Hire the Best Celery Developers

Affordability, Reliability & Professionalism are my three main working principles to help you meet your objective. I'm a Django Developer, having more than two years of experience, I worked with numerous clients and completed many tasks for my clients with 5-star feedback as well. My expertise is in Database-Filtering, REST-APIs, Cloud Computing using GCP which made me effective than other developers; moreover, I have much experience building real-time chat applications; which interests me the most among all other works. I hope you would view my "Portfolio" to know about my projects and my accomplishments, so that I may assure you that I am someone for whom this unfinished task is waiting for. Thank you for your valuable time, I hope to see you as my next client.

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

I am a highly motivated and enthusiastic Backend Developer with 8 years of experience building web applications using Python and related technologies. I am well prepared to work with Machine Learning (ML) and Artificial Intelligence (AI), so now looking for an opportunity to apply my knowledge to deliver exciting new projects in this area! I'm passionate about programming and have consistently delivered high-quality, scalable, and robust solutions that meet my client's needs. I have experience working in international markets. One of my strengths is the ability to create the final product while working in an international team united by a common goal. TECH STACK ✅ PROGRAMMING LANGUAGES: Python, Javascript ✅ FRAMEWORKS/LIBRARIES: Django, Flask, FastAPI, Aiohttp ✅ DATABASES: MySQL, PostgreSQL, MongoDB, Redis, Elasticsearch ✅ AI/ML STACK: Streamlit, Gradio, Python notebooks, LlamaIndex, Langgraph, Langchain, RAG, Embeddings, LLM, FineTuning, NPL, vector database, graph database, Knowledge Graph, OpenAI, Gemini, Groq (LLama2, LLama3, Gemma, LLava, etc), Ollama ✅ OTHER: Celery, AWS, Digital Ocean, Sockets PORTFOLIO ✅ Onboard charging system. I discussed the requirements with the client, developed several modules, and tested the codebase. ✅ Web application with an emulator of charging stations and central. I designed models for databases, created endpoints, and implemented OCPP 1.6 functionalities. ✅ Development of an app for tracking races and for racing statistics. I developed API service using the Django REST framework, designed database models, covered code with unit tests, integrated with the Stripe payment system, and mentored junior developers on best practices and programming techniques. ✅ Car auction platform which allows users to buy cars. I performed code review and code refactoring, created internal tools for parsing data, covered code with unit tests, and implemented new features ✅ CRM system for casino based on popular casino engine. In this project, I developed a serverless API service using AWS Lambda, AWS API gateway, and serverless framework for Node.js, delivered code review and code refactoring, and designed models using serverless CMS Webiny and GraphQL. ✅ Development of an app for tracking students and study unit (Universities, Colleges, schools) processes. I worked on a team to develop a web-based application using Python and Django, participated in code reviews, bug fixing, and testing activities, and assisted in the application deployment on the production server. ✅ A system for boat or yacht reservations. I developed and maintained a Python-based application, designed database models, integrated with the Stripe payment system, implemented sockets chat using Django channels, and developed and maintained the front-end part using jQuery, HTML5, and CSS3. LANGUAGES I SPEAK Ukrainian is my native language. Besides, I have strong English skills. Most of my previous customers were English-speaking, so I am comfortable communicating in English. MY TEAM I am at ease as an individual contributor, but being a team player works best for me. So I joined Extrawest — an Upwork Top Rated Agency specializing in FinTech and Banking, Gambling and Betting, Food Ordering and Delivery, Logistics and Fleet Management, Medical Insurance and Healthcare, and special software for Electric Vehicles Charging Station networks since 2006. Having most of our resources based in Europe, we’ve been working with customers from over 20 countries (the US, Canada, Australia, most of the EU, South Africa, Singapore, Japan). Hence, it won’t be a problem for us to adjust to your timezone and working schedule. INVITE ME FOR AN INTERVIEW If you feel I’m a good fit for your project, let's discuss how I can help streamline your business’s growth! 🟩 🟩 🟩 🟩 My Agency Skills: Front-End (Frontend) Development, Back-End (Backend) Development, Full-Stack (Fullstack) Development, Mobile Development, Artificial Intelligence (AI), Machine Learning (ML), EV Charging, eMobility, OCPI, OCPP, Automotive, Logistics, Delivery, Food Ordering, FinTech, Healthcare, Insurance, Betting, Gambling, Flutter, Dart, JavaScript (JS), TypeScript (TS), Angular, Vue.js (VueJS, Vue), React.js (ReactJS, React), Node.js (NodeJS, Node), Java, Spring, SpringBoot, Hibernate, Python, Django, Scrapy, Quality Assurance (QA), Manual Testing, Automated Testing, UI/UX Design, Figma, Adobe Creative Cloud, DevOps, MySQL, PostgreSQL, MongoDB, Firebase, Docker, Amazon Web Services (AWS), Google Cloud Platform (GCP), Project Management (PM).

🔹 Stop hiring developers. Hire someone who understands your product. I help startups and SaaS companies build scalable backend systems, automation workflows, and data-driven platforms, the kind that don’t break after launch. If your product involves APIs, dashboards, large datasets, integrations, or AI features, I’ve probably built it before. What I Build Most Often • SaaS platforms (multi-tenant architecture) • Backend APIs (FastAPI, Django, Node.js/Express) • Integrations (OAuth, webhooks, third-party services, CRMs) • Automation & background workers • Analytics dashboards & admin panels (React / Next.js) • Data processing pipelines • Cloud deployments on AWS Why Clients Hire Me Many projects fail after MVP because the backend wasn’t designed for growth. I design for: 1. clean architecture 2. predictable scaling 3. maintainability 4. faster future features So you don’t need to rebuild in 6 months. Recent Work ✔ Built medical platform MVP (Node.js + React), production ready ✔ Designed military social platform infrastructure (Flask + AWS + Docker) ✔ Created organization-wide email compliance & analysis system (OAuth integrations) ✔ Built IoT monitoring platform with real-time device data ingestion ✔ Developed automation workflows & analytics dashboards Tech Stack 1. Backend Python (FastAPI, Django, Flask) Node.js (Express, NestJS) REST APIs, Webhooks, OAuth 2. Frontend React, Next.js, Vue Tailwind, Material UI 3. Data & Infrastructure PostgreSQL, Redis, MongoDB AWS, Docker, CI/CD Large dataset processing & reporting If you need someone who can own both the architecture and implementation, message me before hiring multiple developers.

If your backend is slow, your APIs keep breaking under load, or your AI features feel bolted on instead of built in, that's usually where I come in. I build Django and FastAPI backends on AWS for SaaS and AI products that need to stay fast under real user load, not just pass a demo. Most of my work is either fixing slow APIs and deployment bottlenecks or shipping new backend features (REST APIs, async jobs, LLM/RAG integrations) for teams that outgrew their first architecture. I'm a senior Python backend developer based in India, with 8+ years, top-rated, and 100% job success. What I work on day to day: ★ REST APIs and backend services (Django/DRF, FastAPI, Flask when it fits) ★ Cloud deployments on AWS: EC2, S3, RDS, Lambda, Docker, CI/CD pipelines ★ Async and background jobs: Celery, Redis, RabbitMQ for queues, reports, notifications ★ AI and LLM integration: RAG workflows, chatbots, automation pipelines (OpenAI, Gemini, Grok APIs; not just prompt wrappers) ★ Backend refactoring: slow queries, messy codebases, deployments that break every release ★ Microservices where it makes sense: not microservices for the sake of it A few projects I've led or built recently: Astrosure.ai: AI-powered astrology platform from scratch. I led the backend: Django and FastAPI services, birth chart processing, dosha/dasha rules, and the Agastyaa chatbot with LLM integration. Deployed on AWS with Docker and CI/CD on EKS. HerKey (herkey .com): India's largest career platform for women. Built scalable APIs for job matching, session booking, and notifications. Django REST Framework, MongoDB, Elasticsearch, Kubernetes on AWS. We cut incident triage time by around 40% after improving monitoring and deployment flow. Riyaah (riyaah.sa): Beauty e-commerce platform in Saudi Arabia. Backend for product catalog, orders, and payment flows. Django, PostgreSQL, AWS. Before Upwork, I worked with Capgemini (banking/ANZ), Flooid, Keuro Digital, and Bricksteel, mostly backend, team lead, and client-facing delivery. I also run Sparkscribe Technologies for larger or long-term engagements where you need more than one developer. On Upwork you work with me directly. For larger scopes, I may involve senior developers from my company under my technical lead, only with your approval and with me owning architecture and delivery. How I usually work with clients: I keep communication straightforward, regular updates, and clear ETAs, with no disappearing mid-sprint. I've managed small teams (up to 10 devs), done code reviews, and set up CI/CD and monitoring so releases don't turn into firefights. Most of my Upwork clients mention responsiveness and clean delivery in their reviews. If you need someone who can own the backend end-to-end architecture, APIs, cloud, AI integration, and production stability, send me a message with a short description of what you're building. I'll reply with honest thoughts on scope and how I'd approach it.

👋 Hi, I’m Aziza, a Top Rated Plus Python Backend Engineer with 7+ years of experience building backend systems, APIs, automation tools, data pipelines, and production-ready applications. I help businesses replace messy, manual, or outdated backend workflows with clean, reliable software that is easier to use, easier to maintain, and ready to scale. If you need someone who can step into an existing codebase, understand the business problem quickly, ask the right questions, and deliver without heavy supervision, I can help. 🚀 What I do best: • Build Python backend systems from scratch • Create and improve Django, DRF, FastAPI, Flask, and Django Ninja APIs • Convert Bash scripts and legacy workflows into modern Python applications • Build internal dashboards, admin tools, and automation platforms • Design web scraping and data extraction pipelines • Integrate third-party APIs, payments, authentication, and cloud services • Improve database structure, queries, performance, and reliability • Add Celery jobs, scheduled tasks, logging, and background processing • Debug production issues and clean up existing backend systems • Use Claude, Cursor, and AI tools to move faster while keeping code clean and production-ready 🛠️ Technologies I work with: ✅ Python ✅ Django ✅ Django REST Framework ✅ Django Ninja ✅ FastAPI ✅ Flask ✅ PostgreSQL ✅ MySQL ✅ MariaDB ✅ MongoDB ✅ Supabase ✅ Celery ✅ Redis ✅ AWS S3 ✅ AWS Lambda ✅ Railway ✅ Cloudflare ✅ Docker ✅ GitHub Actions ✅ Bitbucket ✅ Stripe API ✅ RevenueCat ✅ Firebase ✅ OneSignal ✅ Swagger / OpenAPI ✅ Pytest ✅ BeautifulSoup ✅ Selenium ✅ Claude ✅ Cursor 💼 Recent results: • Modernized 30+ fragmented Bash scripts into a clean Django web application • Recreated complex legacy logic in Python with better structure, logging, error handling, and documentation • Worked with PostgreSQL and MariaDB inside one Django project • Consolidated multiple API environments into a single Django REST Framework application • Built backend APIs and data workflows for a data-heavy analytics dashboard • Worked with scraping, onboarding flows, Supabase, Railway, Clerk, and Cloudflare • Delivered backend work that clients described as clean, efficient, well-structured, and easy to maintain 🤖 AI-assisted development: I actively use Claude, Cursor, and AI coding tools for research, planning, debugging, prompt work, refactoring, and implementation. I use AI to speed up development, but I still review, test, and structure the code carefully so the final result is reliable and maintainable. ✨ Why clients choose me: Clients describe me as a clear communicator, reliable, proactive, collaborative, detail-oriented, and committed to quality. I care about the real business goal behind the code. I do not just “finish tickets.” I help improve the system, reduce manual work, make workflows smoother, and leave behind code that other developers can understand and maintain. If your backend needs to be built, fixed, automated, modernized, or scaled, I’d be happy to learn more about your project. 🚀