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Rejith L.
$30/hr
100% Job Success
$100K+ earned
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✅ Rewarded as 🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 🏆 by Upwork (𝗧𝗼𝗽 𝟏%) ✅ 8555+ hours and still counting ✅ 86+ jobs completed successfully ✅ 100% Job Success (Client Satisfaction Ratio) ✅ High-Quality Work ✅ Budget-friendly ✅ Fluent English ✅ Flexible Availability (EDT/GMT/AEST) Dear Client, I am a Python-focused AI/ML Engineer with over 10 years of experience developing scalable backend applications, AI-powered platforms, and cloud-integrated solutions using Python, Django, Flask, and FastAPI. I have worked on more than 60 Django /Flask / FastAPI websites and web applications which include Enterprise level applications , eCommerce websites, Mobile websites, Healthcare websites along with JavaScript frameworks like AngularJS, ReactJS and Vue.Js. My experience also includes designing REST APIs, building data processing pipelines, deploying AI models, and developing production-grade web applications across AWS and Azure environments. I'm in the Top 4% overall in StackOverflow. I have created several Python projects for the last 10+ yrs with different libraries. I am a certified Python full stack developer from different institutions. ✅✅✅Core Python✅✅✅ Always used Python latest version along with unittest, PEP standard and KISS and OWASP security followed for coding. Always follow SOLID principles so that all my codes can be understood and extended by any good developer later. Almost all methods are tested by unittest various test cases. Each method cheked by profiling for its better performances. ✅✅✅REST API✅✅✅ All REST API are Open API standard and most of them are with Swagger defined. So they are definitely higest standard in every direction. ✅✅✅Django✅✅✅ I have used mostly Django and Flask framework but also use Tornado async. Django, Django CMS, Django Rest framework, Celery, sentry-sdk, django-extensions, django-rest-framework-jwt, django-rest-swagger, django-simple-history, django-model-utils, django-storage, django-allauth, dubug toolbar etc. ✅✅✅Flask✅✅✅ Flask, gunicorn, flask debug toolbar, pytest, sqlalchemy, marshmallow, psycopg2, celery, redis, wtf, flask-login, flask-limiter and many more. ✅✅✅Databases✅✅✅ I am expertise with different databases like PgSql, Mysql, Mariadb, Mongodb, nosql etc. ✅✅✅Cloud✅✅✅ I have working to create micro services application in different cloud platform say AWS, GCP and Azure. ✅✅✅AWS✅✅✅ Some of the tools I used in AWS various tools including CodeCommit, CodeBuild, CodeDeploy, CodePipeline, Cli, EC2, S3, EBS, DynamoDB, RDS, Lambda with Boto3, VPC, LightShell, SageMaker, Kinesis, SQS, SNS, AppSync, Beanstack, ECR, ECS, Farget, EKS, SES, ElastiCache, Cloudwatch, IAM, Cognito, ApiGateway, Shield, Sso, Route53, CloudFront, ELB, ALB. ✅✅✅Artificial Intelligence✅✅✅ My work is not limited with general Python and MVC based work. But I am a certified Machine Learning and Deep Learning engineer as well. Used different libraries including Tensorflow, Keras, Numpy, Pandas, Matplotlib, ScikitLearn etc. ✅✅✅Frontend ✅✅✅ Front end I have been using from HTML5 to Javascript, Jquery, Angular Js , React Js and Vue Js for years. ✅✅✅Development environment and process✅✅✅ Always use the highly secure development environment along with Git, Docker and Kubernetes. Experience in entire software development life cycle and decision-making. Skilled at building effective and productive working relationship with clients and team members. Software Product/Tools worked with: Python / Django / Flask / Pyramid, PostgreSQL / MySQL / SQL Server / Oracle, JavaScript, AJAX, jQuery, PHP, Amazon Web Services, Heroku, Google App Engine, Google API, Fedex API, Stripe API, PayPal API, HIPAA Compliance, AngularJS, ReactJS, OpenERP / Odoo, Docker, Redis, Redmine, Celery, RabbitMQ, Twilio API and lots more. I can integrate any API with your existing systems. Looking forward to an interview invitation.
ZymbianZ
Associated with
ZymbianZ
$2M+
earned
Muddasar K.
$20/hr
100% Job Success
Available now
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Senior Python Backend Developer | FastAPI, Django, Flask, Frappe, ERPNext, React, vibe coding, | AI | LLM Integration (LangChain, LangGraph, LangFuse, LiteLLM, OpenAI, Claude, RAG, AI Agents) 7+ Years Building Production Ready Systems & Leading High-Performing Development Teams. As a Senior Software Engineer with 6+ years of hands-on experience, I specialize in delivering scalable, production-ready solutions using Python, FastAPI, Django, Flask, and React. Core Expertise Backend Development: Python (Expert level with 6+ years) Microservices Architecture Web Frameworks: FastAPI, Django, Flask, Frappe Payment Gateways: Stripe, Paypal, Razorpay Distributed Systems: Celery, Redis, RabbitMQ, Microservices, Web sockets, webhooks Databases&Search: PostgreSQL, MySQL, MSSQL, MongoDB, Elasticsearch, DynamoDB Testing & Quality: TDD, Pytest Version Control & PM: Git, GitHub, GitLab, Bitbucket, Jira, Notion, Trello, Clickup Migrations: Alembic, Django Migrations APIs: REST, GraphQL, Third-party API Integrations 3rd party integrations: Google SSO, Azure AD, Microsoft SSO, Stripe, PayPal, Microsoft Teams, Zoom, Slack, LinkedIn, Indeed, Unifonic, Twillio, Whatsapp, Sendgrid, SMTP email server, MS Dynamics 365, Oracle fusion, SAML SSO, OpenAI APIs, Active Directory, Keycloak ERP: ERPNext Frontend Development: React.js (with 2+ years of experience) HTML / CSS / JS / Jquery / Tailwind / Bootstrap / Jinja Templates / Django Templates AI/Machine Learning Integration: Production AI Applications - Chatbots, RAG pipelines, AI agents OpenAI API Integration - GPT models, embeddings, fine-tuning LangChain / LangGraph / Langfuse / LiteLLM - Complex AI workflow orchestration Vector Databases - Qdrant, Pinecone, pgvector for semantic search Prompt Engineering - Optimized AI model interactions Cloud & DevOps: AWS, Google Cloud Platform (GCP) - Cloud infrastructure and deployment Docker, CI/CD Pipelines - Automated testing and deployment Redis, Celery, RabbitMQ - Distributed task processing and caching PostgreSQL, MySQL, MongoDB - Database design and optimization Why Choose Me? Team Leadership - Successfully led Python development teams Production Experience - Deployed applications serving thousands of users AI Integration Specialist - Cutting-edge AI features in real-world applications Quality Focus - TDD approach with comprehensive testing Fast Delivery - Agile methodology with on-time project completion 24/7 Communication - Based in Lahore, Pakistan (flexible with global time zones) Services I Offer Custom Python Web Applications (Django, FastAPI, Flask, Frappe) Custom Frontend (React JS, Django templates, Jinja templates) AI Chatbot Development with OpenAI integration RAG System Implementation for document processing API Development & Integration (REST/GraphQL) Database Design & Optimization Cloud Deployment & DevOps Team Leadership & Code Review Legacy System Modernization Vibe Coding Optimization / Fixing Third party integrations Keywords: Python, Python Developer, FastAPI, FastAPI Developer, Django, Django Developer, Flask, Flask Developer, AI Integration, OpenAI API, LangChain, LangGraph, LangFuse, LiteLLM, Team Lead, Backend Developer, Frappe, ERPNext, RESTful API, Microservices, AWS, Machine Learning, Chatbot Development, Database Optimization, Redis, Celery, Production Applications, webhooks, websockets, chat applications, real time communication, rabbitmq, kafka, Docker, Docker Compose, CI/CD, Lambda Functions, Celery, Huey, Background task, backend development, API Developer, Backend Developer, Python, Stripe, Payments, Payment gateway, Payment Integration, SMS, Email, SSO, SAML, SMTP, Python Script, Selenium, Playwright, Scrapping
$60/hr
100% Job Success
$90K+ earned
Offers consultations
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Finding the right developer and technologies for your problem is time extensive, can be exhausting and might not lead to the results you expect. My dashboards, data-driven web applications and custom agents/RAGs helped my clients gain confidence and improve their decision-making by providing the insights in an intuitive and digestible way. My services include: ✅ Build Agents with Google ADK or LangGraph ✅ Build Automation Workflows ✅Develop Flask applications ✅ Rapid POC and MVP development with short feedback cycles ✅ Data Analysis and visualisation with Plotly/Dash With me, you will: ★ You won't worry about technologies and development quality ★ Have confidence in your solution ★ Stop being stuck and start designing solutions ★ Increase the efficiency of the development and your work with data What previous clients say about me: “...He was punctual, provided solid and reliable work and integrated well with our team. He is able to work down in the weeds and also think at a high level to guide the project to a successfull completion, even when requirements are initially uncertain.” "Fantastic work in a short time frame. They were excellent at communicating and understanding the requirements. All in all - able to get some non-trivial work done to a high standard." My services include, but are not limited to, the following: My main tech stack: ☑️ Python ☑️ Google ADK ☑️ LangChain & LangGraph ☑️ Dash. Plotly & Flask ☑️ OpenAI ☑️ PostgreSQL, MySQL ☑️ CI/CD: Docker, Git ☑️ Nginx ☑️ HTML, CSS and Bootstrap As a result of our cooperation, we will transform your ideas into solutions that will improve your business further. I will walk you through all the details of research, development and release during the whole process. Sound like a fit? 🟢 Send a message with button in the top right-hand corner 💬 Let me know the first details of your problem 📞 And talk in a quick call if and how I can help you
Associated with
Pure Inference OU
$80K+
earned
$30/hr
100% Job Success
$20K+ earned
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Versatile Data Scientist, SQL & Python Developer, Flask Enthusiast, and Web Developer As a seasoned Data Scientist and Analyst, I specialize in developing advanced predictive models and analytical solutions that enable organizations to make data-driven decisions. My expertise encompasses the analysis of vast datasets and the creation of algorithms for efficient data processing and automation. In machine learning, I have successfully implemented various techniques, such as regression, classification, clustering, and neural networks. These methods have been tailored for applications including recommendation systems, fraud detection, customer segmentation, and sentiment analysis. My database proficiency is extensive, with strong command over both SQL and NoSQL databases. I have worked with MySQL and MongoDB, designing and implementing robust database architectures capable of handling large data volumes for optimal retrieval. Additionally, I excel in Python and Flask, utilizing these technologies to develop robust, scalable code. With Flask, I create seamless, user-friendly web applications that bring the power of data analysis to life. Beyond data science, I am skilled in HTML, CSS, and JavaScript web development, allowing me to create interactive and visually appealing web applications. My problem-solving abilities and creative thinking are at the core of my approach, enabling me to tackle complex challenges effectively. Collaboration is a key strength, and I thrive in team environments, effectively communicating complex technical concepts to non-technical stakeholders. I am passionate about leveraging my skills and experience to create bespoke, value-driven data solutions that elevate organizations and delight customers. Let's transform your data into actionable insights, with the added capabilities of Python, Flask, HTML, CSS, and JavaScript to bring your solutions to life!
Kajal K. has worked .
Abdul wahab T.
$15/hr
100% Job Success
$3K+ earned
Available now
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I build production-ready SaaS web apps using React/Next.js, Node.js, and Python (Django/Flask). Expect clean UI, secure APIs, and fast delivery for MVPs, dashboards, and integrations. If you’re a founder or team shipping a product, I help you move fast without breaking things: stable architecture, predictable delivery, and thoughtful implementation that supports real growth. 𝐖𝐡𝐚𝐭 𝐈 𝐛𝐮𝐢𝐥𝐝 (𝐚𝐧𝐝 𝐢𝐦𝐩𝐫𝐨𝐯𝐞) • SaaS platforms: multi-role dashboards, admin panels, onboarding, internal tools • Full-stack web apps: React/Next.js frontends + Node/Python backends • APIs & integrations: REST/GraphQL, third-party APIs, webhooks, automation • Auth + roles/permissions: secure access control for teams and customers • Realtime features (when needed): Supabase realtime, notifications, activity feeds • Performance & cleanup: refactors, bug fixing, speed improvements, best practices 𝐌𝐲 𝐜𝐨𝐫𝐞 𝐬𝐭𝐚𝐜𝐤 Frontend: React, Next.js, JavaScript/TypeScript, Tailwind Backend: Node.js (Express/Nest) + Python (Django / FastAPI / Flask) Databases: PostgreSQL, MySQL, MongoDB, Cosmos DB, BigQuery, Supabase (auth + db + realtime) Deploy & Cloud: GCP, Vercel, Heroku, Hostinger, CI/CD with GitHub Actions 𝐇𝐨𝐰 𝐈 𝐰𝐨𝐫𝐤 • Quick audit + clear plan (priorities, risks, timeline) • Small, testable releases (so progress is always visible) • Clean handoff (readable code, structure, brief implementation notes) 𝐖𝐡𝐚𝐭 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐞𝐱𝐩𝐞𝐜𝐭 • Clear communication and ownership • Practical decisions (no over-engineering) • Production mindset: security, stability, and performance If you share your goals + existing repo (or requirements), I’ll reply with a clear approach and the fastest path to shipping.
$20/hr
96% Job Success
$70K+ earned
Available now
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Hi! I'm an expert backend developer. Python, Django, Flask, FastAPI, Node.js are my key skills. The work I care about is the stuff under the surface: APIs, databases, real-time systems, and lately, the infrastructure holding AI products together. Most of my backend work has been in FinTech and SaaS: insurance management, custom accounting software, behavioral finance. These tend to be the projects where the backend actually matters: real-time data, concurrent users, and zero tolerance for downtime. I've also worked across health, EdTech, and real estate. 𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿: • Custom Python/Node solutions • API development and Integration • AI/ML Model Development (Supervised & Unsupervised Learning) • Natural Language Processing (NLP) and Computer Vision • AI-Powered Chatbots and Voice Agents • AI Automation and AI Agents • Data Analysis and Predictive Analytics • MLOps and Model Deployment using Docker, Kubernetes, or Cloud Platforms (AWS, GCP, Azure) 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: • 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀: Python · Django · FastAPI · Flask · Node.js · Express.js · REST APIs · GraphQL · WebSockets • 𝗔𝗜/𝗠𝗟 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: TensorFlow · PyTorch · Keras · Scikit-learn · Computer Vision · NLP • 𝗗𝗮𝘁𝗮 𝗛𝗮𝗻𝗱𝗹𝗶𝗻𝗴: Pandas, NumPy, Spark • 𝗔𝗣𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: FastAPI, Flask, Django REST Framework • 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL · MySQL · MongoDB · Redis · Supabase · SQLite • 𝗖𝗹𝗼𝘂𝗱 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: AWS SageMaker, Azure ML, GCP AI Platform • 𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁: Docker, Kubernetes, CI/CD Pipelines • Frontend (when needed): React · Angular · TypeScript 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲? • Proven track record of delivering AI/ML solutions that drive business growth • Strong problem-solving skills with a focus on data-driven decision-making • Expertise in building AI-powered chatbots, voice agents, and AI automation • Collaborative and results-oriented approach for building custom backends. • Effective communication and timely project delivery Feel free to reach out to discuss how I can add value to your project.
SoftRadix Technologies Pvt. Ltd - AI, SaaS & Business Applications
Associated with
SoftRadix Technologies Pvt. Ltd - AI, SaaS & Business Applications
$1M+
earned
Hai P.
$60/hr
100% Job Success
$100K+ earned
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This experienced software developer has been working for 10 years and specializes in Python and PHP programming languages. With a strong passion for coding and a desire to continually develop their skills, they are now looking for a part-time job opportunity. Their knowledge and experience in software development include building web applications, designing and implementing databases, debugging code, and creating automated testing scripts. They are highly motivated, detail-oriented, and a quick learner. In addition, their ability to communicate effectively in English enables them to work with global teams and take on new challenges in a diverse and dynamic environment.
Hai P. has worked .
Muhammad T.
$25/hr
100% Job Success
Available now
Offers consultations
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I am an experienced Data Scientist offering comprehensive services on Upwork. My expertise lies in various areas including machine learning, full stack web development, exploratory data analysis (EDA), Spark, MongoDB, Python, Kafka, Flask , Data Mining , Data Scraping ,Web Scraping and MySQL. I am well-prepared to handle a wide range of data-related tasks.
Shoaib I.
$20/hr
100% Job Success
Available now
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Full Stack Developer specializing in scalable SaaS platforms, lean MVPs, and AI-powered web and mobile applications. Using a modern technology stack that includes React, Next.js, Node.js, Python, and PHP (Laravel), I handle everything from robust backend architecture to cloud deployment, ensuring your product is optimized, secure, scalable, and ready for market adoption. I work with startups, founders, and growing businesses to turn ideas into production-ready software, whether you're launching a new MVP, scaling an existing SaaS platform, or adding AI capabilities to your current product. 🎯 WHAT I OFFER - 💻 Full Stack Development Build complete applications from the ground up, including frontend, backend, database, and deployment, using React, Next.js, Node.js, Python, and PHP (Laravel). I handle the entire software development lifecycle, ensuring clean architecture, scalable code, and a product that's secure and ready for real users from day one. - 🚀 SaaS Development Design and develop scalable, multi-tenant SaaS platforms with secure authentication, role-based access control (RBAC), subscription billing, analytics dashboards, and cloud-ready architecture built for growth and long-term maintainability. - 🧩 MVP Development Build fast, lean, and market-ready MVPs to validate your idea, attract early users, and secure funding. I focus on core features, rapid development cycles, and scalable foundations so your MVP can easily evolve into a full product without costly rebuilds. - 🤖 AI Integrations Integrate OpenAI, Claude, and Gemini APIs to add intelligent features like AI chatbots, content generation, data analysis, document processing, and AI-driven decision-making into your web or mobile application. - 💻 Web Application Development Build dashboards, admin panels, e-commerce platforms, and internal business tools with responsive frontends, robust APIs, and scalable backend systems tailored to your workflows. - 📱 Mobile App Development Develop cross-platform iOS and Android applications using React Native and Expo with smooth UI/UX, seamless API integration, push notifications, and scalable architecture. - 🎨 Frontend Development Create responsive, high-performance user interfaces with React, Next.js, and TypeScript, featuring seamless state management, fast load times, and optimal user experience across all devices. - 🔌 Backend & API Development Build scalable RESTful APIs, microservices, secure authentication systems, and third-party integrations using Node.js, Laravel, and Python frameworks like Flask, FastAPI, and Django. - 💳 Payment Integrations IImplement secure payment processing systems with Stripe, PayPal, Paddle, and other payment gateways, including subscription management, checkout flows, invoicing, and payment webhooks. 🛠️ TECHNICAL EXPERTISE 🎨 Frontend Next.js, React.js, Vue.js, React Native, Expo, TypeScript, Tailwind CSS ⚙️ Backend Node.js, Python (Flask / FastAPI / Django), PHP (Laravel) 🗄️ Database MySQL, PostgreSQL, MongoDB, Firebase, Supabase, Redis 🤖 AI Integrations OpenAI (GPT, Assistants), Claude, Gemini, RAG Systems 💳 Payments Stripe, PayPal, Paddle, Subscription Management ☁️ Cloud & DevOps AWS, Vercel, Render, Docker, CI/CD, Git/GitHub 🔹 My Development Process 1️⃣ Discovery Call → 💬 Understand your vision and requirements 2️⃣ Project Planning → 📅 Define scope, timelines, and milestones 3️⃣ Design & Development → 🎨 Regular updates and live previews 4️⃣ Testing & Launch → ✅ QA testing and smooth deployment 5️⃣ Ongoing Support → 🔄 30 days of free maintenance included 🚀 Ready to launch your product? Let's hop on a brief introductory chat to look over your requirements and lay out the fastest, most secure path to production. 🔍 Keywords: Full Stack Developer, SaaS Developer, MVP Development, AI Integration, AI App Development, React Developer, Next.js Developer, Node.js Developer, Python Developer, Laravel Developer, React Native Developer, Web Application Development, API Integration, Multi-Tenant SaaS, OpenAI API, LangChain, RAG.
Vasyl B.
$50/hr
100% Job Success
$30K+ earned
Offers consultations
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My initial review: "Highly skilled, friendly developer..." Hey! I am a web developer with a focus on creating Django/Flask web applications. Also, I can craft a desktop app with a simple but functional UI (.exe). On a front-end of my web apps I use JavaScript, Bootstrap, Jinja templates, and Ajax. I like to utilize DataTable.js and Charts.js. With such tools web apps looks really cool;) Very often I make some reporting features to my web apps – Excel, PDF, CSV reports. Storage: SQL relational databases, AWS S3. Version control: git. AWS Cognito (user management from AWS) integration. Additionally, I've conducted shell-based Linux administration (using Putty), navigated services on Amazon Web Services (AWS) Cloud platform and worked with RESTful API. I like to work on MPVs bringing to life ideas and concepts. You are also welcome to contact me regarding integrations with Segment, JTL Wawi, Gmail, or Google reCAPTCHA,