You will get review your backend, API, or AI architecture and give you a clear plan

Sivan W.Status: Offline
Sivan W. Sivan W.
4.8
Top Rated

Let a pro handle the details

Buy Web Application Programming services from Sivan, priced and ready to go.
Sivan W.Status: Offline
Sivan W. Sivan W.
4.8
Top Rated

Let a pro handle the details

Buy Web Application Programming services from Sivan, priced and ready to go.

Project details

I help founders, startups, and product teams make better technical decisions before they waste time or budget on the wrong implementation path.

In this consultation, I review your backend architecture, API design, full-stack setup, or AI integration idea and give you practical guidance based on your current stage, constraints, and goals. This is a good fit if you need help planning a new product, improving an existing system, choosing between technologies, or solving architecture and scalability issues.

I work across backend and full-stack systems with technologies like Node.js, NestJS, React, PostgreSQL, MongoDB, FastAPI, Python, AWS, and API integrations. I can also help you evaluate AI features, LLM integrations, automation workflows, and production-readiness for AI-powered products.

You will leave with clearer next steps, better technical direction, and actionable recommendations you can use immediately.
Programming Languages
JavaScript, Python, TypeScript
Coding Expertise
Localization, Performance Optimization, Security
What's included
Service Tiers Starter
$59
Standard
$119
Advanced
$179
Delivery Time 1 day 1 day 3 days
Number of Revisions
000
Number of Pages
000
Design Customization
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Content Upload
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Responsive Design
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Source Code
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Frequently asked questions

4.8
5 reviews
80% Complete
20% Complete
1% Complete
(0)
1% Complete
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1% Complete
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TS

Tarun S.
4.00
Mar 13, 2026
60 minute consultation

RH

Roi H.
5.00
Dec 17, 2025
Web App Specialist Needed for Node.js/React Project It was a pleasure collaborating with Sivan Wolberg, who demonstrated a deep technical understanding of our web app from the start. He was consistently responsive, efficiently tackling bug fixes and implementing new features while ensuring every delivery was reliable and on time.

RL

Rotem L.
5.00
Dec 12, 2025
Mobile App Development Very smooth collaboration. Sivan asked the right questions, helped shape the plan, and executed quickly. He kept me updated consistently and delivered a solid end-to-end result.

IR

Israel R.
4.85
Jun 3, 2025
Full-Stack Developer for Social App

AA

Adam Joseph A.
5.00
Mar 18, 2025
Full-Stack Developer for Innovative Marketing Science Platform
Sivan W.Status: Offline

About Sivan

Sivan W.Status: Offline
Agentic developer | GO , Rust, node, Python | LLM, APIs, CrewAi
100% Job Success
4.8  (5 reviews)
Haifa, Israel - 9:15 pm local time
I help startups, SaaS companies, and growing businesses build production-ready web applications, backend systems, automation workflows, API integrations, and AI-powered product features.

I’m a Full Stack Developer with a strong backend-first mindset. I build scalable SaaS platforms, custom web applications, dashboards, admin panels, internal tools, APIs, databases, and automation systems designed for real business use not just demos.

I can help you with:

• Full-stack web application development
• SaaS platform development
• Backend architecture and API design
• React and Next JS frontend development
• Node JS, NestJS, TypeScript, Python, and FastAPI development
• PostgreSQL and MongoDB database systems
• Admin dashboards and internal tools
• Third-party API integrations
• Webhooks and data synchronization
• Make workflow automation
• n8n workflow automation
• Base44 app building and integrations
• AI assistants and AI-powered workflows
• Business process automation
• Debugging, refactoring, scaling, and modernization

I work with both custom-code systems and automation platforms. That means I can build a complete SaaS application from scratch, improve an existing product, connect multiple tools through APIs, or create automated workflows using Make, n8n, Base44, webhooks, and backend services.

On the AI side, I build practical AI features inside real products and workflows. This includes AI assistants, chat-based tools, internal copilots, knowledge-based systems, AI automations, and agent-style workflows connected to actual business processes.

My focus is simple: build software that is useful, stable, maintainable, and aligned with your business goals.

My core technologies include:

Node JS, NestJS, TypeScript, React, Next JS, Python, FastAPI, PostgreSQL, MongoDB, c#, go, rust, Docker, AWS, REST APIs, Make, n8n, Base44, webhooks, automation systems, and AI / LLM integrations.

Clients usually work with me when they need someone who can understand the full picture backend logic, frontend features, databases, integrations, automation, AI functionality, and long-term maintainability.

What you can expect when working with me:

• Clean, maintainable, production-ready code
• Strong backend and full-stack engineering
• Practical API and automation experience
• Make, n8n, and Base44 workflow support
• AI implementation focused on real use cases
• Clear communication and structured execution
• Problem-solving with both technical and business context
• Reliable delivery with attention to stability and usability

I can help you build a new platform, improve an existing system, add automation, integrate APIs, connect AI features, or solve technical problems inside your current product.

Send me a message and I’ll be happy to discuss your project, your current technical situation, and the best next step.

Steps for completing your project

After purchasing the project, send requirements so Sivan can start the project.

Delivery time starts when Sivan receives requirements from you.

Sivan works on your project following the steps below.

Revisions may occur after the delivery date.

Project review

You send your requirements, questions, current stack, and any relevant links or screenshots. I review the details before the session.

Live consultation call

We meet for the selected consultation session and go through your product, architecture, blockers, and technical options.

Review the work, release payment, and leave feedback to Sivan.