Browse categories
Explore
Fiverr Pro
English
$
USD
I will develop custom CRM software and web applications as full stack web developer
Mussenestty
About this gig
Need a custom CRM that fits the way your business actually works?
I will develop a custom CRM software or web application tailored to your workflow, customers, sales process and team.
I can build:
- Custom CRM software
- Lead & customer management
- Sales pipeline & follow-ups
- Admin dashboards & analytics
- User roles & permissions
- Task & team management
- Workflow automation
- Booking & appointment systems
- Invoicing & business management
- API & third-party integrations
- Email, SMS & payment integrations
- SaaS / multi-user CRM systems
- CRM + ERP business applications
Your system can be built around your existing process instead of forcing your business to adapt to generic CRM software.
I work with modern technologies such as React, Next.js, Node.js, PHP, Laravel, Python, Django, MySQL, PostgreSQL, MongoDB and REST APIs, depending on your project requirements.
Whether you need a CRM built from scratch, an existing CRM customized, or a complete business web application, I can help turn your requirements into a functional, scalable system.
Please message me before ordering . I'll recommend the right package or create a custom offer for your project.
Get to know Mussenestty
Mussenestty
CRM and Custom Software Developer, Business Web Applications
- FromUnited States
- Member sinceOct 2026
- Avg. response time1 hour
Languages
English, French, Italian
My name Mussenestty, I’m a CRM & Custom Software Developer focused on building business web applications around real-world workflows.
I develop custom CRM systems, dashboards, sales pipelines, automation, SaaS platforms, API integrations, and business management applications.
My goal is simple: turn your requirements into reliable, scalable software that helps your business work smarter.
Let’s build a system around your workflow not force your business into a generic solution.
Other Software Development Services I Offer
FAQ
Can you build a CRM from scratch?
Yes. I can develop a custom CRM based on your business workflow, required modules, users, database and integrations.
Can you customize an existing CRM?
Yes. If you have an existing CRM or codebase, I can review the requirements and customize or extend it where technically feasible.
Can you build a sales CRM?
Yes. Lead management, customer records, sales pipelines, opportunities, follow-ups, tasks, dashboards and reporting can be included.
Can you integrate APIs and third-party services?
Yes. I can integrate supported APIs and services such as payment gateways, email, SMS, authentication and other business systems.
Can you build a SaaS CRM?
Yes. I can develop multi-user or multi-tenant CRM platforms depending on the project's architecture and requirements.
Can you create different user roles?
Yes. Role-based permissions can be created for administrators, managers, sales representatives, employees and other users.
Can you migrate my existing CRM data?
Yes. Data migration can be included when the source data is available in a suitable format such as CSV or Excel.
Can you connect my CRM with another software?
Yes. If the external platform provides a suitable API or integration method, I can connect it with your CRM.
Can you develop CRM dashboards and reports?
Yes. I can create dashboards, analytics, filters, tables and reports based on the data and KPIs your business needs.
