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Ashish S.
$50/hr
100% Job Success
$20K+ earned
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I help companies build, scale, and repair AI and backend systems where performance, payments, and reliability directly affect the business. My work combines AI engineering with backend architecture, API development, databases, cloud infrastructure, and third-party integrations. I can take an AI feature from an early prototype to a secure, maintainable production system. My production experience includes: • Systems handling 4M+ API requests per day • €1.5M+ in monthly payment volume • APIs optimized from approximately 350ms to under 100ms P95 latency • RAG applications, AI chatbots, document-processing pipelines, and AI agents • High-volume webhooks, queues, background jobs, and third-party integrations WHAT I CAN BUILD AI Applications and Integrations • RAG applications using company documents, databases, and private knowledge • AI agents that use APIs, tools, databases, and business workflows • OpenAI, Claude, Gemini, and other LLM integrations • Document extraction, classification, summarization, and structured-data generation • Semantic and hybrid search using PostgreSQL, pgvector, and vector databases • AI chatbots with conversation history, streaming, citations, and tool calling • Evaluation, guardrails, prompt management, logging, and human-review workflows Backend and SaaS Development • Production APIs using Node.js, TypeScript, Python, NestJS, FastAPI, and Django • Multi-tenant SaaS architecture, authentication, permissions, and subscriptions • PostgreSQL database design, indexing, migrations, and query optimization • Event-driven systems, queues, scheduled jobs, retries, and webhook processing • Admin dashboards, customer portals, internal tools, and API integrations • Real-time systems using WebSockets and background processing Payments and Financial Workflows • Stripe Checkout, subscriptions, Connect, payouts, and webhooks • One-time, recurring, marketplace, and split-payment systems • Payment reconciliation, idempotency, retry handling, and failure recovery • Transaction reporting and integration with regional payment providers Cloud and Infrastructure • Cloudflare Workers, Queues, KV, R2, D1, Durable Objects, and Containers • AWS Lambda, API Gateway, S3, CloudFront, RDS, SQS, and EventBridge • Docker, CI/CD, monitoring, logging, caching, and performance optimization • Custom domains, DNS, SSL automation, reverse proxies, and edge routing SELECTED RESULTS • Helped scale backend infrastructure serving more than 4 million API requests per day • Built and maintained payment systems processing approximately €1.5 million monthly • Reduced P95 API latency from approximately 350ms to under 100ms • Built reliable webhook and background-processing systems using queues, retries, logging, and idempotency • Delivered production RAG, chatbot, document-processing, and vector-search features • Designed Cloudflare and AWS infrastructure for scalable SaaS applications COMMON PROJECTS I TAKE ON • Adding AI capabilities to an existing SaaS platform • Building a RAG chatbot using private company data • Developing an AI agent connected to APIs and internal systems • Creating document extraction and processing pipelines • Building the backend for an AI-powered SaaS product • Scaling a slow Node.js, Python, or PostgreSQL application • Repairing unreliable API, webhook, queue, or payment integrations • Migrating APIs and workloads to Cloudflare or AWS serverless infrastructure • Taking over and stabilizing an incomplete backend or AI codebase HOW I WORK I start by understanding the business workflow, available data, current architecture, and the result the AI feature is expected to produce. My work typically includes: • Practical architecture and milestone planning • Maintainable production code • Testing, validation, logging, and error handling • Secure handling of customer and business data • AI output evaluation and failure-case handling • Deployment support and documentation • Clear communication and clean handoff Send me a brief description of your product, current technology stack, available data, and the AI or backend problem you need solved.
Ashish S. has worked .
Sardar D.
$50/hr
100% Job Success
$100K+ earned
Available now
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𝗔𝗜 & 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗕𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗦𝗺𝗮𝗿𝘁, 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗗𝗶𝗴𝗶𝘁𝗮𝗹 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 I help startups, founders, and businesses turn ideas into powerful digital products — from AI-driven applications and automation systems to full-stack web platforms that scale. With strong expertise in Python, JavaScript, React, FastAPI, and modern AI technologies, I build solutions that are fast, reliable, and designed for real-world impact. 𝗪𝗵𝗮𝘁 𝗜 𝗯𝗿𝗶𝗻𝗴 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁: ❇️ AI Voice & Chatbot Development As a specialised AI developer, I build full voice pipelines: Deepgram/Whisper → GPT-4/Claude → ElevenLabs. Expert in chatbot development and conversational business logic for WhatsApp, Telegram, and Web. I work as a dedicated chatbot developer integrating systems with ManyChat, Botpress, and OpenAI API. Modern chatbot development setups to act as a 24/7 sales engine and support lead. ❇️ AI Agent Architecture & Autonomous Workflows I am an AI developer who excels in AI Agent architecture using LangGraph and CrewAI. Multi-AI Agent systems for lead generation, deal tracking, and complex CRM automation. Autonomous AI Agent workflows connected to Slack, Shopify, and enterprise backends. Every AI Agent I build is designed to scale and optimise business processes without increasing headcount. ⚙️ LLM Engineering & Advanced RAG As a senior LLM Engineer, I solve the "hallucination problem" for modern enterprises. Advanced LLM pipelines designed with a focus on Vector Databases (Pinecone, Weaviate, Milvus). Custom fine-tuning, prompt engineering, and production-ready LLM infrastructure. 🛠️ FULL-STACK TECH STACK & DATA SCIENCE As an AI Developer: Python, FastAPI, Docker, AWS, Asyncio. As a Python Developer: LangChain, LlamaIndex, LangGraph, PyTorch. As a Web Developer: Frontend frameworks, responsive platforms, and API integration. As a Data Scientist: Advanced data processing, analytics pipelines, and model evaluation. TECH STACK ───────────────────────────────────── 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: Next.js, React, TypeScript, Tailwind, Redux, React Query, Vite, Angular, Three.js, WebGL, responsive UI 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Python (FastAPI, Django, Flask), Node.js, Express, NestJS, Java (Spring Boot), Go, WebSockets, REST, GraphQL, gRPC 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL, MongoDB, Redis, Supabase, Firebase, DynamoDB, BigQuery, MySQL Cloud & DevOps: AWS (EC2, Lambda, S3, RDS, ECS), GCP, Docker, Kubernetes, GitHub Actions, Terraform, Vercel, Netlify, Nginx, VPS automation, monitoring (Sentry, Datadog) 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: Stripe, PayPal, Twilio, SendGrid, Auth0, OAuth/SSO, GoHighLevel, HubSpot, Salesforce, WhatsApp Business API, webhooks 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Pytest, Jest, Playwright, Cypress 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗺𝗲: • Clean, maintainable code • Fast communication & reliable delivery • Long-term project mindset • Business-focused technical solutions • Available full-time (40–50 hrs/week) Whether you need an AI product, a custom SaaS platform, automation workflows, or a full-stack application, I’m ready to help you build it efficiently. 𝗦𝗲𝗻𝗱 𝗮𝗻 𝗶𝗻𝘃𝗶𝘁𝗲 𝗼𝗿 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 — 𝗹𝗲𝘁’𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗶𝗺𝗽𝗮𝗰𝘁𝗳𝘂𝗹.
Sardar D. has worked .
Andrew T.
$35/hr
100% Job Success
$100K+ earned
Available now
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React Developer and Full Stack Developer who builds custom Web Application product for B2B clients, from interface to backend, production-ready solutions. Most of my work is Full Stack Developer React Node delivery, where a Front end developer React , Node.js backend developer support one business workflow end to end. As a Node.js Developer I own the REST API logic, authentication, roles and permissions, the data layer behind each product. As a Web developer ( MERN stack ) I focus on practical Web Application Development that ships, scales, and stays maintainable, with clean API Integration at the core. ✔️14+ years of professional development experience as Full stack developer ✔️40+ admin panel client portals delivered as React native App developer , Full stack developer React Node ✔️50+ EU and US B2B clients served ✔️60+ SaaS platform, CRM system, dashboard product built ✔️130+ successfully completed projects ✔️200+ REST API integration implemented ✔️React Developer | Full Stack Developer ( Full stack developer AI ) expertise ✔️Experience leading development teams of up to 6 specialists As a React Developer I build Web Application interfaces with React.js, Next.js, TypeScript and Responsive UI , wired to live data through API Integration I deliver usable, fast interfaces. As a Node.js Developer and Backend Developer I build the REST API layer, ExpressJS services, authentication, roles, permissions, payment flows and CRM integration, combining engineering expertise with a UX Designer mindset to take each solution from interface to backend. Many clients come to me as a Node.js Developer when a frontend already exists but the API, the data model, the business logic need to be done right. As a Backend Developer I keep the Node.js layer predictable, documented, as a Node.js Developer I handle the API Integration between third-party services, the database, the frontend. A typical Full Stack Developer React Node project for me looks like this: a SaaS platform or internal business tool with a React frontend, a Node.js backend, a structured database and an admin workflow for the team behind it. On every Full Stack Developer React Node build I design the database structure, the REST API , the dashboards and the permissions model so the product holds up as it grows. This Full Stack Developer React Node approach keeps frontend and backend in one system. Hiring one Full Stack Developer React Node engineer also keeps the React Developer and Node.js Developer decisions consistent across the whole build. I also work as a Directus Developer | Headless CMS Developer . On 20+ content-driven, data-heavy products I use Directus CMS or Strapi as a headless backend, which gives clients a clean admin panel and an API-ready foundation. As a Directus Developer I model the data, set roles and permissions, and connect a React frontend through REST API ; as a Strapi Developer I do the same on Strapi. Headless CMS work with Directus CMS pairs naturally with my React developer firebase, Node.js Developer delivery. Stack I use daily: React, React.js, Next.js, Node.js, TypeScript, JavaScript on the application side; ExpressJS, REST API , API Integration on the service side; SQL, MySQL, MongoDB, Firebase and Supabase for data; Directus CMS | Strapi for headless content. Authentication, roles, permissions, payment flows, dashboards, data tables, filters, admin workflows are standard parts of how I deliver Web Application Development . How I work on a Full Stack Developer React Node Discovery and scope first Architecture, backlog Design if needed Development in sprints QA Production release Support after launch. As a Web Developer and JavaScript Developer I write code the next developer can actually read and extend. Typical projects clients hire me for: SaaS platform development, CRM development, admin panel, marketplaces, booking website, lead generation website, dashboard, client portal, internal business tools, e-commerce platform and API-based Web Application work with workflow automation and business automation. Clients also find me under related searches that match my real stack. ⚛️ React developer side: React Native Developer React next js developer ( nextjs ) Full Stack Developer Supabase React Front-End Developer Full-Stack ⚙️ Full stack developer side: Python Full Stack Developer Full Stack Developer AI Full Stack Developer Shopify Full stack React Native Spring Boot Full Stack Node.js React Senior Full Stack Developer Senior Full stack .net 🗄️ Backend developer side: Node.js Backend Developer Back End Developer Node.js Python Developer 🔧My additional expertise: WordPress Developer , Mobile App Developer , Vue Angular, Strapi developer, Stripe , Agile Software Development 💡If you need a React Developer | Full Stack Developer React Node engineer | Node.js Developer for a serious product, I can take it from architecture through release and support. Let's talk about your product and what it needs to do.
Andrew T. has worked .
Jalpesh R.
$22/hr
98% Job Success
$900K+ earned
Available now
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I’m a Senior AI Engineer with 9+ years of experience building and scaling AI-powered and Voice-enabled products that deliver measurable business results. I focus on integrating proven, cost-efficient AI solutions into existing systems instead of over-engineering from scratch. This helps teams ship faster, control costs, and deploy AI features that work reliably in production. 𝐖𝐡𝐲 𝐀𝐈 𝐚𝐧𝐝 𝐕𝐨𝐢𝐜𝐞 𝐀𝐈 𝐌𝐚𝐭𝐭𝐞𝐫 ● Stay competitive by automating workflows and improving customer interactions ● Future-proof your product with AI-driven features that are becoming standard ● Scale efficiently without increasing operational overhead 𝐇𝐨𝐰 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 Whether you’re building an AI or Voice chatbot, launching an AI-powered SaaS MVP, or enhancing an existing platform with LLM-based features, I can take your idea from architecture to production. 𝐈 𝐛𝐮𝐢𝐥𝐝: ● Clean, intuitive React-based interfaces for web applications ● Secure, scalable AI-enabled backends using Python and Node.js ● Fast, reliable APIs and data pipelines designed for growth 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐀𝐈, 𝐋𝐋𝐌 & 𝐕𝐨𝐢𝐜𝐞 𝐀𝐈 ● LLM integrations, RAG systems, conversational AI ● Voice AI agents using speech-to-text and text-to-speech pipelines ● AI automation, analytics, and intelligent workflows 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 ● Python (Django, FastAPI, Flask), Node.js (Nest.js, Express) ● Scalable APIs, system architecture, and AI integration 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 & 𝐒𝐚𝐚𝐒 ● React, Next.js, modern UI for AI dashboards and SaaS products 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 ● AWS, Azure, Docker, Kubernetes, CI/CD pipelines 𝐑𝐞𝐜𝐞𝐧𝐭 𝐀𝐈 𝐖𝐨𝐫𝐤 ● AI Voice Agent for automated customer interactions ● Healthcare platforms enhanced with AI workflows ● Sports analytics and prediction systems using AI I focus on senior-level ownership, clear communication, and AI solutions that work reliably in production. 💬 Let’s discuss how AI or Voice AI can give your product a real edge.
Jalpesh R. has worked .
Albiorix Technology Pvt. Ltd
Associated with
Albiorix Technology Pvt. Ltd
Jai Vikram Singh V.
$50/hr
100% Job Success
$400K+ earned
Offers consultations
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I'm an AI-focused Software Architect with 18+ years of experience delivering scalable, production-grade web and mobile applications using Python, Django, ReactJS, React Native, Flutter and modern AI/LLM integrations. I specialize in helping product owners and businesses turn complex ideas into robust, maintainable, and scalable software—often leading the architecture, hiring, and development workflows end-to-end. My recent work includes: AI-powered SaaS platforms using LLMs (OpenAI, LLaMA) for document processing, formatting audits, and generative AI workflows Workflow automation engines built with Django and React for e-commerce and logistics platforms Full-stack web and mobile applications with rich dashboards, real-time collaboration using WebSockets, and cloud-native deployment on AWS with CI/CD System architecture and team setup for startups scaling to full-fledged products I don't just write code—I align technical execution with your business goals and ensure long-term maintainability and success. Whether you're building an AI MVP or scaling an existing platform, I bring clarity, accountability, and senior-level ownership from day one. Let’s discuss how I can help you ship faster and smarter.
Jai Vikram Singh V. has worked .
Volodymyr K.
$50/hr
100% Job Success
$300K+ earned
Available now
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AI Developer Top-rated Plus (Upwork Top 1%) AI Agents, Generative AI & Full Stack Development I help companies as AI Developer design, validate, and ship AI products fast, with a strong focus on AI Agents, Generative AI, and proAI Developer (Upwork Top 1%) AI Agents, Generative AI & Full Stack Development 8+ Years in AI & Machine Learning — production systems, not prototypes 50+ AI Products Delivered — from MVP to enterprise scale Top 1% AI Developer on Upwork AI MVPs shipped in 4–8 weeks — structured delivery, no overengineering HIPAA / SOC2 / GDPR-ready AI systems Full-cycle delivery — architecture, development, deployment, and optimization Trusted by teams in Healthcare, FinTech, Logistics, Real Estate, and E-commerce As a Senior AI Developer and Full Stack Software Engineer, I build production-ready Generative AI applications, custom AI Agents, and scalable machine learning systems. With 8+ years in Machine Learning and software architecture, I work as an AI Developer, AI Engineer, and Full Stack Developer. Together with Indeema, a full-cycle AI and custom software company, I lead teams that turn AI strategy into deployed systems, from data pipelines and LLM orchestration to scalable backend architecture and enterprise integrations. Proven track record with a 100% Job Success Score Consistently earning 5★ client feedback 8+ years building production-ready AI systems Clean, scalable, and enterprise-grade architecture From idea to deployed MVP in 4–8 weeks My structured delivery approach takes products from idea to working MVP in 4–8 weeks. AI Agent Consulting & Delivery I consult and implement agentic AI systems that observe, reason, and act across business workflows: AI Agents & Autonomous Workflows LLM-powered Products and Copilots RAG Systems and Knowledge AI AI Orchestration Architectures AI Integration into existing platforms AI MVP validation and architecture design My approach combines strategy, architecture, and delivery helping companies avoid costly overengineering and ship production-ready AI faster. What I Deliver AI Agent for Document Management AI Agent for Real Estate AI Agent for Inventory Management AI Agent for Fintech and Financial Management AI Agent for Medical Clinics and Image Analysis AI System for Advanced Analytics Agentic AI System Design Generative AI Development Machine Learning and Predictive Analytics AI App Development and Automation NLP, Computer Vision, and Data Science Enterprise AI Integration and Modernization I work across Healthcare, FinTech, Logistics, Real Estate, and E-commerce, building systems that improve operations, reduce manual work, and unlock new revenue streams. AI MVPs in 4–8 weeks using a structured delivery methodology HIPAA / SOC2 / GDPR-ready solutions AI integration with ERP, CRM, and legacy systems Dedicated AI teams and fractional CTO leadership ⚙️ Technologies Python, TensorFlow, PyTorch, LangChain, LLM APIs (OpenAI, Claude, Gemini), AWS SageMaker, Vertex AI, Docker, Kubernetes, MLOps pipelines, vector databases, real-time AI systems. If you’re looking for a partner who can design the right AI solution and actually ship it, let’s talk.
Volodymyr K. has worked .
Indeema AI
Associated with
Indeema AI
$1M+
earned
Hassan Z.
$30/hr
100% Job Success
$30K+ earned
Available now
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💲7M ARR B2B SaaS platform scaled in 2026. 🏆Top 3% SaaS AI Developer (Expert) 🤗 Immediate to start & Flexible to work Tech founders and CTOs hire me, a results-driven AI Engineer and Backend Developer, when they need to transition an unpredictable AI prototype into a secure, scalable, production-grade system. Most AI projects stall because developers build fragile prompt wrappers that break under real-world traffic. As a senior AI Engineer, I specialize in building robust Python backends, autonomous multi-agent architectures, and deterministic software engines designed to run reliably at scale. My AI systems are engineered for production, not demos. Over the past eight years, I have engineered and deployed technical systems that translate directly into business value. As a Backend Developer and AI Engineer, I designed a cross-industry MVP in 2021 for the healthcare, real estate, and fintech sectors that successfully scaled into a commercial B2B SaaS platform currently generating over $7M in recurring ROI per annum, proof that strong Python-driven architecture and disciplined AI engineering deliver real outcomes. 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗚𝗲𝘁 𝗪𝗵𝗲𝗻 𝗪𝗲 𝗪𝗼𝗿𝗸 𝗧𝗼𝗴𝗲𝘁𝗵𝗲𝗿 • Production AI & RAG Pipelines: As a dedicated AI Engineer, I implement advanced Retrieval-Augmented Generation (RAG) pipelines using custom chunking strategies, token optimization, prompt caching, and hybrid semantic search via OpenAI and Claude APIs. Every RAG system I build is optimized for accuracy, speed, and cost efficiency. • Autonomous Multi-Agent Systems: Multi-step orchestration workflows built with LangChain, AutoGen, and MCP (Model Context Protocol) to handle continuous background monitoring and complex data execution, core capabilities every modern Backend Developer specializing in AI must master. • High-Performance Backend Architecture: Fast, asynchronous REST APIs engineered with Python and FastAPI, keeping your probabilistic AI outputs strictly separated from exact financial or relational database logic. Clean Python architecture is non-negotiable at scale. • Enterprise Infrastructure & MLOps: Containerized deployments using Docker, automated Infrastructure-as-Code (IaC) via Terraform, and continuous integration pipelines with GitHub Actions across AWS and Azure AI Foundry, built to support enterprise SaaS operations end to end. • Full SaaS Core Frameworks: Secure relational database modeling (PostgreSQL, Supabase, SQL Server), OAuth/JWT authentication (Clerk, NextAuth), and multi-tenant subscription mechanics using Stripe, the complete SaaS stack, fully production-hardened. 𝗪𝗵𝘆 𝗜 𝗔𝗺 𝘁𝗵𝗲 𝗥𝗶𝗴𝗵𝘁 𝗙𝗶𝘁 𝗳𝗼𝗿 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 • Trench-Tested Technical Ownership: Having spent over eight years working between business clients and core development teams as both AI Engineer and Backend Developer, I don't need hand-holding. I design the database schemas, analyze response latencies, and minimize api token burn rates out of the box. • Security & Compliance Frameworks: I understand how to handle AI data pipelines under strict operational guardrails, including HIPAA compliance and PHI data protection for healthcare SaaS software, and SOC2 readiness for fintech operations. • Clean, Enterprise-Ready Deliverables: Every Python-engineered system I deploy features comprehensive automated testing (Unit/E2E), explicit error trapping, and structured operational runbooks so your internal engineering team can scale it smoothly. • Full-Stack Fluency: While my core domain is AI backend engineering, optimization, and MLOps, my proficiency as a Backend Developer with React and Next.js ensures absolute alignment across your front-end asset publishing and user journey layouts , critical for polished SaaS products. Whether your platform requires deep document intelligence with RAG and OCR pipelines, local open-source model serving via vLLM and llama.cpp, or deep third-party integrations with travel GDS, WhatsApp Business, or Meta/Google Ads APIs, as your trusted Backend Developer and senior AI Engineer, I build it to last in Python. 𝗟𝗲𝘁'𝘀 𝘀𝗲𝘁 𝘂𝗽 𝗮 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗮𝗹𝗶𝗴𝗻𝗺𝗲𝗻𝘁 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗮𝘂𝗱𝗶𝘁 𝘆𝗼𝘂𝗿 𝗰𝘂𝗿𝗿𝗲𝗻𝘁 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲, 𝗶𝘀𝗼𝗹𝗮𝘁𝗲 𝘆𝗼𝘂𝗿 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗯𝗼𝘁𝘁𝗹𝗲𝗻𝗲𝗰𝗸𝘀, 𝗮𝗻𝗱 𝗺𝗮𝗽 𝗼𝘂𝘁 𝘁𝗵𝗲 𝗱𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁 𝘀𝘁𝗲𝗽𝘀.
Hassan Z. has worked .
Muneeb A.
$28/hr
100% Job Success
$400K+ earned
Available now
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🥇 Top Rated Senior Full Stack Developer ⭐ 5-Star Ratings | ✅ Verifiable projects | ❇️ 6,000+ Hours | 100% refund if I set the wrong expectation and can’t deliver. No questions asked! I help startups and SaaS companies build fast, scalable, and reliable software. Whether you're a small business, nonprofit, or growing startup, I’ve worked with teams of all sizes to turn ideas into solid, high-performing applications. I bring both technical and strategic value. I can help you select the right technology stack, design scaleable systems, manage the product from start to finish, build and lead strong dev teams, and forecast timelines and keep budgets on track. Whether it's kicking off a brand-new project, fixing one that's gone off track, or scaling to support millions of users, my past experience has equipped me for your challenge. I proficiently utilize AI tools such as Cursor, GitHub Copilot etc to increase productivity and improve development. **Expertise includes: AI Automations: n8n Automation – Custom workflow design, API integrations and process optimization. Back-End: - Python: Django, FastAPI, Flask - Javascript: Next.js, Node.js, Nest.js, Express.js Front-End: - HTML, CSS, Tailwind, Bootstrap - Javascript: React, Next.js Angular, Vue.js, Grape.js - API Integration: REST, GraphQL, SOAP, MCP Databases: - MySQL, PostgreSQL, MongoDB, SQLite, Cassandra, MariaDB, Google BigQuery, Neo4j - Payment Gateways Integration: Stripe, PayPal, 2Checkout, Braintree, etc. - Server Setup & DevOps: Amazon Web Services Heroku Google Cloud Console Setting up CI/CD pipelines Industries I've worked with: 🔸 AI SaaS | Marketing Tech | Healthcare | eCommerce | Fintech | Customer Support | Real Estate 2024 onwards helping startups integration AI and develop efficient cost effective Generative AI solutions. - Implementing RAG - AI Agents or Chatbot Development - Finetuning LLMs - Reinforcement Learning from Human Feedback (RLHF) - Vector Databases Efficient data handling for AI and machine learning.
Muneeb A. has worked .
ESketchers
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ESketchers
Irtaza H.
$40/hr
100% Job Success
$60K+ earned
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I have 7+ years of experience and have successfully launched numerous AI and SaaS products. I focus on creating scalable, high-performance applications and integrating advanced AI solutions. 💻 Core Skills - Python & Frameworks: Django, Flask, FastAPI - JavaScript & Frontend: React.js, Next.js, Node.js, NestJS - Databases: MongoDB, PostgreSQL, MySQL, SQL Server - Data Science & AI: Machine Learning (TensorFlow, PyTorch), Data Analysis (NumPy, Pandas), LLM & Chatbot Integration (OpenAI GPT, LangChain) - Other Technologies: .NET, C#, REST APIs, Cloud (AWS, Azure) 🏆 Achievements - Improved the backend with a new download feature, which increased performance by 10%. - Automated network module processes, enhancing connectivity by 15%. - Delivered AI-driven features that improved user experience and client efficiency. ✅ Why Choose Me - I have a strong background in software engineering, AI, and full-stack development. - I can clearly convert business needs into technical solutions. - I communicate well, keeping technical and non-technical stakeholders informed. - I focus on collaboration, transparency, and delivering value on time. 🔹 If you need a skilled developer to build web apps, integrate AI, and achieve results, let’s connect and make your project successful!
Irtaza H. has worked .
Martin A.
$80/hr
$20K+ earned
Offers consultations
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✅ Expert-Vetted Developer | Digital Solutions Architect | Founder of Apptimist Studio Helping startups and scaling businesses build world-class digital products with speed, strategy, and confidence. **** About Me**** I'm a product-focused software engineer and systems architect with over a decade of experience helping teams bring their digital ideas to life. I lead Apptimist Studio, a product development studio that partners with early-stage and scaling companies to build high-quality, scalable web and mobile applications. Whether you're launching your MVP, rebuilding an outdated platform, or need a fractional CTO to guide your tech decisions—I can help. ****What I Do**** ✅ I work with founders, product teams, and agencies to: - Build MVPs or complete products from scratch - Act as an outsourced CTO or technical co-founder - Translate business goals into clear, executable development plans - Lead and manage remote product teams - Set up scalable, cloud-native infrastructure - Improve code quality, security, and system reliability ****Core Expertise**** ✅ Product Strategy & Ownership - Defining, prioritizing, and delivering product features with a user-first mindset ✅ Custom Web Application Development - Python, Django, PostgreSQL, Docker, ECS ✅ Cloud & Infrastructure Architecture - AWS (Certified Cloud Practitioner), EC2, ECS, S3, CloudFormation, Terraform ✅ DevOps & Automation - CI/CD, Kubernetes, containerized environments, scalable backend workflows ✅ System Design & Data Architecture - Secure, API-first, modular systems for long-term growth ✅ UX/UI Oversight - Working alongside in-house designers and researchers to ensure product-market fit. While I personally focus on strategy, systems, and technical leadership, I work closely with our in-house expert UX/UI designers and developers to deliver seamless, user-centered experiences across web and mobile platforms. If awarded a UX/UI project, I’d bring in one of our senior UX/UI specialists to collaborate with me and ensure we cover all bases — from user research and wire-framing to pixel-perfect UI design and implementation. This means you get a cohesive, end-to-end team without the hassle of managing multiple freelancers. ****Selected Work**** I’ve worked with global corporations, fast-growing startups, and everything in between. ****Highlights include**** ✅ Thrive Circle – Infrastructure and backend for a US wellness app ✅ SPAR - E-commerce platform for modernised in-store, self-checkout grocery shopping ✅ ZIM Connections – Global eSIM tech platform with complex onboarding flows ✅ Muzeo Treats – Full custom e-commerce build for gourmet gifting ✅ Nescafé É (Nestlé) – Internal innovation portal for global teams ✅ Tamarack Idaho – Resort booking tools and mobile feature development ✅ European Bank (Confidential) – Data pipelines and secure cloud systems ✅ Industry 4.0 Digital Tools – Manufacturing optimization for Italy & Slovenia ✅ IoT Security Projects – Secure prototyping with MircoSec in Singapore ****About Me**** I hold a Master’s degree in Engineering of Computing Systems from Politecnico di Milano and am a Certified AWS Cloud Practitioner. I'm also the author of On Understanding the Causes of Software Defectiveness, a book focused on improving software quality and reliability. Over the years, I've worked with Forbes 200 companies such as Accenture, Pirelli, and Spar, as well as numerous startups across Europe, the U.S., and Asia. ****Why Clients Choose Me**** ✅ I combine deep technical expertise with clear product thinking ✅ I communicate openly, proactively, and with transparency ✅ I lead projects with structure, accountability, and a focus on business outcomes ✅ I offer long-term partnerships—not just code drops If you're looking for a reliable technical partner who understands both engineering and product strategy, let's talk. I’d be happy to learn more about your project and see how I can help.
Martin A. has worked .
Apptimist Studio
Associated with
Apptimist Studio
$300+
earned