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Every service listed here has been delivered to a real client. No theoretical offerings — production-grade automation systems with measurable outcomes.
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Clients
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Services
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Rating
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Shipped
Know your business goal but not the tech?
Browse by outcome — "I want to automate X"Lead Submits Form
WhatsApp / Website
AI Bot Qualifies
GPT-4o · ~8 seconds
Routes by Intent
Hot → Sales · Cold → Nurture
CRM Updated
Zoho / HubSpot auto-sync
Owner Notified
Telegram alert in <1 min
8s
Qualify time
3×
Lead volume
0
Manual steps
Service Overview
Live automation build — watch it happen
n8n Workflow: WhatsApp Lead Bot
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Core Services
20 Specializations, Zero Fluff
I only list services I have delivered in production. Each one comes with a defined scope, a fixed timeline, and a clear outcome. Filter by category below.
Autonomous AI agents that handle complex multi-step tasks without human intervention. From research agents to decision-making bots that operate 24/7.
- Multi-step task orchestration
- Tool use and web browsing
- Memory and context retention
- Slack / Telegram integration
- Custom business logic
End-to-end WhatsApp business automation using the official Meta API. Build conversational flows, automate responses, and qualify leads at scale.
- Official Meta Business API
- AI-powered conversational flows
- Lead qualification pipelines
- CRM integration (Zoho, HubSpot)
- Broadcast campaign automation
Custom n8n workflow automation connecting your entire business stack. Automate repetitive tasks across 400+ integrations with zero ongoing licensing cost.
- Self-hosted n8n deployment
- 400+ app integrations
- Error handling and retry logic
- Scheduled and webhook triggers
- Full workflow documentation
Retrieval-Augmented Generation systems that give AI models access to your private documents, databases, and knowledge bases for accurate, grounded responses.
- Vector database setup (Pinecone, Weaviate)
- Document ingestion pipelines
- OpenAI / Claude / Llama integration
- Semantic search over private data
- Hallucination reduction strategies
Production-grade web scrapers for market intelligence, lead generation, price monitoring, and competitive analysis. Built to handle anti-bot measures and scale.
- JavaScript-rendered page scraping
- Rotating proxies and headers
- Scheduled data extraction
- Structured data pipelines
- Rate limiting and anti-ban logic
Comprehensive ethical hacking and vulnerability assessments for web applications, APIs, and infrastructure. Detailed reports with remediation roadmaps.
- OWASP Top 10 testing
- API and endpoint fuzzing
- Privilege escalation testing
- Detailed vulnerability report
- Post-fix verification included
AI-powered image and video analysis for quality control, document extraction, face detection, and real-time object recognition in production systems.
- OCR and document parsing
- Object detection and classification
- Real-time video analysis
- Custom model fine-tuning
- Edge deployment support
Voice-enabled AI interfaces for IVR systems, voice assistants, call center automation, and real-time transcription with speaker diarization.
- Real-time speech-to-text
- Text-to-speech with custom voice
- IVR and phone bot integration
- Multilingual support (Hindi, Bengali, English)
- Emotion and sentiment detection
Production multi-agent pipelines using CrewAI, LangGraph, and OpenAI Agents SDK. Specialized agents collaborating autonomously — research, code, review, and deploy without hand-holding.
- CrewAI and LangGraph orchestration
- Agent-to-Agent (A2A) protocol support
- Tool use, memory, and planning loops
- Human-in-the-loop checkpoints
- Deployed on cloud or self-hosted
Custom Model Context Protocol (MCP) servers that extend AI assistants — Claude, Cursor, Copilot — with your own tools, data sources, and APIs. The fastest-growing AI integration standard in 2026.
- Custom MCP tool and resource handlers
- Connect Claude / Cursor to your APIs
- Database and file system MCP servers
- Auth, rate limiting, and error handling
- Publish to MCP registry (10K+ servers)
AI-powered browser agents that navigate websites, fill forms, extract data, and complete multi-step web tasks autonomously. Built with Playwright + computer-use models for tasks no API can cover.
- Playwright-based browser control
- Computer-use model integration
- Login, form fill, and click automation
- Screenshot-to-action pipelines
- Headless and headed deployment modes
Custom AI chatbots trained on your business data — product docs, FAQs, pricing, policies. Embedded on your website with a chat widget, handling sales queries and support 24/7.
- Trained on your documents and FAQs
- Chat widget embed (React or script tag)
- Lead capture with CRM handoff
- Escalation to human via WhatsApp/email
- Multi-language support
End-to-end email drip sequences, lead nurturing pipelines, and lifecycle campaigns. From cold outreach to post-purchase follow-ups — built, tested, and connected to your CRM.
- Cold outreach sequences (10–20 step)
- Behaviour-triggered email flows
- CRM sync (HubSpot, Zoho, Mailchimp)
- A/B tested subject lines
- Unsubscribe and compliance handling
Automate your entire sales pipeline — lead assignment, deal stage triggers, follow-up reminders, and report generation. Works with Zoho, HubSpot, Pipedrive, and Airtable.
- Lead scoring and auto-assignment
- Deal stage triggers and reminders
- Cross-platform CRM sync
- Automated pipeline reports
- Sales team Slack/WhatsApp alerts
Visual scenario automation using Make — the go-to platform for ops teams needing complex branching, iterators, and high-volume data transformations without writing code.
- 1000+ app integrations
- Complex branching and filter logic
- High-volume scenario runs
- Error handling and alerting
- Migration from Zapier to Make
Zapier workflows with AI steps built for non-technical teams and clients who want fast, reliable automations across 8,000+ apps — no infrastructure, zero maintenance.
- 8,000+ app integrations
- AI steps and Zapier Agents
- Instant trigger and filter setup
- Zap templates for common use cases
- Zapier Tables and Interfaces setup
Full Airtable setup — database design, automations, interfaces, and scripting. Turn spreadsheet chaos into a structured, automated ops hub your team actually uses.
- Base architecture and schema design
- Native automation triggers and actions
- Interface and dashboard building
- Airtable scripting (custom JS)
- CRM, project tracker, or inventory setup
Automated data pipelines that collect, transform, and sync data between APIs, databases, spreadsheets, and dashboards — on a schedule or real-time via webhooks.
- REST / GraphQL API data sync
- Google Sheets + Airtable pipelines
- PostgreSQL / Supabase ETL
- Scheduled and webhook-triggered runs
- Data cleaning and deduplication
Deep security testing of REST and GraphQL APIs against OWASP API Top 10. Authentication bypass, injection, rate limiting, IDOR, and business logic flaws — all tested manually.
- OWASP API Top 10 full coverage
- Authentication & JWT testing
- IDOR and privilege escalation
- Rate limiting and DoS vectors
- Detailed remediation report
Full Vulnerability Assessment and Penetration Testing (VAPT) for web applications. Covers authentication, session management, injection, business logic, and third-party integrations.
- Black-box and grey-box testing
- Burp Suite Pro + manual validation
- Business logic vulnerability testing
- CVSS-scored vulnerability report
- Post-fix re-testing included
Custom Solution
Have a unique automation challenge?
Not every problem fits a catalogue. I design and build custom AI systems tailored to your exact workflow and business logic — from requirements discovery to full deployment and documentation. Fixed price, IP ownership transferred.
Client Results
What founders say after shipping
“Chiranjib built our entire WhatsApp lead qualification bot in under two weeks. Our sales team now handles 3× the volume with the same headcount.”
“The RAG system he deployed eliminated 70% of our repetitive support tickets. Our team finally has time to focus on real problems.”
“Fixed price. Fixed scope. Delivered two days early. That kind of professionalism is rare in the freelance AI space.”
Tell me your problem in plain language — I'll suggest the right solution.