AI✓ Verified
AI Fluency: Framework & Foundations
Anthropic
ID · xb8ds8dvyukd
Open to internships & first roles
Computer Science Student — Athens, Greece
Antonis
Sigalas
I learn by building — a published iOS app, a suite of Python security & AI tools, and 29 public projects. Strongest in Python and in the practical craft of shipping and automating things.
$ whoami antonis_sigalas $ cat profile.json { "role": "Computer Science Student", "location": "Athens, Greece", "builds_with": ["python", "claude api"], "focus": ["security", "ai", "automation"], "status": "open to internships" } $
01 — About
Learning by building — and shipping the results.
I'm Antonis — a computer science student from Athens who learns by building. I've published an iOS app on the App Store, shipped a website on its own domain, and built a public portfolio of tools — most of them in Python, several powered by the Claude API.
My focus is cybersecurity and AI tooling, and I'm early and serious on that path: strongest in Python and in the practical craft of shipping and automating projects. I'm looking for a first role or internship where I can keep building and learn from an experienced team.
- 29Public repositories
- 1iOS app on the App Store
- 8Certifications
- PyPython — main language
02 — Skills
The stack I build with
Strongest in Python; comfortable shipping full-stack and automating with AI.
Languages
Python is my main language — my own project work plus a six-month algorithmics course.
AI & LLMs
Building small applications on the Claude API and wiring model output into working tools.
Automation & platforms
Scheduled jobs, CI, and shipping to production — publishing in public on GitHub.
Security · learning, hands-on
Cybersecurity fundamentals through self-directed projects — the tools below are how I learn.
Published on the App Store
Grip OBD
A vehicle OBD-II diagnostics app for iPhone — read live engine data and fault codes from your car. Designed, built, and shipped to the Apple App Store.
View on the App Store ↗security-toolkit
↗Four security tools in one browser app — password/breach check, JWT inspector, hash identifier, and headers grader. Runs 100% client-side.
reconforge
↗Modular recon & vulnerability-assessment framework — async engine, MITRE ATT&CK mapping, and multi-format reporting.
phish-analyzer
↗AI-assisted phishing email analyzer — extracts red flags and returns a phishing / suspicious / legitimate verdict with reasoning.
log-sentinel
↗AI-powered SSH log-anomaly explainer — heuristics flag brute-force and intrusion patterns, then Claude explains each finding with severity and fixes.
credential-checker
↗Privacy-preserving password-strength & breach checker built on k-anonymity — the password never leaves the machine. CLI + web, covered by pytest.
jwt-inspector
↗JWT security analyzer — flags alg:none and weak claims, and brute-forces weak HMAC secrets to demonstrate token forgery.
totp-authenticator
↗From-scratch TOTP/HOTP two-factor generator (RFC 4226 / 6238), verified against the official RFC test vectors.
tech-news-agent
↗Automated pipeline that pulls global tech RSS nightly, selects & translates the top five with an LLM, and emails the digest — unattended on GitHub Actions.
paper-trader
↗Full-stack paper-trading platform — Google auth, up to 20 accounts, custom balances, and live US stock trading.
carro
↗An AI-assisted car marketplace — a modern reimagining of car.gr, with search and listings.
ctf-writeups
↗Capture-the-Flag write-ups — reasoning-first solutions across crypto, web, forensics, and pwn.
See all 29 repositories
↗port-scanner, hash-cracker, file-integrity-monitor, header-check, and more on GitHub.
04 — Certifications
Credentials
AI & development from Anthropic, plus C2-level English.
101✓ Verified
Claude 101
Anthropic
ID · x2t7j7mapqwg
</>✓ Verified
Claude Code 101
Anthropic
ID · pymkdzwkzer3
◆✓ Verified
Claude Platform 101
Anthropic
ID · wcp54fiac9o6
◎✓ Verified
Introduction to Claude Cowork
Anthropic
ID · 3t2hgxb9zg76
▶✓ Verified
Claude Code in Action
Anthropic
ID · 7t5ydazuo543
ENC2
ESB Level 2 Certificate in ESOL International
ESB · English Speaking Board
CEFR Level C2 — proficiency
ENC1
ECCE — Certificate of Competency in English
University of Michigan
CEFR Level B2 / C1
05 — Contact
Let's build something
Let's build something
together.
Open to internships and first roles, collaboration, and a good conversation about security, AI, or shipping things.
antonsig08@gmail.com