Microservices Architects zum Anheuern
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Gesponserte Freelancer
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Highly motivated and detail-oriented professional with a strong background in problem-solving. Good team player as well as good at working alone; very sociable. Hardworking and responsible for projects and tasks. Eager to learn a lot of new information and skills every single dayHighly motivated and detail-oriented professional with a strong background in problem-solving. Good team player as well as good at working alone; very sociable. Hardworking and responsible for projects and tasks. Eager to learn a lot of new information and skills every single day weniger
dmytrobenko
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I build AI-driven backend systems that think, learn, and scale. Most companies use AI in fragments—a chatbot here, an automation there. I help startups and enterprises build complete AI ecosystems by integrating Large Language Models (LLMs) into robust, production-grade backend architectures. Whether you are building...I build AI-driven backend systems that think, learn, and scale. Most companies use AI in fragments—a chatbot here, an automation there. I help startups and enterprises build complete AI ecosystems by integrating Large Language Models (LLMs) into robust, production-grade backend architectures. Whether you are building an AI SaaS MVP from scratch or adding RAG-based intelligence to an existing platform, I deliver clean, maintainable, and secure code. What I bring to your project: 1. AI Integration: Expert in OpenAI (o1/GPT-4), Claude 3.5, and Gemini 2.0. I specialize in RAG (Retrieval-Augmented Generation) and AI Agent workflows using LangChain and CrewAI. 2. Backend Excellence: Scalable microservices built with FastAPI, Python, or NestJS. I focus on high-concurrency, security, and performance. 3. Vector Infrastructure: Implementation of Pinecone, Weaviate, or PGVector for efficient data retrieval. 4. SaaS Architecture: Multi-tenant database design, Stripe subscription logic, and RBAC (Role-Based Access Control). Why work with me? - Speed to MVP: I focus on getting your AI SaaS to market in 3–6 weeks without technical debt. - Product Thinking: I don't just follow tickets; I ask "Why?" to ensure the feature actually drives user value. - Security First: I ensure your AI integrations are prompt-injection resistant and GDPR/SOC2 compliant. TECHNICAL STACK: - AI & LLM: OpenAI API, LangChain, RAG, Prompt Engineering, Vector DBs (Pinecone) - Backend: Python (FastAPI, Django), Node.js (NestJS, Express), Go - Databases: PostgreSQL, MongoDB, Redis, Supabase - Cloud & DevOps: AWS (Lambda, ECS), Docker, GitHub Actions, Vercel - Integrations: Stripe, Auth0, Twilio, HubSpot, Slack API weniger
yuriihal
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stanislavm37 stanislavm37
$39 USD / Stunde
Full-Stack & Mobile | React • Python • Rust • AWSUkraineReact + React Native + Python + Rust | AWS | APIs | AI 🚀 Senior Full-Stack & Mobile Engineer (React, TypeScript, Python, Rust) If you're building a modern web or mobile app, scaling backend APIs, or adding AI features with AWS infrastructure, I can help. I specialize in: 🔹 Frontend (React / TypeScript) ▪ React...React + React Native + Python + Rust | AWS | APIs | AI 🚀 Senior Full-Stack & Mobile Engineer (React, TypeScript, Python, Rust) If you're building a modern web or mobile app, scaling backend APIs, or adding AI features with AWS infrastructure, I can help. I specialize in: 🔹 Frontend (React / TypeScript) ▪ React (Hooks, Context, Suspense) ▪ Next.js (SSR, SSG, ISR, App Router) ▪ TypeScript (strict typing, scalable architecture) ▪ State: Redux Toolkit, Zustand, React Query ▪ UI: TailwindCSS, Shadcn UI, MUI ▪ Forms: React Hook Form, Zod ▪ Auth: JWT, OAuth, NextAuth ▪ Testing: Jest, RTL, Playwright ▪ Performance, SEO, responsive UI ▪ REST, GraphQL, WebSockets, SSE 🔹 Mobile App Development (iOS / Android) ▪ React Native (Expo + CLI) ▪ Cross-platform apps (iOS + Android) ▪ Swift (native iOS) ▪ Flutter (Dart cross-platform) ▪ Navigation (React Navigation) ▪ State management (Redux Toolkit, Zustand) ▪ API integration (REST / GraphQL) ▪ Push notifications (Firebase / Expo) ▪ App Store & Google Play deployment ▪ OTA updates (Expo EAS) ▪ Performance optimization 🔹 Backend (Python / APIs / Microservices) ▪ FastAPI, Django, DRF, Flask ▪ REST APIs (OpenAPI, versioning) ▪ Auth: JWT, OAuth2, RBAC ▪ PostgreSQL (schema design, optimization) ▪ Redis (caching, rate limiting) ▪ Background jobs: Celery ▪ Queues: SQS, RabbitMQ ▪ File uploads, S3 storage ▪ Stripe, Twilio, SendGrid integrations ▪ Testing: Pytest 🔹 Rust (High-Performance Services) ▪ Axum / Actix ▪ Tokio async systems ▪ High-throughput APIs ▪ SQLx / Diesel ▪ Reliable microservices 🔹 AI Infrastructure / LLM Systems ▪ OpenAI, Anthropic, OSS models ▪ RAG pipelines + embeddings ▪ Pinecone, Qdrant, FAISS ▪ Streaming AI (SSE / WebSockets) ▪ Prompt workflows + structured outputs ▪ Cost control + rate limiting 🔹 DevOps / AWS ▪ AWS: EC2, S3, RDS, Lambda, API Gateway ▪ Docker / Docker Compose ▪ CI/CD (GitHub Actions) ▪ Nginx, Linux, SSL ---------------------------------------------------- ✅ I help teams: ▪ Build MVPs fast ▪ Design scalable APIs & microservices ▪ Improve performance (PostgreSQL & APIs) ▪ Build secure auth systems ▪ Deploy reliable AWS infrastructure ▪ Add AI features (RAG, LLM workflows) ▪ Refactor legacy code into clean architecture ---------------------------------------------------- ⚙ Tech Stack React • React Native • TypeScript • Next.js • Redux Toolkit • Zustand • React Query • TailwindCSS • Shadcn UI • FastAPI • Django • DRF • Python • Rust • Axum • Actix • PostgreSQL • Redis • Celery • Docker • AWS • EC2 • S3 • RDS • Lambda • API Gateway • CI/CD • WebSockets • SSE • REST • GraphQL • Stripe • OAuth • JWT • Microservices • LLM • RAG • Pinecone • Qdrant • OpenAI • Expo • iOS • Android • Firebase • Push Notifications • Swift • Flutter weniger
stanislavm37
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Full-stack developer with 8+ years experience. Python, Node.js, web scraping, automation, bots, APIs, data analysis. Selenium, Puppeteer, Scrapy, Flask, FastAPI, Express, React, Docker, AWS. Fast turnaround, available now.Full-stack developer with 8+ years experience. Python, Node.js, web scraping, automation, bots, APIs, data analysis. Selenium, Puppeteer, Scrapy, Flask, FastAPI, Express, React, Docker, AWS. Fast turnaround, available now. weniger
songhaowang
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I’m Ayesha Tanveer, a software engineer specializing in enterprise-grade AI systems, automation, and scalable web & mobile platforms. I work directly with organizations to design, build, and optimize robust digital solutions that align with business strategy, security standards, and long-term growth. My work...I’m Ayesha Tanveer, a software engineer specializing in enterprise-grade AI systems, automation, and scalable web & mobile platforms. I work directly with organizations to design, build, and optimize robust digital solutions that align with business strategy, security standards, and long-term growth. My work emphasizes reliability, automation, and scalability, helping teams reduce operational overhead, modernize workflows, and deploy production-ready systems with confidence. Core Capabilities ✨ AI & Intelligent Automation ✅ Enterprise AI Chatbots & Virtual Assistants ✅ Workflow Automation & Process Optimization ✅ Machine Learning & Data-Driven Systems ✅ Intelligent Data Extraction & Processing Pipelines ✨ Web & Software Engineering ✅ Full-Stack Development (MERN, MEAN, Next.js, NestJS) ✅ Django & Laravel Enterprise Applications ✅ Progressive Web Apps (PWAs) ✅ Custom WordPress & Shopify Extensions ✅ Headless CMS & JAMstack Architectures ✨ Mobile & Platform Development ✅ Flutter & React Native Applications ✅ Secure API Integrations & Scalable System Design ✨ UX Engineering & Product Design ✅ UX/UI Design using Figma & Adobe XD ✅ User-Centered, Accessibility-Aware Interfaces ✨ Cloud & Infrastructure ✅ AWS, Google Cloud & Azure ✅ Serverless Architectures, CI/CD & Deployment Automation Why Enterprises Work With Me ✅ Enterprise Mindset: Security, performance, and scalability built-in ✅ Automation-Driven Delivery: Reduced manual processes & operational risk ✅ Direct Senior-Level Execution: No handoffs, clear accountability ✅ Business & Technology Alignment: Engineering decisions driven by ROI If your organization needs a trusted technical partner to automate operations, implement AI, or build scalable digital platforms, I’m available for long-term collaboration and strategic development engagements. weniger
ayesha86664
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matheussilva114 matheussilva114
$30 USD / Stunde
FULL-STACK ENGINEER| DATA SCIENTIST| AI SPECIALISTBrazilAs a Senior Full-stack developer, Data Scientist and AI/ML Engineer with over 6 years of experience, I specialize in designing, developing, and deploying Software Products with good machine learning solutions. My expertise spans across Machine Learning, Deep Learning, NLP, Computer Vision, and Generative AI,...As a Senior Full-stack developer, Data Scientist and AI/ML Engineer with over 6 years of experience, I specialize in designing, developing, and deploying Software Products with good machine learning solutions. My expertise spans across Machine Learning, Deep Learning, NLP, Computer Vision, and Generative AI, enabling businesses to harness the full potential of AI for automation, insights, and innovation. weniger
matheussilva114
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🚀 I build AI-powered SaaS platforms using OpenAI, LLMs, React, Next.js, and Node.js. If you need a production-ready AI application - RAG system, AI chatbot, OpenAI integration, or scalable SaaS web app - I can architect, build, and deploy it end-to-end on AWS. I focus on real AI systems that scale, not demos. 🧠 AI...🚀 I build AI-powered SaaS platforms using OpenAI, LLMs, React, Next.js, and Node.js. If you need a production-ready AI application - RAG system, AI chatbot, OpenAI integration, or scalable SaaS web app - I can architect, build, and deploy it end-to-end on AWS. I focus on real AI systems that scale, not demos. 🧠 AI & LLM Engineering -OpenAI API Integration -LLM Applications (GPT-based systems) -RAG (Retrieval-Augmented Generation) Architecture -AI Chatbots & Conversational AI -AI Agents & Automation Systems -Embeddings & Vector Databases -Knowledge-Base AI Platforms -LangChain & LLM Pipelines Building intelligent AI systems combined with strong backend architecture. 💻 Full-Stack SaaS Development -React.js Frontend Applications -Next.js (SSR, App Router, API Routes) -Node.js Backend Architecture -TypeScript Development -REST & GraphQL APIs -Secure Authentication (JWT / OAuth) -Multi-Tenant SaaS Platforms -Real-Time Web Applications Clean architecture. Scalable backend. Maintainable code. ☁ Cloud & Infrastructure -AWS Deployment & Scaling -Docker Containerization -Kubernetes Workloads -PostgreSQL / MongoDB -Redis Caching -Microservices Architecture From MVP to enterprise-grade AI SaaS. 🎯 Core Deliverables ✔ AI Chatbot Systems ✔ RAG Applications ✔ OpenAI SaaS Platforms ✔ Full-Stack Web Applications ✔ Cloud-Deployed AI Tools ✔ Automation & AI Workflows weniger
volodymyrd45
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🧠💻🚀 Senior OpenAI & Full Stack & Web Developer 🌎 São Paulo tech pioneer | 50+ blockchain wins | Millisecond crypto swaps 🔥 Rare Expertise Stack: ⚡ Ultra-Low Latency HFT: Python/React.js algos slash trades by 90%—DeFi volume king. 🤖 OpenAI NFT Predictors: GPT vision bots auto-optimize markets (rare freelance edge). 🔗...🧠💻🚀 Senior OpenAI & Full Stack & Web Developer 🌎 São Paulo tech pioneer | 50+ blockchain wins | Millisecond crypto swaps 🔥 Rare Expertise Stack: ⚡ Ultra-Low Latency HFT: Python/React.js algos slash trades by 90%—DeFi volume king. 🤖 OpenAI NFT Predictors: GPT vision bots auto-optimize markets (rare freelance edge). 🔗 Hybrid dApps Live: Solidity/Web3.js + Laravel deploys in 48hrs via GitHub CI/CD. 🛡️ FraudShield AI: OpenAI/MySQL fusion for unbreakable crypto security. 📊 Web3 Dashboards: Three.js visuals + PHP/WordPress/Spring Boot mastery. 💼 50+ Proven Gigs: Smart contract UX to scalable full-stack—no generics. 📈 Ready for your DeFi revolution—bid now, timelines flexible! 🧑💻✨ weniger
hugoc525
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With over 8 years of hands-on experience in software development, I am a seasoned professional with a strong background in full-stack. Front-End Technologies: React.js, HTML5, CSS3, React Native, Flutter, WordPress Back-End Technologies: Node.js, Laravel, Django, FastAPI, Express.js, Convex, Sanity Database...With over 8 years of hands-on experience in software development, I am a seasoned professional with a strong background in full-stack. Front-End Technologies: React.js, HTML5, CSS3, React Native, Flutter, WordPress Back-End Technologies: Node.js, Laravel, Django, FastAPI, Express.js, Convex, Sanity Database Management: SQL, NoSQL, PostgreSQL, MongoDB DevOps & Tools: D AWS, Azure, Stripe What sets me apart is my problem-solving prowess and a proactive, can-do attitude. I thrive in challenging environments where I can bring fresh perspectives and develop cutting-edge solutions. Whether you need a robust application, an intuitive user interface, or seamless system integration, I am committed to delivering exceptional results tailored to your needs. weniger
tobiask5
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allanwackielc8 allanwackielc8
$25 USD / Stunde
Desktop App Dev | C#.NET, ElectronJS & PyQt ExpertPhilippinesI build reliable, scalable, and high-performance desktop applications — from intuitive user interfaces to complex multi-threaded systems — for both startups and enterprises. 🎯 Core Expertise 🔸 Desktop Application Development 🔸 C/C++: STL, Boost, Qt, WinAPI, DirectShow 🔸 C# .NET: Windows Forms, WPF, UWP, .NET Core 🔸...I build reliable, scalable, and high-performance desktop applications — from intuitive user interfaces to complex multi-threaded systems — for both startups and enterprises. 🎯 Core Expertise 🔸 Desktop Application Development 🔸 C/C++: STL, Boost, Qt, WinAPI, DirectShow 🔸 C# .NET: Windows Forms, WPF, UWP, .NET Core 🔸 ElectronJS: Cross-platform desktop apps, Node.js integration 🔸 Python: PyQt, Tkinter, Flask (for desktop apps with a backend) 🔸 UI/UX Design: Modern, intuitive desktop interfaces 🔸 Multi-threading & Concurrency: Boost.Asio, C++ threads, async 🔸 Performance Optimization: Profiling, memory management 🔸 Cross-Platform Apps: Windows, macOS, Linux 🔸 Database Integration: SQLite, MySQL, PostgreSQL 💻 Software Development 🔹 Languages: C/C++, C# .NET, Python, JavaScript (ElectronJS) 🔹 Frameworks & Tools: Qt, .NET Core, Electron, Flask, Tkinter 🔹 Version Control: Git, GitHub, Bitbucket, GitLab 🔹 UI Frameworks: WinForms, WPF, Qt Widgets, QML 🔹 Testing & Debugging: Unit testing, integration testing, CI/CD 🔹 Packaging & Distribution: MSI, DMG, EXE, Snapcraft, AppImage ☁️ Cloud & DevOps ✔️ CI/CD: Jenkins, GitLab CI, Azure DevOps ✔️ Docker: Containerization for cross-platform app deployment ✔️ Cloud Integration: AWS (EC2, S3), Azure (Blob Storage, Functions) ✔️ Automation: Terraform, Ansible, Powershell 🔧 Embedded & Systems ✅ Low-Level Programming: C/C++ on embedded systems ✅ Microcontrollers: STM32, ESP32, Raspberry Pi ✅ Hardware Interaction: GPIO, UART, SPI, I2C ✅ Firmware Development: Device drivers, sensor integration 🚀 Professional Strengths 💠 End-to-End Development: From concept to polished app deployment 💠 Cross-Platform Solutions: Creating apps that run seamlessly everywhere 💠 User-Centric Design: Focusing on user experience in every detail 💠 Performance Optimization: Delivering fast, efficient desktop apps 💠 Agile & Transparent Communication: Keeping you in the loop at every stage 💠 Proven Track Record: Experience with both startups and large enterprises 🔒 I’m a passionate, independent developer, not an agency. 🕒 Available 30+ hours/week, flexible across time zones. Let's build something exceptional together! 💪 Your idea + my expertise = success. 🚀 weniger
allanwackielc8
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