NoSQL Experts For Hire
Showing 62 results
Sponsored Freelancers
-
Hire jeremiasg17
Senior Full-Stack | AI Software Engineer with over 10 years of experience designing and delivering scalable web, mobile and AI applications from concept to production. Specialized in high-performance SaaS platforms, real-time systems, cloud infrastructure, and automation solutions. Strong expertise in React, Next.js,...Senior Full-Stack | AI Software Engineer with over 10 years of experience designing and delivering scalable web, mobile and AI applications from concept to production. Specialized in high-performance SaaS platforms, real-time systems, cloud infrastructure, and automation solutions. Strong expertise in React, Next.js, React Native, NestJS, Node.js, Python, PHP and AWS cloud services. Experienced in building production-grade applications across fintech, healthcare, e-commerce, AI and automation domains. Focused on clean architecture, scalability, system reliability, and long-term maintainability. less -
Hire zeeshanysf
🚀 A powerful digital product should do more than look impressive. It should solve real problems, create better experiences, and help the business behind it move forward. Hi, I’m Zeeshan Afsar — a Full-Stack Web Developer, WordPress Developer, Shopify Developer, Mobile App Developer, and Creative Designer helping...🚀 A powerful digital product should do more than look impressive. It should solve real problems, create better experiences, and help the business behind it move forward. Hi, I’m Zeeshan Afsar — a Full-Stack Web Developer, WordPress Developer, Shopify Developer, Mobile App Developer, and Creative Designer helping businesses turn ideas into reliable digital products built for growth. I work across WordPress, Shopify, WooCommerce, PHP/Laravel, web applications, SaaS, CRM systems, mobile apps, UI/UX, Figma, APIs, payments, SEO, and performance optimization. But I never choose technology just because it is familiar. → I START WITH WHAT THE BUSINESS ACTUALLY NEEDS. ✅ WHAT I CAN HELP YOU BUILD 🌐 WEBSITES & ECOMMERCE • WordPress, WooCommerce & Shopify websites • Business websites, landing pages & online stores • Custom PHP/Laravel development ⚙️ FULL-STACK & CUSTOM SYSTEMS • Web applications, SaaS products & CRM systems • Dashboards, portals & business tools • APIs, Stripe, payments & custom integrations 📱 MOBILE APP DEVELOPMENT • Flutter & React Native applications • Native iOS & Android solutions • API-connected apps & custom features 🎨 UI/UX & CREATIVE • Figma UI/UX & responsive interfaces • Website and app design • Branding, logo design & digital assets The right solution is not always the most complicated one. Sometimes WordPress is exactly what the project needs. Sometimes Shopify is the smarter choice. Sometimes the business requires custom software, APIs, automation, or a mobile app. ★ TECHNOLOGY IS THE TOOL. THE RESULT IS THE PRIORITY. ⭐ WHY CLIENTS WORK WITH ME ✅ Clear, straightforward communication ✅ Practical solutions without unnecessary complexity ✅ Strong attention to design, functionality & usability ✅ Responsive, mobile-first development ✅ Careful testing before delivery ✅ Clean, scalable & maintainable work I can also step into projects that are slow, outdated, broken, difficult to manage, or no longer supporting the business properly. Sometimes the answer is a rebuild. Sometimes it is better development, faster performance, stronger integrations, or improving what already works. → I WILL RECOMMEND WHAT MAKES THE PRODUCT STRONGER. 💡 MY APPROACH I do not want to be the person you hire only to complete a checklist. I want to understand the problem behind the project, choose the right approach, and build something that works properly in the real world. 🚀 LET’S TURN THE IDEA INTO SOMETHING REAL Have a detailed brief? Send it. Have a website, store, app, or platform that needs improvement? Send it. Have screenshots, references, errors, or unfinished work? Send those too. Only have the idea? That is enough to start. 👉 Click Chat and tell me what you are trying to build, improve, fix, or launch. I will help turn it into a clear plan — and then into a digital product built to perform. — Zeeshan Afsar less -
Hire skysystemsinc
skysystemsinc skysystemsinc
$30 USD / hour
Web & Mobile Apps | UX/UI | CMS Development | OdooUnited StatesWelcome to our Profile! Your Gateway to Exceptional Digital Experiences! We are a digital Agency known as Sky System, Inc. based in Raleigh, NC, USA. We are new to this platform but you can easily find us on other platforms with good reviews and ratings. We are a dynamic team of expert full-stack developers, UX/UI...Welcome to our Profile! Your Gateway to Exceptional Digital Experiences! We are a digital Agency known as Sky System, Inc. based in Raleigh, NC, USA. We are new to this platform but you can easily find us on other platforms with good reviews and ratings. We are a dynamic team of expert full-stack developers, UX/UI designers, SEO engineers, QA engineers, and Project Managers. Our skills span across various domains, with particular expertise in: ⭐ UX/UI Designing: Figma, AdobeXD, Sketch, and InVision Studio. ⭐ CMS: WordPress, Shopify, Webflow, Wix, and Squarespace. ⭐ Frontend - JavaScript/Typescript, HTML/CSS, Tailwind CSS, React, React Native, Flutter, Next, Vue, and Angular. ⭐ Backend - Node.js, Nest.js, PHP/Laravel. ⭐ Databases - MongoDB, MySQL, NoSQL, and PostgreSQL. ⭐ Cloud services - AWS. ⭐ Tools - Git, GitHub, bug trackers, Jira. We have extensive experience collaborating with various startups, medium-sized enterprises, and large-scale businesses across diverse industries. Also, we have great expertise in creating custom coding platforms/Software such as ✅ Non-Profit, Crowdfunding, NGO ✅ HRM, Payroll, Workforce Management system ✅ Task Management system / Project Management system ✅ Real Estate Investor/ Agent Portals ✅ Healthcare / TeleHealth / Doctor / Patient Portal ✅ Job Board ✅ E-commerce Marketplaces ✅ SaaS platforms ✅ ERP and CRM System Why Choose Us for Your Business? 1. Innovative Excellence: Elevate your business with our innovative solutions, setting you apart in the market. 2. Client-Centric Approach: Your success is our focus. We tailor services to meet your unique needs for a personalized experience. 3. Proven Track Record: Trust in our expertise with a proven track record of successful projects and satisfied clients. 4. Timely Delivery, Quality Results: Expect on-time delivery without compromising on the quality of our work, ensuring your project's success. Let's collaborate and elevate your digital presence to new heights! Whether it's a stunning website, an efficient e-commerce platform, or a robust application, we are here to turn your ideas into reality. Regards, Team Sky Systems, Inc. less -
Hire arturg6
======= Hello and welcome! ======= I am a Full Stack Developer, AI Engineer, and Mathematics Researcher with a strong academic background in mathematics, scientific computing, machine learning, and software development. My experience combines advanced mathematical problem-solving, research methodology, and modern...======= Hello and welcome! ======= I am a Full Stack Developer, AI Engineer, and Mathematics Researcher with a strong academic background in mathematics, scientific computing, machine learning, and software development. My experience combines advanced mathematical problem-solving, research methodology, and modern software engineering to create efficient, scalable, and intelligent solutions for businesses, startups, and individuals. ===== Academic Background ===== ✓ Master's Degree in Mathematics ✓ Doctoral Research Experience in Mathematics ✓ Published Research Author ✓ Scientific Computing & Mathematical Modeling ✓ Advanced Statistics & Data Analysis ===== Development Expertise ===== - Frontend Development • React.js • Next.js • Vue.js • TypeScript • JavaScript (ES6+) • HTML5, CSS3, Tailwind CSS - Backend Development • Node.js & Express.js • Python (Django, Flask, FastAPI) • PHP & Laravel • RESTful APIs • Authentication & Security - Database Systems • PostgreSQL • MySQL • MongoDB • SQLite • Database Design & Optimization ===== Artificial Intelligence & Data Science ===== • OpenAI & ChatGPT Integration • AI Chatbot Development • LangChain Applications • Machine Learning Solutions • Natural Language Processing (NLP) • TensorFlow & PyTorch • Data Analytics & Visualization • Predictive Modeling • Automation & Intelligent Workflows ===== Cloud & DevOps ===== • AWS Cloud Services • Google Cloud Platform (GCP) • Docker & Kubernetes • CI/CD Pipelines • Linux Server Administration • Nginx & Apache • Infrastructure Automation ===== Mathematics & Research ===== My mathematical background enables me to approach projects with strong analytical thinking and precision. Areas of interest include: • Machine Learning • Graph Theory • Optimization Algorithms • Statistical Analysis • Scientific Computing • Linear Programming • Mathematical Modeling • Data Mining ===== Why Choose Me? ===== ✓ Strong Problem-Solving Skills ✓ Research-Oriented Mindset ✓ Clean & Maintainable Code ✓ Fast and Clear Communication ✓ Reliable Project Delivery ✓ Scalable and Secure Solutions ✓ Long-Term Technical Support ===== My Goal ===== To help clients transform ideas into high-quality digital products through modern web technologies, artificial intelligence, and data-driven solutions. Whether you need a web application, AI-powered system, automation workflow, API integration, database solution, or custom software, I am ready to help bring your vision to life. Feel free to contact me to discuss your project. less -
Hire pavlev8
AI, Data & Full-Stack Systems Architect with 6+ years of experience delivering 15+ production projects across six countries. I design, build, test and deploy complete software platforms—from data architecture and backend APIs to AI integration, user interfaces, cloud deployment and automated quality assurance. My...AI, Data & Full-Stack Systems Architect with 6+ years of experience delivering 15+ production projects across six countries. I design, build, test and deploy complete software platforms—from data architecture and backend APIs to AI integration, user interfaces, cloud deployment and automated quality assurance. My strongest technologies are Python, Django and PostgreSQL, supported by extensive JavaScript/TypeScript experience with MERN and MEAN applications. As an EU citizen, I offer convenient working-hour overlap for European and US clients. ## What I Build • AI & Generative AI: LLM applications, RAG systems, AI agents, chatbots, semantic search, structured outputs, function/tool calling, prompt engineering, model integration and evaluation. • Data Engineering: ETL/ELT pipelines, data ingestion, transformation and validation, database design, query optimization, time-series processing, IoT sensor integration and data-quality automation. • Full-Stack Systems: scalable APIs, responsive web applications, authentication, third-party integrations, background processing and real-time communication using WebSockets and SSE. • DevOps & Cloud: containerized deployment, Linux environments, CI/CD workflows, asynchronous services, production configuration and deployment automation. • QA Automation: API, integration, regression and end-to-end testing, validation scripts, test-data workflows and automated quality gates. ## Technical Stack AI: OpenAI API, Anthropic, Gemini, Hugging Face, LangChain, LlamaIndex, PyTorch, TensorFlow and scikit-learn. Vector infrastructure: FAISS, Chroma, Pinecone and pgvector. Backend & frontend: Python, Django, Django REST Framework, Falcon, Node.js, Express, React, Angular, JavaScript, TypeScript, C#/.NET and Java. Data: PostgreSQL, MongoDB, SQL Server, Redis, SQL, pandas, NumPy and SciPy. DevOps & real-time: Docker, Docker Compose, AWS S3, Heroku, Linux, Gunicorn, Celery, Redis Pub/Sub, Django Channels, WebSockets, SSE and cron. Testing: Pytest, Jest and Playwright. Integrations: Stripe, Firebase Cloud Messaging, Expo Push, OpenAI and other LLM APIs, Met.no, Meteostat and custom third-party services. ## What I Bring I take ownership from initial requirements through production deployment. I have independently built systems from zero, coordinated Android and iOS developers on API consistency, integrated complex external services and mentored junior engineers. My combined experience in backend engineering, data, AI and infrastructure enables me to solve problems across the entire platform—not just one isolated layer. I prioritize scalability, security, maintainability, clear communication and documentation, delivering systems that teams can confidently operate and extend. less -
Hire KeshavInfotech
KeshavInfotech KeshavInfotech
$15 USD / hour
Quick & Affordable AI Dev: Mobile, Web, Games, IoTIndia18+ Years | Unity Games, Mobile & Web Apps | Top-Ranked on Freelancer Hi there! I'm Ghanshyam, and I lead the team here at Keshav Infotech. Our journey started in 2006. Back then, my partner Samir and I had just three computers (one was borrowed!) and a tiny workspace. Today, we have grown into a team of 75+ experts...18+ Years | Unity Games, Mobile & Web Apps | Top-Ranked on Freelancer Hi there! I'm Ghanshyam, and I lead the team here at Keshav Infotech. Our journey started in 2006. Back then, my partner Samir and I had just three computers (one was borrowed!) and a tiny workspace. Today, we have grown into a team of 75+ experts working from our 5,000-sq-ft office. We aren't just "tech guys." We are "techpreneurs" who love building great products. Game Development Building games is some of the most rewarding work we do. Our team develops high-quality Unity games, and we bring the same discipline to a game project that we bring to any app: clear planning, tight testing across devices, and regular reviews so you always know where things stand. If you have a game idea, we would love to hear it. Everything Else We Build Games are one part of what we do. Over 18 years we have built a wide range of products for our clients: Mobile Apps: iOS, Android, and Flutter Specialized Apps: BLE, IoT, NFC, and Hardware integration Web Development: Laravel, Node.js, React, Vue, WordPress, and Shopify Design: Modern UI/UX design for apps and websites Why Work With Us? We combine 18 years of deep experience with the speed of modern AI. Faster Delivery: We use the latest AI tools (Cursor, Claude, ChatGPT) to write and check code faster. Better Pricing: By working efficiently and reusing our own tested components, we save time on manual tasks and pass those savings on to you. Proven Quality: We are in the Top Rank of the Freelancer.com community with a very high repeat-hire rate. How We Work (Step-by-Step) We follow a clear process so there are no surprises: Scope: We create a detailed study document of your requirements. Planning: We build wireframes and data flow diagrams. Design: We create the system design and all app screens. Testing Plan: We define test cases for all devices. Development: Our team starts the programming phase. Review: Regular updates and reviews with you. Launch: Final testing, bug fixing, and deployment to your server. Availability & Communication Response Time: Usually within 12 hours. Working Days: Monday to Saturday. Working Hours: 10:00 AM to 8:00 PM. Our goal: We aren't looking for a "one-time project." We want to build a long-term business relationship with you. We guarantee our work and won't stop until you are 100% happy. Ready to start? Let's chat about your project! less -
Hire designysoft
Hello! I’m a Senior Software Architect and Full-Stack Developer with 20+ years of experience building scalable, secure, and performance-driven applications. I specialize in combining strong engineering fundamentals with modern AI capabilities to deliver intelligent, future-ready solutions. I build intelligent,...Hello! I’m a Senior Software Architect and Full-Stack Developer with 20+ years of experience building scalable, secure, and performance-driven applications. I specialize in combining strong engineering fundamentals with modern AI capabilities to deliver intelligent, future-ready solutions. I build intelligent, scalable applications by integrating AI into real-world business workflows. My experience includes AI-assisted data validation, automated mapping, and decision-support features that improve data onboarding and operational efficiency. I design reliable backend services and APIs for complex, high-volume systems, including large data migration and transformation pipelines with strict integrity requirements. I develop responsive, production-ready web applications and ensure they perform smoothly under real-time and high-concurrency conditions through scalable architecture and efficient processing patterns. Today, software is not just about functionality. It’s about automation, insights, and smarter decision-making. I help businesses integrate AI tools and cloud technologies into their systems to increase efficiency and unlock new value. Core Expertise Microsoft Ecosystem .NET Core, ASP.NET MVC, C#, VB.NET, Web & Desktop Applications, REST APIs, Microservices Architecture AI & Intelligent Systems AI API integrations (OpenAI and similar platforms) Chatbots and virtual assistants Workflow automation using AI tools Predictive analytics integrations AI-enhanced business applications Frontend & JavaScript React.js, Angular, Vue.js, Blazor, Node.js, TypeScript, jQuery, AJAX Mobile Development Flutter, .NET MAUI, React Native, Ionic, Native Android & iOS Cloud & DevOps Azure, AWS, Google Cloud CI/CD pipelines Docker-based deployments Cloud-native architecture and optimization Databases MS SQL Server, MySQL, PostgreSQL, MongoDB UI/UX & Responsive Design Tailwind, Bootstrap, HTML5, CSS3, Mobile-first design What I Deliver: - -> End-to-end product development, from architecture to production -> AI-powered features integrated into web and mobile applications -> Custom enterprise systems and automation platforms -> Cloud migration and scalable infrastructure design -> Secure, maintainable, and well-structured code -> Clear communication and predictable delivery timelines I work best with clients who value long-term collaboration and technical excellence. If you’re looking to modernize your application, integrate AI capabilities, or build a robust system from scratch, I’d be glad to discuss your goals. Let’s connect and explore how we can build something impactful. less -
Hire cliftonc20
I help businesses automate workflows and save time using AI. I build custom GPT-powered chatbots, document processing tools, and automation systems that reduce manual work and improve efficiency. Whether you need a chatbot for your website, AI-powered data processing, or workflow automation, I can deliver a reliable...I help businesses automate workflows and save time using AI. I build custom GPT-powered chatbots, document processing tools, and automation systems that reduce manual work and improve efficiency. Whether you need a chatbot for your website, AI-powered data processing, or workflow automation, I can deliver a reliable solution quickly. What I can build for you: • AI chatbots (customer support, FAQ, internal tools) • Document Q&A systems (PDF, CSV, knowledge base) • GPT-powered automation workflows (Zapier / Make) • Custom backend APIs using Python and FastAPI Tech stack: Python • OpenAI (GPT-4/5) • FastAPI • Zapier / Make • REST APIs • PostgreSQL Why work with me: • Fast delivery and clear communication • Focus on business results, not just code • Clean, scalable, and production-ready solutions Let’s build something that saves you time and grows your business. less -
Hire jasonm684
I’ve designed and delivered enterprise-scale platforms and complex, mission-critical systems for global companies, brands, and institutions. I’m seeking executive leadership and advisory opportunities focused on large-scale system design, enterprise architecture, and complex program delivery (work that keeps me sharp...I’ve designed and delivered enterprise-scale platforms and complex, mission-critical systems for global companies, brands, and institutions. I’m seeking executive leadership and advisory opportunities focused on large-scale system design, enterprise architecture, and complex program delivery (work that keeps me sharp and engaged). I’ve designed and led through intricate, high-stakes challenges across industries, and I thrive on transforming ambitious visions into robust, scaled realities. Let’s see what we can create together. Clients include: • Amazon • Major League Baseball • Cisco Systems • University of North Carolina at Chapel Hill • Wells Fargo Proficiency: • Technology Strategy & Roadmap Development • Technology Product Design, Development & Go-to-Market Leadership • Enterprise Architecture & Complex Systems Delivery • Digital Transformation & Platform Modernization • Executive Leadership & Organizational Design • Board-Level Communication & Stakeholder Alignment • M&A Technical Due Diligence & Integration • Vendor, Partner & Ecosystem Strategy • Program & Portfolio Governance Technical Foundation at Scale: • Full-Stack Engineering • Artificial Intelligence/Machine Learning • Cloud-native architectures • UX • Data Architectures & Transformation • Mobile, Web, and Desktop Platforms • Data Science Skills: • Graphic Design: Adobe & Open Source (Inkscape, GIMP, Scribus, etc) • UI/UX: Figma, Invision • Front-end App Development: HTML, CSS, JS, Vue, React, Next, Nuxt, PHP • Back-end Development: Node, Python, Go, Java/Spring Boot, .Net • Relational DB: Postgres, Oracle, MSSQL, SAP, SAS • NoSQL: Firebase, MongoDB, Cassandra, DynamoDB, Keyspaces, Redis, Solr • Server/Containers: Linux (Bash), Windows, Docker, Kubernetes • Cloud: AWS, Azure, Google Cloud • Mobile/Desktop: Kotlin, Swift, Xamarin, React Native, Flutter, Ionic • Data Science: R, Spark, Tableau less -
Hire webintellingence
webintellingence webintellingence
$110 USD / hour
✅Recommended by Freelancer.com Top 1% ⭐⭐⭐⭐⭐PakistanHello, Thank you for taking the time to visit my profile! I’m a Website, Mobile App, UI/UX, Graphic Design, Branding, Digital Marketing, Automation, AI Integration, and Full-Stack Development professional with over 6 years of experience delivering high-quality digital solutions for startups, businesses, agencies,...Hello, Thank you for taking the time to visit my profile! I’m a Website, Mobile App, UI/UX, Graphic Design, Branding, Digital Marketing, Automation, AI Integration, and Full-Stack Development professional with over 6 years of experience delivering high-quality digital solutions for startups, businesses, agencies, and entrepreneurs. I work with a skilled team covering design, development, marketing, content, automation, and technology, allowing us to handle everything from logos and landing pages to complete websites, eCommerce stores, SaaS platforms, mobile apps, AI solutions, and custom integrations. My core skills include: Website Development: WordPress, WooCommerce, Shopify, Wix, Squarespace, Webflow, Framer, Elementor, PHP, HTML, HTML5, CSS, JavaScript, TypeScript, Bootstrap, Tailwind CSS, PSD to HTML, CMS, Website Management, Website Testing, Page Speed Optimization and Web Security. Full-Stack Development: React.js, Next.js, Vue.js, Nuxt.js, Angular, Node.js, Express.js, MERN Stack, Laravel, Python, Django, Flask, FastAPI, REST API, GraphQL, MySQL, PostgreSQL, MongoDB, Supabase, GitHub, GitLab, Docker and DevOps. Mobile Development: Android, iOS, Flutter, FlutterFlow, React Native, Kotlin, Android Studio, Xcode, Mobile App Testing and App Design. UI/UX & Design: Figma, Adobe XD, User Interface, UX Design, Prototyping, Wireframes, User Experience Research and Digital Product Design. Graphic Design & Branding: Logo Design, Branding, Corporate Identity, Adobe Photoshop, Illustrator, InDesign, Creative Cloud, Canva, Typography, Vector Design, Illustration, Character Design, Business Cards, Brochures, Flyers, Banners, Packaging, Labels, Catalogs, Book Covers and Print Design. SEO & Marketing: SEO, SEO Auditing, White Hat SEO, AEO, GEO, SEMrush, Keyword Research, Link Building, Google Ads, Facebook Ads, Instagram Ads, Meta Pixel, Google Analytics, Digital Marketing, Social Media Marketing, Content Marketing, Email Marketing, Mailchimp, Klaviyo and Conversion Optimization. AI & Automation: ChatGPT, AI Development, AI Integration, AI Voice Agents, Chatbots, Zapier, n8n, HubSpot, GoHighLevel, CRM Automation and API Integration. Additional expertise includes Web Hosting, cPanel, GoDaddy, Cloudflare, SSL, DNS, Stripe, PayPal, Payment Gateway Integration, Lead Generation, Data Scraping, Data Analysis, Content Writing, Copywriting, Project Management and Business Development. I focus on polished work, clear communication, reliable delivery, and practical solutions that support your business goals. Feel free to send me a message through Freelancer to discuss your project. Thanks, and have a great day! Arusha less
