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S M Russel - Full-Stack AI Engineer & Systems Architect

Hi, I'm S M Russel

Open for Selected Advisory

Systems Architect & Full-Stack AI Engineer • Founder at Assembly Minds ↗

Full-Stack AI Engineer &
Systems Architect

I architect autonomous multi-agent workflows, sub-700ms Voice AI agents, enterprise RAG pipelines, and containerized Full-Stack Cloud SaaS with Python, Next.js, and Docker.

Resume / CV Review Architecture Services
  • LangChain
  • LangGraph
  • Python
  • FastAPI
  • Docker
  • PostgreSQL
  • Qdrant
  • Redis
  • Ollama
  • Langfuse
  • Deepgram
  • PyTorch
  • Hugging Face
  • Next.js

What I do?

    • Multi-agent orchestration with LangGraph, CrewAI & AutoGen
    • Stateful cycles, checkpointing & human-in-the-loop validation
    • Dynamic tool calling & structured JSON extraction
    • Deep observability with Langfuse & LangSmith traces
    • Sub-700ms voice telephone agents with Pipecat, Vapi & Retell
    • Real-time calendar booking & CRM bidirectional sync
    • Telephony SIP trunking with Twilio & Daily.co WebRTC
    • Audio stream interruption handling & graceful fallbacks
    • Hybrid semantic & keyword search with pgvector & Qdrant
    • Reciprocal rank fusion, contextual chunking & rerankers
    • Model fine-tuning with LoRA/QLoRA on PyTorch & Hugging Face
    • High-throughput local LLM serving with vLLM & Ollama
    • Self-hosted n8n infrastructure deployed on Docker VPS
    • Resilient web scraping with Crawl4AI, Playwright & Python
    • Lead scoring, email sequencing & webhook event hubs
    • Automated content generation & SEO distribution pipelines
    • Async backend architectures with FastAPI, Celery & Redis
    • Modern reactive frontends with Next.js, React & Tailwind CSS
    • PostgreSQL, Supabase, MySQL & Redis data layers
    • Containerized multi-service deployment with Docker Compose on Linux VPS & AWS
    • Automated zero-downtime CI/CD pipelines with GitHub Actions & Nginx SSL

Solutions & Advisory

AI Consultancy & Systems Architecture

I partner with ambitious founders, startups, and enterprise teams to design, architect, and deploy production-grade AI systems that operate with deterministic reliability, low latency, and scalable economics.

★ Core Architecture

Autonomous Multi-Agent Systems

Design and deployment of resilient, stateful multi-agent workflows capable of multi-step reasoning, self-correction, dynamic tool execution, and deterministic guardrails.

Guardrails

Deterministic Routing

State Engine

Redis Checkpointing

Observability

Langfuse Telemetry

Key Architecture Deliverables:

  • Cyclic multi-agent workflows (LangGraph)
  • Deterministic human approval gates (HITL)
  • Session persistence & state recovery (Redis/Postgres)
  • Complete trace observability (Langfuse)
LangGraph • Python • Redis • Langfuse Request Architecture Scope
Sub-700ms Latency

AI Voice Agents & Automated Booking

Autonomous voice telephone receptionists engineered with Vapi, Pipecat, and Twilio to answer customer inquiries, verify live calendar availability, and book appointments 24/7.

Key Deliverables:

  • Zero missed inbound calls (24/7 autonomous voice receptionist over PSTN)
  • Direct calendar scheduling (Cal.com / Google Calendar API tool calls)
  • Conversational sub-700ms response time (Deepgram + Cartesia)
  • Natural conversation control (instant barge-in interruption handling & post-call SMS/CRM updates)
Vapi • Pipecat • Twilio • Cal.com • FastAPI Request Architecture Scope
24/7 Conversion

Omnichannel AI Lead Systems & Auto-Messaging

High-converting automated lead capture and customer support across Website Live Chat, Facebook Messenger, and WhatsApp with instant conversational qualification and CRM routing.

Key Deliverables:

  • Multi-platform lead capture (Website Live Chat, WhatsApp, Facebook Messenger)
  • Automated AI SDR qualification
  • Instant CRM synchronization (HubSpot, GoHighLevel, Salesforce)
  • Real-time high-intent alerts with instant escalation to live sales reps
Meta API • Webhooks • HubSpot • n8n • OpenAI Request Architecture Scope
High Precision

Enterprise RAG & Private Knowledge

Hallucination-resistant retrieval pipelines that turn massive unstructured company knowledge into highly accurate, cited, and auditable enterprise intelligence.

Key Deliverables:

  • Hybrid vector & keyword retrieval (pgvector/Qdrant with RRF for 99%+ precision)
  • Contextual document chunking with source citations
  • Private local LLM inference (vLLM/Ollama)
  • Domain fine-tuning (LoRA/QLoRA)
pgvector • Qdrant • vLLM • PyTorch Request Architecture Scope
Cloud & DevOps

Cloud Infrastructure, Production Deployment & Cost Optimization

End-to-end containerized deployment architectures and production audits—from Docker Compose multi-service topologies and Nginx SSL reverse proxies to zero-downtime CI/CD and cloud cost reduction.

Key Deliverables:

  • Full-stack containerized cloud deployment (AWS EC2 / Cloud VPS)
  • Zero-downtime CI/CD deployment pipelines with GitHub Actions
  • Hardened Nginx reverse proxy with automated Let's Encrypt SSL & domain routing
  • PostgreSQL & Redis persistence architectures with automated offsite backup replication
  • 30-60% API token burn reduction with semantic caching & intelligent model tiering
Docker Compose • AWS / VPS • Nginx • GitHub Actions • CI/CD Request Architecture Scope

How We Work Together

01
Technical Audit & Feasibility Scope

A deep architectural evaluation to analyze your workflow, data availability, latency requirements, and model selection.

02
Working Proof-of-Concept (10 Days)

Within 10 days, we build a functioning proof-of-concept with live benchmarks, tool integration, and verified accuracy.

03
Production Hardening & Handover

Full production rollout with distributed checkpointing, Docker containers, monitoring telemetry, fail-safes, and documentation.

Ready to build your AI advantage?

Whether you need an architectural review, a sub-700ms voice agent, or an autonomous multi-agent pipeline, let's discuss your roadmap.

Request Architecture Consultation Send Direct Project Email

Featured Work

Production Architectures & Projects

LangGraph Multi-Agent Pipeline

LangGraph Multi-Agent Pipeline

Fault-tolerant cyclic multi-agent orchestration architecture featuring typed state transitions, human-in-the-loop checkpoints, and distributed Langfuse telemetry.

LangGraph • CrewAI • Redis • Langfuse Production Architecture
Real-Time Voice AI Agent

Real-Time Voice AI Agent

Sub-700ms conversational telephone receptionist handling 24/7 inbound patient and customer scheduling with live calendar tool calling.

Pipecat • Twilio • Daily.co • FastAPI Production Architecture
Containerized Full-Stack Cloud Architecture & Automated CI/CD

Containerized Full-Stack Cloud Architecture & Automated CI/CD

Production cloud infrastructure featuring Next.js, FastAPI, PostgreSQL, Docker Compose orchestration, Nginx reverse proxy with automated SSL, and GitHub Actions zero-downtime rollouts.

Docker Compose • Nginx SSL • AWS / Cloud VPS • CI/CD • PostgreSQL Production Infrastructure
Omnichannel AI Support & Lead Qualification Platform

Omnichannel AI Support & Lead Qualification Platform

Production conversational AI system operating across WhatsApp, Telegram, and Web Chat with pgvector semantic retrieval, dynamic CRM synchronization, and human-in-the-loop escalation.

WhatsApp • Telegram • pgvector RAG • FastAPI • CRM Sync Production System
ahealthglobal.com

ahealthglobal.com

Telemedicine platform serving global patients with automated intake, encrypted EHR record management, and direct doctor consultation booking.

Full-Stack • Healthcare Solutions Healthcare Platform
revanddev.in

revanddev.in

High-speed digital agency web platform delivering 100/100 Core Web Vitals, sub-second load times, and conversion-optimized service funnels.

Web Platform • Digital Agency Digital Platform
Inspect More Open-Source Architectures on GitHub →

Recent Posts

All Topics Cloud Architecture DevOps Docker AI Automation Omnichannel Lead Generation Agentic AI LangGraph Systems Architecture Voice AI Vapi
Read All Engineering Breakdowns & Guides →

Let's talk

Request an Architecture Consultation

Have an ambitious AI product or complex infrastructure challenge? Submit your technical requirements below. You will receive an initial feasibility evaluation and architecture roadmap directly from Russel within 24 business hours.

S M Russel
S M Russel

Full-Stack AI Engineer & Systems Architect • Founder @ Assembly Minds

Direct engineer-to-engineer evaluation. No sales reps — every inquiry is personally reviewed with technical feasibility feedback.

⚡

24-Hour Feasibility Guarantee

Direct engineer-to-engineer review

🔒

Mutual NDA Guarantee

Signed prior to deep architecture and code review

⚡ Direct Email: smrusselofficial@gmail.com
Location: Dhaka, Bangladesh (Available Worldwide)
Availability: Open for Selected Consulting & Advisory

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