I will architect and build your saas, ai or custom web app


About this gig
Have an idea, prototype, or existing product you want to turn into real software?
I help founders and businesses design and build production-ready SaaS, AI applications, custom platforms, dashboards, client portals, internal tools, APIs, and automation systems.
Whether you're starting from an idea, an AI-built prototype, or an existing application, I can help take it from concept to launch.
What you get is more than coding.
I have extensive experience designing complex production systems including multi-tenant platforms, payment infrastructure, workflow systems, APIs, data-intensive applications, and cloud services.
I help you decide what to build, what to simplify, and how to architect it properly so you don't waste time and money rebuilding later.
How we can work together:
- Product discovery and technical direction
- Focused MVP development
- Production-ready application builds
- Existing product upgrades and scaling
- Ongoing development through clear milestones
For larger projects, I use defined milestones so scope, deliverables, and costs stay clear.
Send me your idea, prototype, or current product and tell me what you want to accomplish.
Get to know Andrei Ki
Software Architect and Platform Engineer
- FromCanada
- Member sinceApr 2013
- Avg. response time1 hour
Languages
English, Russian, Spanish, Japanese
My Portfolio
FAQ
Can you build my entire application?
Yes. I can take a focused SaaS, AI, or custom web application from architecture through development, deployment, and launch. Larger projects are usually structured into milestones with clearly defined scope and deliverables.
I only have an idea. Can you help me define what should actually be built?
Yes. Product Discovery is designed for exactly that. We can clarify the MVP, technical approach, major risks, and the most sensible path toward launch before committing to a larger build.
I already have a prototype or existing codebase. Can you work with it?
Yes. I can review an existing application, prototype, or AI-generated codebase and determine what can be reused, what should be improved, and what may need to be rebuilt.
Can you work with AI-built apps from tools like Lovable, Replit, Bolt, Cursor, or similar platforms?
Yes. I can help turn AI-built prototypes into more reliable, maintainable, production-ready applications.
What technologies do you use?
The stack is chosen based on the product. Projects may include Python, modern frontend frameworks, relational databases, APIs, cloud infrastructure, background processing, third-party integrations, and AI services.
Does the Premium package include any application no matter how complex?
No. Premium is intended for a focused commercial MVP or application release. Final scope is agreed before development begins. Larger or more complex products are divided into custom milestones.
What counts as a revision?
A revision is a reasonable adjustment to an agreed deliverable. New features, major workflow changes, or changes outside the approved scope are quoted separately.
Do you provide source code?
Yes. Source code for the work I develop is included for applicable development packages unless otherwise agreed before the project begins.
Can you continue working on the product after launch?
Yes. Many projects continue through additional milestones for new features, integrations, optimization, scaling, and ongoing product development.
Should I contact you before ordering?
You can order Product Discovery directly. For larger MVP or production builds, send me a short overview of your idea, prototype, existing product, goals, and timeline first so we can confirm scope.

