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Onkar K.
$30/hr
100% Job Success
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Senior Full-Stack & AI Engineer | SaaS Architect 𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 & 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝘄𝗶𝘁𝗵 𝟭𝟬+ 𝘆𝗲𝗮𝗿𝘀 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗦𝗮𝗮𝗦 𝗮𝗻𝗱 𝗔𝗜 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀. 𝗘𝘅𝗽𝗲𝗿𝘁 𝗶𝗻 𝗢𝗽𝗲𝗻𝗔𝗜, 𝗚𝗣𝗧-𝟰, 𝗥𝗔𝗚, 𝗡𝗼𝗱𝗲.𝗷𝘀, 𝗝𝗮𝘃𝗮, 𝗔𝗪𝗦, 𝗮𝗻𝗱 𝗺𝘂𝗹𝘁𝗶-𝘁𝗲𝗻𝗮𝗻𝘁 𝗰𝗹𝗼𝘂𝗱 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲𝘀. --- I help startups and growing businesses 𝗱𝗲𝘀𝗶𝗴𝗻, 𝗯𝘂𝗶𝗹𝗱, 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗲 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗿𝗲𝗮𝗱𝘆 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 𝗮𝗻𝗱 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀. I’m a 𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝗮𝗻𝗱 𝗦𝗮𝗮𝗦 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁 with 𝟭𝟬+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗵𝗮𝗻𝗱𝘀-𝗼𝗻 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 delivering high-quality software across logistics, fintech, ed-tech, and AI-driven products. I don’t just code features—I design 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝘁𝗵𝗮𝘁 𝘀𝗰𝗮𝗹𝗲, 𝘀𝘁𝗮𝘆 𝘀𝗲𝗰𝘂𝗿𝗲, 𝗮𝗻𝗱 𝘀𝘂𝗽𝗽𝗼𝗿𝘁 𝗿𝗲𝗮𝗹 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗴𝗿𝗼𝘄𝘁𝗵. I work end-to-end: 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲, 𝗯𝗮𝗰𝗸𝗲𝗻𝗱, 𝗳𝗿𝗼𝗻𝘁𝗲𝗻𝗱, 𝗔𝗜 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻, 𝗰𝗹𝗼𝘂𝗱 𝗱𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁, 𝗮𝗻𝗱 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻. --- 🤖 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 & 𝗟𝗟𝗠 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 (𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗚𝗿𝗮𝗱𝗲) I actively build 𝗔𝗜-𝗳𝗶𝗿𝘀𝘁 𝗦𝗮𝗮𝗦 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀, not prototypes or demos. 𝗔𝗜 & 𝗟𝗟𝗠 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: • OpenAI (GPT-4, GPT-4o), Claude, Gemini • RAG (Retrieval-Augmented Generation) architectures • Vector databases: pgvector, Pinecone • AI agents, copilots, and automation workflows • Prompt engineering & AI cost optimization • Secure, scalable AI API integrations 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱 𝘄𝗶𝘁𝗵 𝗔𝗜: • LLM-powered SaaS features • Document AI (PDF ingestion, embeddings, semantic search, summarization) • Knowledge retrieval & decision-support systems • AI coaching, recommendation, and analytics engines • Usage-metered AI services for SaaS products All AI systems are 𝘀𝗲𝗰𝘂𝗿𝗲, 𝗼𝗯𝘀𝗲𝗿𝘃𝗮𝗯𝗹𝗲, 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲, 𝗮𝗻𝗱 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗿𝗲𝗮𝗱𝘆. --- 🎯 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗪𝗶𝘁𝗵 𝗦𝗮𝗮𝗦 & 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • Multi-tenant SaaS architecture • REST API design & development • Backend systems using Node.js and Java Spring Boot • Authentication, RBAC, subscriptions & billing • High-throughput, event-driven, async systems 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 & 𝗠𝗼𝗯𝗶𝗹𝗲 • React, Next.js, Vue.js web applications • SaaS dashboards & admin panels • Android, Flutter, Ionic mobile apps 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀 • AWS (Lambda, API Gateway, SQS, S3, ECS) • GCP & DigitalOcean • Serverless & cloud-native architecture • Docker & CI/CD pipelines • Production deployment, scaling & monitoring --- 🛠️ 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 • Java, Node.js, JavaScript, TypeScript, PHP • OpenAI, GPT-4, GPT-4o, RAG, pgvector, Pinecone, Elasticsearch • React, Next.js, Vue.js • PostgreSQL, MySQL, MongoDB, Firestore, Redis • Kafka, AWS SQS, SNS, RabbitMQ • AWS, GCP, DigitalOcean, Docker, CI/CD, Serverless ---
Gagandeep G.
$55/hr
100% Job Success
$800K+ earned
Available now
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✅Over 180 projects, 100% rating with $800K+ earned on Upwork I architect and develop enterprise-grade software applications, MVPs and AI-powered SaaS products across web and mobile. With 20+ years of full-stack development experience, I support global enterprises and startups in developing premium software solutions that are reliable and future-ready. My expertise covers system architecture, full-stack development, database design and API development. I design and deploy production-grade systems that combine modern software engineering with Generative AI, LLM and machine learning capabilities where they deliver measurable business impact. ✔️𝐂𝐨𝐫𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬: • Architect and deliver custom MVPs for startups launching their first product versions. • Develop production-grade CRM platforms and internal business systems. • Design and build AI-native SaaS platforms, subscription-based products and intelligent business solutions. • Develop AI agents, agentic workflows and business process automation solutions. • Build RAG pipelines, knowledge systems and enterprise AI platforms powered by advanced prompt engineering. • Modernize and extend existing applications including legacy web and mobile codebases. • Design, deploy, and optimize cloud-native infrastructures that support long-term scale, security, and reliability. • Build API layers and service architectures for SaaS, multi-tenant and enterprise platforms. • Engineer new systems from scratch, establishing clean architectures for long-term scalability. ✔️𝐓𝐫𝐚𝐜𝐤 𝐑𝐞𝐜𝐨𝐫𝐝: • Developed 180+ custom software solutions, web applications and AI-powered products. • Implemented AI agents and LLM-powered workflows that reduced manual processes by up to 80%. • Delivered AI-powered business automation systems cutting operational costs by 40% • Maintained a 100% client success rating in collaborations with startups and enterprise teams. • Collaborated with 30+ enterprise clients on long-term projects of high complexity. • Supported multiple founders through MVP stages across 20+ industries. I support organizations throughout the software lifecycle, helping teams design, build, modernize, deploy and scale applications that remain reliable as business requirements evolve. I am experienced building and deploying APIs and AI agents while ensuring every system aligns with enterprise compliance standards. If you're planning to develop an AI-native product, modernize existing systems or deploy intelligent automation, I'd be happy to discuss your objectives and evaluate the most effective path forward. _____________________________________________________________________________ ✔️𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐲 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞: E-Commerce & Retail | Healthcare | FinTech | EdTech | Logistics & Supply Chain | Mobility & Transport | Real Estate (PropTech) | LegalTech | Travel & Hospitality | Cybersecurity | AI/ML & Data Analytics ✔️𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 & 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬: Multi-Tenant SaaS | AI SaaS |Cross-Platform Mobile App | Booking & Scheduling Platform | AI Tool | Learning Management System (LMS) | Electronic Health Records (EHR) | Inventory Management System | ERP | CRM | Customer & User Portal | Marketplace Platform| Cloud-Native Application | MVP & Prototype | Workflow Automation System | API-Driven Backend | Admin & Analytics Dashboard ✔️𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞: HIPAA | GDPR | ISO 27001 | HL7 | FHIR | EHR/EMR | OAuth2 | JWT | MFA/2FA | RBAC | ABAC | API Security | Audit Logs | Multi-Tenant Isolation ✔️𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤: • Front-End Development: React, Next.js, TypeScript, JavaScript, Vue.js, Angular, HTML, Tailwind CSS • Back-End Development: Node.js (Express.js), Python, PHP (Laravel), NestJS • Mobile App Development: React Native (Expo), Flutter • Database Management: MySQL, PostgreSQL, MongoDB, Firebase, MSSQL Server, AWS RDS • API Integration: RESTful APIs, REST, SOAP, FastAPI, GraphQL, OpenAPI, WebSockets • Third-Party APIs: Social Media API, Payment Gateway, Twilio, SendGrid, Mailchimp, Whisper • AI/ML: LLMs, AI Agents, LangChain, OpenAI API, Claude, ChatGPT, CursorAI, Generative AI, GPT Integration • Cloud: AWS (EC2, S3, Lambda, CloudFront, SES, SQS, SNS, CloudTrail, ElastiCache, Elasticsearch) • DevOps: Docker, Kubernetes, GitHub Actions, Jenkins, CI/CD Pipelines, Containerization • Testing Tools: Jest, Mocha, Chai, Cypress, Selenium • Version Control: Git, GitHub
Yurii K.
$40/hr
100% Job Success
$80K+ earned
Available now
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Python Django full stack developer specializing in SaaS MVPs and fintech platforms - 14 production-ready SaaS MVPs delivered in 4 to 6 weeks across fintech, expense management, and AI-powered web applications. I build scalable web applications that go from idea to working product fast: Django REST databases, and OpenAI API integrations. My focus is on clean architecture that's easy to maintain and extend - not overengineered, not held together with duct tape. My core work covers full stack SaaS development from MVP to production, multi-tenant SaaS architecture, Django and FastAPI backends with role-based access and authentication, subscription and payment integration, React and Node.js frontends, AI integrations using OpenAI API and Google Document AI, and cloud infrastructure on AWS with Docker. How I work: I start by mapping exact requirements and proposing a tech stack that fits your timeline and budget. I move fast, communicate clearly, and deliver working software - not just code. Every project includes documentation and handover so your team can take ownership after launch. Recent work: Built an AI-powered check scanning feature for Spendbase, a B2B expense management SaaS platform based in Delaware. Using Python and Google Document AI, we automated data extraction from paper checks and integrated it into their existing expense workflow - delivered on a tight deadline with full documentation and zero disruption to the live platform. If you need a production-ready SaaS MVP, a Django backend with AI integration, or a reliable Python full stack partner for the long term, let's talk.
Inspirit Dev
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Inspirit Dev
$100K+
earned
$20/hr
100% Job Success
$10K+ earned
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𝑭𝒓𝒆𝒆 30-𝑴𝒊𝒏𝒖𝒕𝒆 𝑪𝒐𝒏𝒔𝒖𝒍𝒕𝒂𝒕𝒊𝒐𝒏 𝑪𝒂𝒍𝒍! 𝑱𝒖𝒔𝒕 𝒔𝒉𝒂𝒓𝒆 𝒚𝒐𝒖𝒓 𝑭𝒊𝒈𝒎𝒂 𝒐𝒓 𝑰𝒅𝒆𝒂𝒔, 𝐈 𝒘𝒊𝒍𝒍 𝒄𝒐𝒏𝒗𝒆𝒓𝒕 𝒕𝒉𝒂𝒕 𝒊𝒏𝒕𝒐 𝒂 𝒅𝒆𝒕𝒂𝒊𝒍𝒆𝒅 𝑹𝑭𝑸 𝒂𝒏𝒅 𝒅𝒆𝒇𝒊𝒏𝒆 𝒕𝒉𝒆 𝑺𝒄𝒐𝒑𝒆 𝑺𝒐 𝒚𝒐𝒖 𝒄𝒂𝒏 𝒈𝒆𝒕 𝒂 𝒃𝒆𝒕𝒕𝒆𝒓 𝑰𝒎𝒂𝒈𝒆. 🌟 Expert Full-Stack Python/Django & React.js/Next.js Development 🌟 I help businesses and startups build scalable SaaS platforms, cloud-based web applications, custom APIs, and high-performance MVPs. My services cover end-to-end web development, including Full-Stack Web Application Development, AWS Cloud Integration, Custom API Development, Database Design & Optimization, and SEO-optimized Next.js websites. Whether you need a SaaS dashboard, a subscription-based product, or a secure backend system that scales, I deliver modern, production-ready solutions built on industry best practices. I also specialize in web app performance tuning, security hardening, and architecture consulting to help clients transform existing systems into fast, reliable, and cloud-native applications. ⚙️ 𝘾𝙤𝙧𝙚 𝙎𝙚𝙧𝙫𝙞𝙘𝙚𝙨 1️⃣ SaaS & Full-Stack Web Development • React.js / Next.js front-end + Python/Django back-end • Subscription systems, dashboards, multi-tenant apps 2️⃣ AWS Cloud Integration & Management • EC2, Lambda, S3, CloudFormation setup and automation • CI/CD pipelines and monitoring • Scalable cloud architecture for SaaS apps 3️⃣ Custom API Development & Integration • REST & GraphQL APIs with Django REST Framework • Third-party SaaS integrations (Stripe, SendGrid, Auth0) • Secure authentication / authorization (JWT, OAuth2) 4️⃣ Database Design & Optimization • PostgreSQL, MySQL, MongoDB, Redis • Query optimization & data modeling for performance • Backup, migration, and security hardening 5️⃣ JavaScript / TypeScript Expertise • Modular, component-based development • Type-safe architecture & frontend performance tuning • Integration with Python APIs for real-time apps 6️⃣ Next.js & React.js for SEO Optimization • Server-Side Rendering (SSR) and Static Site Generation (SSG) 7️⃣ MVP Development for Startups • Rapid prototyping with React.js / Django • AI integration and development into MVP 8️⃣ Web App Performance & Security Optimization • Speed audits, caching, and load-time reduction 🧠 𝑻𝒆𝒄𝒉 𝑺𝒕𝒂𝒄𝒌 • Frontend: React.js, Next.js, TypeScript, Redux, TailwindCSS • Backend: Python, Django, FastAPis Django REST Framework • Database: PostgreSQL, MySQL, MongoDB, Redis • Cloud & DevOps: AWS (EC2, S3, Lambda, CloudFormation), Docker, GitHub Actions • Others: REST API, GraphQL, SEO Optimization, CI/CD, SaaS Architecture, Security Audits Contact me, and let’s discuss how we can take your project to new heights and achieve your business goals.
Muhammad A.
$35/hr
97% Job Success
Available now
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I build AI-powered SaaS platforms, automation systems, and full stack web apps that ship fast and scale reliably. With 10+ years of experience across Python, Node.js, React, and LangChain , I help startups launch and businesses grow without sacrificing architecture or quality. I build faster using modern AI-powered dev tools . delivering production-ready apps in significantly less time without compromising on code quality or architecture. Cursor · Lovable · Bolt.new · v0 by Vercel · Claude (Anthropic) GitHub Copilot · Windsurf · Replit Agent I focus on building scalable systems with strong architecture, clean performance, and AI-driven automation that delivers long-term business value. CORE SPECIALIZATIONS : ✅ AI & SaaS Systems AI-powered SaaS platforms using OpenAI (GPT-4/4o), Assistants API, and LLM-based workflows for automation, content generation, and intelligent product features. ✅ Automation & Data Systems Automation pipelines, web scraping systems, and data processing workflows using Python, Node.js, and async task queues for scalable business operations. ✅ Chatbots, AI Agents & Digital Twins Conversational AI systems and multi-agent architectures using OpenAI, Claude, and LangChain — from customer-facing chatbots and RAG-powered knowledge assistants to autonomous AI agents that plan, reason, and execute multi-step workflows. Digital twin implementations for simulating real-world systems, processes, and entities with live data synchronization and predictive modeling. ✅ Full Stack Web Development Modern web applications using React, Next.js, MERN stack, and Python-based backends with scalable API architecture and clean system design. ✅ Mobile Applications React Native apps with real-time features, API integration, push notifications, and AI-driven functionality for iOS and Android. ✅ Real-Time & Media Systems WebSockets, WebRTC, FFmpeg-based video processing, and real-time streaming applications for scalable communication and media platforms. ✅ Enterprise Systems Custom dashboards, CRMs, ERPs, marketplaces, and API integrations designed with scalable architecture and modular backend systems. ✅ Extensions & API Architecture Chrome extensions with automation features, REST & GraphQL APIs, microservices, and event-driven architecture for modern distributed systems. AI & AUTOMATION: AI-powered systems using OpenAI (GPT-4/4o, Assistants API, Vision, Whisper, TTS) for intelligent applications, automation workflows, and data-driven features. LangChain, LlamaIndex, AI Agents, OpenClaw , RAG pipelines, and prompt engineering for building context-aware AI systems. Vector databases like Pinecone, Weaviate, and ChromaDB for semantic search and knowledge-based AI applications. Web scraping & automation pipelines using Playwright, Puppeteer, Scrapy, BeautifulSoup, and Selenium for data extraction and process automation. Background processing & data workflows using Celery, Redis queues, and async task systems. Browser automation and headless workflows for large-scale data operations and business automation systems. FRONT-END: React.js, Next.js 14 (App Router, SSR, SSG, ISR), TypeScript, and modern JavaScript (ES6+) UI development using Tailwind CSS, Material UI, ShadCN, and Framer Motion for scalable SaaS interfaces. State & data management using Redux Toolkit, Zustand, React Query, SWR, and Context API. Real-time frontends using WebSockets, GraphQL clients, and PWA architecture. BACK-END: Python (FastAPI, Django, DRF, Flask) for scalable APIs and backend systems. Node.js (NestJS, Express, Fastify) for microservices, real-time APIs, and scalable backend architecture. Authentication systems using JWT, OAuth2, Auth0, Clerk, Supabase Auth, and Passport.js. API architecture including REST, GraphQL, gRPC, and WebSockets with microservices and event-driven systems. Background jobs, cron scheduling, event-driven workflows, and webhook-based integrations. REAL-TIME & MEDIA : WebRTC-based applications using LiveKit, Agora for real-time communication systems. Video processing pipelines using FFmpeg (transcoding, HLS/DASH streaming, media processing). Communication systems using Twilio (SMS, voice, video), Socket .io, and Server-Sent Events. DATABASES & INFRASTRUCTURE: Relational & NoSQL databases: PostgreSQL, MySQL, MongoDB, Redis, Supabase, Firebase, Elasticsearch. WHAT YOU GET: ✅ Production-ready, AI-optimized code ✅ Scalable architecture built for long-term growth ✅ Agile delivery , clear milestones & regular updates ✅ AI-first mindset: every system built to be intelligent & automation-ready ✅ Long-term support & maintenance, not just a one-time handoff Whether you're a startup building an AI-powered MVP or an established business automating workflows, scraping data at scale, or expanding to mobile , I deliver clean, intelligent, production-ready solutions built to grow with you. Send a message or invite me to your job , let's build something great.
Jaydeep D.
$23/hr
100% Job Success
$300K+ earned
Available now
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Top Rated Plus Full-Stack Developer with $300K+ earned on Upwork and AWS Certified Solutions Architect credentials. I help startups and enterprise teams build scalable web, desktop, and AI-enabled products using React, Node.js, Python, and Electron. My work is end to end. I can take a product from scoping and architecture through frontend development, backend services, API design, database modeling, desktop packaging, cloud deployment, and post-launch optimization. Whether you need a SaaS platform, an internal operations tool, an Electron desktop application, or an AI-assisted workflow, I focus on building systems that are fast, reliable, and maintainable in production. Technically, I build modern React and Next.js interfaces, robust Node.js and Python backends, and cross-platform Electron apps for Windows, macOS, and Linux. I also integrate practical AI features where they create real business value: assistant workflows, document processing, OCR, summarization, retrieval, automation, internal copilots, and LLM-enabled product features tied to actual business processes. My development workflow is AI-assisted, but not AI-dependent. I use tools such as Claude, Copilot, Cursor, and other LLM-based workflows to accelerate research, scaffolding, testing, debugging, and iteration. The key difference is oversight: architecture, security, performance, code quality, and business logic stay under experienced engineering review. Clients get faster delivery without ending up with fragile generated code. Clients usually bring me in when they need one person who can connect product thinking with execution. I am comfortable with greenfield builds, rapid MVPs, rescue work on existing codebases, performance optimization, refactoring, and scaling products that have already reached real users. Clear communication, clean architecture, and dependable delivery are a core part of how I work. If you need a senior engineer who can deliver React, Node.js, Python, Electron, and AI features in one coherent stack, I’d be glad to discuss your goals and the fastest path to a stable release. Let’s build something durable. 𝐀𝐈 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐬 𝐃𝐞𝐬𝐤𝐭𝐨𝐩 𝐂𝐨𝐧𝐬𝐨𝐥𝐞 | 𝐄𝐥𝐞𝐜𝐭𝐫𝐨𝐧 + 𝐀𝐈 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 + 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 Built a high-performance Electron desktop app using React, Node.js, and Python for AI-assisted workflows, task automation, and secure local execution. Optimized for scalability, low-latency operations, and seamless deployment across Windows and macOS. 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐒𝐚𝐚𝐒 𝐃𝐚𝐬𝐡𝐛𝐨𝐚𝐫𝐝 𝐰𝐢𝐭𝐡 𝐀𝐈 𝐀𝐬𝐬𝐢𝐬𝐭𝐚𝐧𝐭 | 𝐑𝐞𝐚𝐜𝐭, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐏𝐲𝐭𝐡𝐨𝐧 Developed a scalable SaaS platform with React frontend, Node.js backend, and Python services, featuring embedded AI assistant workflows for support, semantic search, and internal knowledge access. Delivered secure APIs, modular architecture, and production-ready cloud deployment. 𝐅𝐚𝐬𝐭𝐀𝐏𝐈 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 | 𝐏𝐲𝐭𝐡𝐨𝐧, 𝐑𝐞𝐚𝐜𝐭, 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 Engineered a FastAPI-based automation platform with React UI and Node.js microservices for background processing. Built robust API integrations, reporting modules, and scalable workflows designed for startup agility and enterprise-grade expansion. 𝐎𝐟𝐟𝐥𝐢𝐧𝐞-𝐅𝐢𝐫𝐬𝐭 𝐄𝐥𝐞𝐜𝐭𝐫𝐨𝐧 𝐏𝐎𝐒 𝐒𝐲𝐬𝐭𝐞𝐦 | 𝐋𝐨𝐜𝐚𝐥 𝐒𝐲𝐧𝐜 + 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐃𝐞𝐬𝐤𝐭𝐨𝐩 Created a reliable Electron POS application with React UI, Node.js services, and offline-first data architecture. Implemented local storage, sync mechanisms, and cross-platform compatibility to ensure uninterrupted operations in low-connectivity environments. 𝐋𝐋𝐌-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭 𝐒𝐞𝐚𝐫𝐜𝐡 & 𝐑𝐞𝐭𝐫𝐢𝐞𝐯𝐚𝐥 | 𝐑𝐀𝐆, 𝐀𝐈, 𝐏𝐲𝐭𝐡𝐨𝐧 Built an AI-powered document intelligence system using React, Node.js, and Python, enabling ingestion, semantic search, summarization, and assistant-style querying. Focused on real-world business workflows with scalable Retrieval-Augmented Generation (RAG) architecture. 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 & 𝐑𝐞𝐩𝐨𝐫𝐭𝐢𝐧𝐠 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 | 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 + 𝐂𝐥𝐨𝐮𝐝 + 𝐑𝐁𝐀𝐂 Delivered a full-stack enterprise system with React, Node.js, Python, and cloud-native deployment. Designed complex workflows, advanced reporting, and role-based access control (RBAC), ensuring maintainability, performance, and seamless integrations.
Uzair A.
$30/hr
100% Job Success
$100K+ earned
Available now
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Hello! I am an accomplished Full Stack Developer with over 7 years of expertise in crafting cutting-edge web and mobile applications. My journey began as a back-end developer, and I have since mastered the art of developing robust web and mobile apps that deliver seamless user experiences. I have a strong command on following technologies and tools: ☑React Native, Flutter for mobile app excellence ☑Kotlin, Swift for dynamic mobile experiences ☑REST API & Redux ecosystem for efficient data flow ☑Firebase for scalable and real-time applications ☑Jest for rigorous testing ☑NODE JS, NEST JS for powerful backend development ☑Python, Django for versatile scripting ☑MySQL, MongoDB, Redis, Elasticsearch for robust data management ☑Docker, Vagrant for seamless deployment ☑Nginx, Haproxy for optimized performance ☑Various AWS services for scalable cloud solutions ☑Git, GitHub, Bitbucket for streamlined version control ☑Strong HTML & CSS skills for pixel-perfect designs ☑PHP, Laravel, Symfony ☑ WordPress, Shopify As a Python AI/ML developer specializing in data science and deep learning, I am dedicated to delivering high-quality solutions that leverage the power of artificial intelligence and machine learning for businesses. With a strong computer science background and hands-on experience in developing state-of-the-art AI models, my services encompass a wide range of tasks including data analysis, predictive modeling, natural language processing, and computer vision. I am passionate about providing intelligent solutions that generate actionable insights and drive improved business outcomes. Areas of expertise in Python AI/ML developer: 🚀 Image analysis, classification, and detection: I utilize vector databases and image analysis models to create hashes and perform image matching, enabling precise and efficient image analysis. 🚀 AI bots trained on custom language models: By leveraging GPT3 models and training them on specific datasets, I create AI bots capable of engaging in deeper and more tailored conversations. 🚀 ML - computer vision: I excel in tasks such as segmentation, classification, and object detection, leveraging advanced techniques and tools like PyTorch, Keras, ResNet50, OpenCV, and TensorFlow. Programming languages and tools I am proficient in: ✔️ Python ✔️ R ✔️ PyTorch ✔️ Keras ✔️ ResNet50 ✔️ OpenCV ✔️ TensorFlow ✔️ SQL ✔️ OpenAI I am committed to delivering innovative AI solutions that drive business growth and efficiency. Let's collaborate to unlock the full potential of artificial intelligence in your organization.
Habib U.
$25/hr
100% Job Success
$60K+ earned
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𝙄 𝙝𝙚𝙡𝙥 𝙛𝙤𝙪𝙣𝙙𝙚𝙧𝙨 𝙗𝙪𝙞𝙡𝙙, 𝙧𝙚𝙨𝙘𝙪𝙚 𝙖𝙣𝙙 𝙨𝙘𝙖𝙡𝙚 𝙎𝙖𝙖𝙎, 𝙈𝙑𝙋, 𝘼𝙄 𝙖𝙣𝙙 𝙑𝙤𝙞𝙘𝙚 𝘼𝙄 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. My goal is simple: • Help you launch faster • Reduce manual work using AI • Keep AI and cloud costs under control • Avoid expensive technical mistakes • Build a stable product that can grow • Take technical work off your plate I am an AWS Certified Solutions Architect and Full-Stack Developer with 9+ years of experience building production systems for companies across the US, UK, Australia, Saudi Arabia, and other international markets. 𝗛𝗼𝘄 𝗜 𝗖𝗮𝗻 𝗔𝗱𝗱 𝗩𝗮𝗹𝘂𝗲 - 𝗦𝗮𝗮𝗦 𝗮𝗻𝗱 𝗠𝗩𝗣 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 I help founders plan, build, launch, and scale production-ready SaaS and MVP products. This includes architecture, frontend, backend, mobile apps, payments, dashboards, integrations, cloud deployment, and long-term support. - 𝗔𝗜-𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗲𝗱 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗥𝗲𝘀𝗰𝘂𝗲 Built your product with Lovable, Bolt, CoReplit, or Cursor? I can fix broken features, improve security and performance, clean up the codebase, and prepare the product for real customers without rebuilding everything unless it is necessary. - 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀 𝗮𝗻𝗱 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 I build AI systems that reduce manual work, improve response time, and lower operating costs. This includes AI agents, RAG systems, document processing, customer support automation, internal knowledge tools, and AI workflow automation. - 𝗩𝗼𝗶𝗰𝗲 𝗔𝗜 I build Voice AI agents that answer calls, book appointments, take orders, qualify leads, update business systems, and transfer calls when needed. I also built CallSynthra, a customisable voice AI platform for clinics, restaurants, logistics, and service businesses. - 𝗔𝗜 𝗖𝗵𝗮𝘁𝗯𝗼𝘁𝘀 I build AI chatbots that answer customer questions, qualify leads, book appointments, automate support, and connect with CRM and business systems. 𝗣𝗿𝗼𝘃𝗲𝗻 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 - 𝗞𝗶𝘀𝘀 𝗟𝗼𝘆𝗮𝗹𝘁𝘆 (Healthcare SaaS) Helped design and scale a secure multi-tenant SaaS platform from around 100 users to approximately 500,000 users without requiring a complete rebuild. Tech: React, Next.js, Node.js, PostgreSQL, Redis, Docker, AWS ECS, RDS, CloudWatch, Cloudflare - 𝗧𝗲𝗰𝗵𝘀𝗵𝗶𝗽 (Logistic SaaS) Built and scaled a logistics SaaS platform supporting 30+ tenants and running in production for more than 4+ years. Tech: Node.js, Spring Boot, Next.js, MySQL, Redis, GCP, Kubernetes, Docker - 𝗖𝗮𝗹𝗹𝗦𝘆𝗻𝘁𝗵𝗿𝗮 (Voice AI, AI Product) Built a Voice AI platform that can answer calls 24/7, book appointments, take orders, qualify leads, access business knowledge, update systems, and complete follow-up actions. Tech: Python, FastAPI, Next.js, LangGraph, Twilio, Cartesia, Deepgram, Qdrant - 𝗔𝘀𝘀𝗲𝘁 𝗣𝗹𝗮𝗻𝗲𝘁 (Fintech Platform) Built web, mobile, and serverless backend features for a fintech platform and maintained the system for more than 3+ years. Tech: Node.js, TypeScript, React, Next.js, React Native, MySQL, WebSockets, AWS Lambda, Plaid API, Twilio, Stripe, Apple Pay, Google Pay 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗚𝗲𝘁 → A clear technical plan before development starts → Practical architecture without unnecessary complexity → Clean and maintainable code → Better control over cloud and AI costs → Clear documentation → Early communication about risks → End-to-end technical ownership → Long-term support after launch 𝗟𝗼𝘄-𝗥𝗶𝘀𝗸 𝗙𝗶𝗿𝘀𝘁 𝗦𝘁𝗲𝗽 Before committing to a large project, I can review your idea, MVP, or current codebase and share: • The main technical risks • What should be fixed first • What can be reused • A recommended architecture • A practical development roadmap This gives you clarity before spending more money on development. ✅ 𝗪𝗲 𝗔𝗿𝗲 𝗮 𝗚𝗼𝗼𝗱 𝗙𝗶𝘁 𝗜𝗳 • You are building an AI, Voice AI, SaaS, or MVP product • You need someone who can take technical ownership • You have an MVP that needs to become production-ready • Your AI-generated project is becoming difficult to manage • You want better security, performance, scalability, or cloud cost control • You need support across architecture, development, cloud, and AI • You want a long-term technical partner, not only someone who completes tickets I work best with founders who value clear communication, practical decisions, and long-term product growth. 𝗖𝗼𝗿𝗲 𝗦𝘁𝗮𝗰𝗸 AI: OpenAI, Claude, Gemini, LangChain, LangGraph, RAG, Pinecone, Qdrant Voice AI: Twilio, ElevenLabs, AssemblyAI, Speech-to-Text, Text-to-Speech, Retell AI, Vapi AI Backend: Python, FastAPI, Django, Node.js, NestJS, Java Spring Boot Frontend and Mobile: React, Next.js, TypeScript, React Native Cloud: AWS, GCP, Docker, Kubernetes, Terraform, CI/CD 𝗦𝗲𝗻𝗱 𝗺𝗲: What you are building Your current stage Your biggest technical problem I will review it and suggest the most practical next step.
Maksym P.
$35/hr
100% Job Success
$200K+ earned
Available now
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🥇 EXPERT-VETTED 🥇 With a decade of experience as a PHP Developer, Laravel Developer, WordPress Developer, and Full Stack Developer, I have successfully delivered 100+ projects with outstanding client feedback. I help businesses build scalable web applications, custom SaaS platforms, and high-performing WordPress solutions while staying ahead of emerging technologies. I take pride in 📈 developing scalable and high-performance Laravel applications, specializing in maintainable, secure code and seamless integrations. This dedication, verified by my long-standing freelance status, places me in the 🥇 top 1% of expert-vetted developers with more than ten thousand logged hours. Quantifiable Achievements: ⚡ Performance As a Laravel Developer and PHP Developer, database query and caching optimizations cut Laravel app load times by 50%. Using Redis, OPcache, and Eloquent query enhancements, doubled PHP web application speeds. Optimized Laravel API efficiency, resulting in a 60% decrease in API response times through rate-limiting and query enhancement. E-commerce platform optimization on Laravel led to checkout abandonment dropping by 35% and revenue climbing by 20%. 🛡️ Code Quality Reduced technical debt by 40% through codebase refactoring, boosting maintainability as Web Developer and Laravel Developer. Achieved 90% unit test coverage with PHPUnit and Pest, minimizing production errors. Automated CI/CD pipelines and testing reduced change failure rates to below 15%. ☁️ Infrastructure Serverless solutions and scalable cloud setups cut Laravel hosting expenses by 30%. Introduced failover and database replication, reducing server downtime by 60%. Via CI/CD, Laravel Forge, and Envoyer, increased deployments by 30% as Full Stack Developer and Laravel Developer. Core Competencies: 💻 Full Stack Development: Building custom Laravel apps, SaaS platforms, and backend systems using Laravel’s robust toolset as Laravel Developer, PHP Developer, and Full Stack Developer. 🔗 APIs: Design of RESTful APIs supporting scalable integrations with CRMs and payment gateways. 🎨 Frontend: Responsive interfaces via VueJS and ReactJS, focusing on progressive and single-page applications as Vue Developer. 🌐 Custom Platforms: Development covers CRM, management tools, healthcare platforms, and dashboards. Technical Proficiency: Laravel | PHP | REST API | SaaS | Multi-Tenancy | Laravel Livewire | Vue Developer | WordPress Developer 💾 MySQL/PostgreSQL/NoSQL 📜 Ajax, JavaScript (Vue.js, ReactJS), TypeScript, jQuery 📐 HTML, CSS, Bootstrap 🔍 Redis, Elasticsearch Specialised Offerings: 🤖 Automation & API Integration 🚀 Custom Laravel/React Solutions 💳 Payment Integration (Stripe) 🤖 ChatGPT & AI Integration 🏎️ High-performance Optimisation 🛍️ Shopify Customisation & Development 🚚 Delivery/Logistics Apps Industries Served: 🏢 SaaS & Multi-Tenant Solutions 🚚 Fleet & Logistics 🩺 Healthcare 💰 FinTech 🛒 Ecommerce From Laravel-powered backends to VueJS-powered frontends, I cover comprehensive development services. As a WordPress Developer, Vue Developer, Laravel Developer, and Web Developer, my solutions are built for scalability and durability. 🤝 Contact me for a consultation. Let’s discuss your requirements and set a solid development strategy. Updated: 16.06.2026
DevIT
Associated with
DevIT
$6M+
earned
Oleksandr V.
$32/hr
100% Job Success
$200K+ earned
Available now
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Laravel developer building B2B SaaS platforms and web marketplaces for 7+ years. Top Rated on Upwork. 100% JSS. 7,000+ hours billed. $200k+ earned. Any bug in my code is fixed at no extra cost - for as long as your platform is live. That's the warranty I give every client, and it's why I've kept a 100% satisfaction rate across 32 jobs. Platforms I've shipped: Oscar Yankee Wings - aviation training SaaS (Denmark): multi-role dashboards for Head of Training, Operations, Instructor, Accountant, Student, Safety Manager; logbook system compatible with EASA standard; Dropbox integration; Laravel 8→11 upgrade with zero disruption to live users Defero - AI-driven scoring and recommendation platform (Norway): DynamicYield-based recommendation engine for personalized decision flows; gamification layer; scoring algorithm; full SaaS dashboard with admin panel and API integrations AdSplash - MarTech multi-platform data aggregator (USA): dashboards pulling from Google, YouTube, Facebook, Instagram, AppStore, Snapchat within a single interface; payment wallet integrations; role-based permissions; super-admin architecture UnderTheRadar - subscription research platform with tiered access (Australia): subscription access control with tiered membership plans; interactive portfolio manager; full dashboard rebuild, QA cycle, and production deployment MyMyCars - automotive marketplace (Ukraine): rotation system, test drive booking, AI recommendation engine for similar/competitive car models, Elasticsearch, automatic data filling via state database API integration A-link - Marketing automation SaaS (Malta): link builder, Ahrefs analysis, dashboard, filtration system, Stripe integration; Laravel + Vue.js + PostgreSQL Carma - multi-step approval workflow platform (Saudi Arabia): OTP SMS auth, document upload pipeline, financial analysis integration, end-to-end request submission and approval workflow, payment infrastructure Dance Planet - E-Commerce + ERP platform (Ukraine): multi-role booking system, supply chain management, selling automation; Laravel + Vue.js + Nuxt.js + MySQL Stack: Laravel, PHP, Symfony, PostgreSQL, MySQL, Vue.js, React, JavaScript, Node.js, HTML5, CSS, Bootstrap, REST API, Git, Docker, Redis, Stripe, DigitalOcean, Livewire What working with me looks like: architecture scoped before a single line of code is written. Daily async updates. Clean, documented, production-ready code. 30+ hours/week. Flexible on timezone. Lifetime warranty included on every project - any bug in my code, I fix it. No invoice. No argument. That's been my standard for 7 years. Building a B2B SaaS or marketplace? Send me a message.
SIA "Snotor"
Associated with
SIA "Snotor"
$300K+
earned