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Hi, I'm Angel Contreras, a seasoned Full-Stack Developer with over 9 years of experience specializing in JavaScript and TypeScript. I've had the pleasure of working on diverse projects in fintech and automation, crafting scalable frontend and backend systems that deliver excellent performance and user experiences. I’m passionate about building secure and efficient software solutions and enjoy collaborating with global teams to bring innovative ideas to life. Whether it’s integrating blockchain technology or optimizing RESTful APIs, I thrive on solving complex problems with modern frameworks and cloud technologies.…Hi, I'm Angel Contreras, a seasoned Full-Stack Developer with over 9 years of experience specializing in JavaScript and TypeScript. I've had the pleasure of working on diverse projects in fintech and automation, crafting scalable frontend and backend systems that deliver excellent performance and user experiences. I’m passionate about building secure and efficient software solutions and enjoy collaborating with global teams to bring innovative ideas to life. Whether it’s integrating blockchain technology or optimizing RESTful APIs, I thrive on solving complex problems with modern frameworks and cloud technologies.

Angel Contreras

Full Stack Developer, Cloud Developer, DevOps Developer, +2

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Hi, I'm Angel Contreras, a seasoned Full-Stack Developer with over 9 years of experience specializing in JavaScript and TypeScript. I've had the pleasure of working on diverse projects in fintech and automation, crafting scalable frontend and backend systems that deliver excellent performance and user experiences. I’m passionate about building secure and efficient software solutions and enjoy collaborating with global teams to bring innovative ideas to life. Whether it’s integrating blockchain technology or optimizing RESTful APIs, I thrive on solving complex problems with modern frameworks and cloud technologies.…Hi, I'm Angel Contreras, a seasoned Full-Stack Developer with over 9 years of experience specializing in JavaScript and TypeScript. I've had the pleasure of working on diverse projects in fintech and automation, crafting scalable frontend and backend systems that deliver excellent performance and user experiences. I’m passionate about building secure and efficient software solutions and enjoy collaborating with global teams to bring innovative ideas to life. Whether it’s integrating blockchain technology or optimizing RESTful APIs, I thrive on solving complex problems with modern frameworks and cloud technologies.

Available to hire

Hi, I’m Angel Contreras, a seasoned Full-Stack Developer with over 9 years of experience specializing in JavaScript and TypeScript. I’ve had the pleasure of working on diverse projects in fintech and automation, crafting scalable frontend and backend systems that deliver excellent performance and user experiences.

I’m passionate about building secure and efficient software solutions and enjoy collaborating with global teams to bring innovative ideas to life. Whether it’s integrating blockchain technology or optimizing RESTful APIs, I thrive on solving complex problems with modern frameworks and cloud technologies.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Full-Stack Developer at AstroSirens

April 1, 2023 - Present

Led full-stack development for Strucalc, improving construction calculations with TypeScript and Svelte, reducing calculation times by 40%. Developed frontend architecture and scaled NapaSociety to support over 2 million daily interactions using React and Node.js. Enhanced platform security by integrating blockchain features, improving security by 50%. Designed scalable RESTful APIs and responsive frontend components to ensure high availability and efficient user interaction, increasing system uptime by 30%. Engineered real-time data pipelines using Kafka, increasing user engagement by 40%.

Full-Stack Developer at Cint

March 31, 2023 - July 10, 2025

Led design and deployment of API v2 and frontend for Cint Exchange using TypeScript and Next.js, reducing API latency by 25% and improving data handling efficiency by 50%. Developed RESTful APIs and responsive frontend components for seamless data exchange. Integrated Redis caching and rate-limiting, optimizing performance and reducing response times by 30%. Improved security with OAuth2 for authentication flows, ensuring data privacy compliance. Implemented horizontal scaling and load balancing to increase reliability by 40%. Automated CI/CD pipelines using Docker, Kubernetes, and AWS, improving deployment frequency by 35% and reducing downtime.

Full-Stack Developer at Trimble

June 30, 2018 - July 10, 2025

Integrated Trimble's 3D Visualization API with TypeScript and Angular, cutting rendering times by 80%. Architected license management system for subscription handling, improving system reliability and reducing issues by 25%. Implemented secure authentication and encryption ensuring 100% compliance with security standards. Designed subscription billing automation improving revenue flow and reducing manual errors by 30%. Deployed cloud-based AWS solutions with optimized frontend performance. Established CI/CD pipelines with Docker and Kubernetes, reducing deployment errors by 20%.

Senior Full-Stack Developer at AstroSirens

April 1, 2023 - Present

Spearheaded full-stack development for Strucalc using TypeScript and Svelte, improving calculation times by 40%. Scaled NapaSociety, a crypto social media platform, using React and Node.js to handle 2 million+ daily interactions and implemented blockchain integration increasing security by 50%. Designed scalable RESTful APIs and real-time data pipelines with Kafka, enhancing system uptime by 30% and user engagement by 40%.

Full-Stack Developer at Cint

March 31, 2023 - July 10, 2025

Led API v2 and frontend redesign using TypeScript and Next.js, reducing latency by 25% and increasing data handling efficiency by 50%. Developed RESTful APIs and frontend components for data exchange, integrated Redis caching and rate-limiting, and implemented OAuth2 for secure authentication. Enhanced platform reliability by 40% via horizontal scaling and automated CI/CD pipelines with Docker, Kubernetes, and AWS, improving deployment frequency by 35%.

Full-Stack Developer at Trimble

June 30, 2018 - July 10, 2025

Integrated Trimble's 3D Visualization API with Angular and TypeScript, cutting rendering time by 80%. Developed license management and secure authentication systems, ensuring compliance and reducing licensing issues by 25%. Automated subscription billing, improving revenue flow by 30%. Designed AWS cloud solutions and established CI/CD pipelines with Docker and Kubernetes to improve deployment efficiency by 20%.