partnership expedites the movement to modern data architectures, reducing the time to value for digital transformation initiatives.

Wizeline
Apr 23rd, 2024
Wizeline Showcases Generative AI-powered Live News Segmenter at NAB Show 2024 with AWS

Wizeline, a leading AI-powered software engineering company, unveiled a groundbreaking new product, the Gen AI Live News Segmenter on AWS, at the NAB Show in Las Vegas.