Quick audit
Best when you want a clear yes/no on whether one workflow is worth automating.
For IT and software teams
I review one real workflow, map the data, tools, and approval risks, and show what can be automated safely, what needs human review, and the clearest practical next step.
What you get
AI and dev automation audit
For IT and software teams that want to clean up repeated PR, documentation, QA or support work without handing sensitive workflows to an unchecked bot.
I review one concrete workflow, map the data and approval boundaries, and produce a short report with practical next steps. If the scope is safe enough, I can also prepare one focused, human-reviewed quick win.
Best when you want a clear yes/no on whether one workflow is worth automating.
Best when the scope is already narrow and a safe first implementation can be tested privately.
Best when the hard part is choosing between local, EU-hosted and vendor tools without guessing on data risk.
Read a fictional, client-safe sample audit before sending private details.
Experience areas
The lists below preserve the full background, but the common thread is simple: clearer scope, safer access, better handoffs, tested changes and fewer surprises.
Topics I work with and continue to study in day-to-day IT security.
Topics I have worked on in IT operations, governance and team processes.
Topics related to modernization, migration and practical automation.
I also share knowledge with non-profit organizations through practical workshops:
Open source projects I follow and support:
Public-safe proof
I keep this section ranked by client value, not by chronology. The four cards below are the strongest public examples right now; the expandable list keeps smaller tested methods visible without turning the page into a changelog.
Built a browser and CLI workflow for preparing XRechnung and EN16931 invoice XML candidates. Invoice handling stays local, fields are checked in a structured way, and KoSIT validation remains the reference for real submission claims.
Built a local operator dashboard for automation work: task state, service health, evidence links and approval points in one client-safe snapshot. Raw infrastructure details stay out of the public view.
Hardened agent-assisted repository work with scoped fixes, local and CI checks, passive repo watchlists, fallback checks and quiet no-news monitoring before calling work complete.
Built local proof packages for security questionnaires, DORA ICT evidence prompts, finance exception reports, accessibility snapshots and technical data rooms. They use synthetic data and approval gates by default.
Built repeatable browser checks for demo flows, logout behavior, task detail pages, theme switching, invoice forms and trust UI.
Triaged WordPress file-change alerts by separating normal updater noise from compromise signals, then checked public pages, plugin state and security headers before recommending baseline or cleanup steps.
Reduced a web app npm audit from reported issues to zero, then checked lint, tests and production build instead of treating the audit output as the finish line.
Built a private, synthetic package that organizes questionnaire answers, evidence owners, freshness status and approval gates before any real customer security data is touched.
Built a local spreadsheet-first preflight for ICT providers answering DORA-driven customer due-diligence requests. It is evidence organization, not legal or compliance certification.
Built a private kit for micro-SaaS technical diligence: architecture notes, repository inventory, dependency evidence, runbooks, access prompts and buyer FAQ material using demo data.
Built a local CSV report for invoice and receivable/payable anomalies using synthetic sample data, summary JSON and validator checks. It stays local and read-only by design.
Built a private bid-pack prototype that turns public tender notices into a bid/no-bid memo, source notes and a short buyer-safe sample. It is a proof package, not a procurement promise.
Built a page triage check that flags common accessibility issues with selectors and plain notes for developers. Useful before a real WCAG audit, not a replacement for one.
Contributed tested production-readiness slices to a browser CAD sketcher: DXF import safety, STL reference-mesh validation, project-file guards, delete-shortcut behavior and rotated push/pull correctness.
Set up local AI tools for private search, drafting and experimentation without sending every task to a hosted service.
Tested apps in a responsible, private-first way: scoped targets, safe reproduction steps and clear reports for teams to fix.
Kept health checks, task state, watchdogs and summaries tied together so automation work has a visible owner, status and next action.
Built a review flow for tracking useful open-source changes, selecting only relevant patterns and turning them into small local improvements after review.
Prepared a managed-agent platform briefing pattern with scope, risks, architecture options and phased MVP notes, without publishing client names or private proposal details.
About
My name is Antonios Chatzigiagkos. I have 15+ years of experience in IT and build practical solutions for real-world technical challenges.
My work covers IT operations, security, Microsoft 365 and Azure administration, automation, service management and modern AI tooling. I like useful systems: clear scope, good handoffs, tests, logs and rollback paths.
I actively explore open-source and local-first AI across web development, programming, security analysis and content workflows, then turn the useful parts into working methods.
This website is a personal profile and portfolio page for employers, clients and technical reviewers. Freelance or project inquiries are handled individually by direct contact.
To learn more about me, check out my LinkedIn & Xing accounts. For exchange and networking, contact me via email: ac@it-expert.io.
Current product experiment
A trust layer for AI agent tasks.
Scope is defined first, execution is logged, and review happens before payout. This product effort is separate from this personal profile page. The public demo is read-only and uses sample data.
Contact
Send a short description only. Please do not include secrets, customer data, private repository contents or confidential vulnerability details in the first message.
Antonios Chatzigiagkos
IT Expert / Freelancer
Germany / Bavaria
Phone: +49 1511 5572841
Email: ac@it-expert.io
Impressum / Legal Notice