Browse categories
Explore
Fiverr Pro
English
$
USD
I will develop a custom crm web application for your small business
Sebastien Aoki
About this gig
If you want a custom CRM web application that is fast, reliable, scalable and will save you time, you have come to the right place!
I am a software developer with 20 years of experience of developing web applications for all kinds of businesses, including healthcare, services, logistics, e-commerce, finance and entertainment.
Based on your requirements and constraints, I will make a CRM tailored to your needs, and handle all the technical details for you.
Here are a few examples of what I can build:
- All kinds of data-management screens.
- Dashboards (charts), reports and statistical analysis of your data
- Integration with third-party services such as maps, emails or payment
- Allowing your business partners to safely access your data (either manually or automatically)
- Multi-language/localized web applications
Here are my quality standards:
- I deliver web applications that just work, doing tests and QA is my responsibility.
- My software is built to last. No hidden technical debt or future replacement. In fact, it could probably last decades!
- I prioritize technologies that are open-source and energy-efficient.
Get to know Sebastien Aoki
Sebastien Aoki
Senior software engineer
- FromJapan
- Member sinceMar 2026
Languages
English, French, Japanese
I have 20 years of experience in design and development of full-stack web applications as well as independent video games.
By thinking ahead and paying attention to all details, I quickly deliver software with little to no bugs or long-term maintenance costs.
I enjoy solving the most challenging problems, like writing complex algorithms, finding code optimizations or untangling the most difficult codebases.
My favorite quote? "I didn't know it was impossible, so I did it anyway."
My Portfolio
FAQ
Do you use generative AI (such as LLMs) or outsource your work?
No. My work and communications are 100% human-made by myself, no AI slop or outsourcing here. You can rest assured that I will always prioritize quality and long-term maintainability.
What counts as a page?
I usually assimilate pages to entities. For example, if you want the application to manage your customers, products and orders, that would be three pages. All the features for each entity (listing, creation, deletion, edition...) count as the same page. If you have any doubts, feel free to ask.
What does the "design customization" option include?
I use a design system called Material-UI to provide the best cost-quality. This option is available in case you want additional customizations for the application layout, colors or fonts, for example.
What is a "responsive design"?
It means that the same application will be usable on PCs, tablets and smartphones via a web browser. The layout will automatically adjust to the screen size and be usable on keyboards, mouses and touch screens.
What does "content upload" mean?
Once the application is developed, you will need to install it on a web server. I will always include instructions, and can make recommendations for cheap and convenient hosts if needed. But if you prefer to have me handle all of that, this option is available.
Can the application handle multiple users?
Yes, all of my packages allow you to create an unlimited number of users. However, permissions management is not included, so all users have access to everything.
Will the application handle SSO or social logins?
My public packages do not include social logins or SSO. However, I can handle it in most cases. Please contact me to discuss the specifics. Keep in mind that it might not be possible to do SSO with some private corporate systems, or it might require close cooperation with your system admins.
