Hello, my name is Aleksei Samoilov

Trading Surveillance & Fraud Detection Specialist with strong data analytics expertise

Open CV

Professional Summary

Lead Data Analyst with 10+ years in trading surveillance and 4+ years in affiliate and partnership fraud detection. Built and scaled fraud detection systems from scratch, leading high-performing teams and delivering measurable business impact.

Contact

LinkedIn Telegram +357 999 554 74 tibhar940@gmail.com

Timeline (Work + Mentoring)

Month-level Gantt chart to show role overlaps across full-time work and mentoring.

Work Mentoring/Consulting

Exness

Lead Data Analyst

Exness

Team Lead

Exness

Senior Data Analyst

Moscow Exchange

R&D Team Lead

Moscow Exchange

Monitoring Team Lead

Moscow Exchange

Monitoring Analyst

Bayes Business School

Industry Expert

Yandex Practicum

Mentor

Plekhanov University

Guest Lecturer

Key achievements

One slide per employer (roles inside). Mentoring and teaching share one slide, split by organization.

Exness

International data-driven retail multi-asset broker; fraud and risk analytics in Partnership (Digital Affiliates & Revenue share).

Lead Data Analyst (Risk Protection)

Jan 2025 — Present

Moved from Team Lead to IC; focus on fraud and risk analytics.
Event-based models for web click fraud, payout anomalies, and stronger multi-accounting detection.
High-impact work delivering $2M+ in monthly savings.

Partnership Risk Protection Team Lead

Sep 2023 — Dec 2024

Built and led a team of 7 on abuse detection across Partnership products.
Established 20+ monitoring processes from scratch.
Risk scoring and detection of abusive partners; improved fraud models.
About $350K+ in monthly savings from stronger detection.

Senior Data Analyst (Risk Protection)

Jun 2022 — Aug 2023

Anti-fraud models: multi-accounting, CPL, bots, hijacking—fewer false positives, about $100K+ monthly savings.
Monitoring from scratch; investigation time cut about 10×.
Internal Python frameworks and reporting; about 20+ hours saved weekly.

Moscow Exchange

Market surveillance: R&D, monitoring leadership, and core analytics.

Market Surveillance R&D Team Lead

May 2019 — Jun 2022

Hired 3 analysts; built an independent data analytics team.
Agile workflows and guidelines; R&D time-to-market down about 50%.
Supported 20+ criminal investigations with regulators and market participants.
Co-developed surveillance methodology with regulator/SRO; about $100K+ broker cost reduction.
MS models (trading abuse, insider trading, anomalies) at about 70–95% accuracy.
NLP (news, support automation) up to 97% F1; 1000+ hours saved.
Feature engineering and ETL frameworks for scalable model development.

MS Monitoring Team Lead

Jan 2017 — Apr 2019

Python frameworks for financial data; monitoring and reporting time down about 10×.
Analytics culture: 10+ training programs for 100+ employees; community (30+ people, 20+ sessions); 20+ investor seminars on surveillance.

MS Monitoring Analyst

Jul 2012 — Dec 2016

End-to-end market surveillance system; manual effort down about 50%.
20+ fraud rules before full rollout.
Automated reporting and member requests; time down about 90%.

Mentoring & extracurricular

Teaching and supervision alongside full-time roles.

Bayes Business School

Industry expert and supervisor · Mar 2025 — Present

Supervised undergraduate applied research—connecting academic theory with real-world analytics and finance problems.

Yandex Practicum

Mentor, Data Analysis track · Jun 2019 — Jun 2021

Supported the pilot course and iterated content for a more effective learning path.
50 seminars for 400+ students; strong early employment outcomes for mentees.

Plekhanov Russian University of Economics

Guest lecturer · Jan 2019 — Jun 2022

20+ seminars on trading surveillance on the Russian financial market over three years.
Developed and delivered seminar materials.

Stack and Skills

Python pandas sklearn catboost dask matplotlib plotly SQL Oracle PostgreSQL Firebird Vertica ClickHouse Trino Attribution models AppsFlyer Singular Web events analytics Metabase Grafana Plotly Dash Linux Bash Docker CI/CD Git Cursor Codex Jira Confluence JavaScript HTML/CSS

Personal Side

You can also check who I am outside work.

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