
Juan Pena
Medellín, Colombia
Juan Pena
Web and cloud developer
Category : Web development
I'm a senior web and cloud developer with 15+ years building custom, large-scale web applications and cloud solutions for businesses across international markets. I design and deliver software end-to-end — from architecture and API design through implementation, testing, deployment, and production support — so you get something that works reliably, scales, and is easy to maintain.
My core stack is .NET / C# on the backend (ASP.NET Core, Web APIs, microservices) with Angular and React on the front end, all deployed on Microsoft Azure (App Services, Functions, Service Bus, Blob Storage, Azure SQL). I'm equally comfortable integrating with existing systems and databases (SQL Server, plus platforms like Java, Node.js, Python, and BI tools) and building something new from scratch.
Having worked as a solutions architect for years, I bring more than just code: I think about security, performance, and cost, communicate clearly, and keep projects on track. I also use AI-assisted development tools to move faster without cutting corners on quality. I've delivered for US-based clients across distributed teams, so remote collaboration and clear updates are second nature.
Whether you need a new web app, a cloud migration, an API or integration, performance fixes, or ongoing development support, I'd be glad to help. Let's talk about what you're building.
Skills:
.NET · C# · ASP.NET Core · Web API · Azure · Angular · React · REST APIs · Microservices · SQL Server / Azure SQL · Cloud Architecture · System Integration · CI/CD · Full-Stack Development
My core stack is .NET / C# on the backend (ASP.NET Core, Web APIs, microservices) with Angular and React on the front end, all deployed on Microsoft Azure (App Services, Functions, Service Bus, Blob Storage, Azure SQL). I'm equally comfortable integrating with existing systems and databases (SQL Server, plus platforms like Java, Node.js, Python, and BI tools) and building something new from scratch.
Having worked as a solutions architect for years, I bring more than just code: I think about security, performance, and cost, communicate clearly, and keep projects on track. I also use AI-assisted development tools to move faster without cutting corners on quality. I've delivered for US-based clients across distributed teams, so remote collaboration and clear updates are second nature.
Whether you need a new web app, a cloud migration, an API or integration, performance fixes, or ongoing development support, I'd be glad to help. Let's talk about what you're building.
Skills:
.NET · C# · ASP.NET Core · Web API · Azure · Angular · React · REST APIs · Microservices · SQL Server / Azure SQL · Cloud Architecture · System Integration · CI/CD · Full-Stack Development
Working hours
- Monday:08h00 To 18h00
- Tuesday:08h00 To 18h00
- Wednesday:08h00 To 18h00
- Thursday:08h00 To 18h00
- Friday:08h00 To 18h00
- Saturday:Not available
- Sunday:Not available
- I can create web app fast and tested and scalable50 $ - Per hourI'm a senior web and cloud developer with 15+ years building custom, large-scale web applications and cloud solutions for businesses across international markets. I design and deliver software ...
Cloud Application Architect / Enterprise Architect / Technical Engagement Manager
• Lead and mentor development and architecture teams — coaching engineers on technical craft and personal growth —
while setting coding standards and technical direction.
• Define technical architecture, design patterns, and implementation standards for critical applications, balancing scalability,
performance, and maintainability.
• Establish verification and quality gates — code reviews, automated testing, and release checklists — to keep delivery
consistent across teams.
• Stay hands-on across architecture and implementation decisions, guiding technical approach for multiple teams and
applications.
• Engage directly with directors and C-level stakeholders to align technical priorities, manage expectations, and accelerate
time-to-market for critical product releases.
• Collaborate with globally deployed development teams across India, Vietnam, Europe, and South America to build custom
solutions and manage delivery expectations for US-based clients.
• Apply AI-assisted and agentic coding tools (GitHub Copilot, Claude, and similar) to improve speed and velocity for myself
and my teams, always verifying output and tailoring best practices to client expectations.
• Lead and mentor development and architecture teams — coaching engineers on technical craft and personal growth —
while setting coding standards and technical direction.
• Define technical architecture, design patterns, and implementation standards for critical applications, balancing scalability,
performance, and maintainability.
• Establish verification and quality gates — code reviews, automated testing, and release checklists — to keep delivery
consistent across teams.
• Stay hands-on across architecture and implementation decisions, guiding technical approach for multiple teams and
applications.
• Engage directly with directors and C-level stakeholders to align technical priorities, manage expectations, and accelerate
time-to-market for critical product releases.
• Collaborate with globally deployed development teams across India, Vietnam, Europe, and South America to build custom
solutions and manage delivery expectations for US-based clients.
• Apply AI-assisted and agentic coding tools (GitHub Copilot, Claude, and similar) to improve speed and velocity for myself
and my teams, always verifying output and tailoring best practices to client expectations.
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