Senior Fullstack Developer
Gustavo Herrera
Building robust web applications and scalable APIs for over 15 years. Specialized in Laravel, React, and modern fullstack solutions — from business automation to SaaS platforms.
Venezuela · Remote
15+
Years
333+
Repos
5.0
Rating
28
Reviews
Projects
Skills
Backend
LaravelPHP 8Node.jsPythonDjangoSpring BootRubyGo
Frontend
ReactVue.jsNext.jsAstroTypeScriptTailwind CSS
Mobile
React NativeFlutterAndroidKotlin
Databases
PostgreSQLMySQLMongoDBFirebase
DevOps & Tools
DockerKubernetesNginxJenkinsGitLinux
Experience
March 2021 - Present
Senior Director of Software Engineering
Tecnofact · Full-time · Remote
Led the transition to the CFDI 4.0 standard, ensuring fiscal compliance for 120 clients and reducing validation errors by 85%. Designed a scalable billing system architecture using Kubernetes and cloud computing, enabling 300 transactions per second without downtime. Built and optimized the core electronic billing platform with a microservices architecture using Go, MongoDB, and PostgreSQL, improving system response time by 30%. Managed the full application lifecycle with Docker image creation and Kubernetes orchestration in production environments. Developed and documented robust APIs for third-party service integration. Acted as the technical bridge between SAT regulatory requirements and product implementation.
January 2014 - Present
Senior Fullstack Developer
Freelancer — Independent
10+ years delivering web applications for international clients on Freelancer.com. Specialized in backend development with Laravel and REST APIs, integrating billing platforms, accounting systems, and SaaS solutions. Built AI company landing pages, field management systems, Web3/blockchain platforms, and electronic billing systems. Rated 5.0 stars across 28 reviews with 100% on-time delivery.
Posts
El ecosistema del desarrollo de software está viviendo una de sus transformaciones más profundas. Durante décadas...
About me
I'm Gustavo Herrera, a Senior Fullstack Developer from Venezuela with over 15 years of experience building web applications and automating business processes.
I specialize in backend development with Laravel and scalable REST APIs, integrating complex systems like billing platforms, accounting workflows, and SaaS solutions. On the frontend I work with React, Vue.js, Next.js, and Astro.
I'm passionate about open source, sharing knowledge, and building tools that make developers' lives easier. I started programming in 2005 and have never stopped learning.
Contact
Available for freelance projects and full-time remote opportunities. Feel free to reach out.
gustavoh.2312@gmail.com freelancer.com/u/gustavoherrera84