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I’m Andrés Villenas a full stack software engineer with 10+ years of experience building and delivering enterprise web applications for US-based clients. I work across the stack with React and Next.js on the front end, and microservices-based back ends with REST APIs, SQL, and strong .NET/C# foundations. I also lead architecture and engineering execution—designing cloud-native systems and setting quality standards while mentoring distributed teams. Based in Ecuador, I collaborate effectively in agile, async, remote-first environments and help teams translate business requirements into scalable technical solutions on Microsoft Azure and AWS.…I’m Andrés Villenas a full stack software engineer with 10+ years of experience building and delivering enterprise web applications for US-based clients. I work across the stack with React and Next.js on the front end, and microservices-based back ends with REST APIs, SQL, and strong .NET/C# foundations. I also lead architecture and engineering execution—designing cloud-native systems and setting quality standards while mentoring distributed teams. Based in Ecuador, I collaborate effectively in agile, async, remote-first environments and help teams translate business requirements into scalable technical solutions on Microsoft Azure and AWS.

Avilens Avilénas

Full Stack Developer, Software Engineer, DevOps Developer, +2

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I’m Andrés Villenas a full stack software engineer with 10+ years of experience building and delivering enterprise web applications for US-based clients. I work across the stack with React and Next.js on the front end, and microservices-based back ends with REST APIs, SQL, and strong .NET/C# foundations. I also lead architecture and engineering execution—designing cloud-native systems and setting quality standards while mentoring distributed teams. Based in Ecuador, I collaborate effectively in agile, async, remote-first environments and help teams translate business requirements into scalable technical solutions on Microsoft Azure and AWS.…I’m Andrés Villenas a full stack software engineer with 10+ years of experience building and delivering enterprise web applications for US-based clients. I work across the stack with React and Next.js on the front end, and microservices-based back ends with REST APIs, SQL, and strong .NET/C# foundations. I also lead architecture and engineering execution—designing cloud-native systems and setting quality standards while mentoring distributed teams. Based in Ecuador, I collaborate effectively in agile, async, remote-first environments and help teams translate business requirements into scalable technical solutions on Microsoft Azure and AWS.

Available to hire

I’m Andrés Villenas a full stack software engineer with 10+ years of experience building and delivering enterprise web applications for US-based clients. I work across the stack with React and Next.js on the front end, and microservices-based back ends with REST APIs, SQL, and strong .NET/C# foundations.

I also lead architecture and engineering execution—designing cloud-native systems and setting quality standards while mentoring distributed teams. Based in Ecuador, I collaborate effectively in agile, async, remote-first environments and help teams translate business requirements into scalable technical solutions on Microsoft Azure and AWS.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

Tech Lead / Senior Software Engineer at Simple[A]

August 1, 2019 - Present

Led a distributed team (3–4 senior engineers) delivering full-stack enterprise web solutions for US-based clients using React, Next.js, Node.js, and cloud platforms. Designed and implemented scalable full-stack architecture spanning the front end (React/Next.js), back end (microservices and REST APIs), and CMS-driven platforms (Umbraco, Experience by Kentico), reducing time-to-market for new features and improving production quality through standardized code review and engineering practices. Directed cloud-native system design on Microsoft Azure and AWS, including Docker containerization, CI/CD with Azure DevOps and GitHub Actions, and Infrastructure as Code practices. Collaborated closely with product, design, QA, and stakeholders to translate requirements into maintainable technical solutions in agile sprint-based environments; integrated AI-assisted development workflows to improve delivery speed and code quality.

Technical Lead at Vern dale

December 1, 2017 - July 31, 2019

Led a small distributed team (2 engineers + Tech Lead) managing multiple concurrent client projects while working remotely from Ecuador and collaborating with US-based stakeholders across time zones. Contributed hands-on full-stack development across back end (C#, ASP.NET Core, SQL Server, REST APIs) and front end (React, Angular, TypeScript). Designed and optimized database schemas and queries, improving application performance and maintaining high reliability and stability. Established communication protocols, code standards, and documentation practices to keep remote teams cohesive and productive in fast-paced asynchronous environments.

Software Engineer → Technical Lead at Oshyn

November 1, 2012 - December 31, 2017

Progressed from Software Engineer to Technical Lead across multiple enterprise projects. Designed and delivered a full-stack platform and mobile applications serving 500+ medical professionals and supporting 10K+ daily active users with high availability requirements. Architected scalable back end solutions using microservices patterns, RESTful APIs, and identity-relational database design to improve modularity, maintainability, and system resilience. Conducted comprehensive code reviews and mentored junior engineers, establishing coding standards and architectural best practices while collaborating with stakeholders and product/design teams to gather requirements and deliver robust solutions on schedule.

Software Engineer at Cobis corp Ecuador

July 1, 2010 - October 31, 2012

Started as a junior developer and progressed to a semi-senior role within the engineering team. Developed and maintained mission-critical banking software used by Ecuador’s public national banks, ensuring compliance with financial security standards and data integrity requirements. Built and supported applications processing millions of daily transactions, emphasizing reliability, security, regulatory compliance, and performance optimization. Collaborated across cross-functional teams to implement features and resolve critical production issues in time-sensitive banking environments while maintaining high availability and system stability.