Sergei Mostachev — AI Solutions & CRM Systems Architect
Building scalable business systems: CRM architecture, telephony, voice AI agents, n8n workflows, and microservices
Increasing business efficiency by 30–70% through intelligent automation and system architecture. 200+ successful projects for companies in Russia, USA, and Europe.
About Me
Systems Architect & Senior Engineer
I am Sergei Mostachev — a systems architect specializing in CRM engineering, AI automation, and telephony infrastructure. Since 2009, I've built corporate solutions for international companies across the US and EU. For years, I operated under the professional brand Prigov.info, originally created as a freelance alias. Today, I continue the brand while openly working under my real name to provide enterprise-level architecture and automation services. My expertise spans Bitrix24 architecture, Asterisk ARI/AMI telephony, intelligent voice & text AI agents, n8n automation pipelines, and microservice-based backend systems. Every solution I build is designed for scale, stability, and measurable business results.
Technical Expertise
Services
Complete solutions for business automation
Bitrix24 Integration
Comprehensive Bitrix24 integration with external systems and services
- API Integration
- Real-time data exchange
- Process automation
CRM Setup
CRM setup and optimization for effective sales
- Sales funnels
- Automation
- Reports and analytics
Telephony and Call Center
Telephony and virtual PBX setup for Bitrix24
- Virtual PBX
- Call recording
- CRM integration
Business Process Automation
Automation of routine processes and business processes
- Business processes
- Automation robots
- Triggers and events
AI & Chatbot Solutions
Intelligent agents for business automation
Developing text and voice AI agents, chatbots for Telegram, WhatsApp, and web interfaces. Integrations with OpenAI, Anthropic, YandexGPT, and local LLMs.
Bitrix24 AI Message Translator
Automatic translation for inbound and outbound Bitrix24 messages, chats, and open channels across 40+ languages.
- Automatic multilingual translation
- Bitrix24 chats & open channels
- 40+ supported languages
- Context-aware translation
AI Lead Processing Agent
AI-driven lead qualification, automatic responses, data collection, and task assignment for sales teams.
- AI-driven lead qualification
- Automatic responses
- Data collection
- Task assignment for sales teams
Telegram Chat Analysis
AI analysis of exported chat history: sentiment, topics, conflict detection, user clusters, and actionable insights.
- Sentiment analysis
- Topic detection
- Conflict detection
- User clusters & insights
Voice AI Calling Agent
Intelligent outbound calling: reminders, follow-ups, onboarding, data collection, and customer engagement.
- Intelligent outbound calling
- Reminders & follow-ups
- Onboarding & data collection
- Customer engagement automation
How I Work
Transparent process from assessment to deployment
1. System Assessment & Technical Audit
Analysis of your processes, CRM, telephony, and automation potential.
2. Architecture Design
Blueprints, workflows, integrations, data models, and AI-powered process design.
3. Implementation
CRM automation, AI agents, telephony engineering, workflows, and microservices.
4. Testing & Team Onboarding
Stabilization, refinement, staff onboarding, and documentation.
5. Ongoing Support & Scaling
Continuous optimization and evolution of your system as your business grows.
Portfolio
Implemented projects and solutions
FrontDesk Helpers
An enterprise platform on Bitrix24 for an American home healthcare company from New York. The system serves 200+ users, processes 1,000+ daily AI calls, and manages the recruitment of 500+ candidates on a monthly basis.
Ready-Made Solutions
50+ modules and AI solutions
50+ ready-made modules and AI solutions for CRM, telephony, HR, analytics, and workflow automation.
Client Testimonials
What our clients say about our work
"Sergei helped us set up CRM and integrate with external systems. Results exceeded expectations."
"High level of expertise and attention to detail. Highly recommended."
Start Collaboration
Technical assessment and architecture proposal
Contact Me
Share your business challenge — I will prepare a technical assessment and an architecture roadmap tailored to your goals.
Location
Remote / Smolensk, Russia
Response Time
Within 24 hours