Full Stack Development · SaaS · Data Analytics · Tailored Websites

Lefteris Fthenos

I lead business analytics and build enterprise software for a multi-property hospitality group. I ship internal SaaS platforms (Power Automate, Power Apps, Django, FastAPI), analytics dashboards with Power BI and SQL, and client websites with clean, bilingual UX.

Available for client websites, data analytics, and SaaS projects worldwide.

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Enterprise SaaS

Finance & operations

Budget, cash flow, attendance, approvals, audit trails

Analytics & BI

Data-driven decisions

Power BI, SQL, ETL, Azure Data Warehouse

Client websites

Bilingual & responsive

Modern UX, accessibility, serverless contact flows

Scroll ↓ to learn more about me

About

I hold a BSc in Accounting & Finance and an MSc in Business Analytics from the Athens University of Economics & Business (AUEB), where I graduated second in my class with a GPA of 9.01/10. What drives me is the intersection of data, technology, and business performance—I’m curious about how things work and restless when it comes to learning new tools.

That curiosity pushed me beyond accounting and finance into business intelligence and web development. I now lead business analytics and build enterprise software: internal SaaS platforms (budget, cash flow, attendance, approvals), Power BI dashboards, and client websites. I operate at the intersection of product, data, and engineering—mapping real workflows, designing the right abstractions, and shipping software that teams actually adopt.

What I do

SaaS platforms

Django/Flask/FastAPI apps with roles, approvals, audit trails, exports, and embedded reporting.

Analytics & BI

SQL + Power BI dashboards, KPI models, automation, and practical ETL for business decisions.

Client websites

Fast, accessible, bilingual sites with a polished UI and dependable contact flows.

What I care about

Clear workflows and low-friction UX
Maintainable backends and reliable data pipelines
Shipping: correctness, performance, and clarity

At a glance

Location: Heraklion, Crete
Languages: Greek · English (C2)
Stack: Python · SQL · Power BI
Publication: HConVRP (AUEB)

By the numbers

5+
Years of coding: 6
Enterprise apps shipped: 9.01
MSc GPA (AUEB)

Work

Selected

A mix of internal SaaS platforms, client websites, and research projects.

SaaS & internal apps

Client websites

Research

Experience

Recent roles focused on building enterprise apps and analytics systems.

Skills

Practical stack for shipping apps, analytics, and production deployments.

Feed

Ideas, articles & thoughts

A personal repository of ideas, articles and notes.

Open feed Latest: Why automation is necessary in Greek hospitality

Contact

Open to client websites, data analytics, and SaaS projects. If you’re hiring or want to collaborate, I’d love to talk.