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I’m Ioannis Pegiadis, aSenior AI & Full-Stack Engineer with 6 years of hands-on experience shipping production LLM systems, RAG pipelines, and AI agents. I specialize in Python, FastAPI, Next.js, and PostgreSQL, and I’ve built enterprise RAG systems that integrate OpenAI and Anthropic Claude for compliance workflows, multi-tenant SaaS, and high-throughput APIs under live traffic. I enjoy solving complex problems and translating needs into reliable, observable services. Across roles, I’ve migrated legacy systems to modern stacks, automated release pipelines with GitHub Actions, and designed architectures with end-to-end observability. My focus is delivering robust, scalable software that empowers teams to move quickly while maintaining quality and governance.…I’m Ioannis Pegiadis, aSenior AI & Full-Stack Engineer with 6 years of hands-on experience shipping production LLM systems, RAG pipelines, and AI agents. I specialize in Python, FastAPI, Next.js, and PostgreSQL, and I’ve built enterprise RAG systems that integrate OpenAI and Anthropic Claude for compliance workflows, multi-tenant SaaS, and high-throughput APIs under live traffic. I enjoy solving complex problems and translating needs into reliable, observable services. Across roles, I’ve migrated legacy systems to modern stacks, automated release pipelines with GitHub Actions, and designed architectures with end-to-end observability. My focus is delivering robust, scalable software that empowers teams to move quickly while maintaining quality and governance.

Ioannis Pegiadis

AI Engineer, Data Scientist, Web Developer, +2

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I’m Ioannis Pegiadis, aSenior AI & Full-Stack Engineer with 6 years of hands-on experience shipping production LLM systems, RAG pipelines, and AI agents. I specialize in Python, FastAPI, Next.js, and PostgreSQL, and I’ve built enterprise RAG systems that integrate OpenAI and Anthropic Claude for compliance workflows, multi-tenant SaaS, and high-throughput APIs under live traffic. I enjoy solving complex problems and translating needs into reliable, observable services. Across roles, I’ve migrated legacy systems to modern stacks, automated release pipelines with GitHub Actions, and designed architectures with end-to-end observability. My focus is delivering robust, scalable software that empowers teams to move quickly while maintaining quality and governance.…I’m Ioannis Pegiadis, aSenior AI & Full-Stack Engineer with 6 years of hands-on experience shipping production LLM systems, RAG pipelines, and AI agents. I specialize in Python, FastAPI, Next.js, and PostgreSQL, and I’ve built enterprise RAG systems that integrate OpenAI and Anthropic Claude for compliance workflows, multi-tenant SaaS, and high-throughput APIs under live traffic. I enjoy solving complex problems and translating needs into reliable, observable services. Across roles, I’ve migrated legacy systems to modern stacks, automated release pipelines with GitHub Actions, and designed architectures with end-to-end observability. My focus is delivering robust, scalable software that empowers teams to move quickly while maintaining quality and governance.

Available to hire

I’m Ioannis Pegiadis, aSenior AI & Full-Stack Engineer with 6 years of hands-on experience shipping production LLM systems, RAG pipelines, and AI agents. I specialize in Python, FastAPI, Next.js, and PostgreSQL, and I’ve built enterprise RAG systems that integrate OpenAI and Anthropic Claude for compliance workflows, multi-tenant SaaS, and high-throughput APIs under live traffic. I enjoy solving complex problems and translating needs into reliable, observable services.

Across roles, I’ve migrated legacy systems to modern stacks, automated release pipelines with GitHub Actions, and designed architectures with end-to-end observability. My focus is delivering robust, scalable software that empowers teams to move quickly while maintaining quality and governance.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Greek, Modern

Fluent

German

Intermediate

Work Experience

Software Engineer at Eco-development

June 1, 2024 - November 25, 2025

Architected and implemented scalable data infrastructure with .NET C# APIs, PostgreSQL, and React. Developed RESTful APIs, optimized database schema, integrated React Vite UI, and established CI/CD pipelines.

Software Engineer at BetAdvanced

June 1, 2023 - November 25, 2025

Engineered robust RESTful APIs in .NET C# for high-traffic backend services, enhancing performance and reliability for real-time data transactions.

Data Engineer at Eco-development

August 1, 2023 - August 1, 2023

Designed and optimized data architecture workflows for efficient ETL processes, improving data processing speeds and reducing latency.

Data Analyst at Eco-development

May 1, 2022 - May 1, 2022

Developed data acquisition strategies, conducted exploratory data analysis, and collaborated with stakeholders to enhance data-driven decision-making.

Intern Data Analyst at Makios Logistics

June 1, 2020 - June 1, 2020

Performed data entry and validation, ensuring data integrity for efficient order processing.

AI Engineer (Consulting) at Future Cats

January 1, 2025 - Present

Built production RAG systems enabling natural-language search across compliance documents, product specifications, and label regulations for a major Greek manufacturer. Backend designed in Python FastAPI with Pinecone as the vector store, orchestrating OpenAI GPT and Anthropic Claude APIs with multi-model orchestration and fallback. Designed AI agents for whiteboard label compliance checking, reducing manual review time from hours to minutes. Implemented real-time streaming responses via WebSockets for low-latency chat with a React frontend. Delivered an HR Succession Planning platform (Vite + TypeScript + Express + Prisma + MySQL + Docker) for executive talent pipeline management.

Senior Software Engineer (Consulting) at Eco-development

June 1, 2024 - Present

Led migration of legacy data systems to a scalable .NET / React architecture, delivering a noticeably faster experience for daily internal use. Designed and optimized a PostGIS database handling millions of spatial records, tuning indexes and query plans for responsive spatial joins at scale. Built satellite data pipelines with Copernicus and Google Earth Engine, including S3 storage, automated ingestion, and Slack alerting for environmental monitoring. Replaced manual release processes with GitHub Actions CI/CD on cloud VPS. Architected a clean API layer using Dapper and Npgsql to ensure high throughput for real-time environmental data entry and lab integrations.

Data Engineer at Eco-development

June 1, 2022 - August 1, 2023

Designed ETL workflows using Apache Airflow, automating data ingestion from diverse APIs and eliminating a recurring manual ingestion workload. Collaborated with data science teams to prepare high-quality datasets enabling deployment of predictive models for public-health applications (e.g., mosquito control). Replaced manual processes with scalable pipelines and implemented Slack alerting for operational monitoring.

Founder / Lead Developer at Vetly

January 1, 2025 - Present

Architected and shipped a multi-tenant SaaS platform for veterinary clinic management — patient records, appointment scheduling, billing, and owner mobile experience. Integrated Local LLMs (Llama-3) for automated patient history summarization, ensuring 100% data privacy and zero per-token API costs. Self-hosted PostgreSQL on Hetzner VPS with Docker, full CI/CD via Coolify, and Grafana dashboards monitoring API latency, database performance, and uptime.

Project Lead / Developer at Sportsholics

January 1, 2024 - January 1, 2024

Developed a high-traffic Greek sports analytics content platform with a custom headless CMS backend (Sportsholics). Optimized frontend performance to achieve a Lighthouse score of 98/100 for SEO and user retention. Implemented data pipelines and PostgreSQL integration to support analytics content.