Hi There! 👋🏻
Sivan Wolberg
Full Stack Developer
15+ Years Experience | React | Node.js | Python | LangChain
Why Work With Me?
I don't just write code — I deliver results. With 15+ years of hands-on experience, I've helped startups scale from MVP to millions of users, and enterprises modernize legacy systems into AI-powered platforms. My clients get clean, production-ready code that ships on time and performs under pressure.
100% Job Success on Upwork with Top Rated Plus status
Expert in React, Node.js, Python & AI integration
From concept to deployment — full lifecycle delivery
My Services
Full-Stack Development
React, Next.js, Node.js, TypeScript - Building modern and robust web applications
My Skills
What They Say About Me
Reviews from satisfied clients on Upwork
"It was a pleasure working with Sivan Wolberg. He quickly understood our web app setup and was very responsive in fixing bugs and adding new features. His work was efficient and professional."
Web App Specialist - Node.js/React Project
Oct 2025
"Excellent full-stack developer with deep knowledge of modern technologies. Communication was clear and deliverables were always on time. Highly recommended for complex projects."
Full-Stack Developer for Social App
Jun 2025
"Great experience working with Sivan on our marketing platform. Strong technical skills combined with good understanding of business requirements. Would definitely work with again."
Full-Stack Developer for Marketing Platform
Mar 2025
My Experience
NICE
Senior Front End Engineer
Developed hybrid applications for a global contact center platform. Led legacy system migrations and improved code quality with automated testing.
DBmaestro
Full Stack Engineer
Built database management tools for DevOps teams. Developed features using the MEAN stack with cloud deployment on AWS.
Bidalgo
Full Stack Engineer
Built marketing analytics platform for Facebook advertisers. Developed end-to-end solutions handling millions of data points daily.
Fuga Technologies
Full Stack Engineer
Built music distribution and e-commerce platforms. Led modernization from PHP to JavaScript frameworks with AWS infrastructure.
Delanet
Backend Engineer
Developed high-traffic web applications with optimized database performance. Ensured PCI compliance and system security.
Time Tunnel
CTO
Led technology strategy and development team. Managed web and desktop projects while driving business growth initiatives.
Xplore
Back End Team Lead
Managed development team building enterprise applications. Delivered streaming solutions and multi-tier architecture systems.
Adgency
PHP Web Developer
Built websites and internal management systems. Handled server administration and web service integrations.
Let's Talk
Have a project? Let's build something amazing together!