Dusan Iskic
Dusan Iskic

Junior Data Analyst and Machine Learning Developer

Actively looking · Member since 2 Oct 2026
Location
Toronto, Canada
Desired salary
Unspecified
Work preference
Remote Only / Full Time
Experience level
Junior

About

Professional summary

I am a junior data and machine learning professional with hands-on experience in Python, SQL, analytics, quality assurance, and automation. I am completing an Honours Bachelor of Science in Astronomy and Physics at the University of Toronto, where I have built a strong quantitative foundation through coursework in algorithms, optimization, statistics, databases, and software design.

I have experience developing and validating datasets for AI systems, evaluating model outputs, identifying recurring errors, and producing structured quality-assurance reports. My work has involved processing hundreds of code snippets, conducting peer reviews, and helping improve data quality for enterprise model training.

I build automation and web-testing solutions using Selenium, Python, and web-scraping techniques. I have helped automate usability and bug-testing workflows, tested website features, contributed to React-based websites, and collaborated with clients on long-term product feature roadmaps.

My data science experience includes clustering, market analysis, ETL pipeline development, time-series data processing, and machine learning classification. I have used k-means clustering for user categorization, analyzed competitive markets, and translated complex data into actionable business recommendations.

I am particularly interested in applying data engineering and machine learning to real-world problems in digital health, analytics, and scientific research. My projects include an ML-enabled therapy application and an astronomical variable-star classification pipeline using large-scale GAIA DR3 and TESS data.

Skills

28 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Data Stores

Experience

Career history

QA Analyst Data Annotation Tech

Developed benchmark datasets and evaluated AI performance to reduce hallucinations and improve the quality of data outputs. Created modular, multi-file codebases on GitHub to support model learning related to Git workflows and multi-file code processing.

Processed and evaluated more than 500 independent code snippets, producing structured quality-assurance reports that identified recurring errors and supported system-performance improvements. Conducted rigorous QA reviews of peer datasets and delivered feedback that resolved coding issues and improved enterprise training-data quality.

Automation Developer Intern Riipen Level-up Internships

Developed website-testing protocols using Selenium and web-scraping methods to automate bug testing and usability checks. Established automation coverage for approximately 95% of website features, reducing manual effort and limiting testing and reporting errors.

Identified and tested hundreds of bugs while helping develop more than five React-based websites for startup clients. Contributed UI/UX features and collaborated with clients to create five-year feature implementation timelines focused on user metrics and marketplace discoverability.

Machine Learning and Market Analysis Intern VFC Internship Program

Engineered a Python k-means clustering model to improve internal sorting algorithms and user categorization, enhancing navigation for more than 6,000 active users.

Conducted market analysis across more than 100 competitors and converted findings into strategic recommendations for executive decision-making, product design, and scalable marketplace architecture. Produced regular business reports that synthesized complex market data into actionable growth insights for cross-functional stakeholders.

Education

Learning history

University of Toronto - St. George Campus

Honours Bachelor of Science, Astronomy and Physics Specialist

Relevant coursework includes Linear Algebra, Software Design, Data Structures and Algorithms, Mathematical Optimization, Probability and Statistics, and Database Management Systems.

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