Alejandro Blanco
Senior .NET / SQL Server Developer
Business-critical systems, legacy modernization, industrial integrations, and AI-assisted software engineering.
Skills Summary
Languages & Frameworks
- C#
- VB.NET
- ASP.NET
- ASP.NET Core
- ASP.NET MVC
- WebForms
- Windows Forms
- WCF
- WebAPI
- .NET Framework
- .NET Core
- .NET 8
Databases
- Microsoft SQL Server
- T-SQL
- Stored Procedures
- Reporting Services
- Entity Framework
- Oracle
- PL/SQL
Industrial & Connected Systems
- RFID (Zebra/Motorola FX9500)
- Exemys Devices
- Schneider Twido PLCs
- Biometric Readers (Hikvision)
- Modbus
- OPC UA
- SNMP
- SCADA Telemetry
Infrastructure
- Windows Server
- IIS
- Linux
- VMware ESX
- Docker
- GitLab CI/CD
- SVN
- TeamCity
- Jira
- YouTrack
APIs & Middleware
- REST APIs
- SignalR
- RabbitMQ
- Serilog
- Polly
- Redis
- Azure Key Vault
- Postman
- Retool
AI-Assisted Engineering
- Cursor
- OpenCode
- GitHub Copilot
- ChatGPT
- Claude
- Gemini
- Grok
- Mistral
- Perplexity
- Antigravity
Security & Identity
- Access Control
- Identity Management
- Data Protection
- Risk Mitigation
- Security Scanning
- Hardening
Featured Areas
.NET / C# Development
Full-stack development with .NET Framework, .NET Core, and .NET 8. ASP.NET, WebAPI, Windows Forms, WCF.
SQL Server & T-SQL
Performance tuning, stored procedures, Reporting Services, Entity Framework, production troubleshooting.
Legacy Modernization
Safe incremental migration of .NET Framework applications to modern .NET 8+.
Industrial & IT/OT Systems
RFID, PLC, Modbus, OPC UA, biometric devices, and SCADA-style telemetry integrations.
Production Troubleshooting
Incident response and root cause analysis across application, database, and infrastructure layers.
AI-Assisted Engineering
Leveraging AI tools for code review, refactoring, documentation, and debugging workflows.
Cybersecurity & Identity
Access control, identity management, data protection, and infrastructure hardening.
DevOps & Infrastructure
Windows Server, IIS, Docker, GitLab CI/CD, and cloud service management.
Latest Tech Radar
.NET 10 Preview 1 Released with Major Performance Improvements
Microsoft released .NET 10 Preview 1 with significant runtime and JIT improvements, new C# language features, and enhanced ASP.NET Core performance metrics.
SQL Server 2025 Cumulative Update Brings Query Store Improvements for Always On
The latest cumulative update for SQL Server 2025 improves Query Store behavior in Always On Availability Groups, reducing overhead on readable secondaries.
C# 14 Language Features Land in Preview: Union Types and Enhanced Pattern Matching
C# 14 preview introduces discriminated union types and extends pattern matching with exhaustiveness checking, bringing more functional programming patterns to C#.
OPC UA Version 1.05 Released with Improved Security Model and PubSub Enhancements
The OPC Foundation released version 1.05 of the OPC UA specification with a revised security model, better support for edge-to-cloud communication, and PubSub improvements for MQTT and UDP transport.
Latest Articles
Modernizing Legacy .NET Framework Applications Safely: A Practical Checklist
A systematic approach to modernizing .NET Framework applications to .NET 8+ without disrupting production operations.
SQL Server Production Troubleshooting Checklist: What to Check When the Database Is Slow
A structured checklist for diagnosing SQL Server performance issues in production, from quick wins to deep investigation.
Featured Projects
Access Control System Modernization
Modernized a legacy access-control system integrating Hikvision biometric readers, RFID cards, and gated-community management with a .NET backend and SQL Server database.
Completed
AI-Assisted Legacy Code Analysis Toolkit
A structured methodology and supporting scripts for analyzing large legacy .NET codebases using AI tools to identify dead code, security issues, and migration risks.
In Progress
SQL Server Performance Diagnostic Toolkit
A collection of T-SQL scripts, PowerShell automation, and documentation for diagnosing and resolving SQL Server performance issues in production environments.
In Progress