S. Yaji NONFON

Turn your manual operations into systems that work for you.

I design and build custom business apps, web platforms and automations to help business owners save time, cut repetitive tasks and structure their activity.

My Services

Business apps & SaaS
Most requested

Business apps & SaaS

Still managing your customers, orders, inventory, invoices or operations across several tools? I turn your processes into one centralized app tailored to your business.

Automation & integrations

Automation & integrations

I connect your tools and automate repetitive tasks: payments, notifications, workflows, data, APIs and external services.

MVPs & digital products

MVPs & digital products

Have a product idea? I turn your concept into a working first version that's testable and built to grow.

Technologies used, depending on the project: Node.js · TypeScript · Next.js · PostgreSQL · React Native · REST APIs

Need a showcase website?

I can also build fast, professional websites optimized to present your business or product.

How I work

A clear process from the first conversation to post-delivery support. You know exactly what to expect.

What this process guarantees

A clear framework from day one: signed contract, agreed deposit, approved milestones and matching payments.

01

Discovery

We get to know your business, your problem and your goal.

02

Proposal

Scope, features, budget, timeline and payment terms.

03

Contract & deposit

The project starts once the contract is signed and the deposit is paid.

04

Build

Development in stages, with regular check-ins and approvals.

05

Delivery

Testing, deployment, documentation and handover.

06

Support & growth

Post-delivery support, and the option to keep growing the product.

To make sure the project goes well

A clearly defined brief or goal before work starts
A signed contract for every project
A deposit before development begins
Payments split by milestone for larger projects
Realistic deadlines set together
Requests outside the agreed scope are quoted separately

Indicative pricing

Clear ranges to help you plan your budget. Prices vary with features, integrations, deadlines and project complexity.

Professional websites

From $250

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Custom API / Backend

From $500

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Business web app

From $1,000

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MVP / SaaS / Platform

Custom quote

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Automation & integrations

Custom quote

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Mobile app

From $1,500

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The final price depends on the scope, the number of features, integrations, the level of customization and the project's constraints.

Frequently asked questions

Everything you need to know before starting a project together.

I'm not sure exactly what solution I need. Can you help?

Yes. You don't need to arrive with a full specification. We start by understanding your business, your challenges and your goals, then I help you define a suitable technical solution.

Do you work remotely?

Yes, fully remotely. I work with clients in Africa and internationally over WhatsApp, email and Google Meet / Zoom.

Can I pay in installments?

Yes. A deposit is required when the contract is signed, before work starts. The balance is paid on delivery. For larger projects, payments can be split by milestone.

Do you handle hosting?

I can help you go live and advise you on the best hosting for your project (Vercel, Render, VPS...). Hosting accounts remain in the client's name.

Do you offer maintenance after delivery?

Yes. 14 days of support are included after every delivery. Beyond that, a maintenance plan is available depending on the type and complexity of your project.

How quickly do you reply?

I reply to every inquiry within 24 hours on weekdays. For urgent matters during a project, I do my best to reply the same day.

I only have a vague idea. Is that enough?

Absolutely. It's actually ideal. Share your idea, even a rough one, and I'll help you shape it and define what you really need.

Is part of your business still costing you time?

Simply tell me how you work today. Together we'll see what can be automated and which solution would fit.

Start a project