00 // Introduction

Dmytro Petrovskyi

ML/AI Engineer who takes systems from research to production. LLMs, computer vision, large-scale search — built and shipped across e-commerce, defense tech, and fintech.

0+ Years in ML/AI
0B Scale (posts analyzed)
0 Companies shipped at
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01 // Edge

How I work

Foundation

IMO medalist. Kaggle Master. 10+ years building AI/ML systems at scale. I solve hard problems because I trained on hard problems.

Operating mode

You bring the problem — I bring the solution. I analyze, architect, and implement end-to-end. Then I hand over a working system, not a deck.

Sweet spot

Technically challenging ML over massive data. I've built AI-powered search over petabytes of photos and classified 100B posts for under $3K. I've replaced 300 production models with one, saving $100K/year. If the problem has scale and needs precision engineering — that's where I operate.

02 // Work

Selected work

01
NielsenIQ

Multi-Agent Code Generation System

Building an internal coding co-pilot as a multi-agent system for automatic code generation in a custom DSL. Uses LLM-as-a-Judge, agent collaboration, dynamic context auto-compaction, and custom orchestration.

AI Agents Multi-Agent Code Generation
02
Defense Tech (NDA)

AI Profiling Pipeline

End-to-end AI profiling pipeline that aggregates massive volumes of posts, reposts, likes, and comments across social platforms, filters signal from noise, and synthesizes balanced intelligence dossiers with precise detail — flagging suspicious patterns while avoiding false positives.

AI RAG Scale OSINT
03
NielsenIQ

Massive Multitask Product Classification

Compressed 300+ individual classification models into a single multi-taxonomy multitask architecture using a shared architecture — cutting cloud costs by ~$100K/year while improving accuracy through knowledge transfer across taxonomies.

LLMs Deep Learning Multitask Learning Scale E-commerce
04
Defense Tech (NDA)

Petabyte-Scale Face Search

Designed and built visual retrieval across ~3 billion public photos. Identity search and entity resolution for intelligence consumers — from a single photo to matching appearances across social platforms.

Computer Vision Search Scale OSINT
05
Defense Tech (NDA)

AI-Powered Extremism & Corruption Detection

AI-based search across 100 billion posts and comments, flagging suspicious pro-Russian and extremist activity. Detects threats from individuals and organizations — including anticorruption use cases.

AI LLMs Deep Learning Search Scale OSINT
06
Rakuten

Forecasting at 10M+ User Scale

Built forecasting systems serving predictions for a 10M+ consumer panel, alongside ML platform infrastructure on AWS for model serving and training.

Forecasting ML Scale
07
Pet Project

booktrailers.ai

Fully automatic book-to-visual pipeline. Smart genre detection, character and scene extraction, and AI-generated stunning visuals — delivered as Instagram-style stories or cinematic video trailers.

AI Image Generation Video Generation Side Project
03 // Experience

Where I've worked

NielsenIQ

Senior ML/AI Engineer (Tech Lead)

Multi-agent code generation, multitask classification (300+ → 1 model), LLM systems

Sep 2022 – Present

Defense Tech (NDA)

ML/AI Engineer → Advisor

AI search pipelines over 100B posts, petabyte-scale face search, AI profiling for OSINT

Early 2022 – Present

Rakuten

Senior ML Engineer / Team Lead

Forecasting at 10M+ scale, ML platform on AWS/K8s

Aug 2019 – Dec 2021

Whirl Software

ML Engineer / Team Lead

Social media monitoring, NLP models (sentiment, NER)

Jul 2018 – Aug 2019

Infopulse

ML Engineer

LiDAR / 3D point-cloud semantic segmentation

Mar 2018 – Jul 2018

Zoral

ML Engineer

Credit scoring, fraud detection, NLP R&D

Jan 2016 – Mar 2018

Promptlink Communications

Software Engineer

Network monitoring systems, low-level algorithms

Jan 2013 – Sep 2015
04 // Next

What I'm looking for

Role

Architect-level or senior ML/AI engineer position. Part-time, fractional, or contract arrangements welcome.

Location

Based in Kyiv, Ukraine. Remote-flexible — experienced working across time zones with distributed teams.

Domains

AI, Agents, LLMs, efficient ML solutions, scale. Comfortable anywhere from R&D to production deployment.

What I bring

10+ years shipping AI/ML systems. Research-to-production delivery. End-to-end ownership from modeling to deployment.

05 // Blog

Writing

Coming soon

Thoughts on ML engineering, building production AI systems, and lessons from shipping at scale. Stay tuned.