Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I'm Sergio López, a full-stack software engineer with over 12 years of experience building scalable web, mobile, and cloud applications. I've had the opportunity to work at Amazon and various remote companies, developing impactful solutions in gaming, e-commerce, and investment platforms. I'm passionate about creating robust and user-centric systems from the ground up. I enjoy working with multiple technologies such as React, Angular, Node.js, Python, and cloud platforms like AWS and Azure. My background in game development and integrating blockchain technology with smart contracts adds a unique edge to my skill set. I thrive in collaborative environments and am always eager to contribute to innovative projects.…Hi, I'm Sergio López, a full-stack software engineer with over 12 years of experience building scalable web, mobile, and cloud applications. I've had the opportunity to work at Amazon and various remote companies, developing impactful solutions in gaming, e-commerce, and investment platforms. I'm passionate about creating robust and user-centric systems from the ground up. I enjoy working with multiple technologies such as React, Angular, Node.js, Python, and cloud platforms like AWS and Azure. My background in game development and integrating blockchain technology with smart contracts adds a unique edge to my skill set. I thrive in collaborative environments and am always eager to contribute to innovative projects.

Sergio López

Full Stack Developer, Game Developer, Cloud Developer





Hi, I'm Sergio López, a full-stack software engineer with over 12 years of experience building scalable web, mobile, and cloud applications. I've had the opportunity to work at Amazon and various remote companies, developing impactful solutions in gaming, e-commerce, and investment platforms. I'm passionate about creating robust and user-centric systems from the ground up. I enjoy working with multiple technologies such as React, Angular, Node.js, Python, and cloud platforms like AWS and Azure. My background in game development and integrating blockchain technology with smart contracts adds a unique edge to my skill set. I thrive in collaborative environments and am always eager to contribute to innovative projects.…Hi, I'm Sergio López, a full-stack software engineer with over 12 years of experience building scalable web, mobile, and cloud applications. I've had the opportunity to work at Amazon and various remote companies, developing impactful solutions in gaming, e-commerce, and investment platforms. I'm passionate about creating robust and user-centric systems from the ground up. I enjoy working with multiple technologies such as React, Angular, Node.js, Python, and cloud platforms like AWS and Azure. My background in game development and integrating blockchain technology with smart contracts adds a unique edge to my skill set. I thrive in collaborative environments and am always eager to contribute to innovative projects.

Available to hire

Hi, I’m Sergio López, a full-stack software engineer with over 12 years of experience building scalable web, mobile, and cloud applications. I’ve had the opportunity to work at Amazon and various remote companies, developing impactful solutions in gaming, e-commerce, and investment platforms. I’m passionate about creating robust and user-centric systems from the ground up.

I enjoy working with multiple technologies such as React, Angular, Node.js, Python, and cloud platforms like AWS and Azure. My background in game development and integrating blockchain technology with smart contracts adds a unique edge to my skill set. I thrive in collaborative environments and am always eager to contribute to innovative projects.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Senior Software Engineer at Amazon

May 1, 2024 - Present

Increased Amazon's Supply Chain efficiency by 15% via key feature development using React, Redux, TypeScript, Node.js, and AWS for faster deliveries and improved customer satisfaction. Built and maintained the Amazon StoreBuilder web application to streamline store creation by 20%, empowering sellers. Developed high performance microservices with Node.js and Python optimized for scalability. Created an employee onboarding platform using Angular and Django to centralize training materials, increasing productivity. Architected scalable microservices infrastructure with AWS Lambda, API Gateway, and DynamoDB for high availability. Participated actively throughout SDLC to ensure coordination across teams.

Senior Frontend Developer at Sourcescrub

May 1, 2024 - July 19, 2025

Designed and implemented enterprise-grade features for an AI-driven investment research platform using Angular and TypeScript, improving data curation workflows and user engagement. Optimized frontend performance, reducing load times by 25% and improving responsiveness. Integrated Angular frontend with Azure backend services, enabling seamless real-time data delivery and scalable service coordination. Improved UI responsiveness and page load time by 30% through component refactoring and tuning.

Senior Frontend Developer at Div Element

October 1, 2023 - July 19, 2025

Delivered scalable frontend solutions across multiple industries using TypeScript, React, Next.js, and Ionic for web and hybrid mobile applications. Built modular, maintainable components streamlining user experiences for B2B and B2C apps. Engineered full-stack features with Node.js and Python integrating AWS cloud services for performance. Increased codebase maintainability by 40% by refactoring legacy JavaScript to modular TypeScript components.

Game & Full-Stack Developer at Inject X Games

January 1, 2023 - July 19, 2025

Led development of a browser-based multiplayer game with Phaser 3, creating real-time mechanics, asset pipelines, and game loop architecture using JavaScript and TypeScript. Transitioned the game to hybrid mobile app with Capacitor, expanding platform reach on iOS and Android. Reduced asset loading times by 35%, improving gameplay and retention. Engineered backend multiplayer logic and APIs with Node.js and Python. Integrated crypto-based smart contract monetization, deployed via AWS EC2 and Docker. Collaborated with designers and testers for gameplay refinement and launched public beta.