EN / ES
Open to new collaborations
16+ years in production
6 companies
3 sectors
Experience at Siemens Logistics Logitravel Group

Ismael Sosa Domínguez

Software Architect & Process Automation Specialist.

Focused on removing operational chaos and scaling systems across Industry/Logistics, Travel/Hospitality and E-commerce.

» I build efficient, secure and predictable technology bridges.

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// 01 — Areas of specialization

Sectors where I build systems that scale.

Three domains where I have solved real problems: where software meets the physical world, where scale demands discipline, and where uptime is non-negotiable.

01
Industry & Logistics

Industry and Logistics

Connecting software with hardware/PLCs, automating traceability and optimizing workflows in critical environments where a single failure costs hours of production.

02
Travel & Hospitality

Travel and Hospitality

Integrating high-concurrency architectures, massive data management and removing administrative bottlenecks in platforms with aggressive seasonal spikes.

03
E-commerce

E-commerce

Robust, scalable backend systems with high availability and resilience built on modern .NET, ready to survive Black Friday without breaking a sweat.

// 02 — Portfolio

Selected projects.

Projects selected for the impact they delivered. Every case here solved a real operational pain point with a measurable outcome.

Industrial2013

Baggage Handling System Report Automation

Airport baggage handling systems (BHS) sort and route luggage through Siemens PLCs, BHS software and motorised conveyors. Their daily operational reports — covering downtime, bags processed by destination, incidents and overall operational status — were produced manually. I automated overnight generation and built a Windows Forms application that shows each report's status and allows dispatching it to the airport operator after manual validation.

Impact
  • Complete elimination of the manual daily report generation and submission workflow to the airport operator.
  • Windows Forms app with per-report status to catch generation failures before dispatch.
  • Report preparation time cut from hours to minutes with zero human intervention.
Stack
  • .NET
  • Oracle
  • BHS
  • Siemens PLC
Industrial2014

Remote Conveyor & Inspection Equipment Control Tool

Operational tool for airport technical staff that centralises conveyor jam resolution and remote security inspection equipment reboots in a single panel. Direct communication with Siemens S7 PLCs is handled via LIBNODAVE, removing the need for manual field intervention.

Impact
  • Conveyor jams resolved without requiring physical dispatch to the affected equipment.
  • Inspection equipment reboots handled from the dashboard, cutting operational downtime.
  • Recovery operations decoupled from native Siemens tooling via direct PLC communication.
Stack
  • .NET
  • Windows Forms
  • LIBNODAVE
  • Siemens PLC
Industrial2015

Baggage Traceability — IATA Audit

Windows Forms application that automates baggage traceability under the IATA audit framework, through which airlines can request traces for their bags. It reads an Excel file of bagtag IDs, queries the BHS system database and reconstructs the full journey of each bag: conveyor, sorter, chute, early baggage storage and pier. The result determines whether the failure is attributable to the handling system or the airline.

Impact
  • Manual baggage tracing process fully eliminated.
  • Traces generated in seconds versus hours of manual analysis.
  • Zero human errors in journey reconstruction, delivering more reliable results.
Stack
  • .NET
  • Windows Forms
  • Oracle
  • Excel
  • BHS
Travel2020

Hotel Price Accuracy Validator

Web tool to validate that hotel prices served to clients match contracted rates. It reads flat files with expected prices per market and client, queries the internal hotel availability API and compares results, generating Excel and CSV accuracy reports stored for auditing. Processing runs as scheduled background jobs, handling large volumes without blocking the system.

Impact
  • Automatic detection of discrepancies between contracted and served prices before they reach the client.
  • Per-client and per-market accuracy reports available for auditing and continuous monitoring.
  • Asynchronous processing of large rate volumes with no impact on system performance.
Stack
  • .NET 5
  • MongoDB
  • Hangfire
  • Refit
  • EPPlus
  • NUnit
Healthcare2026

Clinical Notes Multi-Agent AI Pipeline

ASP.NET Core 8 minimal API that processes doctor's clinical notes through a multi-agent AI pipeline: extracting clinical entities, classifying information and generating structured medical reports, persisting patient records to SQLite and delivering them via email. Paired with a React PWA for patient management, clinical note entry and generated report lookup.

Impact
  • Natural-language clinical notes transformed into structured medical reports with no human intervention.
  • Multi-agent pipeline orchestrating extraction, classification and report generation in a single cohesive flow.
  • Reports automatically delivered via email and accessible from the PWA alongside the patient history.
Stack
  • ASP.NET Core 8
  • React
  • SQLite
  • Claude AI
  • AI / LLMs
  • PWA
Educational2026

Feedback Flow — Student Feedback Distribution

Desktop application that automates personalised student feedback distribution. Manages student records and class sessions, generates per-student session PDFs and creates ready-to-send email drafts — no external dependencies required on the teacher's machine.

Impact
  • Manual process of writing and sending individual feedback to each student fully eliminated.
  • Per-student session PDFs generated automatically, ready to attach and send with no further editing.
  • Feedback distribution time cut from hours to minutes per session.
Stack
  • .NET 10
  • Windows Forms
  • SQLite
  • PDFSharp
  • MimeKit
// 03 — Professional experience

Over a decade shipping production systems.

Timeline of the environments where I have built, maintained and scaled critical platforms.

  1. Jan 2022 — Present Present

    NextChapter

    E-commerce

    Senior Software Engineer

    Building high-availability backend services on .NET and Azure with a focus on maintainability (SOLID, Clean Architecture), automated testing and continuous delivery.

    • .NET
    • Azure
    • SQL Server
    • Redis
    • Unit Testing
    • CI/CD
    • SOLID
    • Clean Architecture
    • Angular
  2. Nov 2019 — Dec 2021

    Logitravel Group

    Travel

    Senior Backend Engineer

    Designing and implementing distributed services for one of the leading European travel platforms: high-concurrency architectures, end-to-end observability and event streaming.

    • .NET Core
    • Azure
    • PostgreSQL
    • MongoDB
    • Apache Ignite
    • Kafka
    • Kibana
    • Grafana
  3. Apr 2013 — Aug 2019

    Siemens Logistics

    Logistics / Industrial

    IT Supervisor & System Administrator

    Owner of the technology operations behind airport baggage handling systems (BHS): SCADA integration, communication with Siemens PLCs and enterprise virtualization platform.

    Selected highlights
    • Automation of operational reports for the airport operator.
    • Integration with SCADA systems and IATA-compliant traceability.
    • Communication with Siemens PLCs via LIBNODAVE.
    • 24/7 baggage handling system (BHS) process control in airports.
    • VMware vSphere and Veeam Backup management on critical infrastructure.
    • SCADA
    • Siemens PLC
    • LIBNODAVE
    • VMware vSphere
    • Veeam Backup
    • IATA
  4. May 2015 — Aug 2019

    ISDA S.L.

    Technology

    Software Developer

    Development of a web application for the sales team, focused on sales-force productivity and real-time information availability.

    • ASP.NET
    • SQL Server
    • JavaScript
  5. Sep 2012 — Feb 2013

    Brújula TIC

    Technology

    Software Developer

    Web applications for the travel sector (Orizonia): development and maintenance of internal portals and management tools.

    • ASP.NET
    • JavaScript
    • SQL Server
  6. Feb 2010 — Sep 2011

    Gadirsolar S.A.

    Engineering / Manufacturing

    Software Developer

    Sales management and production supervision system for the solar module factory: from order to pallet, with shop-floor manufacturing tracking.

    • VB.NET
    • SQL Server
// 04 — Education and certifications

Academic background and continuous learning.

Education

  • Bachelor of Computer Science (Management Information Systems)

    Universidad de Cádiz (UCA)

  • Higher Technical Diploma in Software Application Development

    Ciclo Formativo de Grado Superior

Certifications and continuous learning

  • CCNA Exploration 1 — Network Fundamentals

    Cisco Networking Academy

  • Netcoreconf 2025

    Featured attendance — Madrid, Barcelona and Bilbao.