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Hi! Jia Geng here. I am a Singaporean full-time freelancer. The services I provide include: market research, on-site visits, mystery shopping, software testing, payment testing, linguistic localization to Singaporean context, and native voice recording in and on-site interpretation services in Singaporean English and Mandarin. Are you looking to launch your app on Singapore's app stores? I provide app testing and debugging, and I have over 5 years of experience in Python, HTML, CSS, and JavaScript. I have access to a range of iOS, android, and Linux devices, and can test out a variety of local digital wallets (e.g. GrabPay, PayLah) and payment portals for you. I completed my Bachelors degree in Natural Sciences at University of Cambridge in 2021 with first-class honours. I am currently pursuing a PhD in integrating generative/predictive AI for cancer biology and biomedical datasets at the National University of Singapore.

I am a Python developer and AI engineer with 10+ years of experience building custom, production-quality software solutions in fast-paced startup environments. I have built software that addresses all stages of the AI lifecycle, including data acquisition and preprocessing, modelling, and visualization, both for conventional tasks (e.g. classification, object detection, or regression) as well as generative tasks. I have cross-industry experience, having worked on projects in the biomedical, finance, and human resources sectors. I frequently work in diverse teams, where I accelerate the problem solving process by breaking down complex, technical concepts into clear narratives. I am an expert communicator, capable of turning your business needs into specific deliverables. My projects are always well-documented and easy to maintain, as a look at my personal portfolio will show.

Hello! I’m an Expert Data Scientist with a strong background in Mathematics (MSc) and hands-on experience building 10+ deployed data science projects across finance, e-commerce, and technology. I help businesses transform raw data into actionable insights by designing and deploying scalable AI/ML solutions. Whether it’s predicting customer behavior, detecting fraud, forecasting demand, or building intelligent dashboards, I ensure every project delivers measurable business impact. ✅ What I can do for you: • Machine Learning & AI Models → Classification, Regression, Clustering, NLP, Computer Vision • Financial & Business Analytics → Credit scorecards, portfolio optimization, churn prediction, AML alert prioritization • Data Engineering → Data cleaning, preprocessing, feature engineering, pipeline automation • Deep Learning → Neural networks, autoencoders, TensorFlow & PyTorch solutions • Visualization & Insights → Power BI, Tableau, Python dashboards (Matplotlib, Seaborn, Plotly) 💡 My focus: Fast delivery, high accuracy, and clear communication so your project brings results—not just code. I’ve successfully worked with clients ranging from startups to financial institutions, helping them scale AI-driven decision-making. If you’re looking for a results-driven data scientist who speaks both business and tech, let’s work together. 🚀 Core Skills • Programming: Python, SQL, R • ML/AI: Scikit-Learn, TensorFlow, PyTorch, XGBoost, LightGBM • Data: Pandas, NumPy, Spark, AWS/GCP, APIs • Visualization: Power BI, Tableau, Plotly, Matplotlib, Seaborn • Specialized Areas: o Finance & Banking → AML, Credit Risk, Fraud Detection, Forecasting o E-commerce → Customer Segmentation, Recommendation Systems o General ML/AI → NLP, Predictive Modeling, Deep Learning

I build 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 and 𝐋𝐋𝐌 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 that ship to production — 𝐀𝐬𝐲𝐧𝐜 𝐑𝐀𝐆 pipelines, 𝐀𝐮𝐭𝐨𝐧𝐨𝐦𝐨𝐮𝐬 𝐀𝐠𝐞𝐧𝐭𝐬, and 𝐂𝐮𝐬𝐭𝐨𝐦 𝐌𝐨𝐝𝐞𝐥 integration. 𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 full-stack development trusted by Fortune 500s, Growing business, and Startups. I provide strategic and technical consulting for businesses, startups, and enterprises looking to leverage AI/ML, Generative AI, Agentic AI, Full Stack Development, Cloud Architecture, and Product Engineering. 🏆 𝗣𝗿𝗼𝘃𝗲𝗻 𝗧𝗿𝗮𝗰𝗸 𝗥𝗲𝗰𝗼𝗿𝗱 ✅ 100% Job Success Score ✅ Consistent 5★ Client Feedback ✅ Full stack development with AI Integration ✅ Experts for Agent Observability, AI Search Optimisation and AI Automation ✅ Cross Platform AI Mobile Apps & Web Development 💡 What I Do Best ✅ Agentic AI | GenAI | LLM Routing | Orchestrate Multiple LLMs ✅ Local LLM Fine-Tuning with Llama, Mistral, Qwen, Ollama, LM Studio ✅ Agent Observability with Grafana , DataDog , Dynatrace ✅ LLM performance monitoring, Latency reduction, & Cost Optimisation ✅ Generative AI & LLM Application Architecture & Multi-Agent System Design ✅ MCP (Model Context Protocol) Architecture & Implementation ✅ Conversational AI with Wishper API, OpenAI, Langchain, LangGraph, CrewAI ✅ AI RAG Pipeline, AWS Vector Database, Voice AI solutions ✅ AI Workflow Automation with n8n, Make, Relevance AI & OpenClaw ✅ Prompt Engineering, MLOps, Datascience & Scalable Agentic AI Deployment What I deliver: 🔹 𝐀𝐈/𝐌𝐋 𝐭𝐡𝐚𝐭 𝐬𝐡𝐢𝐩𝐬 — LLM integrations, RAG, autonomous agents, OpenAI/Claude APIs, fine-tuning, NLP, computer vision 🔹 𝐀𝐈 𝐒𝐞𝐚𝐫𝐜𝐡 𝐎𝐩𝐭𝐢𝐦𝐢𝐬𝐚𝐭𝐢𝐨𝐧 ( 𝐀𝐈 𝐒𝐄𝐎 ) — AEO , GEO , LLMO , AISEO , EEAT 🔹 𝐃𝐚𝐭𝐚 & 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 — Postgres, vector DBs (Pinecone, Chroma, Supabase), Docker, Kubernetes, AWS DevOps 🔹 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 — Workflow and CRM intelligence with n8n, Make, and custom pipelines 🔹 𝐅𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐰𝐞𝐛 & 𝐀𝐏𝐈𝐬 — MERN , PERN , MEAN , Full Stack , Etc. 🔹 𝗖𝗿𝗼𝘀𝘀-𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 — Experiences including Flutter ( Website & Mobile Application ) and Progressive Web Apps. Experience to Run Local LLM in Mobile App. I've taken several SaaS products from prototype to production, and my Upwork clients keep coming back because I focus on working software, clear communication, and hitting deadlines. Whether you need an AI feature added to an existing product or a full app built end-to-end — design, build, deploy — I can own it. Send me a message about what you're building and I'll tell you exactly how I'd approach it. Top Skills & Expertise 🤖 𝐀𝐈, 𝐀𝐠𝐞𝐧𝐭𝐢𝐜 𝐀𝐈 & 𝐋𝐋𝐌 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • AI Agents & Multi-Agent Systems • MCP (Model Context Protocol) • OpenAI, Claude, Gemini, DeepSeek, Qwen, Llama • LangChain, LangGraph, CrewAI, AutoGen • RAG Pipelines & Knowledge Bases • Vector Databases (Pinecone, ChromaDB, Weaviate, S3 Vectors) • Prompt Engineering & Fine-Tuning • AI Workflow Automation • AI Chatbots & Virtual Assistants • Local LLM Deployment (Ollama, LM Studio) • Generative AI Applications • AI SaaS Platforms 🐍 𝐏𝐲𝐭𝐡𝐨𝐧 & 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • Python Development • Django REST Framework (DRF) • Odoo ERP Development • REST APIs • GraphQL APIs • Microservices Architecture • Celery & Redis • PostgreSQL • MongoDB • MySQL • Supabase • Docker • Kubernetes ⚛️ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 & 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • React.js • Next.js • Angular • NestJS • Node.js • TypeScript • JavaScript • Redux • Zustand • Tailwind CSS • Material UI • Responsive Web Applications • SaaS Development • MERN Stack Development ☁️ 𝐂𝐥𝐨𝐮𝐝, 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 • AWS • Azure AI Foundry • CI/CD • Docker • Kubernetes • Terraform • DevOps • Power BI • Salesforce • HubSpot • ClickUp • n8n • Make • Relevance AI 🛠️ 𝗧𝗼𝗼𝗹𝘀 • GitHub • GitLab • Bitbucket • Jira • Trello • Asana 🔑 𝐊𝐄𝐘𝐖𝐎𝐑𝐃: AI Developer, AI Engineer, AI SaaS Developer, Generative AI Developer, AI Agent Developer, Gen AI, ChatGPT Developer, Claude AI Developer, MCP Developer, Cursor AI Developer, LangChain Developer, LLM Apps Developer, AI Automation Expert, AI Workflow Automation, Custom AI Platforms, AI Integrations, Python AI Developer, Node.js AI Developer, Next.js AI Developer, React AI Developer, AI Chatbot Developer, AI MVP Development, SaaS Developer, Full Stack AI Developer, AI in FinTech, AI in Healthcare, AI Consultant, Pinecone Developer, AI Prototyping Expert, n8n Automation Developer, OpenAI API Developer, Claude API Integrations, FastAPI AI Developer, Django AI Developer, AI Product Developer, Python Developer, Full Stack Developer # Agentic AI # MCP Server Development # Claude Code # AI Coding Agent # AI Automation # LangGraph # CrewAI # AutoGen # LlamaIndex # Vercel AI SDK # AI Voice Agent # AI Customer Support Agent # AI Sales Agent # AI Workflow Orchestration # Vector Search # Knowledge Graph # Multi-Agent Systems

I am SK Ahammad Fahad, a Doctor of Engineering (DEng) candidate at the Singapore Institute of Technology, and a seasoned Data Scientist with over 5 years of hands-on experience delivering business-critical AI solutions across Asia. My expertise spans advanced machine learning, LLM applications, predictive analytics, financial modeling, and business intelligence, backed by a robust research and publication record. What I Offer: Custom AI & LLM Agent Development: Proficient in building intelligent agents, chatbots, and research assistants using GPT-4, LangChain, LlamaIndex, and state-of-the-art vector search. I deliver solutions that automate research, investment analysis, and decision support. Financial & Business Data Science: Extensive experience designing forecasting systems, risk models, and recommendation engines for retail, finance, and e-commerce. Skilled in financial time-series analysis, pricing optimization, and scenario planning. Predictive Analytics & Business Intelligence: Transform raw data into actionable insights and executive dashboards using Python, SQL, and modern business intelligence (BI) tools. My solutions consistently help clients make smarter decisions, optimize operations, and drive growth. Research & Model Validation: Author of 10+ peer-reviewed publications. Experienced in rigorous model validation, explainability, and scientific documentation. I bridge academic excellence with real-world delivery. Project Leadership & Communication: Strong history of leading data science teams, collaborating with stakeholders, and translating business needs into robust, scalable data products. I believe in clear communication, milestone planning, and long-term value. Technical Stack: Python (NumPy, pandas, scikit-learn, TensorFlow, LangChain), R, SQL, OpenAI API, LlamaIndex, FAISS/Pinecone, Google Sheets/Excel automation, and Streamlit. Certifications: Stanford University, Wharton School of Business, University of Michigan, DeepLearning.AI, and IBM. Let’s work together if you need: A custom AI or LLM investment analyst agent Predictive analytics or risk modeling for financial/retail data Dashboard automation or data-driven business transformation Academic research, model validation, or technical consulting Let’s discuss how I can bring AI-powered, actionable insights to your business!

Overall 14 years of IT experience with 4 years as a Data Scientist and initial 9 years as a Software Engineer. • Innovative AI Engineer with expertise in developing, deploying, and optimizing machine learning, deep learning, and generative AI solutions that enhance business performance and customer experience. Skilled in Python, TensorFlow, PyTorch, NLP, and cloud AI platforms (Azure AI, AWS Sagemaker, Google Vertex AI). • Currently completed an Executive MBA (EMBA) Singapore with a focus on strategic leadership, digital transformation, and innovation, enabling a strong ability to bridge the gap between technical execution and business impact. Passionate about leveraging AI to drive data-driven decision-making, process automation, and sustainable growth across industries. • 4+ years of experience applying ML, NLP,DL and statistical analysis & modelling solutions to business problems. • Practical experience in leveraging LLMs and RAGs for solution development, model fine-tuning, evaluation and performance optimization. • Drove end-to-end Data Science projects—from problem scoping to model deployment—ensuring full accountability and strategic alignment with business objectives. • Developed a Conversational AI chatbot that streamlined customer support with high efficiency, reducing agent handovers by 20% and significantly lowering operational costs by 10% in one year. Leveraged Customers consumption data to create a profiling model, boosting personalized channel/pack recommendations, increasing conversion rates by 50% and sales by 5%, generated €72K revenue from a single campaign.