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Zorana Djurdjevic

Zorana Djurdjevic

Freelancer

Technologies

My Portfolio Highlights

My New Track

Data Scientist in R (previously Data Scientist Professional with R)

open to work in data analytics

My Work

Take a look at my latest work.

course

Writing Functions in R

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Associate Data Scientist in R (previously Data Scientist with R)

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Introduction to Relational Databases in SQL

course

Case Study: Exploratory Data Analysis in R

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Introduction to Importing Data in R

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Intermediate Importing Data in R

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Exploratory Data Analysis in R

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Correlation and Regression in R

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Introduction to Data in R

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Unsupervised Learning in R

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Intermediate SQL Queries

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Data Manipulation with dplyr

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Introduction to Writing Functions in R

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Introduction to Data Visualization with ggplot2

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Intermediate Data Visualization with ggplot2

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Joining Data with dplyr

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Machine Learning for Business

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Cleaning Data in R

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Reporting with R Markdown

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Introduction to Statistics in R

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Introduction to Regression in R

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Intermediate Regression in R

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Sampling in R

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Hypothesis Testing in R

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Data Communication Concepts

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Supervised Learning in R: Classification

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Introduction to SQL

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Intermediate SQL

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Joining Data in SQL

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Introduction to Git

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Supervised Learning in R: Regression

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Statistics Fundamentals

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SQL for Joining Data

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Introduction to the Tidyverse

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Working with Dates and Times in R

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Introduction to R

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Reporting with R Markdown

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Experimental Design in R

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Intermediate R

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Cleaning Data in R

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Data Analyst

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

My Work Experience

Where I've interned and worked during my career.

DataCamp | Jan 2022 - Present

Data Analytics&Science Degrees Studies

Obtained degrees: - Data Analyst with R (9 courses degree) - Data Scientist with R (22 courses degree) - Data Scientist Professional with R (28 courses degree)
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Ubiqum Code Academy | Jan 2018 - Jan 2019

Data Analytics and Machine Learning Bootcamp

Using data to define and lead projects and product deliverables, provide insights and predictions: - Industry and data analysis - Predictive modeling - Machine learning - Big data - Programming in R and Python - Agile methodology - AWS - SQL Program description: "Acquiring the complex skills of a 21st-century business strategist by working through a series of realistic projects. In the Data Analytics & Machine Learning program, you learn how to apply methods of data analytics to clean and prepare a data set, learn about data mining using R and Python, and learn and use the most common Machine Learning algorithms to model complex business problems. You also learn to build and deliver convincing presentations to recommend your ideas"

Booking.com | Sep 2016 - Aug 2017

Global Manager Partner Services

- Led the global product support teams situated in Amsterdam/Europe, Asia and USA, for all products and features company wide - Company main point of contact for bugs/issues investigation and prioritisation or product questions for both the local offices and HQ teams and departments - Owner and main user of multiple products technical configurations bulk tools - Working closely with development teams to resolve bugs and optimise product features and processes, as well as with stakeholders throughout the company, from customer service and local offices to the marketing, finance, content, development departments and management of all levels - Zendesk global ticketing and knowledge sharing system - Data analysis and research projects - Products features rollouts from HQ to the local teams, main point of contact for support

Booking.com | Apr 2015 - Sep 2016

Global Support Manager Payments Platform

- Led the global highly driven product support team of payments specialists using agile&scrum methodology - Worked closely with development teams to investigate and prioritise bug and issue fixes and optimise processes and product features - Main point of contact for payments product questions, suggestions or technical issues for both the local offices and HQ global internal teams and users (Account managers and commercial teams, Credit control, Customer service, Finance, Operations, Technical support, Content, Product&Development teams etc.) - Global payments product features rollouts, main point of contact for payments product advice and communication strategy towards internal users, in cooperation with the commercial and marketing teams - Owner of payments technical bulk and access tools - Owner of bulk processes for payments, payments technical configurations settings and flavours - Product data analysis &research projects for the payments teams and management - Owned and managed internal knowledge base, updates and ticketing system for the global payments platform product (Wiki, Jira, Zendesk)

Booking.com | Jan 2015 - Apr 2015

Global Payments Specialist

- Payments platform: development and product support specialist, local offices internal support (account managers, pricing managers, local project managers) - Technical support: technical bugs/issues investigation, prioritisation and mediation, global and technical process optimisations - Technical payments configuration bulk changes and set up management - New payments product features roll outs and local offices support - Main point of contact for all internal users, both commercial and technical - Payments data analysis&research for the product and development teams and management

Booking.com | Aug 2014 - Jan 2015

Business Analyst - Strategic Partnerships

- Data retrieval, clean up and and industry analysis/buckets definition of strategic partners - Implementation of the new system of strategic partners per buckets based on an extensive research and analysis of the gathered data - Working closely with the product, commercial and support teams to define goals and deliverables

Booking.com | Aug 2013 - Aug 2014

Partner and Customer Service Specialist

- Point of contact for the accommodation partners for technical issues and support on internal systems, availability set up and management - Point of contact for bookers for the reservations, accommodation inquires and complaints - Complaints investigation and mediation for accommodation partners and customers

My Education

Take a look at my formal education

Data Scientist with R DataCamp | 2023
Data Scientist Professional with R DataCamp | 2023
Data Analyst with R DataCamp | 2023
Data Analyst&ML in Data analytics with Machine LearningUbiqum Boot Camp
Master of Economics in International Trade and FinanceFaculty of Economics, University of Belgrade, Serbia

About Me

Zorana Djurdjevic

intrigued by discovering the world through data

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