Junior Data / ML Analyst

Within the Operations team,The Junior Data / ML 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 control

• Collect, organize, and review data to check for quality and accuracy according to established guidelines.
• Perform data enhancements and fixes using SQL, Regex and internal tools.
• Execute weekly quality checks for data deliveries, following documented procedures.

Data Processing & Analyses

• Perform ML model retraining, monitoring and analyzing performances, and bring enhancements.
• Identify and fix data classification or branding issues.
• Consistency in handling daily, high-volume operational tasks.

Collaboration & Communication

• Work closely with your team member by sharing information and support each other.
• Clearly and accurately report on your progress, completed tasks and any blockers.
• Participate in regular feedback sessions and performance reviews.

Compliance & Confidentiality

• Follow and adhere to all global processes and team best practices.
• Maintain strict confidentiality of client and internal data.
• Meet internal standards and productivity targets.

General & Administrative Duties

• Participate in company-organized training sessions.
• Report system issues that may impact workflow.
• Support team, department, and organizational tasks as needed.

Education

• B.S. / M.S. in business analytics, data science, mathematics or statistics

Technical Skills

• Basic knowledge of SQL (e.g., from university projects, internships, or online courses).
• Familiar with Machine Learning.
• Strong written and spoken English (B2/C1 level is essential for remote management).
• Proficient in MS Excel or Google Sheets.

Key Competencies:
Analytical & Technical

• Attention to detail and high standards for quality and accuracy, while applying pragmatic judgment to balance effort and value.
• Ability to understand and analyze data.
• Logical thinking and problem-solving skills.

Communication & Collaboration

• Strong interpersonal and communication skills.
• Ability to build productive working relationships.
• Active listening skills and ability to accept and apply feedback.

Integrity & Accountability

• Maintains confidentiality and acts with integrity.
• Takes personal responsibility and acknowledges mistakes.

Productivity & Initiative

• Comfortable with routine and high-volume repetitive tasks.
• Results-driven with persistence and follow-through.
• Works effectively under deadlines and tracks progress.

Benefits:

• 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 centre and easily accessible from any point by public transportation.

#LI-SG1

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://www.nielseniq.com/global/en/ai-safety-policies.

Our Benefits

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

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

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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