Custom CRM System for Telemarketing Campaign Management
Boosting lead generation and growing subscriptions with a tailored SaaS CRM for a UK telemarketing service provider.

Client
Our client is a lively marketing tech company based in the United Kingdom. They run telemarketing campaigns that help businesses find new customers. Before our project, they were using an old, complicated system. They needed something new, simple, and reliable. Having launched another Martech SaaS project with Peppernode, they decided to stick with their trusted software development partner for this new project as well. They firmly believed that the best CRM for telemarketers had to be custom-built, precisely matching their workflows, lead management processes, and subscription model to drive genuine growth—and we were committed to proving them right.
- Launched a fully working SaaS CRM in just 4 months
- Configured and launched a custom subscription billing model
- Built a scalable user management system
- Incorporated analytics dashboard and weekly reports for clear insights
Challenge
Our client was stuck using an old custom telemarketing CRM software. It was complicated, unreliable, and expensive to use due to inefficient billing and charging models. The system couldn’t handle large customer lists or produce automated reports. This caused business issues.
- The system kept breaking, risking important data.
- High costs from confusing billing methods.
- Hard to manage large lists of contacts.
- No easy way to track or report progress.
Solution
- 1 Project Manager/Business Analyst
- 1 UI/UX Designer
- 1 Frontend Engineer
- 1 Backend Engineer
- 1 QA Engineer
- Discovery phase: Weekly talks with the client to understand exactly their needs.
- Agile development: Built the system step-by-step in two-week sprints.
- Testing: Regular weekly tests were performed to make sure everything works well.
- Launching: Ready-to-go system with easy subscription management.
- Multitenant architecture with separate subdomains per client.
- Subscription model based on active users and contact limits.
- Telemarketing campaign creation, lead management, and appointment booking.
- Tools to book appointments and track success.
- Automated weekly statistics emailed directly to clients and managers.
- Custom role-based dashboards (Agent, Manager, Admin).
- Integrated Stripe for easy billing and invoicing.
- Role-specific secure access (Agent, Manager, Admin, Owner).
- Domain-based related contacts grouping.
Close collaboration with the client’s team through weekly calls, asynchronous feedback, and quick consultations ensured transparency and alignment with client goals.
- AWS
- React
- TypeScript
- Django
- Redis
- Celery
- WebSockets
- Docker
- PostgreSQL
- Brevo ESP

What our Client said
“[The most impressive about Peppernode is] Their ability to translate our needs into technical requirements and create a system from scratch”
Results & Impact
- Telemarketing CRM solution fully operational within 4 months.
- Reduction in lead management and campaign tracking efforts by approximately 30-40%.
- Immediate positive user feedback on system usability.
- Quick and easy onboarding for everyone.
- Easy-to-understand campaign results.
- Ready for growing their business by easily adding new customers.
- Happier customers because of clear, fair reporting and billing.

Insights from our team
“It’s always a pleasure to work on multiple projects for the same client, especially when those projects aim to simplify daily routines — and Telemanager is no exception. Staying aligned with the client throughout the process was a key, and as a result, we’ve ended up with both happy users and a proud dev team.”
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