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Athens, Greece

Aggelos Konstantilieris

Full-Stack Developer & AI Integrations Lead

I design and ship GenAI-powered product systems: AI agents, batch/realtime LLM workflows, prompt-action architectures, CRMs, and internal tools for teams that need reliable software.

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Building at LgMAR

Open to new projects

Last visitor from
Greece

Experience

The teams and systems that shaped how I build.

I work best where product clarity, operational detail, and engineering rigor all matter at the same time.

Selected role

LgMAR

LgMAR

Full-Stack Developer & AI Integrations Lead

Athens, GR

Mar 2024 - Present

Leading AI integration architecture for Omni, LgMAR's maritime CRM and communication platform.

  • Architected AI pipelines for classification, vessel/cargo/port entity extraction, workflow automation, and structured prompt-action execution.
  • Designed a modular architecture separating domain logic, orchestration, provider concerns, and UI surfaces.
  • Introduced observability, structured logging, and performance monitoring for AI-assisted workflows.
  • Collaborated with product, operations, and leadership on the AI roadmap.

Writing

Writing on reliable AI systems.

Notes from building production AI: evals, structured outputs, orchestration, and the operational layer around LLMs.

Featured article / 7 min read

Evaluation-Driven Development: Shipping an AI Booking Agent You Can Trust

Golden fixtures, simulated users, LLM-as-judge scoring, safety gates, latency budgets, and promotion guardrails for an AI booking agent.

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Start a project

Building a GenAI workflow, AI agent, or operational product?

I help teams ship production AI systems — agents, LLM orchestration, and the CRMs and internal tools around them — as software they can trust every day.

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Featured case study

Apollon CRM

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One workflow for bookings, occupancy, pets, owners, and revenue.

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AI Systems & Product Work

AI systems and operational products built for real workflows.

Case studies across GenAI agents, LLM batch orchestration, prompt-action systems, CRMs, booking flows, and logistics platforms.

GenAI systems / batch orchestration / AI agents / operational software

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Forge

Latest AI infrastructure project / LLM Infrastructure

Forge

Provider-agnostic LLM batch and realtime orchestration system built around two Node daemons, Postgres leases, SQL state transitions, and worker-based execution.

Category
LLM Infrastructure
Audience
Teams running batch and realtime AI jobs
Outcome
Crash-safe, horizontally scalable LLM job execution across OpenAI and Anthropic without queues, IPC, or shared worker processes.

Built with Node.js / TypeScript / PostgreSQL / OpenAI / Anthropic / Prometheus

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Holocomm AI Agent

Founder AI booking project / WhatsApp AI Agent

Holocomm AI Agent

WhatsApp AI booking assistant that turns customer messages into structured bookings, confirmations, and operational follow-up.

Category
WhatsApp AI Agent
Audience
Studios and service businesses
Outcome
Customers book through chat while the business keeps a reliable operational flow.

Built with NestJS / Redis / Next.js / TypeScript

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Omni AI Integration Architecture

Professional AI integration work / AI Integration Architecture

Omni AI Integration Architecture

AI-augmented maritime CRM architecture for classification, entity extraction, prompt-action workflows, and operational automation.

Category
AI Integration Architecture
Audience
Maritime operations and communication teams
Outcome
A modular AI integration foundation for extracting operational meaning from communication workflows.

Built with React / TypeScript / Node.js / OpenAI

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Apollon CRM

Featured case study / Operations CRM

Apollon CRM

Full-stack CRM for pet boarding teams with room scheduling, client records, booking management, and financial reporting.

Category
Operations CRM
Audience
Pet boarding and care businesses
Outcome
One workflow for bookings, occupancy, pets, owners, and revenue.

Built with React / TypeScript / Tailwind CSS / Next.js

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Additional work

Fotokiklosi

Additional work / Logistics Platform

Fotokiklosi

End-to-end waste management platform coordinating collection points, routes, material handling, and internal reporting across Greece.

Audience
Waste management operations teams
Outcome
Route planning, traceability, and internal workflows in one production system.

Built with React / TypeScript

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