🚀Stop wasting time on tasks that can be automated. Let’s build systems that scale themselves. I'm Muhammad — a senior automation engineer and full-stack developer with over 7 years of experience delivering robust web platforms, AI-powered workflows, and blockchain solutions for startups, SMEs, and enterprise clients. 📍 Lahore, Pakistan | 🏆 100% Job Success | 🚀 Rising Talent | 💰 $7K+ Earned | ⏱ 325+ Hours Worked Clients trust me to build solutions that solve real problems — whether it's replacing manual work with AI automation, building scalable web apps, or integrating smart contracts and Web3 tech. 💡 What I Can Do For You ✅ AI & Workflow Automation Build powerful automations using Zapier, n8n, Make.com Develop AI assistants with ChatGPT, LangChain & OpenAI Automate onboarding, CRMs, lead flows, email triggers, and task syncs Connect apps like Slack, Notion, Airtable, Calendly, HubSpot, Google Sheets Build bots with Python for scraping, scheduling, and notifications ✅ Full Stack Development (MEAN/MERN) React.js, Next.js, Node.js, Angular – custom SaaS apps and web dashboards REST APIs, GraphQL, secure backend development Tailwind CSS, Redux, Storybook for UI/UX excellence MongoDB, PostgreSQL, MySQL – data-backed app logic and scaling ✅ Blockchain Development Smart contracts (Solidity), NFTs, ERC-20, ERC-721, ERC-1155 Web3 wallet integration, DApp logic, token vesting, staking systems Ethereum/Solana deployments with secure audit-ready code 🔥 Real Automation Systems I’ve Delivered 🛠️ Auto Repair Chain – Workflow Automation (5 Locations) → Synced bookings to Google Sheets + CRM → Triggered WhatsApp confirmations via Twilio → Generated service logs and staff dashboards ✅ Result: 95% fewer errors, 100+ manual tasks eliminated monthly 🏢 Real Estate CRM + Lead Router → Captured Facebook Ads + Typeform leads via n8n → Scored & tagged leads → auto-booked calls in Calendly → synced to HubSpot ✅ Result: 3x faster lead response, 18% boost in close rate 🧠 Internal ChatGPT Assistant for Law Firm → Used LangChain + OpenAI + Pinecone to train on firm docs → Delivered answers in natural language from legal SOPs and policies → Deployed securely in Notion portal ✅ Result: 60% drop in internal support requests 📦 Ecommerce Price Tracker + Shopify Auto-Updater → Python scraper pulled competitor data daily → Slack alerts triggered + listings auto-updated via Shopify API ✅ Result: Saved 10+ hours/week, pricing stayed competitive 24/7 💼 AI-Driven Hiring Workflow → Make.com processed resumes → GPT-4 ranked candidates → Sent auto-replies, updated Google Sheets + notified via Slack ✅ Result: 75% reduction in screening time 🛠️ Tech Stack Summary AI & Automation: ChatGPT, OpenAI, Zapier, Make.com, n8n, LangChain, Python, Pinecone Web Stack: React, Next.js, Angular, Node.js, Express, MongoDB, PostgreSQL, MySQL Blockchain: Solidity, Ethereum, Web3.js, Smart Contracts, NFTs Cloud & DevOps: AWS (Lambda, EC2, RDS), Docker, Git, Jenkins APIs & Tools: REST, GraphQL, Webhooks, Slack API, Notion API, Airtable, Google Sheets 💬 Why Clients Work With Me I deliver outcomes, not just features I combine code quality with process clarity I adapt fast and solve business problems, not just technical ones I’m quick, responsive, and always aligned with your goals 📩 Let’s build something that saves you time, scales efficiently, and delivers results. Message me — I usually reply within a few hours.

Most AI projects fail in production, not because the idea was wrong, but because the system was never built to handle real data, real users, and real edge cases. I'm Rajan, an AI Engineer with 7+ years building LLM systems, RAG pipelines, and AI agent frameworks that go beyond demos into actual deployment. Based out of ChicMic Studios, I've crossed $100K+ on Upwork with a 99% Job Success Score and Top Rated Plus, not by taking every project, but by delivering ones that work. 🧠 Where I Usually Get Called In Most clients come to me at one of these points: They built an AI agent using OpenAI or LangChain - it works in testing but hallucinates, stalls, or breaks when connected to real APIs or real user inputs Their RAG system retrieves the wrong chunks, misses context, or gives inconsistent answers despite having good source data Their n8n or Make com automation was working until it wasn't tools changed, webhooks broke, logic grew too complex They need a chatbot or voice AI that actually holds a conversation, not a glorified FAQ responder They're evaluating LLM fine-tuning or prompt engineering strategies and need someone who's done it in production, not just read the docs If any of that sounds familiar, we should talk. 🔧 What I Actually Build AI Agents & Agentic Systems Multi-step autonomous agents using LangChain, LangGraph, CrewAI, and AutoGen with real tool use, memory, and error handling. Not single-prompt wrappers. RAG Pipelines & Knowledge Systems End-to-end retrieval-augmented generation with Pinecone, Weaviate, Chroma, or FAISS, chunking strategy, embedding optimization, reranking, and query routing included. n8n & Make com Workflow Automation Business logic automation that replaces manual work across CRMs, databases, and third-party APIs, built to stay stable as your stack evolves. LLM Integration & API Architecture OpenAI GPT-4o, Gemini API, Azure OpenAI, Anthropic Claude connected cleanly to your existing systems with proper rate handling, fallbacks, and cost management. Chatbot & Conversational AI Context-aware chatbots for support, sales, and internal operations, built on ChatGPT, Claude, or Gemini with conversation memory and escalation logic. Voice AI Agents Low-latency voice bots that handle real conversations, built with streaming, interruption handling, and natural flow, not just text-to-speech wrappers. LLM Fine-Tuning & Prompt Engineering Custom fine-tuning on GPT, LLaMA, and Mistral models — plus systematic prompt engineering and evaluation frameworks for consistent, production-grade outputs. ⚙️ Tech I Work With Daily LLMs — GPT-4o, Claude 3.5, Gemini 1.5, LLaMA 3, Mistral Agent Frameworks — LangChain, LangGraph, CrewAI, AutoGen, Flowise, Langflow Vector Databases — Pinecone, Weaviate, Chroma, FAISS Automation — n8n, Make com, Zapier APIs — OpenAI API, Gemini API, Azure OpenAI, Anthropic API Languages — Python, Node.js, JavaScript Cloud — AWS, GCP, Azure 🎓 Background MCA, Panjab University | Kaggle Expert in Generative AI & NLP | Associate Software Engineer, ChicMic Studios 💬 How I Engage I don't start with code, I start with your current setup, your bottlenecks, and your actual use case. Most of the time, the problem isn't what clients think it is. A 30-minute scoping conversation usually saves weeks of rework. Most engagements start with a 30-minute scoping call where I map your current setup, identify the real bottleneck, and tell you honestly what's achievable, before any commitment. I keep communication tight, flag risks early, and build systems you can hand off to your team without needing me on retainer to maintain them. If your AI project is stuck, broken, or still living in a Jupyter notebook, send me a message with where you are and what's not working. I'll tell you honestly whether I can help and what it would take. If that sounds like what you need, send me a message with where you are and what's not working. Last Updated June 04, 2026

Hi, I’m Sandeep - a Principal Software Architect and Full Stack Developer with 14+ years of experience building scalable SaaS platforms, AI-powered applications, enterprise systems, mobile apps, and high-performance web solutions for startups, agencies, and global businesses. I help companies transform ideas into production-ready digital products with a strong focus on scalability, performance, automation, clean architecture, and business growth. From MVP development to enterprise-grade platforms, I provide end-to-end product engineering services with modern technologies and agile execution. ▶Core Expertise 📱 Mobile Apps: Flutter, React Native, Swift, Kotlin, Cross-Platform & Native Development 🌐 Frontend: React.js, Next.js, Vue.js, TypeScript, Tailwind CSS, Responsive UI/UX ⚙️ Backend & APIs: Node.js, NestJS, Express.js, FastAPI, Django, Laravel, REST API, GraphQL 🗄️ Database & Cloud: MongoDB, PostgreSQL, MySQL, Firebase, Supabase, Redis, AWS, GCP, Azure, Docker, Kubernetes, CI/CD 🤖 AI & Automation: OpenAI API, Claude API, LangChain, AI Agents, Chatbots, n8n, Zapier, CRM Automation, API Integrations ▶Industries & Platforms I’ve Worked On ✔ AI SaaS Platforms ✔ Healthcare & Telemedicine Apps ✔ E-commerce & Marketplace Platforms ✔ ERP & CRM Systems ✔ Food Delivery & Grocery Apps ✔ Real Estate Platforms ✔ Fintech & Digital Wallet Solutions ✔ Education & LMS Platforms ✔ Logistics & Fleet Management Systems ✔ OTT & Video Streaming Platforms ✔ Dating & Matchmaking Apps ✔ Booking & Reservation Platforms ✔ Restaurant & QR Ordering Systems ✔ Taxi & Mobility Applications ✔ On-Demand Service Platforms ✔ Construction & Field Service Software ▶What I Deliver - End-to-End Product Development - Product Strategy & Technical Architecture - UI/UX Planning & Wireframing - Frontend & Backend Development - API Integrations & Automation - Cloud Deployment & DevOps - Application Scaling & Maintenance - Business-Focused Engineering - MVP Development for Startups - Scalable SaaS Applications - AI Integration & Automation Systems - Performance Optimization - Security & Scalable Architecture - Agile Development Process ▶Why Clients Work With Me ✅ 14+ Years of Development Experience ✅ 50+ Successfully Delivered Global Projects ✅ Strong Technical & Business Understanding ✅ Clean, Scalable & Maintainable Code ✅ Fast Communication & Transparent Workflow ✅ Long-Term Collaboration Approach ✅ Product-Focused Development Mindset ✅ Scalable Architecture for Future Growth ▶Let’s Build Your Next Product Whether you need: an AI-powered SaaS platform, a scalable mobile app, a modern web application, an automation system, or a custom enterprise solution, I can help you design, develop, launch, and scale it efficiently. 👉Let’s discuss your product vision, roadmap, and business goals to build something impactful and scalable.

I am a Senior Blockchain Developer and Technical Lead with 8+ years of experience building secure, scalable, and production-ready blockchain products across Solana, Ethereum, BSC, Polygon, and EVM-compatible chains. I help startups, agencies, and product teams design, build, audit, and launch Web3 products, from MVP to production. My core expertise includes: Smart Contract Development Solidity, Rust, Anchor Framework, Hardhat, Foundry, OpenZeppelin, ERC20, ERC721, ERC1155, SPL Token, staking contracts, vesting contracts, presale contracts, airdrop systems, NFT smart contracts, and token launch systems. DeFi & DEX Development DEX integrations, AMM systems, liquidity pools, staking platforms, yield farming, Uniswap, PancakeSwap, Raydium, Jupiter Aggregator, Chainlink Oracle integrations, and DeFi dashboards. Solana Development Rust smart contracts, Anchor programs, SPL tokens, Solana NFT systems, Raydium integration, Jupiter integration, Solana trading bots, and wallet-based dApps. Web3 Frontend & Wallet Integration MetaMask, WalletConnect, Phantom Wallet, Web3.js, Ethers.js, Viem, Wagmi, React.js, Next.js, and blockchain API integrations. Bots & Automation Crypto trading bots, DEX trading bots, Telegram crypto bots, arbitrage bots, market-making bots, token sniper bots, wallet monitoring, and market data WebSocket systems. As a Technical Lead, I also help with blockchain architecture, code reviews, smart contract security, gas optimization, team coordination, deployment planning, and production support. I focus on clean architecture, secure contracts, clear communication, and delivery that matches real business goals, not just writing code.

I don't just answer customer support tickets, I study what they reveal about the product. Most early-stage SaaS teams have founders or engineers stuck in the inbox, context-switching between building and supporting users. Every hour spent in the inbox or on Social Media is an hour not spent shipping, and every ticket closed without extracting the product signal is a missed chance to improve the product. I take that load off the team, resolve issues accurately the first time, and feed the patterns back so the same issues stop coming back. ---------------------------------------------------------------------- What I do: - Triage and resolve customer support across email, chat, and social media channels like Linkedin, Reddit, Facebook, Instagram, Youtube, TikTok for SaaS, ecommerce, telehealth, fintech, and digital products. Compliance-sensitive environments included. - Diagnose technical customer issues across WordPress, CRMs, crypto wallets, email automation, DNS, and similar stacks. - Write and maintain the knowledge base, FAQs, and SOPs that make self-service work and that give any AI support layer the accurate context it needs to handle tier-1 tickets without falling over. - De-escalate billing disputes, workflow confusion, and other high-pressure situations without leaving the customer feeling unheard. - Integrate support tools and connect them to automation platforms (Zendesk, Freshdesk, Go High Level, n8n, Make, Zapier, Gumloop) to remove repetitive work. - Share the voice-of-customer patterns I see with the product team, so the friction users hit becomes input for the next release instead of recurring tickets. - Design the workflows and content layer that lets AI support tools handle the easy 60-70 percent of tickets accurately, while humans focus on the rest. ---------------------------------------------------------------------- Why work with me: - Multi-year support experience across WordPress com, crypto wallet with millions of users, telehealth, fintech, and ecommerce. - Certified in Zendesk Customer Service, CompTIA Project+, Google IT Support, and Cryptocurrency. - Comfortable explaining complex or abstract concepts to non-technical customers in plain language they can act on. - Available 40+ hours per week including weekends, EAT (UTC+3), with clean overlap into UK, US East Coast, and Asia-Pacific business hours.

Hello! Full-time freelance developer — fast, reliable, and always just one message away. I am a highly skilled software engineer and Top Rated freelancer, specializing in developing trading solutions for TradingView (Pine Script), TradeStation (EasyLanguage), and MultiCharts (PowerLanguage). If you're looking to take your trading to the next level with cutting-edge technology, I’m here to help you achieve that goal. 👨‍💻 What Can I Do for You? 🔹 Indicators and Strategies: Development of unique tools tailored to your specific needs. 🔹 Backtesting and Optimization: Analyze strategies to enhance their efficiency and performance. 🔹Trading Automation: Creation of trading robots for TradingView, TradeStation, and MultiCharts. 🔹 Custom Solutions: Bespoke tools, Strategy Builder Kits, and more. 👨‍💻 Why Choose Me? ✅ Top Rated Status: Among the top developers on the platform with a 97%+ project success rate. ✅ Extensive Experience: Over 1,000 completed projects and 10+ years of trading expertise. ✅ Quality and Attention to Detail: Clean, well-structured code tailored to your requirements. ✅ Speed: Rapid development and prototyping, allowing you to test your ideas as soon as possible. ✅ Ongoing Support: Assistance with setup, refinement, and optimization even after project completion. 👨‍💻 My Additional Services 🔹Technical Consulting: Guidance on selling invite-only scripts on TradingView or scaling your trading solutions. 🔹Trading Algorithms: Development of complex strategies with practical knowledge of advanced risk management systems (Kelly Ratio, Optimal F, and more). 🔹Multi-Platform Solutions: Automation via PineConnector, 3commas, Alertatron, and other services. 🤝Let’s Work Together! I can help you transform your ideas into powerful tools that boost your profits and simplify your trading. Send me a message or schedule a consultation to discuss your project today!

Are you looking for an architect who can deliver 10x faster using AI, without sacrificing security and scalability? With over 5 years of dual expertise as a Systems Engineer (C++) and a Cloud-Native Full Stack Developer, I build secure, high-performance backends and complex data pipelines. I don't just write scripts—I design enterprise-grade architecture. By integrating Agentic AI Workflows into my development process, I rapidly deploy complex, bug-free features—from multi-cloud AWS backends to algorithmic trading engines. I bridge the gap between low-level hardware performance and scalable web applications. 🔥 Core Expertise (Why Upwork Matched Us): Cloud & SecDevOps: AWS (Expert), Azure, Docker, Kubernetes, CI/CD, Infrastructure Security. Backend & APIs: Python, Django, REST APIs, Microservices, System Architecture. Advanced Systems: C++ (17/20), RTOS, Socket Programming, Linux Kernels. Next-Gen Tech: Agentic AI Development, LLM Integration (Langchain, OpenAI), Blockchain. I focus on results, security, and speed. As a Polyglot Architect, I ensure memory-safe environments, zero-downtime deployments, and highly robust integrations. Let’s jump on a call and outline the architecture for your next big project.

𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗱𝗼𝗲𝘀𝗻’𝘁 𝘀𝗲𝗹𝗹 𝗶𝘁𝘀𝗲𝗹𝗳. 𝗖𝗹𝗲𝗮𝗿 𝘁𝗵𝗶𝗻𝗸𝗶𝗻𝗴 𝗱𝗼𝗲𝘀. 𝗜 𝗵𝗲𝗹𝗽 𝗳𝗼𝘂𝗻𝗱𝗲𝗿𝘀, 𝗲𝘅𝗲𝗰𝘂𝘁𝗶𝘃𝗲𝘀 𝗮𝗻𝗱 𝗮𝗴𝗲𝗻𝗰𝗶𝗲𝘀 𝘂𝘀𝗲 𝗔𝗜 𝗰𝗼𝗮𝗰𝗵𝗶𝗻𝗴, 𝗰𝗼𝗻𝘁𝗲𝗻𝘁 𝘀𝘁𝗿𝗮𝘁𝗲𝗴𝘆 𝗮𝗻𝗱 𝘁𝗵𝗼𝘂𝗴𝗵𝘁 𝗹𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 𝘁𝗼 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗲 𝗯𝗲𝘁𝘁𝗲𝗿, 𝘄𝗼𝗿𝗸 𝘀𝗺𝗮𝗿𝘁𝗲𝗿 𝗮𝗻𝗱 𝗴𝗿𝗼𝘄 𝗳𝗮𝘀𝘁𝗲𝗿. With 20+ years in corporate finance, banking & business development, including GE Capital, HSBC & Lloyds Bank International, followed by over a decade specialising in AI, blockchain, fintech & emerging technologies, I bring strategic thinking & commercial judgement that elevate my high-quality content creation. 🚀 How I Can Help: 🧠 Executive AI Consulting, Coaching & Training (1-to-1 or teams) ✍️ Strategic Communications & Executive Ghostwriting 💰 Investor Narratives & Fundraising Support 📄 White Papers, Research & Industry Reports 🎤 Keynote Speeches & Executive Presentations 🌐 Executive LinkedIn Thought Leadership 🎯 Strategic Messaging & Market Positioning Artificial intelligence is changing how organisations work, yet most professionals are still only using a fraction of its potential. I help clients bridge the gap between basic prompting and practical AI adoption by building workflows that improve productivity, strengthen decision-making and consistently produce higher-quality work. Every coaching engagement is tailored to your role, business and objectives. Typical coaching includes: ⚡ Executive productivity & AI workflows 🔍 Research & strategic analysis ✍️ Thought leadership & content creation 💼 Fundraising research, investor outreach & due diligence 📚 AI workflows, Standard Operating Procedures (SOPs) & quality frameworks 📈 Building practical AI capability that creates long-term competitive advantage I don't just teach AI tools. I help you redesign how you work so AI becomes part of your everyday operating model. Alongside AI consulting, I continue to advise clients on strategic communications. One of my greatest strengths is translating highly technical concepts into plain English that investors, executives, customers and regulators immediately understand. Whether I'm developing a white paper, refining an investor narrative or preparing a keynote, my focus is always on improving the thinking behind the communication, not simply the words themselves. Clients value that I challenge assumptions, combine commercial judgement with practical AI capability and leave them stronger than when we started. 🏆 Career Highlights 🏛 20+ years in corporate finance, banking & business development 🚀 10+ years advising AI, blockchain, fintech & emerging technology ventures 📚 Author of Down the Rabbit Hole and The Architecture of Doubt 🎤 Speaker at 130+ conferences, workshops and executive training sessions worldwide My clients don't hire me because they need more content. They hire me because they need better thinking. So, if you're looking to: ✅ Communicate complex ideas with clarity ✅ Become significantly more productive with AI ✅ Build executive thought leadership ✅ Raise capital with greater confidence Let’s begin the conversation. Either send me a message with a brief overview of your project, or invite me to your project and let's explore together how we can take your project and your skills and those of your teams to the next level.

Top-Rated Marketplace UI/UX Designer | B2B & Service Marketplaces 7+ years designing two-sided platforms — vendor dashboards, multi-vendor flows, marketplace experiences that scale past cold-start. $720M+ processed through platforms I've designed and led. 5.0 rating on Clutch. CSSDA Award Winner. Dribbble Select Agency. Sounds like the partner your marketplace needs? Marketplace projects I've designed and led: Promata — multi-sided marketplace with vendor onboarding, buyer flows, and payout logic LeaseLinking — rental/leasing platform with multi-party transaction flows Frandex — franchise marketplace connecting franchisors and franchisees end-to-end CarCompany.AI — vehicle marketplace, CSSDA award winner I keep complex two-sided systems simple and focused on real GMV — not visuals alone. No "Shopify store with one extra page" pretending to be a marketplace. Who do I collaborate with? B2B marketplace founders, service marketplace operators, multi-vendor platform teams, seed to Series A startups, and enterprises launching marketplace verticals. Founders who want vendor activation, buyer retention, and a platform that scales past cold-start. What kind of marketplace projects? B2B wholesale, service marketplaces, multi-vendor eCommerce, booking and rental, franchise and partner networks, verticalized industry marketplaces. Whatever the two-sided complexity, I design for liquidity, trust, and time-to-first-transaction. How does it work? Quick consultation — 30 min to align on your marketplace model Marketplace UX audit & research — for live platforms, I find where vendors drop off and buyers lose trust. For new ones, I map liquidity and unit economics before pixels. Wireframes & prototypes — vendor and buyer flows, admin panels, transaction logic in Figma before engineers touch code Marketplace UI design — clean, scalable interfaces for both sides with a design system that grows with your platform Handoff & dev support — responsive layouts, component libraries, docs, full team for Figma → React/Node/Python or Shopify Plus build Post-launch care — analyzing GMV, vendor activation, retention, iterating as your marketplace scales Why do clients stick with U1CORE? $720M+ processed through platforms we've built 5.0 stars on Clutch across two profiles CSSDA awards · Dribbble Select agency status 132 Clutch reviews — highest among studios at our tier Marketplace projects end-to-end, from discovery to post-launch Teams serving Forbes 30U30 founders and $1M+ capitalized companies What I deliver as a Marketplace UI/UX Designer: Marketplace UI/UX Designer (Figma): Structured marketplace UX and UI from vendor onboarding to high-fidelity buyer interfaces. Scalable design systems, two-sided UX patterns, production-ready layouts. B2B Marketplace Designer: Wholesale and procurement platforms — account-based pricing, approval workflows, multi-tier buyer hierarchies, quote-to-order flows, ERP integration UX. Service Marketplace Designer: Provider onboarding, booking and scheduling, ratings and reviews, dispute resolution UX, payouts, and trust signals that drive repeat bookings. Multi-Vendor Platform Designer: Vendor portals, commission dashboards, seller product management, admin tools, KYC flows, analytics vendors actually use. As a Marketplace UI/UX Designer, I focus on: Vendor onboarding & time-to-first-transaction Two-sided design systems (vendor + buyer + admin) Buyer search, discovery & trust UX Commission, payouts & checkout flows Marketplace SEO & landing page conversion Cold-start & liquidity UX patterns Booking, rental & subscription marketplace flows AI-powered features (search, matching, pricing) — when they earn it What you get: Developer-ready Figma files (structured, named, scalable) Full design systems for all sides — vendor, buyer, admin Interactive prototypes with complete two-sided flows UX decisions grounded in liquidity logic, not assumptions Production-ready code through my dev team Tools: Figma · FigJam · Webflow · React · Next.js · Node.js · Sharetribe · Shopify Plus · Stripe Connect · Algolia Industries: B2B Marketplaces · Service Marketplaces · Multi-Vendor eCommerce · Fintech · Web3 · AI · SaaS Let's scale your marketplace — click "Hire" to turn your two-sided idea into a platform vendors and buyers actually use.

I help AI teams and researchers ensure their outputs are accurate, well-attributed, and trustworthy. With 10+ years of freelancing experience and a 100% Job Success Score, I specialize in: • Fact-Checking: Auditing AI-generated reports for factual accuracy, hallucinations, unsupported claims, and source quality. • Prompt & Context Engineering: Improving agentic performance through structured prompt design and iterative testing. • Regression & Model Testing: Validating new prompts and model versions using LangChain to verify measurable improvement. • Rubric Creation : Building evaluation frameworks that improve model accuracy and consistency. • Label Design: Creating new labels based on available data to improve model performance.