MongoDB Specialists para contratar
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Freelancers patrocinados
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Contratar Herculesz
Principal / Head AI Engineer with 25+ years of experience architecting and scaling complex software systems, now specializing in Large Language Models (LLMs), agentic workflows, and AI-first product development. Proven expertise in integrating OpenAI APIs, building RAG pipelines, and deploying scalable,...Principal / Head AI Engineer with 25+ years of experience architecting and scaling complex software systems, now specializing in Large Language Models (LLMs), agentic workflows, and AI-first product development. Proven expertise in integrating OpenAI APIs, building RAG pipelines, and deploying scalable, production-grade LLM features using LangChain, pgvector, Pinecone, and related technologies. Hands-on leader with a track record of transforming business workflows through intelligent systems—semantic search, AI copilots, and conversational agents—while maintaining rigorous engineering standards across DevOps, observability, and frontend/backend architecture. Deep experience in embedding optimization, prompt engineering, fine-tuning GPT models, and delivering generative AI(GenAI) products that drive measurable impact. Skilled in mentoring engineers, leading cross-functional AI initiatives, and aligning technical strategy with executive goals in fast-paced, innovation-driven environments. Passionate about building the next generation of human-centered AI systems. menos -
Contratar vipinjain1213
With 13 plus years of experience in web and mobile app development, we specialise in crafting high-performance, scalable digital products using modern technologies like Flutter, React Native, and the MERN stack. Our team has successfully delivered 50+ projects for startups and enterprises, ensuring top-tier quality,...With 13 plus years of experience in web and mobile app development, we specialise in crafting high-performance, scalable digital products using modern technologies like Flutter, React Native, and the MERN stack. Our team has successfully delivered 50+ projects for startups and enterprises, ensuring top-tier quality, clean code, and on-time delivery. We handle projects from concept to deployment, ensuring seamless integration between frontend, backend, and mobile platforms. Mobile App Development - Cross-Platform: Flutter, React Native (iOS & Android) - UI/UX: Responsive designs using Figma - Integrations: Firebase, AWS, REST APIs, third-party SDKs - Payments & Monetization: Stripe, PayPal, AdMob, in-app purchases Web Development - Frontend: React.js - Backend: Node.js - Database: MongoDB, MySQL, Firebase, PostgreSQL - CMS & E-commerce: WordPress, WooCommerce, Shopify - Cloud: AWS, Google Cloud, DigitalOcean - Integrations: Payment gateways, CRM, analytics, and custom APIs Tech Stack Flutter | React Native | React.js | Node.js | Express | MongoDB | Firebase | AWS | WordPress | Shopify We focus on building reliable, future-ready solutions with clean architecture and smooth user experiences. Whether it’s a mobile app, a full-stack web app, or both — we bring your ideas to life with precision, performance, and professionalism. Let’s connect and turn your vision into a powerful digital product. menos -
Contratar salmanshahid5432
salmanshahid5432 salmanshahid5432
$15 USD / hora
Full Stack Web App Developer | 💯 Recommended ✪PakistanGet a Full-Stack Website 5x faster—no compromise on quality. Built 60+ SaaS websites in the last 4+ years and helped some scale to $80k+ MRR. I've been the top performer for years. 100% refund if I set wrong expectations or can't deliver. 𝐌𝐲 𝐓𝐨𝐨𝐥𝐤𝐢𝐭: ◾ 𝐅𝐫𝐨𝐧𝐭-𝐞𝐧𝐝: React, Vue.js, TypeScript, Material UI, Tailwind CSS,...Get a Full-Stack Website 5x faster—no compromise on quality. Built 60+ SaaS websites in the last 4+ years and helped some scale to $80k+ MRR. I've been the top performer for years. 100% refund if I set wrong expectations or can't deliver. 𝐌𝐲 𝐓𝐨𝐨𝐥𝐤𝐢𝐭: ◾ 𝐅𝐫𝐨𝐧𝐭-𝐞𝐧𝐝: React, Vue.js, TypeScript, Material UI, Tailwind CSS, Bootstrap ◾ 𝐁𝐚𝐜𝐤-𝐞𝐧𝐝: Node.js, Laravel, Python ◾ 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐞𝐫𝐚𝐭𝐢𝐨𝐧: OpenAI, ChatGPT, Generative AI Solutions 𝐌𝐲 𝐒𝐭𝐚𝐭𝐬: 🌟 5-star review streak on all projects 💯 100% Job Success Score for on-time, on-budget delivery 💰 Helped scale startups to $80k+ MRR 🏅 4+ years of experience 💸 $50k earned across different platforms 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮'𝐥𝐥 𝐆𝐞𝐭 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞: ◾ A dependable development partner ◾ Quick responses (less than 30 minutes unless I'm sleeping) ◾Clean, maintainable code with detailed documentation ◾ A clear "No" if something isn’t feasible—no wasted time ◾ A well-crafted MVP or full-fledged SaaS, prioritizing user experience above all 𝐌𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐓𝐡𝐢𝐧𝐤: ◾ Salman is an amazing contractor, bringing a wealth of talent, intelligence, and experience to our team. ◾ His communication was superb, and he delivered code of excellent quality while fully understanding our requirements. ◾ Excellent knowledge, willingness to share, and the ability to simplify complex topics. 𝐀𝐛𝐨𝐮𝐭 𝐌𝐞: I’ve been working as a full stack developer for the past 4 years. After gaining valuable experience, I left my job to pursue full time freelancing. 𝐖𝐞 𝐂𝐚𝐧 𝐁𝐞 𝐀 𝐆𝐨𝐨𝐝 𝐌𝐚𝐭𝐜𝐡 𝐈𝐟: ✅ You're looking for an entrepreneurial founding engineer who can hit the ground running. ✅ You want a partner who dives deep into your domain and sincerely advises on the best solutions. ✅ You’re solving a niche problem with SaaS—whether it’s a Chrome Extension, Web App, or Mobile Application. ✅ You already use a web application for your business needs but need an extended version that makes it more efficient, such as through a Chrome/browser extension. ✅ You need expertise in B2B/B2C SaaS automation, AI integration, or productivity tools. ✅ You value clear communication and clean, maintainable code. 𝐖𝐞 𝐌𝐢𝐠𝐡𝐭 𝐍𝐨𝐭 𝐁𝐞 𝐀 𝐆𝐨𝐨𝐝 𝐅𝐢𝐭 𝐈𝐟: ❌ Mutual respect isn’t a core value for you. ❌ Your product is associated with betting or the adult entertainment industry. IoT menos -
Contratar Dominantsoftech
I help startups and businesses build scalable SaaS platforms, AI-powered systems, and mobile apps. With 11+ years of experience and 100+ successful projects, I specialize in building high-performance solutions that combine modern tech with real business impact. What I can build for you: ✔ SaaS platforms (Web &...I help startups and businesses build scalable SaaS platforms, AI-powered systems, and mobile apps. With 11+ years of experience and 100+ successful projects, I specialize in building high-performance solutions that combine modern tech with real business impact. What I can build for you: ✔ SaaS platforms (Web & Mobile) ✔ AI-powered applications (Chatbots, automation, integrations) ✔ Custom web apps (Node.js / Laravel) ✔ Mobile apps (Flutter / iOS / Android) ✔ CRM & workflow automation systems I focus on scalable architecture, performance, and real-world business outcomes. If you're looking to build a serious product, let's connect. menos -
Contratar SmartCodeDev
SmartCodeDev SmartCodeDev
$20 USD / hora
Web & Mobile & AI Developer & DevopsTanzania, United Republic ofA passionate and results-driven Senior Software Engineer with over 8 years of experience in Full-Stack Web Development, Android App Development, and Artificial Intelligence (AI). Adept at building dynamic, high-performance applications and delivering secure, scalable solutions. Known for combining technical expertise...A passionate and results-driven Senior Software Engineer with over 8 years of experience in Full-Stack Web Development, Android App Development, and Artificial Intelligence (AI). Adept at building dynamic, high-performance applications and delivering secure, scalable solutions. Known for combining technical expertise with strong problem-solving and leadership skills to consistently meet and exceed project goals. Highly experienced in agile development environments, proficient in managing the entire software development lifecycle — from concept and architecture to deployment and maintenance. Skilled in cloud infrastructure, system administration, and DevOps practices, ensuring optimized performance, security, and reliability. Core Skills Full-Stack Development Languages: JavaScript, TypeScript, HTML5, CSS3, SQL, PHP, C#, C++, Go, Rust Frameworks & Libraries: React, Next.js, Node.js, Express.js, Django, Angular, Vue.js, Tailwind CSS, Bootstrap Databases: MongoDB, MySQL, PostgreSQL, Redis APIs: RESTful APIs, GraphQL, WebSockets Cloud & DevOps: AWS (EC2, S3, Lambda, RDS), Google Cloud Platform, Azure, Docker, Kubernetes, Jenkins, CI/CD Pipelines Testing & Quality: Jest, Cypress, Mocha, Chai Android & Mobile Development Languages: Kotlin, Java, Dart, Swift, Objective-C Frameworks & Libraries: Android SDK, Jetpack Compose, Firebase, SQLite, Room, Flutter, React Native Tools & IDEs: Android Studio, Gradle, Git Artificial Intelligence (AI) Development Languages: Python, R, Julia, MATLAB, JavaScript Tools & Libraries: TensorFlow, PyTorch, Keras, OpenCV, Scikit-learn, Hugging Face Transformers Expertise: Natural Language Processing (NLP), Computer Vision, Neural Networks, Data Analysis, Generative AI (Stable Diffusion, OpenAI API, LLaMA) Network & System Administration Expertise: Network configuration & troubleshooting, security protocols, server management, firewall setup, remote access tools Operating Systems: Linux (Ubuntu, CentOS), Windows Server Additional Skills: Shell scripting (Bash), PowerShell, performance optimization, server hardening, SSL/TLS setup Additional Professional Skills Agile & Scrum Methodologies API Integration (Payment Gateways, OAuth2, Third-Party APIs) UI/UX Optimization Performance & Scalability Engineering Key Strengths Proven ability to design and deliver end-to-end solutions for web, mobile, and AI platforms. Strong project management and leadership skills, capable of guiding teams to meet deadlines without compromising quality. Deep expertise in optimizing application performance and ensuring high system reliability. Committed to continuous learning and staying at the forefront of emerging technologies. menos -
Contratar MinaMaroufIt
I help startups and businesses build AI-powered SaaS platforms, automation systems, and modern web applications using Next.js, Node.js, and advanced AI APIs. My focus is on creating scalable, high-performance products that help companies launch faster, automate workflows, and deliver better user experiences. What I...I help startups and businesses build AI-powered SaaS platforms, automation systems, and modern web applications using Next.js, Node.js, and advanced AI APIs. My focus is on creating scalable, high-performance products that help companies launch faster, automate workflows, and deliver better user experiences. What I can build for you: • AI-powered SaaS applications • Next.js web apps and dashboards • Business automation tools • API integrations and backend systems • AI chatbots and intelligent features • MVP development for startups I write clean, maintainable code and build systems designed for scalability and long-term growth, not just quick fixes. If you're looking for a developer who can turn your idea into a real product or integrate powerful AI features into your platform, feel free to reach out. 🚀 Available for new projects and long-term collaborations. menos -
Contratar Smart1902
I have 12+ years of experience in Mobile (iOS/Android/Flutter/React/Xamarin/Kotlin) app development and Web development(PHP, Laravel, .NET, JAVA, Springboot, MERN Stack, Node JS, Nest JS, Express JS, Angular, ReactJs, Next JS). I have already developed and published 182+ mobile apps to the mobile market. My...I have 12+ years of experience in Mobile (iOS/Android/Flutter/React/Xamarin/Kotlin) app development and Web development(PHP, Laravel, .NET, JAVA, Springboot, MERN Stack, Node JS, Nest JS, Express JS, Angular, ReactJs, Next JS). I have already developed and published 182+ mobile apps to the mobile market. My Skills. -Flutter apps using Dart -iOS / iPhone mobile apps using Objective-C & Swift , SwiftUI -Android mobile apps using Android Studio, Eclipse and Android Jni (Call logs, location tracking in background) -React Native apps using React js -Website development using MERN, ReactJS, NodeJS, PHP, LARAVEL, .NET,JAVA, Springboot, Hibernate -Xamarin using Xaml, Visual Studio , C# -Apple watch apps using Objective-C & Swift , SwiftUI -APNS and in-app purchase -JSON parsing, soap response and web service -Apple/google Play store submission -Source control(bitbucket, Github, Gitlab, Git) -Google map api, in-app billing, Facebook api, twitter api, fabric, Twilio -Facebook/Twitter/Linkedin/Instagram/youtube apis -Rest web services -push notification, ftp server -audio/vido streaming -Trello, jira, slack menos -
Contratar AneesDahot2022
AneesDahot2022 AneesDahot2022
$10 USD / hora
WordPress Expert | Elementor | Flutter | ShopifyPakistanHi, I’m Anees. I build and fix WordPress websites for businesses and individuals and create apps too. Most of my work is with: • WordPress & Elementor • WooCommerce stores • Shopify edits and setup • Flutter apps I keep things simple: • I communicate clearly • I deliver on time • I don’t disappear after the...Hi, I’m Anees. I build and fix WordPress websites for businesses and individuals and create apps too. Most of my work is with: • WordPress & Elementor • WooCommerce stores • Shopify edits and setup • Flutter apps I keep things simple: • I communicate clearly • I deliver on time • I don’t disappear after the job is done Some of my recent work: WordPress • bevyla.com • onecube.agency • greentecenergy.com.au • accountingsolutionsllp.com • avantitours.com Shopify • https://www.numbersea.com/ Flutter (GitHub) • https://github.com/anees-dahot/ (Client apps included, some private) If you need someone reliable for WordPress work or quick fixes, feel free to message me. I’ll take a look and tell you honestly if I can help. menos -
Contratar letscms
👋 Welcome! I’m a Senior Full-Stack Developer with 14+ years of experience building scalable, secure, and high-performing applications. With 62 successful projects delivered on Freelancer, I’ve helped startups and enterprises worldwide launch solutions in eCommerce, MLM, live streaming, and AI-driven platforms. 💡...👋 Welcome! I’m a Senior Full-Stack Developer with 14+ years of experience building scalable, secure, and high-performing applications. With 62 successful projects delivered on Freelancer, I’ve helped startups and enterprises worldwide launch solutions in eCommerce, MLM, live streaming, and AI-driven platforms. 💡 What I Offer ✅ Custom Web & Mobile Apps – Laravel, React, Node.js, Flutter, Kotlin ✅ Live Streaming Platforms – apps like Tiki, Tango, TikTalk ✅ WordPress & WooCommerce – custom plugins, themes, eCommerce stores, MLM solutions ✅ Magento & Drupal – extension & theme customization, bug fixing, speed optimization ✅ AI & Python Solutions – Flask, TensorFlow, OCR, automation, data-driven tools ✅ Industries Served ✅ eCommerce & Retail – online stores, marketplaces, custom plugins ✅ Network Marketing (MLM) – smart commission systems, plugins, extensions ✅ Media & Entertainment – live streaming apps, video platforms ✅ Enterprise Solutions – dashboards, workflow automation, data platforms ✅ AI & Data Applications – OCR, predictive analytics, image processing ✅ Tech Stack Shopify Development Expertise ✅ Shopify Custom App Development (Private & Public Apps) ✅ Shopify Theme Development & Customization ✅ Shopify Liquid Programming Languages & Frameworks ✅ PHP (Laravel, YII) ✅ JavaScript (React, Node.js, Angular, Vite.js) ✅ Python (Flask, TensorFlow, Pandas, OpenCV) ✅ Flutter, Kotlin Frontend & Design ✅ HTML5 ✅ CSS3/5 ✅ Tailwind ✅ Responsive UI CMS & eCommerce ✅ WordPress (Plugins, Themes, WooCommerce, WPML, BuddyPress) ✅ Magento (Extensions, Themes) ✅ Drupal (Modules, Themes) Databases & Tools ✅ MySQL ✅ PostgreSQL ✅ MongoDB ✅ Git ✅ Docker ✅ REST APIs ✅ GraphQL ✅ Why Clients Choose Me ✅ 62 completed projects on Freelancer with proven client satisfaction ✅ Pixel-perfect design & clean, well-documented code ✅ Free 1-month maintenance after delivery ✅ Issues resolved within 24 hours max ✅ Strong English communication & dedicated 24/7 support ✅ 14+ years of expertise delivering reliable solutions ✅ Let’s Build Together Whether you need a robust backend, a modern frontend, or a smart AI-powered platform, I bring the skills, experience, and commitment to make your vision a reality. 💬 Message me today — let’s create something impactful that grows your business! menos -
Contratar basant807
Professional Web & App Developer | 10+ Years of Experience | 100+ Successful Projects I am a passionate Full-Stack Web and App Developer with over 10 years of professional experience and a proven track record of delivering 100+ successful projects for clients worldwide. Art is my passion, and design is my language —...Professional Web & App Developer | 10+ Years of Experience | 100+ Successful Projects I am a passionate Full-Stack Web and App Developer with over 10 years of professional experience and a proven track record of delivering 100+ successful projects for clients worldwide. Art is my passion, and design is my language — I combine creativity with strategy to craft visually stunning, functional, and user-friendly solutions. Core Expertise: UI/UX Design for Web & Mobile Applications Full-Stack Development: React, React Native, Node.js — end-to-end web and mobile applications built for performance and scale Frontend Development: React, Angular, HTML5, CSS3, Bootstrap 4, jQuery, Ionic, Shopify Backend Development: Node.js — REST APIs, database integration, scalable server-side architecture Mobile App Development: React Native — cross-platform iOS and Android apps with native performance WordPress/Shopify Development – Custom themes, responsive layouts, and SEO-friendly builds Why Work With Me? I deliver high-quality, innovative, and timeless solutions tailored to your brand's vision — from pixel-perfect UI to production-ready backend systems. Precision, creativity, and a keen eye for detail ensure every project is completed on time and exceeds expectations. My process is collaborative, transparent, and client-focused — your satisfaction is my top priority. Let's bring your ideas to life with impactful design and seamless functionality. menos
