I’m Apostolos Agiannidis, a physician and full-stack developer with six years of software development experience. My recent work sits at the intersection of health care and AI, building tools that handle real clinical data and behave reliably. I’m comfortable across the full stack and have hands-on experience integrating LLM APIs (Claude, OpenAI, OpenRouter) into production workflows, including conversational systems, recommendation engines, and document pipelines. I work closely with clients to scope MVPs, define architecture, and deliver iteratively. I thrive in early-stage environments where clarity and delivery matter more than process.

Apostolos Agiannidis

I’m Apostolos Agiannidis, a physician and full-stack developer with six years of software development experience. My recent work sits at the intersection of health care and AI, building tools that handle real clinical data and behave reliably. I’m comfortable across the full stack and have hands-on experience integrating LLM APIs (Claude, OpenAI, OpenRouter) into production workflows, including conversational systems, recommendation engines, and document pipelines. I work closely with clients to scope MVPs, define architecture, and deliver iteratively. I thrive in early-stage environments where clarity and delivery matter more than process.

Available to hire

I’m Apostolos Agiannidis, a physician and full-stack developer with six years of software development experience. My recent work sits at the intersection of health care and AI, building tools that handle real clinical data and behave reliably. I’m comfortable across the full stack and have hands-on experience integrating LLM APIs (Claude, OpenAI, OpenRouter) into production workflows, including conversational systems, recommendation engines, and document pipelines.

I work closely with clients to scope MVPs, define architecture, and deliver iteratively. I thrive in early-stage environments where clarity and delivery matter more than process.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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Language

Greek, Modern
Fluent
English
Fluent
German
Advanced

Work Experience

Lead Engineer at NutriCRM — Clinical AI Platform
January 1, 2025 - Present
Building a clinical management platform that aggregates data from genetic reports (DNA), metabolic testing (PNOE), body composition devices (Tanita), and epigenetic panels. Developed document parsing pipelines for structured and unstructured health data including lab reports and device APIs. Integrated Claude API for protocol generation with structured output and basic validation before data reaches clinicians.
Lead Engineer at Guestia — AI Concierge SaaS
January 1, 2024 - Present
Built a multi-tenant property management and AI concierge platform for hotels and short-term rentals. Developed RAG-powered guest interaction, automated task routing, and per-room pricing billing logic. Designed multi-tenant architecture with queue-based async processing and third-party integration layer.
Application Developer & Web Engineer at Freelance
January 1, 2016 - December 31, 2018
Built client websites, CMS integrations, and internal tools across multiple industries, parallel to medical studies.

Education

Doctor of Medicine (M.D.) at Comenius University Bratislava
January 1, 2019 - January 1, 2025

Qualifications

Add your qualifications or awards here.

Industry Experience

Healthcare, Life Sciences, Software & Internet, Professional Services, Travel & Hospitality