AI Systems Architect · 15+ Years · 3× Founder
I help SMEs and enterprise teams ship AI-powered systems that actually work in production — from 30-day automation sprints to fractional CTO engagements. 15+ years building software people pay for. Published AI researcher. EU-based.
Trusted track record across: HealthTech · HRTech · FinTech · DeepTech · Blockchain
Previous engagements include
10 years enterprise engineering at BETA CAE Systems · 10K+ end users served · 20+ AI systems in production
A low-friction engagement ladder. Start free — pay only when you're ready to build.
30 min · Free · Video call
A first conversation to understand each other. You tell me about your business — what you do, where you are, what you're trying to achieve. I tell you how I work and where I might be able to help (or not). The goal is mutual fit, not a sales pitch.
60–90 min · Free · Video or on-site
I map your workflow in detail, identify the highest-ROI automation opportunity, and sketch a solution architecture. You walk away with a clear picture even if you don't move forward.
Hourly · €60/hr · Start with a quick win
We start with a small, scoped automation — something you can deploy in days, not months. Prove value before committing to a bigger engagement.
Standard / Growth / Scale retainer · Or extended hourly
Once you've seen results, we can move to a monthly retainer for better rates and faster response times, or continue hourly. Your call.
Book a free discovery call — no commitment, no pitch.
Real results from production AI systems — not proof-of-concepts.
I'm Christos Chatzivagias — a Principal Engineer with 15+ years building production AI systems. 3× co-founder. Most recently spent 3 years as Co-founder and Lead Engineer across 2 US HealthTech startups (AskMindi and WoundLocal) at Jubile Tech Incubator — both products are still operating today. Shipped production transformer NLP before ChatGPT made it mainstream (jubile.ai: 500-user enterprise pilot, 80%+ F1 scores on sentiment classification). Architected blockchain platforms (Block.co: ERC-721/1155 smart contracts), led multi-national engineering teams of 4-20 people. Published AI researcher.
I work with both small startups and large companies to automate their operations.
Languages & Frameworks
Cloud & AI Stack
Pricing
Begin at €60/hour with no commitment. When the work becomes ongoing — development, integrations, maintenance — switch to a monthly retainer for better rates and faster response times.
Pay for time. No commitment. No minimum.
Starting after the free Process Workshop, or for ad-hoc one-off work.
What's included
For ongoing development, integrations, and maintenance:
€54/hour (10% off ad-hoc rate)
Small ongoing tech needs — light maintenance, occasional integrations, small enhancements.
30-day notice. No long-term lock-in.
Start Standard Retainer →€48/hour (20% off ad-hoc rate)
Active automation development with regular new features, integrations, and reliable maintenance.
30-day notice. No long-term lock-in.
Start Growth Retainer →€42/hour (30% off ad-hoc rate)
Heavy ongoing involvement across multiple systems. Effectively your part-time dev team.
30-day notice. No long-term lock-in.
Start Scale Retainer →For defined one-off engagements, two custom formats are available:
AI Sprint
Fixed-price project for a scoped automation (typically 80-120 hours, ~30-60 days). Quoted per project based on scope.
Operations Audit
Fixed €1,800 for a formal 2-week operational assessment with ROI-ranked roadmap.
All engagements include NDA, IP assignment to you, and GDPR-compliant data handling by default. Invoicing in EUR; USD on request. EU VAT handled appropriately. Retainers billed monthly in advance.
Contact
Have a project in mind or want to explore what automation could do for your business? Send me a message.
contact@blockport.tech
+30 699 374 6232
Message on WhatsApp
Katerini, Greece
Sofia, Bulgaria
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