I will create a custom web app from your idea


Level 2
What people loved about this freelancer
rozient

Sweden
Worked with Karim on a strategy session for a B2C web app and he came prepared with a structured approach covering feature scoping, stack selection, and product...
sambillings819

Australia
The advisory session was delivered on schedule and covered all agreed scope, including account health scoring logic, configurable playbook architecture, and...
tech_addict_

United States
Communication with Karim was clear and responsive throughout the whole project, and he made sure expectations around the HubSpot integration and dashboard scope...
About this gig
Tired of developers who overpromise, disappear, or leave you with a halfbuilt app?
You have a real B2B or B2C SaaS product or custom app idea. Maybe you even tried building it already and ended up with missed deadlines, broken features, or code no one else can understand.
I help non-technical founders turn ideas into clean, launchable custom web apps, with a transparent process and codebase you actually control.
Product first, tech second:
Before any coding, we define your users, core use cases, and success criteria, then cut that into a focused MVP so you can launch and learn, not get lost in scope creep.
What I can build for you:
- SaaS apps, dashboards and admin panels
- Marketplaces, portals, and booking platforms
- Internal tools to automate your existing operations
- Any other unique web app idea or build
What you get:
- Concept and MVP scoping in plain English
- UX flows or simple wireframes for alignment
- Modern, responsive web app built on a stable stack
- Clean repo, basic documentation, and a short handover video
Send me your idea, target user, and timeline. I will tell you what is realistic, what is risky, and the fastest way to get a working version in front of real customers,
Get to know Karim Guettache
Expert Blockchain Engineer DeFi, Tokens, Dapps 100M On Chain
Level 2
- FromNetherlands
- Member sinceMay 2023
- Avg. response time12 hours
- Last delivery2 weeks
Languages
English, Dutch
My Portfolio
FAQ
I have a product idea but no detailed spec. Can you help shape it into something buildable?
Yes. Most founders come with a concept, not a full spec. I help you clarify the problem, the key user journeys, and the must‑have features, then turn that into a realistic MVP plan instead of a never‑ending wishlist.
How long does it take to launch an MVP?
For a focused first version that solves a single core problem, expect several weeks, not months or years. After we discuss your idea, I give you a realistic estimate and break it into milestones so you always know what is coming next.
Can you support the product after launch?
Yes. After the initial MVP, I can continue in structured sprints to polish features, add new ones, and keep the app stable as you grow and learn from users.
How do I know you will not disappear or deliver messy, unusable code?
I work in defined milestones with demos, so you see progress early. You get repo access, clear structure, and documentation, which means any competent developer can continue after me and you are not locked into a black box. This directly reduces your risk as a buyer.
Who owns the code and IP?
You do. Once the project is paid for, you own the codebase, architecture, and assets. I do not reuse your proprietary logic in other client projects.
What tech stack do you use for custom web apps?
Typically a modern web stack such as React or Next for the front end plus a secure backend and database. I choose tools based on stability, maintainability, and how easy it will be for future developers to work with.
What if I am not happy with the direction during the build?
We avoid big surprises by working in small, visible steps. You see flows, early screens, and interim builds, and you give feedback at each stage. Fixing misalignment early is one of the easiest ways to de‑risk a custom build.
5 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
R rozient
Repeat Client

Sweden
Worked with Karim on a strategy session for a B2C web app and he came prepared with a structured approach covering feature scoping, stack selection, and product positioning for a consumer-facing audience. Would work with him again without hesitation.
$200-$400
Price
2 days
Duration
Helpful?S sambillings819

Australia
The advisory session was delivered on schedule and covered all agreed scope, including account health scoring logic, configurable playbook architecture, and a prioritized implementation roadmap. Overall, the engagement was handled with professionalism and technical precision, and the output is directly actionable for our next build phase.
$200-$400
Price
3 days
Duration
Helpful?T tech_addict_

United States
Communication with Karim was clear and responsive throughout the whole project, and he made sure expectations around the HubSpot integration and dashboard scope were well defined from the start. Any questions I had were handled quickly, and the final build came out exactly as discussed.
$1,000-$1,500
Price
7 weeks
Duration
Helpful?T 
talaldigital

Malta
Well done!
$400-$600
Price
11 days
Duration
Helpful?A 
actualyse
Repeat Client

United Kingdom
Outstanding consultation. Exactly what we needed. Fast, clear, super helpful. Highly recommend Karim!
$100-$200
Price
8 days
Duration
Helpful?
5 reviews for this Gig
| (5) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
R rozient
Repeat Client

Sweden
Worked with Karim on a strategy session for a B2C web app and he came prepared with a structured approach covering feature scoping, stack selection, and product positioning for a consumer-facing audience. Would work with him again without hesitation.
$200-$400
Price
2 days
Duration
Helpful?S sambillings819

Australia
The advisory session was delivered on schedule and covered all agreed scope, including account health scoring logic, configurable playbook architecture, and a prioritized implementation roadmap. Overall, the engagement was handled with professionalism and technical precision, and the output is directly actionable for our next build phase.
$200-$400
Price
3 days
Duration
Helpful?T tech_addict_

United States
Communication with Karim was clear and responsive throughout the whole project, and he made sure expectations around the HubSpot integration and dashboard scope were well defined from the start. Any questions I had were handled quickly, and the final build came out exactly as discussed.
$1,000-$1,500
Price
7 weeks
Duration
Helpful?T 
talaldigital

Malta
Well done!
$400-$600
Price
11 days
Duration
Helpful?A 
actualyse
Repeat Client

United Kingdom
Outstanding consultation. Exactly what we needed. Fast, clear, super helpful. Highly recommend Karim!
$100-$200
Price
8 days
Duration
Helpful?

