Maksim Koprivica

Key Skills

Software

Data Annotation Tech

Mercor

Scale AI

Other

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Document

Image

Text

Video

Top Label Types

Audio Recording

Bounding Box

Classification

Data Collection

Emotion Recognition

Entity Ner Classification

Evaluation Rating

Function Calling

Mapping

Object Detection

Prompt Response Writing SFT

Question Answering

Red Teaming

RLHF

Segmentation

Text Generation

Text Summarization

Transcription

Freelancer Overview

I am an experienced AI and data quality specialist with a strong background in data annotation, labeling, and training data design for LLMs across multilingual, STEM, and financial domains. My work includes leading QA workflows, refining prompt engineering, and optimizing model alignment through RLHF and RAG pipelines. I have collaborated with cross-functional teams to identify edge cases, improve dataset consistency, and enhance instruction-following in production AI systems. My technical skills span annotation tools, synthetic data generation, workflow automation (Airtable, Make.com), and output evaluation using structured rubrics. I am passionate about building high-quality datasets, reducing ambiguity, and delivering reliable training data for advanced AI applications.

Labeling Experience

Math Annotator (AI Training Data)

Data Annotation TechTextClassificationQuestion Answering

Reviewed and annotated mathematical and financial data to improve model understanding of equations, logic, and symbolic reasoning. Tasks included classifying equations, validating reasoning steps, and correcting annotation inconsistencies across formats such as LaTeX, spreadsheets, and scanned documents.

Reviewed and annotated mathematical and financial data to improve model understanding of equations, logic, and symbolic reasoning. Tasks included classifying equations, validating reasoning steps, and correcting annotation inconsistencies across formats such as LaTeX, spreadsheets, and scanned documents.

2025 - 2025

AI Model Alignment & Quality Specialist (Contract)

MercorTextRLHFEvaluation Rating

Provided independent alignment and quality evaluation of advanced AI model outputs using structured rubrics focused on reasoning quality, instruction adherence, and intent alignment. Reviewed ambiguous and edge-case prompts where automated scoring was insufficient, supporting reliable preference ranking and consistency across evaluation runs.

Provided independent alignment and quality evaluation of advanced AI model outputs using structured rubrics focused on reasoning quality, instruction adherence, and intent alignment. Reviewed ambiguous and edge-case prompts where automated scoring was insufficient, supporting reliable preference ranking and consistency across evaluation runs.

2025 - 2025

Senior Data Quality & Model Optimization Specialist

Scale AITextRLHFEvaluation Rating

Worked across multiple large-scale LLM training, evaluation, and optimization initiatives focused on improving instruction-following, reasoning quality, and alignment. Responsibilities included reviewing and comparing model outputs, preference ranking, edge-case analysis, and applying detailed evaluation rubrics in ambiguous scenarios where judgment was required. Contributed to RLHF and RAG pipelines by identifying recurring failure patterns and data gaps, and translating evaluation findings into prompt, dataset, and guardrail improvements. Also led QA and validation workflows to ensure labeling accuracy and consistency across projects.

Worked across multiple large-scale LLM training, evaluation, and optimization initiatives focused on improving instruction-following, reasoning quality, and alignment. Responsibilities included reviewing and comparing model outputs, preference ranking, edge-case analysis, and applying detailed evaluation rubrics in ambiguous scenarios where judgment was required. Contributed to RLHF and RAG pipelines by identifying recurring failure patterns and data gaps, and translating evaluation findings into prompt, dataset, and guardrail improvements. Also led QA and validation workflows to ensure labeling accuracy and consistency across projects.

2023 - 2025

Education

Work History