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Jelena Mitrovic

Jelena Mitrovic

Senior Analyst

JustAnswer

Technologies

My Portfolio Highlights

My New Course

Introduction to ChatGPT

My New Course

Introduction to ChatGPT

Data Scientist and Researcher

My Work

Take a look at my latest work.

course

Understanding Machine Learning

course

Introduction to ChatGPT

course

Understanding Artificial Intelligence

course

Understanding Machine Learning

My Certifications

These are the industry credentials that I’ve earned.

Other Certificates

Udacity Data Analyst Nanodegree

Tableau Tableau Desktop Specialist

Python Developer PCEP - Certified Entry-Level Python Programmer

SAS SAS Certified Specialist: Base Programming Using SAS 9.4

DataCamp Course Completion

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

Courses

Introduction to ChatGPT
Understanding Artificial Intelligence
Understanding Machine Learning
Large Language Models (LLMs) Concepts

My Work Experience

Where I've interned and worked during my career.

JustAnswer | Jun 2022 - Present

Senior Analyst

• Designing, monitoring, and maintaining the transformer-based multi-layered machine learning models (e.g. BERT) used for calculating our core metrics, and identifying the root causes for metric movements. • Leveraging NLP models in Python to analyze the customer sentiment and intent to provide a better experience with the platform. • Ensuring the ongoing maintenance and improvement of the custom-built payout model. • Working with large and complex data sets to synthesize and derive practical insights using strong SQL knowledge. • Building and maintaining PowerBI dashboards using the internal database to help the team better track expert performance, customer satisfaction, and engagement. • Translating analytics results into insightful business recommendations and communicating these insights with all levels of management. Correlations between depression scores and neuronal markers on MR spectroscopy in HIV-positive individuals on combined antiretroviral therapy Executive Functions Rating Scale and Neurobiochemical Profile in HIV- Positive Individuals Correlation of neurocognitive performance and affective status with neurobiochemical profile in HIV- positive subjects Vigins’ interpersonal circumplex measured IPIP-IPC scales: structure and convergent validity (Viginsov interpersonalni cirkumpleks meren IPIP-IPC skalama: struktura i konvergentna validnost) • Partnering with product managers and engineers to improve the customer experience in the post-funnel stage and increase customer satisfaction.
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Ninamedia | Jul 2020 - Jun 2021

Data Analyst

• Led three projects by managing data analysis process, project deliverables, and resources • Performed exploratory data analysis, data processing, data mining, and statistical modeling within projects’ frameworks on databases of 1K+ data points in SPSS, R, and Python • Analyzed data and forecasted product trends, customer behavior, and market challenges to provide business insights, influence strategic direction, and provide analytical solutions for business growth • Reduced data preparation time tenfold and automated workflows by writing reusable pipelines in Python • Contributed to the company’s revenue by acquiring new clients using strong communication skills

Various | Dec 2016 - Jul 2020

Freelance

• Leveraged knowledge of Google AdWords and LongTail Pro to conduct in- depth market research and generate data-driven insights to influence decision- making. • Charted the successful development of engaging content and high-quality websites using WordPress. • Maximized website traffic and overall visibility by utilizing Google Analytics to enhance both on-site and off-site SEO.

Ninamedia | Jun 2019 - Sep 2019

Data Analyst

• Applied descriptive and inferential statistics (chi-square test, t-test, ANOVA, linear and logistic regression) on large structured and unstructured datasets to identify trends, relationships, and differences • Generated in-depth reports for clients to outline data, trends, and changes, utilizing figures and tables

University of Rochester | Oct 2017 - Oct 2018

Graduate Intern

Full-time Internship Mt. Hope Family Center "Project TRUST" • Gathered high-quality data through in-person questionnaires, cognitive testing, EEGs, eye-tracking, and biophysiological technology working with 3 1/2 year-old children and their mothers in order to determine how maltreatment affects the formation of (mis)trust in children. • Developed data-driven insights and conclusions by analyzing data for sample sizes of 600+ participants and utilizing descriptive and inferential statistics in SPSS.

University of Novi Sad | Apr 2015 - Jul 2017

Research Assistant

Clinical Psychology Team, Faculty of Philosophy • Analyzed data using SPSS

University of Novi Sad | Jun 2014 - Jul 2017

Research Assistant

Center for Behavioral Genetics, Faculty of Philosophy "Heredity, Environmental and Psychological Factors of Mental Health – Twin Study" • Designed and facilitated surveys after identifying key metrics aligned with the project goals • Generated impactful results using the statistical analysis on 90+ data with 500+ variables in SPSS • Co-authored 13 conference papers and scientific publications

Clinical Center of Vojvodina | Dec 2015 - May 2017

Research Assistant

Imaging in Early Diagnosis of Neurocognitive Disorders in HIV+ Individuals" • Facilitated in-person questionnaires and neurocognitive tests to gather data by working with HIV patients, to determine the relationship between neurocognitive parameters, MR Spectroscopy results, and the treatment • Gained experience utilizing regression models and MANOVA (90-500 participants with 500+ variables) in SPSS and R

My Education

Take a look at my formal education

Master of Science - MS, AnalyticsInstitute for Advanced Analytics | 2022
Data Analyst Nanodegree Udacity | 2020
Master of Arts - MA, Clinical PsychologyUniversity of Novi Sad | 2017
Student Exchange Program, PsychologyLeopold-Franzens Universität Innsbruck | 2016

About Me

Jelena Mitrovic

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