Summary
Overview
Work History
Education
Skills
Timeline
Generic

George Tellidis

OSINT Analyst
Athens

Summary

Dynamic Investigations Analyst with a proven track record, specializing in OSINT and blockchain analysis. Expert in developing data pipelines and web scrapers, enhancing fraud detection efforts. Strong team leader, adept at training peers in advanced investigation techniques, driving impactful results in cryptocurrency risk analysis and prevention.

Overview

4
4
years of professional experience

Work History

Investigations Analyst

Private Company
02.2024 - 07.2025
  • Developed open-source intelligence (OSINT) tools and techniques to uncover individuals involved in illicit activity within the crypto space.
  • Led investigations into high-risk individuals, often focusing on serious threats like fraud, terrorism, and other forms of organized online crime.
  • Built custom web scrapers to gather large amounts of personal and publicly available data, helping to spot patterns and link digital identities.
  • Reverse-engineered APIs to access hidden or undocumented data, supporting deeper and more efficient investigations.
  • Worked on counter-terrorism and online fraud cases, helping prevent harm before it occurred by identifying suspicious behavior early.
  • Trained fellow investigators in practical OSINT methods, helping the team grow their skills and stay current with evolving digital threats.


Co-Founder

OnChain Industries
09.2024 - 04.2025
  • Founded and led OnChain Industries, a Web3 security and OSINT company that tracks crypto wallets and links them to real-world identities using open-source intelligence techniques.
  • Personally developed the original concept and played a key role in growing the platform, which was later integrated into the well-known OSINT Industries ecosystem.
  • Collaborated closely with the engineering team, helping build tools that connect blockchain data with online identifiers across platforms.
  • Conducted investigations into illicit blockchain activity and published multiple case studies exposing threat actors and their tactics.

Collections Engineer

Cloudburst Technologies
08.2023 - 11.2023
  • Worked as a Collections Engineer at Cloudburst, developing data pipelines and scrapers for fraud detection and OSINT collection.

Data Scientist

Januus
12.2021 - 05.2023
  • Joined Januus.io in its early startup phase, helping to shape its direction in cryptocurrency risk analysis and Web3 intelligence.
  • Led data science initiatives focused on identifying risk signals across blockchain ecosystems, including Ethereum and Bitcoin networks.
  • Built and maintained automated data pipelines and large-scale web scrapers to collect OSINT and blockchain data from a wide range of sources.
  • Applied data analysis and HUMINT-informed approaches to uncover hidden patterns in crypto-related fraud and risk behavior.
  • Used tools like Python, SQL, Scrapy, Selenium, Postman, and Swagger to develop scalable, production-ready solutions.
  • Oversaw a small team of analysts and engineers, coordinating research, infrastructure development, and reporting.
  • Delivered insights and dashboards using tools like Google Sheets and Docs, enabling better decision-making for internal stakeholders and partners.
  • Played a key role in integrating risk analytics into Januus’s core platform, supporting efforts in crypto compliance, investigations, and due diligence.

Education

Certificate - Data Science

EKPA
Athens, Greece
04.2001 -

Skills

  • Open Source Intelligence (OSINT)

  • Blockchain Analysis

  • Cryptocurrency Risk Analysis

  • Fraud Detection & Prevention

  • Web Scraping

  • Data Pipelines & Automation

  • Python Programming

  • SQL

  • API Testing (Postman, Swagger)

  • Ethereum & Bitcoin Ecosystems

  • HUMINT (Human Intelligence Integration)

  • Data Analysis & Visualization

  • Amazon S3 / Cloud Storage

  • Team Leadership & Collaboration

  • Google Sheets & Docs

  • Investigation Techniques (Crypto & Web-Based)

Timeline

Co-Founder

OnChain Industries
09.2024 - 04.2025

Investigations Analyst

Private Company
02.2024 - 07.2025

Collections Engineer

Cloudburst Technologies
08.2023 - 11.2023

Data Scientist

Januus
12.2021 - 05.2023

Certificate - Data Science

EKPA
04.2001 -
George TellidisOSINT Analyst