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I am an AI Engineer with 4+ years of experience building and deploying production-ready AI systems across classical machine learning, deep learning, computer vision, NLP, and Generative AI. Unlike many AI developers who focus only on LLMs, I work across the entire AI stack. I believe the best solution isn't always a large language model or an expensive API. Many real-world problems are better solved using classical machine learning or deep learning, resulting in lower infrastructure costs, faster inference, reduced latency, and greater control over your solution. My goal is always to build the most effective system not the most expensive one. Some of the areas I regularly work in include: * Classical Machine Learning (XGBoost, LightGBM, CatBoost, Random Forests, SVMs, feature engineering, predictive modelling, forecasting, anomaly detection, recommendation systems) * Deep Learning (PyTorch, TensorFlow, CNNs, Transformers, Vision Transformers, knowledge distillation, model optimization) * Computer Vision (object detection, image classification, segmentation, OCR, document understanding, face recognition, multi-object tracking, embedding-based search) * NLP & LLMs (RAG, GraphRAG, agentic workflows, fine-tuning, embeddings, semantic search, document QA, information extraction) * Generative AI applications using OpenAI, Anthropic, Gemini, and open-source models * End-to-end AI pipelines from data collection and preprocessing to training, evaluation, deployment, and monitoring I also have extensive experience optimizing AI models for production through knowledge distillation, pruning, quantization, and efficient inference, making models smaller, faster, and more cost-effective for both cloud and edge deployments. On the engineering side, I work comfortably with Python, FastAPI, PostgreSQL, pgvector, asynchronous programming, Docker, GPU acceleration, and cloud deployments. I build complete AI products and APIs that are designed to scale not just research prototypes. Beyond implementation, I enjoy solving difficult research and engineering problems. Whether it's designing a predictive model, improving model accuracy, reducing inference costs, building an intelligent document processing pipeline, or deploying an LLM application, I focus on solutions that are reliable, maintainable, and practical for production. I also lead a team of AI engineers, giving me experience not only in technical execution but also in planning, code quality, mentoring, and delivering projects on time. If you're looking for someone who can understand the problem first, choose the right AI approach, and build a production-ready solution that balances performance, cost, and scalability, I'd be happy to help.

Turning AI Dreams into Reality – From Chatbots to Advanced NLP Solutions Struggling to find the right talent? Here’s why you’ve landed on the perfect profile: 1️⃣ Unlock the Secrets of Top Companies: I leverage the power of ChatGPT and other large language models (LLMs) to drive customer engagement and streamline interactions, giving you a competitive edge. 2️⃣ Leverage Hidden Methods: I use advanced machine learning techniques to build intelligent automation that increases efficiency, reduces costs, and accelerates business growth. 3️⃣ Integrate Cutting-Edge AI Solutions: I ensure your AI projects are innovative, scalable, and secure, setting the stage for sustainable growth and long-term success. Armed with a Bachelor's degree in Computer Science and AI, I am your go-to expert for transformative digital solutions. Core Expertise - AI Chatbots: Web, WhatsApp, Facebook, Instagram, X (Twitter), and Telegram. - AI Voice Assistants: Voice-enabled chatbots for web and phone. - NLP Solutions: NLU, NLG, Q&A systems, information extraction, text classification, summarization, and Named Entity Recognition (NER). Tech Stack - Back-end: Python (proficient in developing robust backend solutions) - Front-end: React.js, Next.js (creating seamless, interactive interfaces) - AI & ML: Advanced solutions using GPT-4, Llama, Mistral, Claude, LangChain, and more. AI & Automation Specialties - Generative AI & ChatGPT: Fine-tuned for specific use cases - RAG (Retrieval-Augmented Generation): Boosting content relevance and accuracy - Large Language Models: Expertise in models like GPT-4, Llama, Mistral, and more. - Transformers: Hugging Face, T5, RoBERTa, BERT, and SentencePiece - Voiceflow: Developing interactive voice experiences - Automation: Using Make.com, Zapier to streamline workflows - ML/DL Frameworks: PyTorch, scikit-learn, SpaCy, TensorFlow - Vector Databases: Pinecone, ChromaDB, FAISS, qdrant, unstructured.io - Cloud & DevOps: AWS Sagemaker, Docker, Lambda, RESTful APIs Industry Experience With over 4+ years of hands-on experience, I have specialized in developing NLP solutions for smart assistants and conversational AI. Project Highlights - Conversational AI Solutions: Designed and deployed AI/NLP systems for virtual assistants and chatbots, enhancing user satisfaction and engagement. - RAG Pipelines: Implemented retrieval-augmented generation systems to boost the relevance and quality of responses across various applications. - Generative AI Projects: Led the development of custom AI models, optimizing them for specific business needs. Let's Collaborate Do you have an AI or NLP challenge? Need to streamline processes with automation? Or curious how Generative AI can be applied to your business? Let’s talk! 🚀 💼 Check out my GitHub for the latest projects: [github.com/gautam-coder] 🤗 Explore my models, datasets, and demos on HuggingFace Hub ⚡ I stay up-to-date with the latest research and love contributing to open-source projects. Ready to make waves in the digital world? Let's innovate together! #AI #ChatGPT #LangChain #Automation #NLP #MachineLearning #SoftwareDevelopment #TechInnovation #AIConsulting

I build AI systems that go from prototype to production without falling apart under real usage, RAG pipelines, LLM-powered chatbots, document intelligence tools, and agentic workflows for legal, fintech, and compliance-heavy domains. Over the past few years I've built and shipped: legal RAG chatbots handling regulatory and compliance documents, production voice agents with real-time STT/TTS pipelines, OCR-driven document extraction systems for invoices and legal PDFs, multi-model benchmarking tools, and automated research-to-content pipelines. I work across the full stack this kind of work demands, retrieval and vector search (Pinecone, LangChain), LLM integration (OpenAI, Gemini, Claude, Groq), prompt engineering, backend systems (FastAPI, Streamlit, PostgreSQL), and browser/workflow automation. What clients consistently come to me for is fixing what's broken, not just building from scratch: chatbots giving inaccurate or off-topic answers, retrieval pipelines returning irrelevant context, brittle prompt logic, and systems that worked in a demo but not in production. I diagnose the actual root cause before touching code, then fix it and test against real scenarios. MSc Data Science & Analytics (Distinction, Cardiff University). Prior backend engineering experience at Accenture. If you're dealing with an AI system that isn't performing the way it should, or need one built right the first time, I'm available for quick-turnaround engagements.

I primarily work on four types of projects: 1) Crafting your AI Strategy Expand your business vision with the latest tools and frameworks. Teach me about your industry, and I'll steer your AI journey from discovery through deployment—identifying opportunities, crafting your roadmap, and shaping a data-driven strategy that delivers measurable impact. 2) Automation and Intelligent Workflows Transform time-sensitive, repetitive tasks into streamlined, AI-powered workflows—from lead validation and customer onboarding to compiling accurate, visually compelling reports and advanced analytics. I help boost efficiency, reduce manual effort, and scale your operations. 3) Conversational bots and Multi-Agent Systems Engage users and help employees with text and audio based conversations. Whether for customer service, data scientists on top of internal DBs and training material, or compliance-based communication, our solutions act autonomously and collaborate seamlessly to get things done. 4) AI-Assisted Full Stack Development Our team is trained to use AI judiciously during every stage of development. Vibe coding can go horribly wrong when in the hands of the uninitiated, but when you combine tools like Cursor with our engineering expertise, you get reliable new products and services faster than has ever been possible. My portfolio has more examples, but in short, if you're looking to build specialized agents to perform enterprise-ready tasks, you'd be hard-pressed to find a more qualified developer anywhere on Upwork. I'll be applying as an organization - krazimo (krazimo.com), so you'll get two world-class engineers (Mridul and I) working on your project, as well as a number of junior engineers to perform the smaller engineering tasks. You'll have full transparency into who's doing what, and our junior engineers work for approximately 2/3 our hourly rate. Here's a little about my 11 years of experience. Google (2019-2025) I spent six years as a senior software engineer at Google. My two major projects currently were Admin AI Assistant: I'm worked as an LLM specialist on building a RAG solution to improve Google's customer service in our workspace Admin Console. Gemini Reporting: Led a team of 10 people in building a large scale pipeline that can handle high QPS events on Gemini usage and report on value and RoI for our Gemini Product in Google Workspace. Apart from these, I have designed, implemented and shipped many technically complex products at Google. They often involved coordinating efforts among large teams and always required me to adhere to the highest engineering standards. I hope I can bring this expertise to your company. NLP Engineer (2016-2019) Cofounded, Headed AI and built the prototype and MVP for Butter.ai, which raised $3M in seed funding and was eventually acquired by Box. Worked on sentiment analysis problems for psychiatric chat centers (analysis user messages to flag dangerous situations) Worked on text extraction and question answering problems for a company that helped health insurance providers answer complex questions related to a customer's coverage. Mobile Engineer (2013-2015) Worked on a number of apps for clients - including building the cleartax.in android application. Worked at IBM as a software engineer on a MDM product that involved core android development (very low level control of services and permissions). At the moment, this process is more about exploring the space and seeing what people are looking for in the world of AI, outside massive AI-centric companies like Google (my hourly rate is actually below my current salary, so you're getting a pretty great deal while I perform this exploration)!

𝐁𝐚𝐜𝐤𝐞𝐝 𝐛𝐲 𝟖+ 𝐲𝐞𝐚𝐫𝐬 𝐢𝐧 𝐀𝐈 𝐚𝐧𝐝 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠, 𝐈 𝐡𝐚𝐯𝐞 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 𝟐𝟓+ 𝐞𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞-𝐬𝐜𝐚𝐥𝐞, 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐫𝐞𝐚𝐝𝐲 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐜𝐨𝐧𝐬𝐢𝐬𝐭𝐞𝐧𝐭𝐥𝐲 𝐚𝐜𝐡𝐢𝐞𝐯𝐢𝐧𝐠 𝐨𝐯𝐞𝐫 𝟗𝟎% 𝐚𝐜𝐜𝐮𝐫𝐚𝐜𝐲 𝐚𝐧𝐝 𝐫𝐞𝐝𝐮𝐜𝐢𝐧𝐠 𝐨𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐜𝐨𝐬𝐭𝐬 𝐛𝐲 𝐮𝐩 𝐭𝐨 𝟒𝟎% 𝐚𝐜𝐫𝐨𝐬𝐬 𝐢𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬. My expertise includes predictive modeling, deep learning, NLP, computer vision, and full-cycle MLOps. I also specialize in advanced AI domains such as Generative AI, LLMs, RAG architectures, AI agents, prompt engineering, vector databases, and cloud-native AI deployments, driving scalable, high-impact business results. 𝐑𝐞𝐜𝐞𝐧𝐭 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐭𝐨𝐫𝐢𝐞𝐬: - Built an LLM-powered healthcare assistant achieving 94% diagnostic accuracy while reducing physician workload by almost 50%. - Developed a RAG-based financial analysis system processing 100K+ documents daily with 96% precision. - Created an educational NLP platform, improving student engagement by 65% through personalized content delivery. 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧: 𝐋𝐋𝐌 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: Fine-tuning and optimizing GPT-4, LLaMA2, T5, and Mistral models with advanced prompt engineering for high-precision outputs. 𝐑𝐀𝐆 & 𝐊𝐧𝐨𝐰𝐥𝐞𝐝𝐠𝐞 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: Designing Retrieval-Augmented Generation pipelines using LangChain, FAISS, and Pinecone for intelligent, context-aware document retrieval and analysis. 𝐀𝐮𝐭𝐨𝐧𝐨𝐦𝐨𝐮𝐬 𝐀𝐠𝐞𝐧𝐭𝐬: Developing goal-driven, memory-enabled agents with structured decision-making and adaptive reasoning capabilities. 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐆𝐫𝐚𝐝𝐞 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭: Implementing scalable solutions on AWS, FastAPI, and SageMaker with robust MLOps pipelines, ensuring high availability and 99.9% uptime. 𝐓𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦𝐢𝐧𝐠 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐰𝐢𝐭𝐡 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐀𝐈: 𝐈 𝐨𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐚𝐥𝐢𝐳𝐞 𝐀𝐈 𝐫𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐢𝐧𝐭𝐨 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐭𝐡𝐚𝐭 𝐜𝐫𝐞𝐚𝐭𝐞 𝐜𝐨𝐦𝐩𝐞𝐭𝐢𝐭𝐢𝐯𝐞 𝐚𝐝𝐯𝐚𝐧𝐭𝐚𝐠𝐞𝐬: • 𝐓𝐫𝐚𝐯𝐞𝐥: Scalable booking systems with resilient pricing logic • 𝐇𝐞𝐚𝐥𝐭𝐡𝐜𝐚𝐫𝐞: AI-powered diagnostic assistance tools • 𝐅𝐢𝐧𝐚𝐧𝐜𝐞: Intelligent document processing and workflow automation • 𝐄𝐝𝐮𝐜𝐚𝐭𝐢𝐨𝐧: Adaptive learning platforms driven by data • 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞: Conversion-focused recommendation engines • 𝐋𝐞𝐠𝐚𝐥: Automated contract analysis and insights

Need an AI expert who has a proven track record? of delivering tailored high-performance NLP solutions, that drove multi-million dollar revenue outcomes? I’ve spearheaded a team of Gen-AI and NLP experts for R&D and client delivery work that revolutionized client operations, driving efficiency and growth. Let me help you develop / grow cutting-edge AI solutions that work. 💭 We're a perfect fit if you think: • "I need an AI solution that can help us unlock new revenue streams." • "We’ve tried other AI solutions, but they fell short – we can’t afford another misstep." • "I know the power of AI, but I need an expert to bring it to life for my business." • "I know what needs to be done for my use case in AI, but don't know how to do it myself" • "Our AI strategy is outdated, and we need someone to take it to the next level (or to the latest in market)" • "We need high-impact AI solutions that can handle our unique business challenges." • "We want an AI expert with a proven track record" ⭐️ Benefits of working with me: • Innovation at the table: With experience of working with cutting-edge techniques and R&D and multiple research projects, you will always be at the forefront of AI innovation in your use-case while working with me. • Deal with latency requirements: It might be that you need an AI system which may not be the best in market, but does your job and is lightweight. I have experience with delivering multiple projects in chatbots and APIs for clients in Energy, Health and Travel domains, with considerable latency requirements, where innovative AI solutions come to play, • Save money by getting experience with solutions of automation wherever concepts of NLP might be applicable in your project / business. ⚡ About me: Track record of excellence and research in AI: - Built innovative state-of-the-art solutions for multiple clientsmy previous company's capability development, where the solutions we delivered sold in millions of dollars to the clients - Multiple Research Projects in Multiple Universities in the latest advancements of Deep Learning in Particle Physics, Astrophysics, Oceanography - Recognition for AI solution in customer sentiment analysis throughout Bosch, for enhancing their marketing analytics through an innovative tool built for the same - Graduated from one of India's top 5 engineering colleges (IIT Kharagpur) with 99.9 percentile in the toughest examination in India (JEE Advanced).