Software Developer · Spain

I build software
for industry.

Custom applications in Blazor and .NET for industrial companies: SAP integrations, shop-floor systems and tools used every day.

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Work

Real projects, in production.

Systems designed for daily use — with technical decisions, business context, and outcomes.

Featured2023ABAP & SQL Developer

SAP rollout and migration in an industrial environment

Migrating a legacy ERP to SAP at an industrial company: large-scale data extraction and cleansing, PP / SD / QM modules and custom Z developments in ABAP.

SAPABAPSQLSAP HANA
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SAP rollout and migration in an industrial environment
Retrato de Esteban Bernal
Esteban BernalSpain · UTC+1
About

3 years building software that's used every day.

I'm a software developer specialized in custom applications for industrial environments. My work sits between code and business: understanding how a real factory actually works and turning it into tools that get the job done.

Since 2023 I've been working at Litalsa, developing applications in Blazor and C#, and rolling out solutions on SAP with ABAP. I've built shop-floor applications, internal platforms, SAP integrations and large-scale data migrations. I know the metal, coatings and lithography sectors well.

Esteban Bernal as a kid with Florentino Pérez
A memory that taught me to think big.Madrid · 2012

I work with every level of the organization: from leadership down to plant operators. What interests me most is the less visible side — architecture, integration between systems, and the SQL queries that hold an application together once there's real data behind it. I enjoy projects where I have room to propose a solution, not just execute what was already decided.

In parallel I build my own projects with Next.js and React, where the interface matters as much as the logic.

Experience
  • 2023 — Now
    Software DeveloperLitalsa
Stack

The stack I build with.

From industrial environments with SAP to modern web development.

Backend

  • C# / .NET
  • ABAP
  • SAP
  • ASP.NET
  • Visual Basic
  • Java
  • Node.js

Frontend

  • Blazor
  • HTML / CSS
  • JavaScript
  • TypeScript
  • React
  • Next.js
  • Tailwind CSS

Data

  • SQL Server
  • T-SQL
  • SAP HANA
  • PostgreSQL

Tooling

  • Azure
  • Azure DevOps
  • Docker
  • Power BI
  • Git / GitHub
  • Vercel
Side projects

Own projects in motion.

Initiatives of my own where I apply what I learn in other stacks and business models.

Retrato de Esteban Bernal
Let's talk

Got something industrial in mind?

An application to extend, a legacy system to modernize, or something SAP doesn't quite cover? Tell me what you're working on and I'll get back to you within 24 hours.

esteban.bernal@pm.me