Data / ML Analyst

Posted 2 Days Ago
Be an Early Applicant
Sofia, Sofia-grad, BGR
Hybrid
Junior
Big Data • Information Technology
The world's leading consumer intelligence company.​
The Role
Responsible for maintaining and improving client data quality, validating enhancements with SQL and Regex, investigating classification issues, and ensuring accurate, timely data delivery. The role also retrains and monitors machine learning models, analyzes performance, resolves complex data problems, and supports reporting workflows. Success requires strong analytical, problem-solving, communication, and collaboration skills, along with attention to detail and proficiency in data operations.
Summary Generated by Built In
Job Description

Within the Operations team, ML / Data Analyst is responsible for the quality and enhancement of the data that we deliver to external clients. The role ensures that client data is distributed according to contractual agreements and quality standards, while also supporting internal teams and systems involved in the reporting process.

Key Responsibilities:
Data Quality & Operational Excellence

  • Proactively monitor and investigate data quality issues, handling complex cases independently.
  • Implement and validate data enhancements, fixes using SQL, Regex, and internal tools.
  • Take ownership of the weekly quality check processes, ensuring data deliveries are consistently accurate and on time.

Data Processing & Analysis

  • Perform ML model retraining, monitoring and analyzing performances, and bring enhancements.
  • Investigate and resolve complex or ambiguous data classification and branding issues.
  • Efficiency in handling daily, high-volume operational tasks.

Collaboration & Communication

  • Actively work with your team member by sharing information, support each other and build a cohesive team environment.
  • Proactively update your manager in Paris on task status, potential risks, or blockers before they become major issues.
  • Serve as a reliable and solutions-oriented contact point

Requirements:

  • 2+ years of professional experience in a data operations, data quality, or business analyst role.
  • Strong proficiency in SQL for data extraction, manipulation, and analysis.
  • Practical experience writing and maintaining Regex.
  • A clear understanding of data pipelines and how data quality impacts ML models.
  • Strong written and spoken English (C1 level is essential).
  • Strong attention to detail and a passion for data accuracy, while applying pragmatic judgment to balance effort and value.
  • Strong analytical skills with a talent for investigating the root cause of data issues.
  • Proven logical thinking and problem-solving abilities.
  • Strong interpersonal and communication skills.
  • Proven ability to build productive working relationships.

We offer:

  • Food vouchers € 62. 
  • Additional Medical Insurance, incl Prophylactics, Outpatient care, Inpatient care, еxpenses for medications and medical products. 
  • Life Insurance. 
  • Multisport card (self-funded by the employee).  
  • A Hybrid model of working: 3 days of the week you work from home (home office), 2 days from the office. 
  • Additional paid leave of 3 days in case of no overdue leave days from previous year. 
  • Free access to LinkedIn Learning platform. 

In addition:

  • Flexible working hours and home office.
  • Eco friendly travelers are welcome to the office – parking places for bikers.
  • Sofia office is located close to the city center and easily accessible from any point by public transportation.

 

 

#LI-SG1

Additional Information

Our Benefits

  • Flexible working environment
  • Volunteer time off
  • LinkedIn Learning
  • Employee-Assistance-Program (EAP)

NIQ may utilize artificial intelligence (AI) tools at various stages of the recruitment process, including résumé screening, candidate assessments, interview scheduling, job matching, communication support, and certain administrative tasks that help streamline workflows. These tools are intended to improve efficiency and support fair and consistent evaluation based on job-related criteria. All use of AI is governed by NIQ’s principles of fairness, transparency, human oversight, and inclusion. Final hiring decisions are made exclusively by humans. NIQ regularly reviews its AI tools to help mitigate bias and ensure compliance with applicable laws and regulations. If you have questions, require accommodations, or wish to request human review were permitted by law, please contact your local HR representative. For more information, please visit NIQ’s AI Safety Policies and Guiding Principles: https://nielseniq.com/global/en/info/niqs-ai-safety-policies/

About NIQ

NIQ is the world’s leading consumer intelligence company, delivering the most complete understanding of consumer buying behavior and revealing new pathways to growth. In 2023, NIQ combined with GfK, bringing together the two industry leaders with unparalleled global reach. With a holistic retail read and the most comprehensive consumer insights—delivered with advanced analytics through state-of-the-art platforms—NIQ delivers the Full View™. NIQ is an Advent International portfolio company with operations in 100+ markets, covering more than 90% of the world’s population.

For more information, visit NIQ.com

Want to keep up with our latest updates?

Follow us on: LinkedIn | Instagram | Twitter | Facebook

Our commitment to Diversity, Equity, and Inclusion

At NIQ, we are steadfast in our commitment to fostering an inclusive workplace that mirrors the rich diversity of the communities and markets we serve. We believe that embracing a wide range of perspectives drives innovation and excellence.  All employment decisions at NIQ are made without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, genetic information, marital status, veteran status, or any other characteristic protected by applicable laws. We invite individuals who share our dedication to inclusivity and equity to join us in making a meaningful impact. To learn more about our ongoing efforts in diversity and inclusion, please visit the https://nielseniq.com/global/en/news-center/diversity-inclusion

Skills Required

  • 2+ years of professional experience in data operations, data quality, or business analysis
  • Strong proficiency in SQL for data extraction, manipulation, and analysis
  • Practical experience writing and maintaining Regex
  • Understanding of data pipelines and how data quality impacts machine learning models
  • Strong written and spoken English at C1 level
  • Strong attention to detail and commitment to data accuracy
  • Strong analytical, logical-thinking, and problem-solving abilities
  • Strong interpersonal and communication skills
  • Ability to build productive working relationships

NielsenIQ Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about NielsenIQ and has not been reviewed or approved by NielsenIQ.

  • Parental & Family Support Public materials highlight paid parental leave in the U.S., with additional paid disability time for birth parents. Parental leave is positioned as a standout element of the package.
  • Leave & Time Off Breadth Unlimited or flexible PTO is referenced alongside paid holidays and sick leave, providing broad time-off options in many roles. Actual use can vary by team norms, but the formal breadth is notable.
  • Flexible Benefits Work-from-home and hybrid arrangements are supported in many roles, with remote-friendly practices described across business lines. Flexibility is frequently positioned as a meaningful advantage.

NielsenIQ Insights

Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: Chicago, IL
40,000 Employees
Year Founded: 1923

What We Do

NielsenIQ is the industry leader in global measurement and data analytics, and the most trusted source for retail and consumer intelligence. We deliver the complete truth to retailers, manufacturers, and our partners through our comprehensive data sets and powerful insights. We enable businesses to make critical decisions confidently, accelerating growth and optimizing performance.

Why Work With Us

We empower companies around the world to make bold decisions and transform their business with trusted data, solutions, and insights. Joining NielsenIQ means experiencing countless learning opportunities and gaining numerous pathways for growth.

Gallery

Gallery

Similar Jobs

Mondelēz International Logo Mondelēz International

Manager, HR Strategy, Plant People Lead

Big Data • Food • Hardware • Machine Learning • Retail • Automation • Manufacturing
Remote or Hybrid
Sofia, Sofia-grad, BGR
90000 Employees

Pfizer Logo Pfizer

Director R&D EHS Program Lead

Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Biotech • Pharmaceutical
In-Office or Remote
36 Locations
121990 Employees
177K-294K Annually

Mondelēz International Logo Mondelēz International

Buying Channel Enablement Lead

Big Data • Food • Hardware • Machine Learning • Retail • Automation • Manufacturing
Remote or Hybrid
5 Locations
90000 Employees
3K-3K Annually

Mondelēz International Logo Mondelēz International

o9 Change Readiness Lead

Big Data • Food • Hardware • Machine Learning • Retail • Automation • Manufacturing
Remote or Hybrid
11 Locations
90000 Employees

Similar Companies Hiring

Standard Template Labs Thumbnail
Artificial Intelligence • Information Technology • Software
New York, NY
25 Employees
NODA AI Thumbnail
Artificial Intelligence • Information Technology • Software • Cybersecurity
Sydney, AU
54 Employees
Golden Pet Brands Thumbnail
Digital Media • eCommerce • Information Technology • Marketing Tech • Pet • Retail • Social Media
El Segundo, California
178 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account