I am a Full Stack Engineer with 8 years of experience architecting and delivering complex, mission-critical web applications. I specialize in .NET Core, ASP.NET, and modern JavaScript frameworks, with a proven track record optimizing large-scale systems and leading high-performing teams. I have successfully implemented microservices architectures and cloud integrations, resulting in measurable performance gains. I am recognized for driving innovation and elevating engineering processes, dedicated to building robust, scalable products for forward-thinking U.S.-based companies.

Carlos Teo

I am a Full Stack Engineer with 8 years of experience architecting and delivering complex, mission-critical web applications. I specialize in .NET Core, ASP.NET, and modern JavaScript frameworks, with a proven track record optimizing large-scale systems and leading high-performing teams. I have successfully implemented microservices architectures and cloud integrations, resulting in measurable performance gains. I am recognized for driving innovation and elevating engineering processes, dedicated to building robust, scalable products for forward-thinking U.S.-based companies.

Available to hire

I am a Full Stack Engineer with 8 years of experience architecting and delivering complex, mission-critical web applications. I specialize in .NET Core, ASP.NET, and modern JavaScript frameworks, with a proven track record optimizing large-scale systems and leading high-performing teams. I have successfully implemented microservices architectures and cloud integrations, resulting in measurable performance gains. I am recognized for driving innovation and elevating engineering processes, dedicated to building robust, scalable products for forward-thinking U.S.-based companies.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
See more

Work Experience

Senior Full Stack Engineer at Studio Graphene
April 1, 2023 - Present
Designed and developed a mission-critical customer-facing system using .NET Core, improving response times by 30%. Created and maintained database schemas and API designs leading to 50% reduction in code maintenance time. Collaborated with developers to deliver multiple client projects on time and budget. Spearheaded architecture and development of next-generation SaaS platform featuring seamless scalability and high availability for a global user base. Orchestrated migration from monolithic codebase to microservices, streamlining deployments and reducing infrastructure overhead. Led end-to-end integration of payment, communication, and cloud services (Stripe, Twilio, AWS), expanding functionality and enhancing customer experience. Cultivated a culture of technical excellence through mentoring, code reviews, and knowledge sharing, strengthening the engineering team. Partnered with product and design teams to deliver features consistently meeting user needs and exceeding business goals.
Full Stack Engineer at UbbU Lisbon
April 1, 2023 - August 21, 2025
Designed and developed a web application using ASP.NET MVC, increasing user engagement by 25%. Implemented Git source control for team collaboration, reducing merge conflicts by 50%. Designed and implemented unit testing, increasing code coverage by 70%. Developed high-performance web applications using React and Node.js, ensuring robust functionality and maintainable code. Developed RESTful APIs and implemented real-time data processing powering interactive and data-rich interfaces. Worked closely with stakeholders to translate complex business requirements into intuitive, user-friendly solutions. Contributed to multiple high-impact releases, improving product quality and customer satisfaction.
Software Developer at Relive Lisbon
October 1, 2020 - August 21, 2025
Developed a real-time data application using C#, increasing data processing speed by 40%. Collaborated with developers across multiple projects concurrently, boosting project completion rate by 20%. Implemented an Object-Relational Mapper (ORM), reducing database query time by 30%. Assisted in developing e-commerce platforms using Laravel. Optimized database queries and application performance.
Senior Full Stack Engineer at Studio Graphene Remote
April 1, 2023 - Present
Designed and developed a mission-critical customer-facing system using .NET Core, resulting in 30% faster response times. Created and maintained databases schema and API design, reducing code maintenance time by 50%. Collaborated with a team of developers to produce customer-facing production code for multiple clients on time and within budget. Spearheaded the architecture and development of a next-generation SaaS platform, enabling seamless scalability and high availability for a global user base. Orchestrated the migration from a monolithic codebase to a microservices architecture, streamlining deployments and reducing infrastructure overhead. Led end-to-end integration of payment, communication, and cloud services (Stripe, Twilio, AWS) to expand functionality and improve customer experience. Cultivated a culture of technical excellence through mentoring, code reviews, and knowledge-sharing sessions, resulting in a stronger and more cohesive engineering team. Partnered with product a
Full Stack Engineer at Ubbü Lisbon
April 1, 2023 - August 21, 2025
Designed and developed a web application using ASP.NET MVC resulting in a 25% increase in user engagement. Implemented Git source control for team collaboration, resulting in a 50% reduction in merge conflicts. Designed and implemented unit testing resulting in a 70% increase in code coverage. Designed and delivered high-performance web applications using React and Node.js, ensuring robust functionality and clean, maintainable code. Developed RESTful APIs and implemented real-time data processing to power interactive and data-rich interfaces. Worked closely with stakeholders to translate complex business requirements into intuitive, user-friendly solutions. Contributed to multiple high-impact releases, driving measurable improvements in product quality and customer satisfaction.
Software Developer at Relive Lisbon
October 1, 2020 - August 21, 2025
Developed a real-time data application using C# resulting in a 40% increase in data processing speed. Collaborated with a team of developers to handle multiple projects concurrently, resulting in a 20% increase in project completion rate. Implemented an Object-Relational Mapper (ORM) resulting in a 30% reduction in database query time. Assisted in developing e-commerce platforms using Laravel. Optimized database queries and improved application performance.

Education

Bachelor's in Computer Science at Catholic University of Portugal
November 1, 2013 - November 1, 2017
Bachelor’s in Computer Science at Catholic University of Portugal
November 1, 2013 - November 1, 2017

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
See more