Alonso Blanco
Software Engineer | Senior .NET Developer | Full Stack Engineer | WordPress SpecialistCosta Rica
Professional Summary
Senior Software Engineer with 18+ years of experience designing, developing, integrating, and supporting enterprise software solutions for local and international clients. Specialized in Microsoft technologies, .NET Framework, web applications, electronic payment integrations, e-commerce systems, mobile applications, and software integrations.
Microsoft Certified MCSA Web Applications professional with strong experience in full-stack development, software architecture, API integrations, support engineering, and agile development environments.
Technical Skills
Backend
.NET, .NET Core, .NET Framework, Web API, C#, Laravel, PHP, Python
Frontend
JavaScript, HTML5, CSS3, Ionic Framework, React, React Native, Expo, Bootstrap, ASP.NET MVC, ASP.NET Web API, WordPress
Databases & Tools
SQL Server, MySQL, Postgres, JBoss, Tomcat, Maven, Ant, Selenium, JIRA
AI
Claude
Cloud
AWS: manage small AWS infrastructures, create EC2 instances and manage clusters, apply Load Balancers, SSLs, manage domains on Route 53, create and manage AWS Lambdas on Python.
Azure: manage small Azure infrastructures, using VMs, WAFs, App Services and Azure Functions.
Other Areas
E-Commerce, Electronic Payments, Fiscal Billing Integrations, Mobile Applications, Dataphone/POS integrations (Ingenico, Verifone, Kinpos, IM30, Advanced Mobile Payment, ZVT Protocol, MDB Protocol and more), IoT
Professional Experience
Freelance Software Engineer — Alonso Blanco Freelancer | Apr 2012 – Present
- Independent software consultant providing full-stack development services.
- Developed enterprise web and mobile solutions using .NET and modern web technologies.
- Designed integrations with external systems and APIs.
Designer and Web Developer — Agency Maison | Sept 2024 – Present
- Website programming, optimization, design and maintenance.
- Design HTML mailers.
Support Engineer — Logistica Internacional (CrBox.cr)| Jan 2023 – Present
- Website programming, optimization, design and maintenance.
- Support and maintain existing systems.
Software Engineer — Accesos Automáticos S.A. | Jan 2016 – Present
- Developed enterprise software integrations for parking, access control, payment and invoicing systems.
- Implemented access control systems and automation solutions.
E-Commerce Software Developer — Datality | Jul 2021 – Dec 2023
- Developed and maintained e-commerce software components.
Senior Software Engineer — Sentient Decision Science | Oct 2021 – Jul 2022
- Support and maintenance of existing systems.
- Daily support in US business hours.
Software & Support Engineer — TeenSmart Internacional | Feb 2015 – Oct 2021
- Maintained and supported enterprise systems.
- Developed mobile applications.
- Provided IT support.
Education
Bachelor's Degree, Software Engineering
Universidad Latina de Costa Rica
Software Engineering
Cenfotec
Technical Degree, Business Administration
Instituto Tecnológico de Costa Rica
Certifications
- ✓ Microsoft Certified Solutions Associate (MCSA): Web Applications
- ✓ Developing ASP.NET MVC Web Applications
- ✓ Programming in HTML5 with JavaScript and CSS3
- ✓ Programming in C#
- ✓ HTML5, CSS3 & JavaScript Specialist
Languages
Spanish
Native
English
Professional Working Proficiency
Let's Work Together
Email us or send us a message using our contact form.