Oleksii A.

Key Skills

Software

Other

Top Subject Matter

Customer support automation

NLP analytics

Forecasting Domain Expertise

Top Data Types

Text

Document

Video

Top Task Types

Data Collection

Freelancer Overview

AI/ML Engineer at Competera (Ukraine, Hybrid). Brings 6+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor’s Degree, National Technical University of Ukraine “Kyiv Polytechnic Institute” (2021). AI-training focus includes data types such as Text and Document and labeling workflows including Evaluation, Rating, and Data Collection.

Labeling Experience

AI/ML Engineer at Competera (Ukraine, Hybrid)

OtherText

Built ML/NLP pipelines for customer-support automation, including text analytics and model-driven workflows. Implemented model monitoring and drift detection to track prediction-quality changes over time. Applied explainability (SHAP and LIME) to interpret model outputs for business understanding. • Customer-support ticket classification (routing accuracy improvement) • Semantic search using sentence embeddings and FAISS • Monitoring and drift detection processes • Explainability via SHAP and LIME

2022 - 2024

Junior Software Engineer at DataRoot Labs (Ukraine)

OtherDocumentData Collection

Supported development of ML models for classification, regression, NLP, anomaly detection, and forecasting for client-facing applications. Developed Python ETL and data preparation workflows to prepare structured and semi-structured datasets for training and reporting. Assisted with REST APIs to integrate ML models into internal tools and web applications. • Data preparation and ETL for ML datasets • Preparing training and reporting datasets from DBs • Integrating ML predictions via Flask/Django APIs • Building dashboards for analytics and model-driven insights

2021 - 2022

Education

Work History