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Clinton D.
$30/hr
100% Job Success
$4K+ earned
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I’m Clinton, a Data Scientist with 8+ years of hands-on experience in data engineering, analytics, and automation. My focus is on creating reproducible, scalable, and impactful data solutions, from interactive dashboards to automated pipelines and predictive models. 💡 Core Expertise 🗺 Spatial & Geospatial Analytics - Advanced spatial workflows using R, Python, and Google Earth Engine - Poverty and vulnerability mapping using small area estimation and related methods - Disaster risk and impact modeling, including flood, drought, and displacement analytics - End-to-end geospatial data engineering, from data extraction and transformation to automated spatial pipelines and managing geospatial databases with PostgreSQL/PostGIS, and DuckD - Handling diverse geospatial data formats: GeoTIFF, shapefiles, GeoJSON, and satellite imagery - High-quality cartographic visualization and interactive mapping with R (leaflet, ggplot2), Python (geopandas, folium), Google Earth Engine Apps, and Shiny dashboards 📊 Data Visualization & Dashboards - Expert in R Shiny, Power BI, and Looker Studio — building interactive, data-driven dashboards that translate complex insights into compelling visuals - Specialized in high-performance Shiny apps, leveraging asynchronous programming (callr, future, mirai) and reactive optimization for smooth, scalable user experiences - Strong grasp of UI/UX design principles — crafting dashboards that are intuitive, visually engaging, and tailored to end-user needs - Custom branding and theming to align dashboards seamlessly with client identity and design guidelines - Skilled in advanced data visualization using ggplot2, plotly, and leaflet, combining aesthetic storytelling with analytical rigor - Integration of geospatial layers (maps, raster tiles, and dynamic spatial filters) into dashboards for location-aware insights - End-to-end dashboard automation and deployment, including: Continuous integration with GitHub Actions, Docker, and webhooks - Secure hosting via Shiny Server, ShinyProxy, or cloud-based containers - Expertise in data pipeline integration, connecting dashboards directly to live databases (PostgreSQL, DuckDB, APIs) for automated updates and reproducibility - Full dashboard deployment on Shiny Server / ShinyProxy deployment, and CI/CD integration ⚙️ Data Engineering & Automation - End-to-end pipelines using R, Python, and Bash scripting - CI/CD with GitHub Actions, Docker, and webhooks - Async workflows with callr, future, and promises - Databases: PostgreSQL, MySQL, SQLite, and DuckDB 🤖 Machine Learning & MLOps - Predictive modeling with xgboost, caret, scikit-learn, and TensorFlow - Reproducible model management - Automated retraining and REST API integration 🌍 Trusted by Global Organizations I’ve supported data-driven decision-making for organizations such as UNICEF, FCDO, IFAD, CGIAR, and the Green Climate Fund, delivering projects spanning poverty mapping, forest monitoring, displacement analysis, and renewable energy modeling. 🤝 Why Work With Me 1. I listen first: to understand your goals and challenges clearly. 2. I collaborate transparently, providing regular updates and clear timelines. 3. I deliver reliably: production-ready, efficient, and well-documented work.
Clinton D. has worked .
Hwei Geok N.
$150/hr
100% Job Success
Available now
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I'm an Upwork Expert-Vetted Data Scientist who covers what usually takes two specialists: classic ML and modern LLM systems, shipped to production. Nobody understands your business like you do, and you know exactly the bottleneck you want gone. You want someone who can see it just as clearly, bring it to life the way you imagined, and build it to last. That has been my track record. Imagine handing off your idea, and what comes back makes you say, "This is exactly what I had in mind!" That is the feedback I hear most from my clients. Here's what working together looks like: You explain the vision once. I turn it into a clear plan, build the system end-to-end, and ship something your team can actually run and trust. Whether it's an LLM or RAG application, an AI agent, or a forecasting or anomaly-detection engine, it is handed over to you already deployed in production, documented, and yours to keep building on. What my clients say: → "She took our vision as her own and brought it to life." → "When she says she'll handle something, it's done." → "Hwei is the proverbial needle in a haystack. She gets it. She gets it done." Recent projects: • A US women's health startup: I led the AI intelligence layer at the core of their v1.0, live before their funding raise. • A Fortune 500 consumer brand: I built a stability testing platform that turned days of manual work into seconds. • An Italian telecom compliance consultancy: I built an LLM document-processing pipeline that cut review time from days to minutes, with zero false approvals. • A Dutch water consortium: I built an anomaly-detection dashboard that flagged genuine contamination events with zero false alarms. → Expert-Vetted · Top 1% on Upwork · 100% Job Success → ML and AI since 2018 · 8 published papers · trained at Fraunhofer SCAI and the University of Hamburg Tell me what you're trying to build, and I'll reply with a clear path forward, built around your goals. ================== Tools and capabilities: • Generative AI and LLMs: large language models, RAG (Retrieval Augmented Generation), AI agents and multi-agent systems, chatbots, prompt engineering, LLM evaluation, vector databases (ChromaDB), LangChain, Pydantic AI • Machine learning: predictive modeling, anomaly detection, time series forecasting, predictive maintenance, statistical analysis, deep learning, computer vision, natural language processing (NLP) • Engineering and delivery: Python, FastAPI, Docker, cloud deployment (AWS, Azure, Render), data analysis, data pipelines, interactive dashboards (R Shiny, Streamlit, Gradio), data visualization • Model APIs: OpenAI, Anthropic Claude, Google Gemini, Hugging Face • Consulting: artificial intelligence (AI) strategy, AI implementation, AI consulting, code audits, knowledge transfer
Hwei Geok N. has worked .
Waleed Bin K.
$25/hr
$1K+ earned
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I am a Robotics and AI Engineer with an MS in Robotics from Georgia Tech (4.0 GPA) and a BS in Electrical Engineering from Habib University, with minors in Physics and Mathematics. My background spans robotics research, production software development, machine learning, AI agents, and over a decade of teaching and mentoring students across Pakistan, the UK, and Saudi Arabia. On the research side, I have co-authored four papers across IEEE conferences and international journals, with ongoing work under review at IROS 2026. On the industry side, I have shipped production software, built AI automation agents, and delivered commissioned writing for professional clients. On the academic side, I have taught and mentored students across all levels — from O and A Levels through to undergraduate and graduate programs. Here is what I can help you with: • AI agents and automation pipelines using OpenAI API, CrewAI, Selenium, and web scraping • Web development with Flask, REST APIs, PostgreSQL, and AWS deployment • Machine learning and computer vision using PyTorch, TensorFlow, and OpenCV • Robotics simulation and development with ROS2, MuJoCo, Gazebo, and PyBullet. My academic qualification and current occupation is in Robotics too. • LaTeX typesetting for research papers, theses, CVs, and technical reports • STEM tutoring in Math, Physics, and Python from O/A Levels up to graduate level • Technical and business writing including thought leadership reports, blogs, and articles If you have a technical problem that needs someone who understands both the theory and the implementation — let's talk.
Waleed M.
$40/hr
100% Job Success
$10K+ earned
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Are you seeking to transform your raw data into actionable insights? Look no further! I specialize in crafting comprehensive data solutions tailored to your unique business needs. With a keen eye for detail and years of experience, I excel in: 📊 𝗗𝗮𝘁𝗮 𝗩𝗶𝘀𝘂𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻𝘀: Transforming complex datasets into intuitive visual representations that drive understanding and decision-making. 📈 𝗗𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀 & 𝗖𝗥𝗠𝘀: Building dynamic dashboards and custom CRM solutions that empower you to monitor performance, track KPIs, and optimize workflows seamlessly. 💻 𝗦𝗮𝗮𝗦 𝗔𝗽𝗽𝘀 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Seamlessly integrating data solutions with SaaS applications to enhance productivity and streamline operations. My goal is to empower your business with data-driven strategies that foster growth and innovation. Let's collaborate to unlock the full potential of your data! My skillset: ✅ 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: - React.js, Next.js, Svelte - HTML5, CSS3, SASS/SCSS, JavaScript ES6+ - jQuery, Bootstrap, Tailwind CSS, Material UI, Ant Design, - WebGL, Three.js, Phaser.js ✅ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: - Flask, Django, FastAPI - Ruby on Rails, Laravel - Express.js, Nest.js - Plotly Dash, Streamlit, - Anvil, Panel, Observable ✅ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: - MySQL, PostgreSQL, SQLite - MongoDB, MariaDB, DynamoDB - Redis, Firebase, Supabase, Elasticsearch - Neo4j, Apache Cassandra, InfluxDB - GraphQL ✅ 𝗖𝗹𝗼𝘂𝗱 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 𝗮𝗻𝗱 𝗗𝗲𝘃𝗢𝗽𝘀: - AWS, Azure, Google Cloud Platform - Heroku, Digital Ocean - Docker, Kubernetes, Jenkins - Terraform, Ansible, AWS CloudFormation - GitHub Actions, GitLab CI/CD, CircleCI, Travis CI ✅ 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝗰𝗲 𝗮𝗻𝗱 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: - PowerBI, Tableau, Google Data Studio - Sisense, QlikView, QlikSense, Splunk - Looker Studio, Grafana, Kibana, Prometheus - Apache Superset, Metabase, Redash ✅ 𝗟𝗼𝘄-𝗰𝗼𝗱𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: - PowerApps, Google Apps Script, Retool - Airtable, Zoho Creator, Bubble.io - Microsoft Power Automate, OutSystems - Mendix, Appian, Appsmith - Salesforce Lightning, Hubspot, Zendesk ✅ 𝗖𝗵𝗮𝗿𝘁𝗶𝗻𝗴 𝗮𝗻𝗱 𝗚𝗿𝗮𝗽𝗵𝗶𝗻𝗴 𝗟𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀: - Plotly, Chart.js, Highcharts - Google Charts, D3.js, Vega-Lite - Matplotlib, Seaborn, Bokeh - ApexCharts, AnyChart - Apache ECharts ✅ 𝗚𝗲𝗼𝘀𝗽𝗮𝘁𝗶𝗮𝗹 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: - Google Earth Pro, ArcGIS, QGIS - Mapbox, Google Maps API, Leaflet, Openlayers - Deck.gl, CesiumJS, Turf.js, Geoserver, PostGIS, CARTO
Waleed M. has worked .
Abhin S.
$35/hr
100% Job Success
$300K+ earned
Available now
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I build the mobile apps that can't fail: official Amazon Location Android SDKs, ONWARD Medical's ARC-EX (a first-of-its-kind FDA-cleared spinal cord stimulator), and Fibe, a fintech lending app with 10M+ downloads. I'm usually hired when a project involves more than standard app screens: real-time systems, BLE/IoT, AI, payments, hardware integrations, maps, regulated workflows, or complex architecture that needs senior ownership. 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ▪ Android: Kotlin, Java, Jetpack Compose, MVVM, Clean Architecture ▪ iOS: Swift, SwiftUI, native SDKs, platform channels ▪ Cross-platform: Flutter and Kotlin Multiplatform (KMM) ▪ BLE, IoT & hardware: medical devices, robotics, wearables, connected products ▪ Real-time: WebRTC, Socket Programming, Twilio, video, low-latency chat ▪ Maps & location: geofencing, live tracking, routing, custom SDKs ▪ Fintech & payments: wallets, KYC, subscriptions, payment gateways ▪ AI features: streaming chat, character memory, LLM integrations, on-device ML ▪ App rescue: refactoring, crash fixing, performance tuning, architecture cleanup 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞 ① The app needs to scale: millions of users, peak traffic, complex state, performance-sensitive flows. ② The app cannot fail: medical, fintech, real-time, hardware, or business-critical workflows where reliability is non-negotiable. ③ The app is technically difficult: BLE devices, AI, native SDKs, WebRTC, payments, maps, or legacy code that needs expert handling. ④ The product needs senior ownership: architecture, technical decisions, tradeoffs, code quality, and delivery without heavy supervision. 𝐇𝐨𝐰 𝐈 𝐖𝐨𝐫𝐤 ▪ I clarify the product goal, technical risks, and success criteria before writing code ▪ I break work into clear milestones, so progress is visible ▪ I share frequent updates and demo videos for major features ▪ I communicate tradeoffs directly instead of hiding problems ▪ I write production-grade code: clean architecture, reliable state management, testing, CI/CD readiness, maintainable structure With 10+ years and 25+ shipped apps (three with 1M+ users), I've worked across fintech, healthcare, AI, robotics, BLE/IoT, real-time communication, and developer SDKs, including public contributions to Amazon Location Service under the AWS Geospatial organization. If your mobile app is complex, high-value, scaling fast, connected to hardware, using AI, handling payments, or relying on real-time data, send me your goal, current stage, and biggest technical concern. I'll respond with a clear plan, a realistic timeline, and the safest way to move forward.
Abhin S. has worked .
JustCode Software Development PVT. LTD.
Associated with
JustCode Software Development PVT. LTD.
$200K+
earned
Ali A.
$40/hr
100% Job Success
$100K+ earned
Available now
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Senior Full Stack & AI Engineer - Ex American Airlines and Ericson Canada Senior Software Engineer. I've spent 10+ years shipping Full Stack AI Solutions to production. At American Airlines, I worked on the booking platform that moves millions of travelers across the US. At SolarWinds and Ericsson Canada, I built infrastructure and data pipelines at enterprise scale. Since then I've taken that same discipline into startups and product companies and building from zero, taking over broken codebases, and shipping things that stay shipped. Production work I own today: a programmatic ad exchange with real-time bidding and Stripe Connect payouts, an AI voice agent on OpenAI Realtime hitting sub-35ms response handling live business calls with no human in the loop, a HIPAA-compliant healthcare platform with HL7 and FHIR integration, a real-time geospatial mobile app, and a fintech SaaS processing real transactions. All live. All mine to maintain. Here is what I bring to your project: Full stack engineering: React, Next.js 14/15, Node.js, NestJS, TypeScript, PostgreSQL, MongoDB, Prisma, Supabase, Redis, REST APIs, GraphQL. I have owned monorepos end to end, not just the frontend, not just the deploy pipeline, the whole thing. I can debug a React rendering bug in the morning and reason through a Postgres migration in the afternoon. AI and automation: OpenAI API, Anthropic Claude, LangChain, RAG pipelines with vector retrieval and re-ranking, autonomous agents, multimodal systems, n8n workflow automation, Twilio voice and SMS. I build AI systems that run in production under real load, not just in a notebook. Claude Code and Cursor are open on my machine every day — I use them to move faster, not to ship code I don't understand. Payments and billing: Stripe Connect, subscription billing, metered billing, trial-to-live transitions, webhook idempotency, failed payment recovery, multi-party payouts, proration logic. I have rebuilt broken billing systems mid-flight with active subscribers. This work touches real money and I treat it that way. Backend infrastructure: NestJS microservices, AWS EC2, S3, RDS, Lambda, CloudFront, IAM, Docker, Railway, Vercel, CI/CD pipelines. I have run zero-downtime database migrations on live systems using expand/contract patterns with staged rollbacks not maintenance windows. I work directly with founders, CTOs, and product leads. No agency, no middlemen, no hand-holding required. I read your codebase, understand the architecture, and start contributing in days. I make pragmatic decisions, flag risks early, and own my work until it is stable in production. If you are looking for someone to take a task and disappear I am not that. If you need a senior engineer who thinks about the whole system and shows up when it matters that is exactly what I do. Toronto-based. EST. Available full-time or part-time.
Ali A. has worked .
Dev Inception
Associated with
Dev Inception
$8K+
earned
Galal M.
$50/hr
100% Job Success
$200K+ earned
Offers consultations
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I am a highly experienced full-stack web developer with over 15 years of professional experience in building scalable, high-performance web applications. I specialize in large enterprise applications, including ERP, SaaS, and GIS solutions, leveraging both open-source and commercial technologies. Core Competencies: Full-stack web development: Front-end and Back-end expertise Designing and implementing highly scalable and maintainable web applications GIS application development using open-source libraries and enterprise solutions Technical Expertise: Back-End: PHP (Laravel, CakePHP) Python (Django) Node.js (Express.js) PostgreSQL/PostGIS, MySQL Front-End: React.js CesiumJS OpenLayers, Leaflet, Mapbox GL GIS & Mapping: GeoServer, ArcGIS Server, ESRI tools GDAL/OGR JOSM, iD Editor imposm3, osm2pgsql, Mapnik Experience with large-scale spatial data processing and visualization Highlights: Extensive experience in enterprise-scale GIS and web applications Skilled in integrating spatial data with web applications for interactive mapping solutions Proven track record of delivering ERP and SaaS platforms
$49/hr
$300+ earned
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I build and ship full-stack web applications fast: from idea to production. Specializing in React, Next.js, APIs, and automation for MVPs and real products. Recent work includes designing, building, and launching full applications end-to-end, including UI/UX, backend APIs, payment automation (Stripe), integrations, and deployment. What I do best: • Build full-stack web apps using React, Next.js, Node.js, and .NET • Design and implement REST APIs and third-party integrations • Create MVPs and internal tools quickly using automation (n8n, webhooks) • Handle projects end-to-end: architecture, development, deployment I focus on clean code, clear communication, and delivering working software, not just prototypes. If you need someone who can take ownership and move fast, I can help.
Maksim D.
$60/hr
100% Job Success
$100K+ earned
Offers consultations
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With 13 years building web products end-to-end and engineering experience from Revolut and DoorDash, I provide the strategic oversight of a CTO with the AI powered execution speed I've led projects across AI-first platforms, data-heavy dashboards, workflow builders, GIS and routing tools, tourism products, and internal productivity systems, taking each from early concept through to a live, user-ready product. 📦 Product Implementation and Delivery • Clean backend, data and API design • Simple, intuitive UX your users get immediately • AI Strategy & LLM Integration: production-ready AI automating business processes. • Fast launches without sacrificing architecture, security, or scalability • Day-one integrations (auth, email, analytics) 🧠 Strategic Partnership & Technical Governance • Product scope, what to build now vs. later • Technical roadmap aligned to your business milestones • Stack definition that won't become a liability in 6 months • Due Diligence Readiness: Investor-ready technical documentation and a clear tech story • Full handoff with documentation your next hire can build on 🗂️ Projects I've led end-to-end • AI-powered apps and LLM integrations • Data-heavy dashboards and analytics platforms • Workflow builders and internal tools • GIS, geospatial, and routing products • Tourism and booking platforms • Productivity tools 🛠️ Tech stack • Frontend: React, Next.js, TypeScript • Mobile: React Native • Backend: Node/NestJs, Python/FastAPI • DB: PostgreSQL, MongoDB • Infra: Supabase, Vercel, Render, AWS, Google Cloud • Auth: Clerk, Supabase Auth, NextAuth • Emails: Resend, Mailgun • Analytics: PostHog, Mixpanel • LLM API integrations: OpenAI, Gemini, Anthropic • Geo/GIS: Maptiler (API, Engine), Google maps API, Mapbox, Leaflet • Integrations: Geo APIs, Telegram Mini Apps Comfortable with MERN, T3 stacks If you need to translate business needs into product outcomes quickly, deliver fast, and provide actionable product insights, let's chat
Maksim D. has worked .
Syed M.
$20/hr
100% Job Success
$80K+ earned
Offers consultations
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🏆 Top-Rated PLUS Full Stack Developer | 100% Job success | 10+ Years Experience | AWS Expert | ⭐⭐⭐⭐⭐ 50+ Reviews | 50+ Digital Solutions Delivered | SaaS & B2B Platforms 🎯 My focus is simple: understand your goals and challenges, then deliver software that drives results. I don’t just code with the latest technologies — I build scalable, secure, and user-friendly solutions that solve real business problems. 🚀 I work independently as a senior full-stack developer, but when projects need design, QA, or rapid scaling, I collaborate with a trusted network of professionals to deliver complete end-to-end solutions — from concept to deployment. 🌍 Wherever you are, I adapt to your workflow and time zone for seamless delivery. 💻 Tech Stack & Expertise: Back-End: Node.js, PHP (Laravel), Python (Django), C# Front-End: React.js, Next.js, Angular, JavaScript, TypeScript, jQuery, HTML5, CSS3, Bootstrap, Webflow, Bubble.io, PWA Databases: MySQL, SQL Server, MongoDB, Firebase/Firestore, DynamoDB Cloud & DevOps: AWS (EC2, Lightsail, S3, Lambda, API Gateway, RDS, Cognito, SES, SNS, SQS, Route53, CloudFormation, Pinpoint), Google Cloud, Azure, Docker, CI/CD APIs & Integrations: Facebook, Google, Apple, Twitter, eBay, Microsoft APIs Payments: Stripe, PayPal, Apple Pay, 2Checkout, Checkbook AI & ML: OpenAI API, Gemini AI, model fine-tuning, training, ML integrations Security & Compliance: OWASP, HealthCare FHIR API, HIPAA, HiTrust, SOC2 🤝 You’ll always stay in the loop. Communication is clear, timelines are predictable, and progress is transparent through tools like Slack, Jira, Monday, ClickUp, and Trello. Whether you need a dedicated developer or a team, I deliver solutions that fit your goals — on time, within budget, and without the stress. Best Regards, Syed Minhaj Full-Stack Developer | AWS & Cloud Solutions Expert