Dijana Cosic

Company Overview: WEALTHENGINE is a data services company that provides insights and analytics for commercial and nonprofit clients

• Managed production team responsible for ETL, data processing, non-bespoke SQL query builds, and data delivery
• Successfully increased productivity by 271% while working remotely (last 4 years)
• Reached maximum record production in the company (by 238%)
• Successfully delivered over 150 million records in over 800 projects for hundreds of commercial (ex: American Honda, Tiffany, Restoration Hardware, Aetna, Cigna, etc.) and nonprofit clients (ex. UNHCR, Medstar, University of Texas etc.)
• Managed and manipulated data using: PL/SQL, SQL, SQL Developer, SQL Plus and Python
• Analyzed millions of data points housed in and across multiple Oracle data warehouses
• Deployed data quality assurance systems, developed and implemented company policies, technical procedures, and standards for preserving integrity, quality, and security of data
• Successfully implemented companies' policies and standards to Altrata
• Coordinated with clients to develop project requirements and technical specifications in over 200 projects
• Managed projects from beginning to end while coordinating internal departments (7 geographically distributed teams worldwide) with external parties
• Coordinated inter-departmental data sharing efforts
• Managed Jira and Freshdesk tickets from Customer Service and Engineering teams
• Documented various Data Services processes in form of data flow diagrams and shared knowledge of WealthEngine processes with other teams
• Successfully learned data mining process in WealthEngine and delivered modelling project for healthcare provider

Company Overview: University of Zagreb is the oldest and biggest university in South-Eastern Europe

• Taught a lab in Enterprise Information Systems (SAP, Navision) and Informatics (Advanced Microsoft Office, Google Tools and Wibley) to over 100 students per semester
• Monitored students' performance; prepared, administered, and evaluated exams

Company Overview: The EOS Group is one of the leading international providers of customized financial services present in Europe and USA

• Automated production of reports in SPSS Moduler and Excel spreadsheet functions. for daily, weekly and monthly snapshots of current debt payments, operations and customer data
• Estimated prices for portfolios that were considered for purchase
• Automated business processes and created daily dashboards for multiple departments
• Managed critical business data in Toad and SQL
• Created various Excel documents to assist with pulling metrics data and presenting information to stakeholders for concise explanations of best placement for needed resources.

Company overview: leading independent marketing research agencies in Croatia (Hendal d.o.o.) and Slovenia (Valicon d.o.o.)

• Tested concepts, products and services, names, packaging, price-positioning and assessment of volume/market on hundreds of survey projects utilizing CATI, F2F, WEB and paper data collection technologies to identify emerging trends, enabling clients to adapt and stay ahead in competitive industries.
• Designed surveys using internally developed tools
• Simultaneously managed multiple time-sensitive projects (more than 20 at times)
• Collaborated with researchers in tabulating and plotting various statistics in SPSS and Excel
• Conducted award-winning study using company's Neuromarketing tool which promoted company
• Supervised and coordinated data collection and data processing for national and regional projects that were conducted by geographically distributed teams
• Managed a team of 20 interviewers in exit polling of Croatian national election, collected and cleaned data for real time outcome projections
• Conducted QA procedures, including inspecting surveys for errors, and verifying database consistency

Company Overview: Tele2 is a Swedish telecom operator present in 12 European countries

• Conducted statistical analysis of customer behavior using descriptive statistics, trends, regression and predictive analysis under different scenarios, churn prediction using data mining, data modeling, business intelligence gathering, trending and benchmarking wile processing large volumes of raw data into actionable intelligence products.
• Supported decision making for high-priority, enterprise initiatives including the development of a customer relationship management tool for real-time analysis of customer data
• Conducted detailed data analysis for customer retention (resulted in 5% yearly customer growth), creation of new telecom tariffs, marketing campaign implementation and evaluation
• Produced multi-source intelligence periodic reports and reports on request for the company's executives, including the CEO and headquarters in Stockholm, Sweden
• Team leader for data preparation projects that included data cleaning and coding, verification of data integrity and accuracy