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Pakistan
$15/hr
100%
Job Success
$8K+ earned
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I have been working for 8 years, offering a variety of services to help businesses. Here is what I can do for you:
- Backend Development for Web Apps
- API Development and Integration
- Data Science and Machine Learning
- Creating Proof of Concept (POC) and MVP
- Web Automation and Scraping
- Scripting and Automating Tasks
- Developing Bots
- Deployment Services
Industries I Work With:
- Fintech (Financial Technology)
- AI and Machine Learning
- Document Processing
- Lead Generation and Marketing Campaigns
Technologies I Use:
- Main Language: Python
- Web and API Development: Flask, FastAPI, Django
- Real-Time Applications: Django Channels, FastAPI
- Databases: PostgreSQL, MySQL, MongoDB
- Task Management: Celery
- Containerization: Docker
- In-Memory Data: Redis
- Cloud Platforms: AWS, GCP
- Frontend Technologies: HTML/CSS/JS, ReactJS, NextJS
- Frameworks and Libraries: TensorFlow, PyTorch, HuggingFace, Keras, Sklearn, Scipy, Seaborn, Matplotlib, Pandas, Numpy
If you are ready to start your project, get in touch and let’s build something awesome together!
$38/hr
100%
Job Success
$30K+ earned
Available now
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Senior Python backend developer with 10+ years building scalable SaaS platforms, REST APIs, and AI-powered systems in Python, Django, DRF, and FastAPI. I turn product requirements into clean architecture, reliable integrations, and production-ready delivery.
Need someone to own the backend — from database and API design to LLM integrations and deployment? That's my core strength. I focus on backend-heavy web applications where reliability, maintainability, and business logic matter most, and I help teams fix slow, messy, or hard-to-maintain Python/Django codebases by restructuring logic, stabilizing APIs, and cutting technical debt.
I also deliver end-to-end SaaS MVPs — integrations, admin flows, auth, deployment, and collaboration across the full web stack.
𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱:
🟢 SaaS backends and MVPs (Django / DRF, FastAPI)
🟢 REST APIs, webhooks, and third-party integrations
🟢 AI & LLM features — OpenAI, Claude, LangChain, LangGraph, RAG
🟢 Workflow automation and ETL pipelines (Celery, Redis)
🟢 Admin panels, authentication, roles & permissions
🟢 Refactoring & scaling legacy Python / Django systems
🟢 Docker-based deployment, AWS, and CI/CD
𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗵𝗶𝗿𝗲 𝗺𝗲 𝘁𝗼:
🟢 Launch the backend for a new SaaS product
🟢 Stabilize and scale an existing Django application
🟢 Build APIs and integrations that scale reliably
🟢 Automate manual business workflows
🟢 Add AI / LLM functionality to an existing platform
🟢 Get senior-level execution without unnecessary complexity
𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲:
Over 10+ years I've shipped products across SaaS, fintech, healthcare, education, and internal business tools. I build modular, well-structured systems that stay easy to extend as your product grows — especially strong in API-heavy platforms, async workflows, and third-party integrations.
𝗖𝗼𝗿𝗲 𝘀𝘁𝗮𝗰𝗸:
Python · Django · Django REST Framework (DRF) · FastAPI · PostgreSQL · MySQL · Celery · Redis · Docker · AWS · GitLab CI/CD · REST APIs · Webhooks · Stripe · Twilio · OpenAI · Claude · LangChain · LangGraph · React
𝗛𝗼𝘄 𝘄𝗲 𝘀𝘁𝗮𝗿𝘁:
For projects where the scope needs validation, I offer a paid discovery phase — a practical way to align on architecture, priorities, and a delivery plan before a larger engagement. You leave with a clear roadmap, fixed next steps, and no guesswork.
If you need a solid Python/Django backend, clean APIs, AI integrations, and senior-level execution with clear communication, send me a message — I'll reply with honest feedback on your project.
Stanislav R.
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Associated with
Flexipy
$20K+
earned
$145/hr
88%
Job Success
$100K+ earned
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Building a scalable SaaS or enterprise platform requires more than just code. It requires technical ownership, strong architecture, security awareness, and a clear understanding of business logic.
As a Python Developer and CTO-level technical partner, I help startups and businesses build secure, scalable, and production-ready web applications. Whether you are launching an MVP, upgrading an existing platform, integrating AI automation, or fixing technical debt, I can handle the full development lifecycle from planning to deployment.
I specialize in Python, Django, Django REST Framework, React, Next.js, PostgreSQL, API integrations, SaaS architecture, AI automation, and cybersecurity-focused development.
How I Help You Succeed:
— Python & Django Development: Secure, scalable backend systems using Django, Django REST Framework, PostgreSQL, and clean API architecture.
— SaaS & Enterprise Platforms: MVPs, dashboards, subscriptions, multi-role systems, admin panels, analytics, and scalable business logic.
— CTO-Level Technical Ownership: I help with architecture planning, technology decisions, system design, technical audits, and product direction.
— AI Automation & Integration: Practical AI features using GPT/LLMs, automation workflows, chatbots, document processing, and smart business tools.
— Cybersecurity-Focused Development: Secure authentication, role-based access control, API protection, server hardening, vulnerability awareness, and safer deployment practices.
— Modern Frontends: Fast, responsive, and premium user interfaces using React and Next.js.
— DevOps & Deployment: VPS, AWS/GCP, Docker, CI/CD pipelines, Nginx, SSL, monitoring, and production deployment support.
My Promise:
I value clear communication, predictable delivery, and long-term maintainability. You will receive a clear execution plan, regular updates, well-structured code, and a product that is built for real users, not just a development server.
Ready to build, secure, or scale your platform? Send me a message or invite me to your job, and let’s discuss your project goals.
Sharan S.
has worked
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Associated with
BRACKET CODER
$10K+
earned
$30/hr
100%
Job Success
$70K+ earned
Available now
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As a 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 𝐒𝐞𝐧𝐢𝐨𝐫 𝐀𝐈 & 𝐅𝐮𝐥𝐥𝐬𝐭𝐚𝐜𝐤 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐰𝐢𝐭𝐡 𝐚 100% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞 and over 10 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞, I am dedicated to transforming complex challenges into high-impact, production-ready 𝐀𝐈 𝐚𝐧𝐝 𝐰𝐞𝐛 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬.
My expertise spans building advanced AI-powered applications, scalable SaaS platforms, intelligent automation systems, and robust cloud-native architectures that drive efficiency, innovation, and effectively serve millions of users.
𝐌𝐲 𝐂𝐨𝐫𝐞 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧 𝐎𝐟𝐟𝐞𝐫𝐢𝐧𝐠𝐬:
𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐭 𝐀𝐈 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 & 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐯𝐞 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠
I specialize in architecting and developing sophisticated 𝐋𝐋𝐌-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐜𝐡𝐚𝐭𝐛𝐨𝐭𝐬, 𝐑𝐀𝐆 (𝐑𝐞𝐭𝐫𝐢𝐞𝐯𝐚𝐥-𝐀𝐮𝐠𝐦𝐞𝐧𝐭𝐞𝐝 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐨𝐧) 𝐬𝐲𝐬𝐭𝐞𝐦𝐬, 𝐚𝐧𝐝 𝐂𝐨𝐧𝐯𝐞𝐫𝐬𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐀𝐈 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬. My work involves harnessing leading models like OpenAI (GPT-4, GPT-3.5), 𝐀𝐧𝐭𝐡𝐫𝐨𝐩𝐢𝐜 𝐂𝐥𝐚𝐮𝐝𝐞, 𝐇𝐮𝐠𝐠𝐢𝐧𝐠 𝐅𝐚𝐜𝐞, 𝐚𝐧𝐝 𝐂𝐨𝐡𝐞𝐫𝐞 to create intelligent systems.
This extends to building dynamic 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬, 𝐀𝐠𝐞𝐧𝐭𝐢𝐜 𝐀𝐈, and Multi-Agent Systems with frameworks such as 𝐋𝐚𝐧𝐠𝐂𝐡𝐚𝐢𝐧, 𝐋𝐚𝐧𝐠𝐆𝐫𝐚𝐩𝐡, and 𝐋𝐥𝐚𝐦𝐚𝐈𝐧𝐝𝐞𝐱, enabling advanced workflow automation and decision support.
My expertise includes 𝐏𝐫𝐨𝐦𝐩𝐭 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠, 𝐅𝐢𝐧𝐞-𝐓𝐮𝐧𝐢𝐧𝐠, 𝐒𝐞𝐦𝐚𝐧𝐭𝐢𝐜 𝐒𝐞𝐚𝐫𝐜𝐡, 𝐕𝐞𝐜𝐭𝐨𝐫 𝐒𝐞𝐚𝐫𝐜𝐡, 𝐚𝐧𝐝 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐜𝐞 (𝐍𝐋𝐏, 𝐜𝐥𝐚𝐮𝐬𝐞 𝐞𝐱𝐭𝐫𝐚𝐜𝐭𝐢𝐨𝐧) to unlock critical insights and automate complex processes, all supported by an MLOps approach for robust deployment and monitoring.
𝐄𝐧𝐝-𝐭𝐨-𝐄𝐧𝐝 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
I deliver comprehensive, scalable web applications that form the backbone of modern digital products.
My backend development proficiency includes 𝐏𝐲𝐭𝐡𝐨𝐧 (𝐃𝐣𝐚𝐧𝐠𝐨, 𝐅𝐚𝐬𝐭𝐀𝐏𝐈, 𝐅𝐥𝐚𝐬𝐤), crafting high-performance 𝐑𝐄𝐒𝐓 𝐀𝐏𝐈𝐬, 𝐆𝐫𝐚𝐩𝐡𝐐𝐋, 𝐚𝐧𝐝 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞𝐬 designed for scalability and real-time interactions.
On the 𝐟𝐫𝐨𝐧𝐭𝐞𝐧𝐝, I build dynamic user interfaces using 𝐑𝐞𝐚𝐜𝐭, 𝐍𝐞𝐱𝐭.𝐣𝐬, 𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭, 𝐚𝐧𝐝 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭.
For data management, I am skilled in 𝐏𝐨𝐬𝐭𝐠𝐫𝐞𝐒𝐐𝐋, 𝐌𝐲𝐒𝐐𝐋, 𝐌𝐨𝐧𝐠𝐨𝐃𝐁, 𝐑𝐞𝐝𝐢𝐬, 𝐒𝐮𝐩𝐚𝐛𝐚𝐬𝐞, and integrate specialized Vector Databases (Pinecone, Milvus, pgvector, ChromaDB) to power 𝐀𝐈-𝐝𝐫𝐢𝐯𝐞𝐧 features. My focus remains on clean, maintainable codebases and architectures that scale with your business needs.
𝐂𝐥𝐨𝐮𝐝 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 & 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐄𝐱𝐜𝐞𝐥𝐥𝐞𝐧𝐜𝐞
Ensuring the reliability, security, and continuous delivery of your applications is paramount. I design and implement robust cloud solutions across 𝐀𝐖𝐒, 𝐆𝐨𝐨𝐠𝐥𝐞 𝐂𝐥𝐨𝐮𝐝 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 (𝐆𝐂𝐏), and 𝐌𝐢𝐜𝐫𝐨𝐬𝐨𝐟𝐭 𝐀𝐳𝐮𝐫𝐞, leveraging specialized 𝐀𝐈/𝐌𝐋 services like 𝐀𝐖𝐒 𝐁𝐞𝐝𝐫𝐨𝐜𝐤, 𝐀𝐳𝐮𝐫𝐞 𝐎𝐩𝐞𝐧𝐀𝐈 Service, and Google Vertex AI.
My 𝐃𝐞𝐯𝐎𝐩𝐬 and 𝐌𝐋𝐎𝐩𝐬 practices include expert use of 𝐃𝐨𝐜𝐤𝐞𝐫, 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬, 𝐓𝐞𝐫𝐫𝐚𝐟𝐨𝐫𝐦, 𝐀𝐧𝐬𝐢𝐛𝐥𝐞 for infrastructure as code, establishing efficient CI/CD pipelines with 𝐆𝐢𝐭𝐇𝐮𝐛 𝐀𝐜𝐭𝐢𝐨𝐧𝐬, 𝐉𝐞𝐧𝐤𝐢𝐧𝐬, 𝐚𝐧𝐝 𝐂𝐢𝐫𝐜𝐥𝐞𝐂𝐈.
𝐊𝐞𝐲 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐚𝐛𝐥𝐞𝐬 & 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐈𝐦𝐩𝐚𝐜𝐭:
My commitment is to provide tangible value and measurable results for your organization:
- Automated Efficiencies & Cost Reduction: Implementing intelligent AI Agents and platforms that streamline operations and significantly reduce manual effort.
- Scalable & Resilient Digital Products: Crafting full stack SaaS applications and web platforms engineered for high performance, security, and sustained growth.
- Production-Ready AI Ecosystems: Delivering end-to-end AI solutions that are robust, monitored, maintainable, and seamlessly integrated into your business.
If you're seeking a seasoned engineer to transform your complex AI or full stack vision into a high-value, production-ready product with precision and measurable impact, let's connect. I am committed to clean architecture, transparent communication, and delivering exceptional value that aligns with your strategic objectives.
𝙋𝙮𝙩𝙝𝙤𝙣 | 𝘿𝙟𝙖𝙣𝙜𝙤 | 𝘼𝙄 𝙀𝙣𝙜𝙞𝙣𝙚𝙚𝙧 | 𝙈𝙇 𝙀𝙣𝙜𝙞𝙣𝙚𝙚𝙧 | 𝙁𝙪𝙡𝙡𝙨𝙩𝙖𝙘𝙠 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧 | 𝙂𝙚𝙣𝙚𝙧𝙖𝙩𝙞𝙫𝙚 𝘼𝙄 | 𝙇𝙖𝙧𝙜𝙚 𝙇𝙖𝙣𝙜𝙪𝙖𝙜𝙚 𝙈𝙤𝙙𝙚𝙡𝙨 (𝙇𝙇𝙈𝙨) | 𝙍𝘼𝙂 | 𝙇𝙖𝙣𝙜𝘾𝙝𝙖𝙞𝙣 | 𝘼𝙄 𝘼𝙜𝙚𝙣𝙩𝙨 | 𝙊𝙥𝙚𝙣𝘼𝙄 | 𝙁𝙖𝙨𝙩𝘼𝙋𝙄 | 𝙍𝙚𝙖𝙘𝙩 | 𝘼𝙒𝙎 | 𝘿𝙤𝙘𝙠𝙚𝙧 | 𝙆𝙪𝙗𝙚𝙧𝙣𝙚𝙩𝙚𝙨 | 𝙈𝙇𝙊𝙥𝙨 | 𝙎𝙖𝙖𝙎 𝘼𝙥𝙥𝙡𝙞𝙘𝙖𝙩𝙞𝙤𝙣𝙨 | 𝙍𝙀𝙎𝙏 𝘼𝙋𝙄𝙨 | 𝙑𝙚𝙘𝙩𝙤𝙧 𝘿𝙖𝙩𝙖𝙗𝙖𝙨𝙚𝙨
Mohsin R.
has worked
.
$20/hr
100%
Job Success
$200K+ earned
Available now
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Experienced Software Architect & Developer |25+ Years | 100+ Successful Projects
I build scalable SaaS platforms and intelligent web applications powered by Python, Django, and LLM integrations.Whether you need to launch a high-performance MVP or inject generative AI into your existing workflow, I handle the architecture, database design, and cloud deployment (AWS/Azure) to ensure your platform scales effortlessly.
✅ AI & Machine Learning Expertise
I turn complex data into production-ready AI solutions that drive automation and business growth.Using TensorFlow, PyTorch, and scikit-learn, I build and deploy intelligent systems for NLP, computer vision, and predictive analytics. I don't just build models; I integrate them seamlessly into your existing software architecture so they deliver real-world value from day one.
✅ SaaS & Microservices Architecture
I specialize in designing cloud-native SaaS platforms using microservices, REST APIs, and containerized deployments. My solutions are built for scalability, performance, and maintainability—ideal for fast-growing startups and enterprise systems.
✅ Scalable, Maintainable Systems
Strong background in software architecture, OOP, and design patterns, with a focus on creating modular and extensible systems for long-term success.
✅ Innovation & Business Impact
Driven by results, I focus on creating cutting-edge, business-focused solutions that solve complex challenges, optimize operations, and accelerate growth.
Let’s transform your ideas into powerful, future-ready software.
Kamal M.
has worked
.
$30/hr
100%
Job Success
$300K+ earned
Available now
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𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 & 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 8+ 𝗬𝗲𝗮𝗿𝘀 | 𝟭% 𝗼𝗳 𝗨𝗽𝘄𝗼𝗿𝗸 | 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀.
✅ $300K+ Total earnings
✅8+ Years experience as Fullstack Developer ✅ 80+ Projects Completed. ✅Top Rated Plus.
✅ 100% Job Success Rate. ✅ AWS certified ✅ Python certified ✅50hrs/week available
✅ 4+ AI/ML Integrations
🔴 I am in the 𝗧𝗼𝗽 𝟭% overall on Upwork.
🔴 I am in the 𝗧𝗼𝗽 𝟰% overall on Stack Overflow.
𝐀𝐈 𝐀𝐠𝐞𝐧𝐭 / 𝐕𝐨𝐢𝐜𝐞 𝐀𝐠𝐞𝐧𝐭𝐬: 𝐂𝐫𝐞𝐰𝐀𝐈 / 𝐀𝐮𝐭𝐨𝐆𝐞𝐧 / 𝐀𝐦𝐚𝐳𝐨𝐧 𝐏𝐨𝐥𝐥𝐲 / 𝐃𝐞𝐞𝐩𝐠𝐫𝐚𝐦 / 𝐑𝐚𝐬𝐚 𝐀𝐈 / 𝐑𝐢𝐯𝐞𝐫𝐬𝐢𝐝𝐞 𝐒𝐃𝐊 / 𝐀𝐳𝐮𝐫𝐞 𝐀𝐈 𝐒𝐩𝐞𝐞𝐜𝐡/𝐋𝐋𝐌 𝐅𝐢𝐧𝐞𝐭𝐮𝐧𝐢𝐧𝐠: 𝐔𝐬𝐢𝐧𝐠 𝐏𝐄𝐅𝐓 / 𝐋𝐨𝐑𝐀 / 𝐐𝐋𝐨𝐑𝐀 / 𝐑𝐋𝐇𝐅 / 𝐃𝐏𝐎 / 𝐒𝐅𝐓 𝐰𝐢𝐭𝐡 𝐔𝐧𝐬𝐥𝐨𝐭𝐡 / 𝐀𝐱𝐨𝐥𝐨𝐭𝐥 / 𝐇𝐮𝐠𝐠𝐢𝐧𝐠𝐅𝐚𝐜𝐞 𝐀𝐮𝐭𝐨𝐓𝐫𝐚𝐢𝐧 / 𝐒𝐚𝐠𝐞𝐌𝐚𝐤𝐞𝐫 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠/𝐎𝐩𝐞𝐧-𝐒𝐨𝐮𝐫𝐜𝐞 𝐋𝐋𝐌𝐬: 𝐋𝐋𝐀𝐌𝐀 𝟑 / 𝐌𝐢𝐬𝐭𝐫𝐚𝐥 𝟕𝐁 / 𝐌𝐢𝐱𝐭𝐫𝐚𝐥 𝟖𝐱𝟕𝐁 / 𝐅𝐚𝐥𝐜𝐨𝐧 / 𝐆𝐞𝐦𝐦𝐚 / 𝐁𝐥𝐨𝐨𝐦 / 𝐎𝐫𝐜𝐚 𝐌𝐢𝐧𝐢 / 𝐆𝐮𝐚𝐧𝐚𝐜𝐨/𝐅𝐚𝐬𝐭 𝐈𝐧𝐟𝐞𝐫𝐞𝐧𝐜𝐞: 𝐯𝐋𝐋𝐌 / 𝐓𝐆𝐈 / 𝐓𝐞𝐧𝐬𝐨𝐫𝐑𝐓-𝐋𝐋𝐌 / 𝐒𝐊𝐏𝐢𝐥𝐨𝐭/𝐏𝐫𝐨𝐦𝐩𝐭 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠: 𝐌𝐮𝐥𝐭𝐢-𝐭𝐮𝐫𝐧 / 𝐅𝐞𝐰-𝐬𝐡𝐨𝐭 / 𝐙𝐞𝐫𝐨-𝐬𝐡𝐨𝐭 / 𝐑𝐀𝐆-𝐁𝐚𝐬𝐞𝐝 / 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐚𝐛𝐥𝐞 𝐏𝐢𝐩𝐞𝐥𝐢𝐧𝐞𝐬/𝐐𝐮𝐚𝐧𝐭𝐢𝐳𝐚𝐭𝐢𝐨𝐧: 𝐀𝐖𝐐 / 𝐆𝐏𝐓𝐐 / 𝐆𝐆𝐔𝐅 / 𝐆𝐆𝐌𝐋 / 𝐐𝐋𝐎𝐑𝐀 / 𝐏𝐓𝐐 / 𝐃𝐐/𝐑𝐀𝐆 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 & 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: 𝐋𝐚𝐧𝐠𝐂𝐡𝐚𝐢𝐧 / 𝐋𝐥𝐚𝐦𝐚𝐈𝐧𝐝𝐞𝐱 / 𝐂𝐡𝐫𝐨𝐦𝐚 / 𝐅𝐀𝐈𝐒𝐒 / 𝐏𝐢𝐧𝐞𝐜𝐨𝐧𝐞 / 𝐐𝐝𝐫𝐚𝐧𝐭 / 𝐖𝐞𝐚𝐯𝐢𝐚𝐭𝐞 / 𝐌𝐢𝐥𝐯𝐮𝐬
Greetings! I am Atul Kumar, a seasoned developer with over 8+ years of experience in web application and software development.
Working with LLMs for the past 8+ years and have good expertise in AI Agents development using langchain, LlamaIndex, and LLMs like Claude, GPT4o, Amazon Bedrock, Ollama
🔹 AI Agents / Voice Agents: CrewAI, AutoGen, Amazon Polly, Deepgram, Rasa AI
🔹 LLM Fine-tuning: PEFT, LoRA, QLoRA, RLHF, DPO with Unsloth, Axolotl, HuggingFace AutoTrain
🔹 Open-Source LLMs: LLaMA 3, Mistral 7B, Mixtral 8×7B, Falcon, Gemma
🔹 Inference Optimization: vLLM, TGI, TensorRT-LLM
🔹 Prompt Engineering: Multi-turn, Few-shot, Zero-shot, RAG-based prompts
🔹 Quantization: AWQ, GPTQ, GGUF, GGML
🔹 RAG Systems: LangChain, LlamaIndex, ChromaDB, FAISS, Pinecone, Qdrant
🔹 Data Pipeline: Synthetic dataset generation, LLM evaluation frameworks
🔹 LLM Deployment: AWS Sagemaker, RunPod, GCP AI Platform, Vercel AI SDK
🖥️ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗦𝗸𝗶𝗹𝗹𝘀:
🔹 Proficient in Node.js, Express.js, Python, Django, Flask, AWS Lambda for backend API.
🔹 Experienced with relational & NoSQL databases: MySQL, PostgreSQL, MongoDB, Firebase, Firestore.
🔹 Skilled in Python FastAPI, REST API, GraphQL API development, and database schema design.
🔹 Knowledgeable in Redis, Docker, Kubernetes, AWS EC2, S3, Nginx for scalable infrastructure.
🔹 Experienced with Nest.js for enterprise-grade server-side applications.
🔹 LangChain, LangServe, LangSmith, HuggingFace, Transformers for AI/LLM integrations.
🔹 Vector Databases: Chroma, FAISS, Pinecone, Qdrant for RAG pipelines.
🔹 Low-code AI tools: Flowise AI, LangFlow, StackAI for rapid prototyping.
🔹 Familiar with Celery task queues, testing frameworks (Pytest, Unittest), and automation tools like Selenium.
🌐 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 𝗦𝗸𝗶𝗹𝗹𝘀:
🔹 Proficient in TypeScript, Redux Toolkit, Tailwind CSS with Next.js for high-performance frontends.
🔹 Skilled in building Progressive Web Apps (PWA) and Single Page Applications (SPA).
🔹 Expert in Vue.js, Nuxt.js, React.js, Next.js, HTML5, CSS3, React Native for responsive and cross-platform UIs.
🛠️ 𝗧𝗼𝗼𝗹𝘀 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀:
🔹 Skilled in Python ML libraries: Scikit-learn, Numpy, Pandas, Matplotlib, Seaborn.
🔹 Familiar with OpenAI APIs, Whisper, GPT models, ChatGPT integration, and AI chatbot deployment.
🔹 Experienced with AWS (Lambda, S3, EC2, Sagemaker), Git/GitHub, and Linux environments (Ubuntu, CentOS).
🌟 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗔𝗜 & 𝗟𝗟𝗠 𝗦𝗸𝗶𝗹𝗹𝘀:
🔹 AI Agents / Voice Assistants: CrewAI, AutoGen, Amazon Polly, Deepgram, Rasa AI.
🔹 Open-Source LLMs: LLaMA 3, Mistral 7B, Mixtral 8×7B, Falcon, Gemma.
🔹 Inference Optimization: vLLM, TGI, TensorRT-LLM for high-speed deployments.
🔹 Prompt Engineering: Multi-turn, Few-shot, Zero-shot, RAG-based prompts.
🔹 Quantization: AWQ, GPTQ, GGUF, GGML for efficient LLM deployment.
🔹 LLM Fine-tuning: PEFT, LoRA, QLoRA, RLHF, DPO with Unsloth, Axolotl, H
My expertise spans both frontend and backend technologies, as well as a variety of tools and additional skills that enable me to deliver comprehensive solutions.
I am dedicated to providing high-quality, efficient solutions that cater to the unique needs of each project. My diverse skill set allows me to approach challenges from multiple angles, ensuring robust and innovative solutions.
Warm regards,
Atul Kumar
Atul K.
has worked
.
Associated with
Excellence Technosoft Pvt Ltd
$1M+
earned
$30/hr
$200+ earned
Available now
Start of list.
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Hi, I’m Boris Frenzel — Full-Stack Developer & AI Engineer with 10+ Years of Experience
I started coding professionally after 2012 and since then, I've worked in Germany with Multiple companies.
I specialize in building scalable backend systems, AI-driven applications, and high-performance web solutions that deliver real business impact. From developing complex automation workflows to fine-tuning large language models, I bring a deep technical skillset and a results-driven mindset to every project.
🔍 AI & Machine Learning Expertise
• Integrated OpenAI, Mistral, and custom vLLM models on dedicated GPUs.
• Built and deployed AI automation tools, from content generation systems to NLP-based assistants.
• Skilled in fine-tuning LLMs, optimizing model inference pipelines, and deploying scalable ML infrastructure.
💻 Full-Stack & Backend Development
• Tech stack includes React, Node.js, Python (Django/FastAPI/Flask), PHP, and more.
• Built robust APIs, data pipelines, and scalable backend services for high-load environments.
• Strong experience with Stripe integrations and PDF processing (e.g., using fpdf2).
🤝 Why Work With Me
• Proven track record of delivering high-quality, scalable systems.
• Transparent, collaborative, and client-focused approach.
• 90%+ client referral rate — clients trust me to take projects from idea to deployment.
Let’s build something powerful together.
$25/hr
100%
Job Success
$20K+ earned
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I build production-ready AI automation systems that don’t just demo well, they run reliably in your business, pass audits, and cut costs.
With 8+ years in Python development and a proven track record of delivering high quality output, I specialize in AI-first workflows that integrate directly with your existing SaaS tools, databases, and APIs. I bridge the gap between powerful new models like GPT-5, Perplexity, Claude.ai, Gemini etc and the operational demands of real-world businesses.
✅ WHAT I DELIVER:
⭐ Custom GPT Agents & RPA - task-oriented agents with multi-tool workflows, browser automation, and cost control.
⭐ Vertical SaaS Integrations - Shopify, Tekmetric, HubSpot, Google Workspace, Make.com, n8n, Zapier replacement pipelines.
⭐ RAG-based Knowledge Systems - secure vector DB (Pinecone, PGVector) search over private docs with audit logs.
⭐ Full-Stack AI Applications - FastAPI/Flask/Django/NodeJs REST API backends, React/Tailwind frontends, Dockerized & cloud-deployed.
⭐ Data Automation & Reporting - scraping, cleansing, transformation, and live dashboards with eval monitoring.
✅ HOW I WORK:
⭐ Production mindset: acceptance tests, observability (tracing, logs, cost dashboards), prompt versioning.
⭐ Security & compliance: API key vaulting, PII masking, data-residency controls.
⭐ Cost engineering: caching, smart model fallback, batch operations to reduce spend.
⭐ Ongoing improvement: retainers for prompt/tool refinement and rapid iteration.
✅ TECH STACK:
Python • FastAPI • Flask • Django REST • Playwright • LangGraph • Redis • PostgreSQL • MongoDB • Pinecone • PGVector • AWS/GCP/Azure • Docker/Kubernetes • CI/CD (GitHub Actions, Jenkins) • RPA & browser automation
With me, you’re getting more than just “AI that works”, you’re getting AI that works in production. Lets have a chat!
Manish K.
has worked
.
$25/hr
100%
Job Success
$100K+ earned
Available now
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With 8+ years of experience in Full Stack Development, I help startups, agencies, and businesses build scalable web applications, AI-powered solutions, Voice AI agents, and automation systems that improve efficiency and accelerate growth.
My expertise includes:
* Full Stack Development (React, Next.js, Node.js, Express)
* AI Chatbots & Custom AI Agents
* Voice AI Agents & Conversational AI
* OpenAI, LangChain, RAG & LLM Integrations
* SaaS Product Development
* Workflow Automation (n8n, Make, Zapier)
* REST APIs & Backend Systems
* MongoDB, PostgreSQL, Firebase
* Responsive UI/UX Development
What I deliver:
✅ Scalable & clean code
✅ Fast communication
✅ Reliable and on-time delivery
✅ Business-focused solutions
✅ Long-term support
I have worked on:
✔ AI Chatbots & AI Assistants
✔ Voice AI Calling Agents
✔ SaaS Platforms & Dashboards
✔ CRM & Automation Systems
✔ API Integrations
✔ AI Workflow Automation
✔ Custom Full Stack Applications
Whether you need an AI-powered SaaS platform, an intelligent chatbot, a Voice AI agent, or a complete full-stack application, I can help turn your idea into a production-ready solution.
Let’s build something impactful together.
Tayyab S.
has worked
.
Associated with
NeuroArk AI
$1K+
earned
$25/hr
100%
Job Success
$100K+ earned
Available now
Start of list.
End of list.
💼 12+ Years Experience
🏆 Top Rated Plus (Top 1%) on Upwork
📈 5900+ Hours Billed
⚡ 100% Job Success
💰 $100K+ Earnings | 30+ Projects Delivered
🚀 I help businesses build scalable backend systems, AI solutions, and high-performance SaaS platforms using Python.
📊 Core Capabilities
Build scalable, high-performance APIs using FastAPI, Django, and Flask.
High-throughput SaaS platforms, ETL pipelines, AI/ML workflows, and automation systems.
DevOps proficiency: Docker, Kubernetes, CI/CD, GitHub Actions, AWS, GCP.
Refactoring legacy systems, microservices architecture, and performance optimization.
Strong focus on quality, maintainability, and measurable outcomes.
✅ How I Help Clients
Backend APIs and full-stack development with Django/Flask + React/Next.js.
End-to-end SaaS and web applications with FastAPI/Django backends.
Modernizing legacy Python codebases and migrating to microservices.
Data pipelines, ML workflows, AI automation, and ETL solutions.
🔥 Key Projects & Achievements
• AI Recruitment Platform – FastAPI + NLP
→ Automated candidate matching, reducing screening time by 40%.
• Medical AI Automation Tool – Flask + PostgreSQL
→ Streamlined workflows and reporting for medical operations.
• Sales Intelligence SaaS – FastAPI + Redis + Celery
→ Delivered real-time analytics for large datasets.
• Ecommerce & Wellness Platform – Django + React
→ Built a complete product and order management system.
• AdTech Backend – Flask + TensorFlow
→ Developed high-volume campaign targeting for digital signage.
• Data Pipelines – Python asyncio + ETL
→ Processed large-scale datasets efficiently, improving data processing speed by 30%.
🧩 Roles I Excel In:
Senior Python Developer · Backend Engineer · Python DevOps Engineer · AI & ML Developer · Full-Stack Python Developer · FastAPI/Django Specialist · Flask API Architect · Automation & NLP Developer
🏭 Industries Served:
Recruitment / HR Tech · Healthcare · Sales SaaS · E-commerce & Wellness · AdTech · AI & Automation · Data Engineering
💬 Client Feedback:
⭐⭐⭐⭐⭐ “Hassam managed our AWS ETL project professionally, including code and infrastructure. Highly recommended.”
⭐⭐⭐⭐⭐ “Hassam quickly understood our codebase and contributed across components. He takes initiative and adds value.”
⭐⭐⭐⭐⭐ “Hassam did a great job for us. He got up to speed on our complicated architecture quickly, and he made great contributions to our product.”
🚀 Let’s Build Something Great:
Message me to schedule a 15-minute call. I’ll show you how to deliver reliable, scalable Python solutions with measurable impact.
Hassam H.
has worked
.