Hire the Best LangChain Developers

𝗪𝗮𝗻𝘁 𝘁𝗼 𝘁𝘂𝗿𝗻 𝘆𝗼𝘂𝗿 𝗶𝗱𝗲𝗮 𝗶𝗻𝘁𝗼 𝗮𝗻 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝘁𝗵𝗮𝘁 𝗮𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝘄𝗼𝗿𝗸𝘀? I help founders, startups, and tech teams build full-stack apps enhanced by real-world AI like GPT-based chatbots, document Q&A tools, resume screeners, and RAG pipelines. As an AI/ML Engineer and Full Stack Developer having over 7 years of experience, I blend cutting-edge AI (LLMs, LangChain, Autogen) with robust web development (MERN, Next.js, Node.js) to ship scalable, intelligent software fast. 🧠 𝐀𝐈 & 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: - LLMs (GPT-4, Claude, Gemini), OpenAI & LangChain Integration - Retrieval-Augmented Generation (RAG) Systems - Custom Chatbots, SQL Agents, Resume Rankers - LangGraph & Autogen Workflow Agents - Vector Search (FAISS, Pinecone, ChromeDB) 💻 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: Frontend: React.js | Next.js | Nuxt.js | Tailwind Backend: Node.js | NestJS | Express | Flask | FastAPI | Python Databases: PostgreSQL | MongoDB | Supabase | Firebase APIs & DevOps: REST APIs | Docker | Vercel | AWS 𝐀𝐈 & 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐈 𝐁𝐮𝐢𝐥𝐝: ✔️ AI-powered SaaS platforms and MVPs to launch startups or automate workflows ✔️ ChatGPT-style chatbots and virtual assistants for support, HR, or data lookup ✔️ Document search and RAG systems for retrieving and summarizing knowledge ✔️ LLM-integrated dashboards and bots for real estate, finance, and analytics ✔️ Resume screening tools that rank candidates using OpenAI models ✔️ Full stack web apps with built-in AI features from frontend to backend 𝐖𝐡𝐚𝐭 𝐒𝐞𝐭𝐬 𝐌𝐞 𝐀𝐩𝐚𝐫𝐭: ✔️ Practical, business-focused AI & ML solutions ✔️ End-to-end development: LLMs, APIs, backend & cloud ✔️ Fast, reliable delivery with clean, production-ready code ✔️ US, UK & UAE time zones coverage ✔️ Clear, jargon-free communication with proactive updates 🚀 𝐆𝐨𝐭 𝐚𝐧 𝐀𝐈 𝐢𝐝𝐞𝐚 𝐨𝐫 𝐜𝐡𝐚𝐥𝐥𝐞𝐧𝐠𝐞 𝐲𝐨𝐮'𝐫𝐞 𝐞𝐱𝐜𝐢𝐭𝐞𝐝 𝐭𝐨 𝐭𝐚𝐜𝐤𝐥𝐞? Let’s turn it into a powerful, real-world solution customized to your business. 𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐦𝐞 𝐭𝐨𝐝𝐚𝐲, 𝐈’𝐦 𝐡𝐞𝐫𝐞 𝐭𝐨 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐦𝐚𝐤𝐞 𝐢𝐭 𝐡𝐚𝐩𝐩𝐞𝐧!

🧑‍💻 Worked with Google and NVIDIA developers on AI projects ⭐ Top Rated AI Engineer 🔁 6+ years of AI experience 🥈 MS Data Science (Silver Medalist) 🛠️ Research depth + real-world delivery 🤝 Clear communication, clean code, long-term collaborative mindset 🔹 Open Source Credibility Worked with Google and NVIDIA developers on advanced AI model implementations. Experienced in building high-quality, production-level code aligned with industry engineering standards. 🔹 Solving Your GenAI Challenges Most AI projects stall between a proof-of-concept and production. If you are stuck on any of these roadblocks, I can help: → Hallucinations: "Our chatbot gives unreliable or fabricated answers." → Unpredictable Workflows: "The AI agent cannot follow business logic consistently." → Poor Context: "Our RAG retrieval quality is missing the right data." → High Latency: "Voice assistants feel laggy, slow, and unnatural." → Scaling Issues: "The system works locally but breaks under production loads." → Cost Explosions: "LLM API costs and latency are becoming unsustainable." 🔹 AI Solutions I Build → AI Agents & Workflow Automation: LangChain/LangGraph agents for task execution, routing, and business workflows. → RAG & Knowledge Assistants: Retrieval systems with embeddings and vector databases for accurate domain-specific answers. → Voice AI Systems: Real-time STT/TTS pipelines with streaming for natural voice interactions. → Fine-Tuned LLMs: Custom models trained for domain-specific reasoning, classification, and generation tasks. → Computer Vision Applications: Real-time object detection, tracking, segmentation, and counting systems using video analytics. 📈 Real-World Impact → Built an AI grading system processing 150K+ evaluations daily → Reduced 40% customer support workload using AI-powered RAG chatbots → Developed healthcare AI assistants using LangGraph agents and medical FHIR R4 data → Improved RAG retrieval quality using multi-query optimization → Reduced latency in voice systems using streaming pipelines → Increased inference throughput by up to 2.2x using TensorRT and Triton → Contributed to Google KerasCV, KerasIO, and NVIDIA repositories 🌍 Industries I’ve Served: 🏥 Healthcare | 📚 Education | 💬 Customer Support | 📈 Marketing | 💰 FinTech 🛠️ Tech Stack → LLMs: OpenAI, Claude, Gemini, Hugging Face → AI Frameworks: LangChain, LangGraph, RAG, Rasa → Voice AI: Whisper, STT/TTS, Real-time Streaming → Vector DBs: Pinecone, Chroma → ML/CV: TensorFlow, PyTorch, Keras, OpenCV → Deployment: FastAPI, Docker, AWS (Lambda, EC2), GCP, Triton, TensorRT I'm available for short and long-term projects, with a focus on building AI systems that are reliable, scalable, and production-ready. If you’re building an AI product and need someone who understands both research and production engineering, let’s discuss your project.

There’s often $50K–$500K in wasted effort buried in day-to-day operations. I build AI-driven systems that remove that overhead and give your team time back. I help startups & SMBs cut through the AI hype and ship measurable AI systems — chatbots, agentic workflows, RAG/LLM apps, conversational AI & voice AI based assistants, and automation pipelines that reduce manual work and increase throughput. I personally lead every project and coordinate a small expert team at Techtek (PM, developers, QA, DevOps) so you get senior engineering plus reliable delivery. We love working within the following industries: Healthcare - Built AI-assisted note capture and workflow tools that reduce admin overhead — saving clinicians ~5–6 hours per week and improving clarity of patient communication - Developed secure, role-based systems for handling sensitive medical data with structured summaries and decision-support capabilities 🏭 Distribution & Operations - Designed automation systems to process high-volume orders across large SKU catalogs — reducing processing time from ~30 minutes to under 2 minutes per order - Improved data accuracy to 95%+ and significantly reduced manual entry across operations - Enabled faster fulfillment cycles through backend automation and API integrations 🏨 Hospitality & Booking Systems - Implemented conversational automation (chat + voice flows) to handle booking requests and customer queries - Systems capable of managing the majority of inbound inquiries automatically, improving response time and reducing missed opportunities 🏗️ Construction & Lead Generation - Built automated data collection pipelines to identify relevant business opportunities (projects, tenders, acquisitions) - Reduced manual research effort while increasing lead relevance and quality for decision-making 🛠️ Local Services & SMBs - Delivered scheduling and booking automation systems that handle appointments, updates, and cancellations end-to-end - Integrated with CRMs and notification systems to reduce admin workload and improve customer experience We work at any stage ● Full Project Development: idea → scalable production-ready system including prdouction deployments ● MVP & POC: fast validation and user feedback loops ● Feature Expansion: add AI features into existing products ● Integrations: connect LLMs & automations to CRMs, support tools, payment systems ● Refactor & Rescue: stabilize or modernize stalled projects Who I work best with ✅ Startups & SMBs with a clear use case and decision-maker available ✅ Teams wanting pragmatic, production-first AI (MVP → iterate → scale) ✅ Clients who value measurable outcomes over buzzwords When I’m NOT a good fit ✗ Research-only projects with no plan to ship ✗ Projects expecting immediate results without product/data to iterate on ✗ Price-only buyers looking for the lowest hourly rate Core promises (what you get working with Techtek) - End-to-end responsibility: I scope, architect, implement, test, and help deploy. - Predictable delivery: clear milestones, no surprise costs. - Rapid responses: usual replies within a business day (often <30 mins). - Production-first mindset: monitoring, error handling and ops hardening included before getting ready for production deployments on-premis or cloud like aws, azure or gcp. Services ● Agentic AI & multi-agent systems (Reasoning, Decision, ReACT, LangGraph, LangChain, Claude, agent frameworks) ● LLM integrations & RAG pipelines (OpenAI, Claude, OpenClaw, LlamaIndex, vector DBs) ● Conversational & Voice AI (chatbots, voice assistants, TTS/STT) ● Support & ops automation (Zendesk, Slack, CRM automations) ● API integrations & partner onboarding (REST, GraphQL, payment hooks) ● Production hardening: monitoring, scaling, security, runbooks ● MVP delivery & project rescue Tech stack ● OpenAI, GPT, CrewAI, ChatGPT, LangChain, LangGraph, LlamaIndex, RAG, Agentic AI, AI agents, AI assistant, conversational AI, voice AI, TTS, STT ● Languages/Frameworks: Python, FastAPI, Flask, Django, Node.js, Spring, Ionic, React, Next.js ● Infra & DB: AWS (RDS, S3), Docker, Kubernetes, Redis, PostgreSQL, MongoDB, Pinecone, Weaviate, ChromaDB ● Integrations: Zendesk, Slack, HubSpot, Salesforce, Stripe/PayPal, REST & GraphQL APIs Other: prompt engineering, automation, workflow orchestration, monitoring, productionization Selected client feedback (All verifiable through my profile) ✅ "Hammad did great work for me, he understands a lot of different areas in the stack and works diligently to accomplish the goals I laid out for him. Hope to work with him again soon!" ✅ "Hammad is awesome!" ✅ "Hammad was very professional and proactive — I already hired him for another job." ✅ "Very quick and reliable work. Thanks Hammad!" Sound like a fit? Next steps: 🟢 Press ‘Message’ button in the top right-hand corner to start the conversation 💬 Write me a personalized note including why you think we’re a good fit to work together

Expert-Vetted • Top 10 % Global Talent Top Rated (Upwork) • $30 K+ Delivered I turn messy text and raw data into scalable products. 25+ Upwork contracts • 100 % Job Success Claude Code, Codex, Cursor, NLP, Machine Learning, and Deep Learning Implementations Model Deployments, Data analysis and Visualizations Custom & Interactive Dashboards and ML Apps Custom Agents/Chatbots and GPT Powered Workflows and Assistants I build revenue-driving AI agents, RAG search, and real-time voice assistants that cut support costs 30–60% and automate workflows end-to-end. 30+ shipped projects across startups and enterprises: voice bots that handle live calls, enterprise search over private data (with citations and guardrails), and tool-using agents that book meetings, update CRMs, and trigger workflows. 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 & 𝗦𝗸𝗶𝗹𝗹𝘀: - 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀 & 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: Python, Django, FastAPI, Flask, React, Next.js, Streamlit. - 𝗔𝗜 & 𝗟𝗟𝗠 𝗧𝗼𝗼𝗹𝘀: OpenAI API, LangChain, LangGraph, MCP, Anthropic (Claude), LlamaIndex, ElevenLabs, Whisper, Hugging Face Transformers, Pinecone, Weaviate, ChromaDB - 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲: RAG Pipelines, Multi-Agent Frameworks, Agentic AI, Workflow Orchestration, Vector Databases, Redis, Celery, Docker, Kubernetes, AWS, Azure, GCP - 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 & 𝗔𝗣𝗜𝘀: CRMs (HubSpot, Salesforce), ERPs, Firebase, Slack, MS Teams, Zapier, Make, Stripe, PayPal, REST & GraphQL APIs - 𝗗𝗮𝘁𝗮 & 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀: PostgreSQL, MySQL, MongoDB, Elasticsearch, Data Pipelines, ETL, Pandas, NumPy, Real-time Analytics - 𝗔𝗜 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀: AI Agents, Conversational AI, Chatbots, Document & PDF Q&A, Voice AI, Text-to-Speech, Speech-to-Text, AI Content Generation, AI-Powered Search 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿 • RAG over private data (vector + relational + hybrid retrieval), citations, guardrails, evals • Real-time Voice AI (STT/TTS, barge-in, call control, handoff to human) • Autonomous AI agents with function/tool calling (calendar, email, CRM, databases) • Analytics copilots, document Q&A, multimodal pipelines, dashboards • Production deployments with logging, tracing, tests, CI/CD, and cost control 𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸 Scope + success metrics → 2) MVP in 1–2 weeks → 3) Hardening (guardrails, evals, tests) → 4) Deploy + handover with docs. 𝗛𝗶𝗿𝗲 𝗠𝗲 𝗜𝗳 𝗬𝗼𝘂 𝗡𝗲𝗲𝗱 • AI Agent Developer / RAG Engineer / Voice AI Engineer • LangChain/LangGraph expert to ship fast, safely, within budget • Production LLM systems with measurable KPIs (cost, latency, accuracy) 𝗖𝗮𝗹𝗹 𝗧𝗼 𝗔𝗰𝘁𝗶𝗼𝗻 Tell me your target KPI (e.g., “reduce tickets 40%” or “voice bot for order status”), your data source(s), and deadline. I’ll reply with a clear plan and fixed-price milestones you can approve today. AI: Claude Code, Codex Langchain, Langgraph, OpenAI, Hugging Face, Transformers, Ollama, CrewAI, Pinecone, Qdrant, Chroma, Faiss, LangSmith, Langfuse, Autogen, Agno LLMs: OpenAI, GPT-4o, GPT-4, Deepseek, Qwen, Mistral, Llama 3, Claude, Sonnet 3.5, Groq, Grok Data Science & ML: Python, TensorFlow, PyTorch, Scikit-learn, OpenCV, NLTK, SpaCy Key Domains: Regression, Classification, NLP, LLM, RAG, TTS, STT, Voice Cloning, RVC, Computer Vision, Time Series, Neural Networks, PCA, Clustering, Dimensionality Reduction, Anomaly Detection Data Visualization & Analytics: Power BI, Matplotlib, Seaborn, Plotly, Streamlit, Gradio Web Scraping: BeautifulSoup, Scrapy, Selenium, Playwright Maths and Statistics: SciPy Data Engineering: SQL MLOps: Docker, Kubernetes APIs: Flask, FastAPI, AWS API Gateway Cloud Platforms: GCP, AWS, Azure, Datacrunch, Vast.ai Version Control: Git

Build production-ready AI agents, RAGs with LangChain + GPT for SaaS companies. Cut dev time 50% and scale to tens of thousands of users. Recent client feedback: “Zak was awesome! He delivered exactly what I asked faster than I expected! He is extremely knowledgeable” I don’t just write code, I solve business problems. Whether you need an AI agent handling customer inquiries 24/7, a custom workflow that eliminates manual tasks, or a scalable web application, I deliver solutions that save time and generate ROI. What I specialize in: 🤖 AI Agents & Automation by • Custom ChatGPT/Claude integrations • Workflow automation (Zapier / n8n alternatives) • Data processing pipelines • Lead generation bots ⚡ Modern Full-Stack Development Turning AI-generated prototypes into real applications - Yes, Vibe coding got you 80% there in 2 hours, but now you need the other 20% that actually matters: security, authentication, error handling, database design, and deployment that doesn’t crash at 3am • Next.js 14+ with App Router • React/TypeScript applications • Node.js/Python APIs • Real-time applications (WebRTC, WebSockets) ☁️ Cloud & Infrastructure • AWS serverless architecture • Database optimization (PostgreSQL, DynamoDB) • API design and integration • Performance optimization My approach: Fixed-price or hourly projects with clear deliverables. You get working software, not just hours logged. I handle the technical complexity so you can focus on growing your business. Ready to automate your next bottleneck or build something that scales? Let’s talk.

⭐ AI Engineer - Ready to Transform Your Business 🚀 5+ Years Experience in Production AI Systems ✅ First Project? Get 20% Discount to Build Trust 🎯 Fast Response Time - Available Within 2 Hours 💼 Free Consultation Call Before Starting 🔥 Unlimited Revisions Until You're 100% Satisfied Build AI that scales revenue—not just hype. Let's automate workflows, unlock insights, and deliver ROI. I'll work with you until you're completely satisfied, no extra charges Hi there I'm Shabnum, an AI Engineer with 4+ years building production-ready AI solutions that drive measurable business outcomes—from cutting operational costs by 60% to boosting sales by 30%. I don't just build AI. I build systems that automate workflows, analyze data at scale, and generate revenue for businesses ready to move fast. Your success is my priority. I build long-term partnerships through trust, transparency, and results that matter. 🔥 What I Deliver: 🤖 AI Agents & Intelligent Automation Design multi-agent systems that handle complex workflows Built with LangChain, LangGraph, OpenAI APIs, and custom orchestration logic. These aren't chatbots—they're decision-making systems. 📚 RAG Systems & Knowledge AI Turn your documents, databases, and internal knowledge into intelligent assistants. I build Retrieval-Augmented Generation (RAG) pipelines using FAISS, Pinecone, Chroma, and Weaviate—delivering context-aware answers with 95%+ accuracy. 💬 LLM Integration & Fine-Tuning Expert in deploying and optimizing GPT-4, Claude, Gemini, Llama 3, and Mistral. I handle prompt engineering, fine-tuning (LoRA, QLoRA), and cost optimization—so you get enterprise-grade performance without burning your budget. 🌐 Full-Stack AI Applications Build end-to-end AI-powered web apps, SaaS platforms, and internal tools with FastAPI, Django, Streamlit, React, deployed on AWS, GCP, and Azure with Docker/Kubernetes for scalability. 📊 Custom ML Models Train, evaluate, and deploy predictive models for classification, forecasting, anomaly detection, and recommendation engines using Scikit-learn, XGBoost, TensorFlow, and PyTorch. 🛠️ Tech Stack I Work With: AI/ML & LLMs: OpenAI GPT-4, Claude, Gemini, Llama 3, LangChain, LangGraph, LlamaIndex, Hugging Face Transformers, TensorFlow, PyTorch Vector Databases & RAG: FAISS, Pinecone, Chroma, Weaviate, Supabase, OpenSearch No-Code/Low-Code AI Solutions Backend Development: Python, FastAPI, Django, Flask, Node.js, REST APIs, GraphQL Frontend & UI: Streamlit, Gradio, React, Next.js DevOps & Cloud: Docker, Kubernetes, AWS (Lambda, EC2, S3, Bedrock), GCP, Azure, CI/CD Databases: PostgreSQL, MongoDB, MySQL, SQL Automation & Integration: n8n, Make, Zapier, API orchestration, webhook automation ✅ Why Work With Me? ✔️Unlimited Revisions Until Satisfied ✔️ Proven expertise in AI engineering and ML systems ✔️ Strong focus on business impact and long-term value ✔️ Fluent in both code and communication ✔️ Trusted by global clients to deliver on time and beyond expectations ✔️ Client Success First ✔️ Transparent Communication ✔️ Client satisfaction is my priority 🚫 Not a Good Fit If: ❌ You want instant AI results without iteration or feedback ❌You're looking for a "magic button" solution without understanding AI limitations ❌ You treat AI as a buzzword instead of a strategic tool 💬 Let's Talk About Your Project Whether you need AI agents, RAG systems, or custom ML models—I'm here to deliver results you can trust. 💯 My Promise to You: Unlimited Revisions – I'll work with you until you're completely satisfied, no extra charges 📩 Message me now. Let's build something great together.