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I will develop custom CRM software for businesses
NullTek
About this gig
Are you managing customers, leads, and sales in spreadsheets or disconnected tools?
I will design and develop secure, responsive, and scalable custom CRM software tailored to your business workflow. Your CRM can centralize customer data, automate repetitive tasks, improve follow-ups, and give your team a clear view of leads, deals, tasks, and performance.
CRM features I can build:
Lead, contact, and customer management
Custom sales pipelines and deal stages
Admin dashboards and analytics
Tasks, notes, reminders, and notifications
User roles and permissions
Search, filters, exports, and reports
API, email, calendar, and third-party integrations
Workflow automation
Responsive desktop, tablet, and mobile UI
Possible technologies:
React, Next.js, Node.js, Express, PostgreSQL, MySQL, MongoDB, Firebase, Supabase, and Tailwind CSS.
Why work with me?
Clean, maintainable code
Modern UI/UX
Clear communication and progress updates
Testing, deployment, and reliable support
Every CRM is different. Please message me before ordering so I can review your workflow, features, integrations, timeline, and recommend the correct package.
Get to know NullTek
NullTek
FullStack Web Developer
- FromHungary
- Member sinceJul 2026
- Avg. response time1 hour
Languages
Hungarian, English
NullTek is a modern digital agency based in Hungary, helping businesses build stronger online presence through premium websites, SEO, Google Ads, Meta Ads, social media management, graphic design, and n8n automation. We focus on clean design, fast performance, clear strategy, and measurable results. Whether you need a professional website, better marketing, or automated business workflows, we build digital solutions that support real business growth.
NullTek – Digital solutions. Real results.
FAQ
Do I need to contact you before ordering?
Yes. Custom CRM projects have different workflows, modules, integrations, and technical requirements. Please send your project details before ordering so I can confirm the correct package, scope, price, and delivery time.
What is a custom CRM?
A custom CRM is customer relationship management software designed around your business processes. It can manage leads, customers, deals, tasks, communication, reports, employees, documents, and automated workflows.
Which technologies will you use?
The technology stack depends on the requirements of the project.
Can you integrate third-party APIs and services?
Yes. I can integrate compatible APIs and services such as email tools, calendars, payment systems, automation platforms, communication services, and other business applications. Integration availability depends on the third-party platform and its API.
Will I receive the source code?
Yes. The completed source code for the agreed project scope will be provided after successful delivery and completion of the order.
Are hosting and domain costs included?
No. Hosting services, domain registrations, paid APIs, email services, and other third-party subscriptions are separate expenses. Deployment is included where specified in the selected package.
Can you migrate existing Excel, CSV, or database information?
Yes. Data migration can be included after reviewing the existing data format, quality, structure, and total amount of information.
What counts as a revision?
A revision is a reasonable adjustment to functionality or design included in the approved project scope. New modules, integrations, workflows, or major feature changes are considered additional work.
Do you provide support after delivery?
Yes. Technical support is included according to the selected package. Extended maintenance and continued development can be arranged separately.
