Tanja Adžić

Data Analyst with a background in operations, reporting, and customer support

I am a data-focused professional with experience in data analysis, reporting, operations, and customer support. My background combines hands-on work with Excel/Google Sheets, SQL, Python, and data visualization, as well as experience maintaining accurate records, tracking KPIs, improving workflows, and supporting business decision-making. In previous roles, I worked on data quality, process improvement, reporting, and operational coordination, while my current experience in customer and partner support has strengthened my communication, problem-solving, and cross-functional collaboration skills. I enjoy turning complex or messy information into clear insights, structured processes, and practical solutions that support both business performance and user experience.

Portfolio

A selection of case-study projects showcasing my work in data analysis, KPI investigation, data cleaning, predictive analytics, and business-focused reporting.

Operational KPI Performance Investigation

Analyzed delivery KPIs to identify performance drops, explain root causes, and recommend real-time operational improvements.

Customer Targeting with Predictive Analytics

Built a predictive model to identify high-potential customers and support targeted business outreach.

Email Campaign Performance Analysis

Reviewed campaign metrics to compare performance, identify trends, and summarize actionable marketing insights.

Healthcare Data Migration & Validation

Reviewed, cleaned, and prepared client and appointment data for accurate migration into a new system.

Vehicle Data Predictive Analysis

Applied statistical analysis and predictive modeling to vehicle datasets, with clear technical interpretation.

Data Science POC for Digital Marketing

Created a proof-of-concept roadmap connecting data science methods with digital marketing use cases.

Professional Experience

Partner Support Representative / Customer Care Representative @ TaskUs, Serbia
July 2024 - Present

Currently in training for partner support operations, including project-specific workflows, internal procedures, escalation paths, and quality expectations.
Delivered customer support across chat, WhatsApp, email, and phone while following internal procedures and service standards.
Handled booking-related issues, pre-booking inquiries, technical/platform questions, and partner-related communication.
Maintained accurate internal records and supported smooth coordination between customers, partners, and internal teams.
Managed sensitive information carefully while respecting privacy, compliance, and confidentiality requirements.
Applied calm communication, prioritization, and problem-solving skills to support customer satisfaction and operational consistency.

Data Specialist & Analyst @ Mental Health Center Singularitet, Serbia
June 2022 - June 2024

Digitized and structured historical client and business records while maintaining accuracy, consistency, and privacy standards.
Performed data standardization, validation, and quality checks to improve reliability of internal records.
Tracked and reported relevant business metrics, KPIs, schedules, payments, and operational trends.
Used Excel/Google Sheets, SQL, Python, and reporting tools to organize data and support better decision-making.
Identified process gaps and supported automation of administrative tasks to reduce manual workload and improve efficiency.

Co-Founder / Operations & Data Administrator @ Fabrika Social Accelerator and Coworking, Serbia
February 2015 - December 2018

Managed customer and business databases, ensuring data accuracy and integrity.
Defined business goals and tracked operational metrics for performance measurement.
Coordinated administrative workflows, team activities, customer communication, and daily operations.
Used business insights to support planning, service improvement, and client acquisition.

Business English Language Teacher
January 2014 - January 2021

Delivered business English training focused on professional communication, role-play, mock interviews, and workplace scenarios.
Adapted communication style to different learners, industries, and professional goals.
Developed strong coaching, feedback, and explanation skills relevant to QA and teammate development.