![Ligia Puertas](https://jobicy.com/react/themes/app/images/avatar.jpg) Ligia Puertas # Senior .NET Developer Open to offers · Member since 23 Jul 2026 [Message](https://jobicy.com/dashboard-page.md) ShareLocationVenezuelaDesired salaryUnspecifiedWork preferenceRemote Only / Full Time, Contract, FreelanceExperience levelSenior * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI am a Senior .NET Developer with more than 15 years of experience building, maintaining, and modernizing business applications for banking, insurance, logistics, and other enterprise environments. My core specialization is the .NET ecosystem, including C#, ASP.NET Core, ASP.NET MVC, WebForms, WPF, and .NET Framework. I have extensive experience migrating legacy systems to modern architectures while improving maintainability, scalability, and performance. I have worked remotely for clients across Latin America and have contributed to projects involving REST and SOAP integrations, microservices, messaging, and database optimization. I am comfortable working across the full stack when needed, including frontend technologies, APIs, and data layers. I also have strong experience with Azure DevOps, Git-based workflows, sprint planning, backlog management, code reviews, and collaborative delivery in Scrum and Kanban environments. I adapt quickly to mixed technology stacks and have also worked with Java, Python, Angular, React, and database platforms such as SQL Server, PostgreSQL, Oracle, MySQL, and MongoDB. I am especially interested in applying Artificial Intelligence to software development. I regularly use tools such as Copilot, ChatGPT, DeepSeek, and Claude-related technologies to support coding, prompt design, and architectural review. I value clean architecture, practical problem solving, and continuous improvement. My background includes both long-term enterprise maintenance and freelance delivery, which has helped me develop a flexible, results-oriented approach to software engineering. ## Skills 44 capabilities[Angular](https://jobicy.com/talent/angular.md)[ASP.NET Core](https://jobicy.com/talent/aspnet-core.md)[ASP.NET MVC](https://jobicy.com/talent/aspnet-mvc.md)[Azure DevOps](https://jobicy.com/talent/azure-devops.md)[Bitbucket](https://jobicy.com/talent/bitbucket.md)[Bootstrap](https://jobicy.com/talent/bootstrap.md)[C#](https://jobicy.com/talent/c-sharp.md)[Crystal Reports](https://jobicy.com/talent/crystal-reports.md)[Django](https://jobicy.com/talent/django.md)[Entity Framework](https://jobicy.com/talent/entity-framework.md)[Flask](https://jobicy.com/talent/flask.md)[Git](https://jobicy.com/talent/git.md)[Gitlab](https://jobicy.com/talent/gitlab.md)[IIS](https://jobicy.com/talent/iis.md)[Java 8](https://jobicy.com/talent/java-8.md)[JavaScript](https://jobicy.com/talent/javascript.md)[jQuery](https://jobicy.com/talent/jquery.md)[Kanban](https://jobicy.com/talent/kanban.md)[KnockoutJS](https://jobicy.com/talent/knockoutjs.md)[Microservices](https://jobicy.com/talent/microservices.md)[MongoDB](https://jobicy.com/talent/mongodb.md)[MQTT](https://jobicy.com/talent/mqtt.md)[MySQL](https://jobicy.com/talent/mysql.md)[Nginx](https://jobicy.com/talent/nginx.md)[Oracle](https://jobicy.com/talent/oracle.md)[PostgreSQL](https://jobicy.com/talent/postgresql.md)[Python](https://jobicy.com/talent/python.md)[RabbitMQ](https://jobicy.com/talent/rabbitmq.md)[ReactJS](https://jobicy.com/talent/reactjs.md)[Redis](https://jobicy.com/talent/redis.md)[REST APIs](https://jobicy.com/talent/rest-apis.md)[SAP](https://jobicy.com/talent/sap.md)[Scrum](https://jobicy.com/talent/scrum.md)[SOAP](https://jobicy.com/talent/soap.md)[Sockets](https://jobicy.com/talent/sockets.md)[Spring Framework](https://jobicy.com/talent/spring-framework.md)[SQL Server](https://jobicy.com/talent/sql-server.md)[SQLAlchemy](https://jobicy.com/talent/sqlalchemy.md)[TFS](https://jobicy.com/talent/tfs.md)[TypeScript](https://jobicy.com/talent/typescript.md)[VB.NET](https://jobicy.com/talent/vbnet.md)[VBScript](https://jobicy.com/talent/vbscript.md)[Windows Services](https://jobicy.com/talent/windows-services.md)[WPF](https://jobicy.com/talent/wpf.md) ## Tech stack & tools Working toolkit ### Application Hosting [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/nginx/nginx-original.svg) Nginx](https://jobicy.com/talent?tool=nginx.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/redis/redis-original.svg) Redis](https://jobicy.com/talent?tool=redis.md) ### Data Stores [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/mongodb/mongodb-original.svg) MongoDB](https://jobicy.com/talent?tool=mongodb.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/mysql/mysql-original.svg) MySQL](https://jobicy.com/talent?tool=mysql.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/oracle/oracle-original.svg) Oracle Database](https://jobicy.com/talent?tool=oracle.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/postgresql/postgresql-original.svg) PostgreSQL](https://jobicy.com/talent?tool=postgresql.md) ### Development [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/bitbucket/bitbucket-original.svg) Bitbucket](https://jobicy.com/talent?tool=bitbucket.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/git/git-original.svg) Git](https://jobicy.com/talent?tool=git.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/gitlab/gitlab-original.svg) GitLab](https://jobicy.com/talent?tool=gitlab.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/rabbitmq/rabbitmq-original.svg) RabbitMQ](https://jobicy.com/talent?tool=rabbitmq.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/sqlalchemy/sqlalchemy-original.svg) SQLAlchemy](https://jobicy.com/talent?tool=sqlalchemy.md) ### Languages & Frameworks [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/angular/angular-original.svg) Angular](https://jobicy.com/talent?tool=angular.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/flask/flask-original.svg) Flask](https://jobicy.com/talent?tool=flask.md) ## Experience Career history ### Java 8 / Angular 19 Developer · ITSS Jun 2026 – PresentMaintaining and evolving an application for a major bank in Venezuela. Resolving bugs, implementing adjustments, and developing new functionality for small-scale extensions to existing features. Managing and resolving tickets based on business requirements. ### .NET Developer · Client in Chile Oct 2025 – Jun 2026Migrated an ASP.NET Framework 4.5 WebForms application to ASP.NET Core 9 MVC, developing the new application in parallel without impacting production. Reviewed and optimized slow queries and normalization issues in SQL Server. Redesigned critical components and modernized the UI while preserving business functionality. ### .NET Developer · ITSS Oct 2023 – Oct 2025Developed frontend interfaces for an operational control application for teller and administrative offices for a leading bank in Venezuela. Migrated legacy technology to WPF and REST APIs, improved data entry controls, and optimized performance for teller operations. ### .NET Programmer · SISTRAN Mar 2022 – Oct 2023Maintained and evolved a configurable web application for the insurance sector. Developed custom modules, performed corrective and adaptive maintenance, and used Azure DevOps for backlog management, estimation, sprint planning, code review, and merges. ### .NET Developer · Cleteci Mar 2021 – Mar 2022Maintained and evolved a web application for the insurance sector. Worked with .NET Core 3.1, microservices, MassTransit, and Redis, implementing modifications and new features following Scrum. ### .NET Developer · Costa Rica Sep 2020 – Sep 2020Developed a Windows Service in .NET C# for automatic online store stock updates. ### Python Developer · Spain May 2020 – Aug 2020Implemented an MQTT server and Python scripts for collecting people-counting data from Meraki cameras and updating a Django application for capacity control. ### Programmer · Peru Feb 2020 – Apr 2020Maintained a Windows application for restaurant inventory control, adding and modifying functionalities, validations, UI improvements, and MySQL backups. ### Programmer · Chile Jan 2020 – Jan 2020Maintained an ASP 3.0 web application for student attendance control and created or modified reports with specific filters. ### Programmer · Venezuela Dec 2019 – Dec 2019Maintained a ReactJS application and an ASP.NET WebForms application, adjusting controls and result grids. ### Programmer · Venezuela Aug 2018 – Jan 2019Developed a web application for logistics service quotations using Angular 7, REST APIs, Entity Framework, and Membership integration. ### .NET Programmer · Mexico Dec 2017 – Mar 2018Developed an application for verifying electronic invoices against the SAT system, including SOAP integration and status updates in SAP. ### .NET Programmer · 3D Link Oct 2017 – Nov 2017Provided support and maintenance for an ASP.NET MVC web application and modified a Django REST API for integration with an Angular 2 frontend. ### .NET Programmer · Campus Virtual I.B. Nov 2016 – Mar 2017Migrated ASPX controls to Telerik controls in a web application for in-person or distance learning management. ### Python Programmer · Keystone C.A. Feb 2015 – Aug 2016Developed an administrative intranet web application for distribution control. Built Flask services, web forms, and deployed to a Linux server with Nginx. ### Systems Analyst · MGI Accusys Technologies Jan 2014 – Jan 2015Maintained Windows and Classic ASP web applications for core tables, non-online processes, internet domain sales, and payment control. Consumed SOAP services and generated forms with Crystal Reports. ### Developer · Grupo Intec Soluciones Apr 2012 – Jun 2013Developed an intranet portal for employee data, news, and documents. Also performed a functional audit of a claims registration system. ### Systems Analyst · Bicentenario Banco Universal Dec 2009 – Oct 2010Maintained intranet applications and generated data extractors for migration from Central Banco Universal. ### Systems Analyst · Central Banco Universal Apr 2006 – Nov 2009Built intranet web applications for core banking processes including collections, supplier payments, cash control, check clearing, and payroll uploads using sockets and ASP.NET. ### Intern · Central Banco Universal Sep 2005 – Dec 2005Designed and developed a VB 6.0 prototype for helpdesk issue tracking, including UML and database design. ## Education Learning history ### Universidad Centroccidental Lisandro Alvarado (UCLA) Aug 1999 – Jun 2005Computer Engineer, Computer Engineering Completed a degree in Computer Engineering. This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.