Data / ML Analyst

TL;DR

Data / ML Analyst (Data Analytics): Ensuring the quality and enhancement of client data deliveries with an accent on SQL-based investigations, regex-driven fixes, and ML model performance monitoring. Focus on maintaining data accuracy, resolving complex classification issues, and collaborating with international teams to support reporting processes.

Location: Must be based in Sofia, Bulgaria (Hybrid: 3 days remote, 2 days in office).

Salary: €1,550 – €1,850 monthly.

Company

NIQ is a global consumer intelligence leader providing comprehensive insights into buying behavior through advanced analytics and state-of-the-art platforms.

What you will do

• Monitor and investigate data quality issues, implementing fixes using SQL and Regex.
• Manage weekly quality check processes to ensure accurate and timely data delivery.
• Retrain and monitor ML models, identifying opportunities for performance enhancements.
• Resolve complex data classification and branding ambiguities.
• Collaborate with team members and provide status updates to management in Paris.

Requirements

• 2-3+ years of experience in data operations, data quality, or business analysis.
• Strong proficiency in SQL for data extraction and manipulation.
• Practical experience writing and maintaining Regex.
• Understanding of data pipelines and the impact of data quality on ML models.
• English: C1 level is essential.
• Strong analytical and logical problem-solving skills.

Culture & Benefits

• Hybrid working model with flexible hours.
• Additional medical and life insurance.
• Food vouchers and access to LinkedIn Learning.
• Additional 3 days of paid leave.
• Office located near the city center with bike parking.