Browse Freelancers
Mongodb
Expert in: Python, MySQL, WordPress + 25 more
I build AI-powered full-stack applications that solve real business problems — from intelligent voice agents and CRM systems to algorithmic trading bots processing millions of data points. With 7+ years of production experience across Python, Node.js, React, Django, Laravel, and Flutter, I bring deep expertise in LLM integration, machine learning, reinforcement learning, computer vision, and database architecture.
I've built an AI-powered real estate SaaS platform, crypto trading systems using reinforcement learning, cross-platform mobile apps, decentralized exchanges, and SEO-optimized web applications for clients across North America and Europe.
Whether you need an AI-integrated web app, a custom CRM, a mobile app, database optimization, or technical SEO — I ship fast, communicate clearly, and treat every project like my own product.
Based in Calgary, Canada. Available for remote projects worldwide.…I build AI-powered full-stack applications that solve real business problems — from intelligent voice agents and CRM systems to algorithmic trading bots processing millions of data points. With 7+ years of production experience across Python, Node.js, React, Django, Laravel, and Flutter, I bring deep expertise in LLM integration, machine learning, reinforcement learning, computer vision, and database architecture.
I've built an AI-powered real estate SaaS platform, crypto trading systems using reinforcement learning, cross-platform mobile apps, decentralized exchanges, and SEO-optimized web applications for clients across North America and Europe.
Whether you need an AI-integrated web app, a custom CRM, a mobile app, database optimization, or technical SEO — I ship fast, communicate clearly, and treat every project like my own product.
Based in Calgary, Canada. Available for remote projects worldwide.WWWW…
More info Expert in: JavaScript, CSS, HTML5 + 11 more
Hi, I'm Javier Grueso Zurita, a Full Stack Developer dedicated to building end-to-end web applications. I specialize in scalable architectures using the JavaScript ecosystem (Node.js, React, Vue.js) and robust Python (Flask) solutions.
My experience spans relational and non-relational databases, code optimization, and delivering efficient, user-friendly solutions for complex challenges. I enjoy collaborating across teams to craft modern, responsive interfaces and reliable APIs.…Hi, I'm Javier Grueso Zurita, a Full Stack Developer dedicated to building end-to-end web applications. I specialize in scalable architectures using the JavaScript ecosystem (Node.js, React, Vue.js) and robust Python (Flask) solutions.
My experience spans relational and non-relational databases, code optimization, and delivering efficient, user-friendly solutions for complex challenges. I enjoy collaborating across teams to craft modern, responsive interfaces and reliable APIs.WWWW…
More info Expert in: Flutter, Django, AngularJS + 24 more
Hi, I am james Haruki, a highly accomplished full-stack developer with over 6 years experience, specializing in Web, Mobile, AI agent development, as well as Desktop applications.
Skilled in building scalable SaaS web platforms using modern front-end and back-end technologies. Highly proficient in developing intelligent AI agents and desktop apps with Electron, Tauri.
Known for consistently delivering projects on time and within budget, with a strong ability to work both independently and collaboratively in fast-paced environments.…Hi, I am james Haruki, a highly accomplished full-stack developer with over 6 years experience, specializing in Web, Mobile, AI agent development, as well as Desktop applications.
Skilled in building scalable SaaS web platforms using modern front-end and back-end technologies. Highly proficient in developing intelligent AI agents and desktop apps with Electron, Tauri.
Known for consistently delivering projects on time and within budget, with a strong ability to work both independently and collaboratively in fast-paced environments.WWWW…
More info Expert in: C#, React Native, TypeScript + 4 more
I’m Emanuel Carneiro, a seasoned Full Stack Software Developer specialising in mobile and web apps built with .NET C#, React Native, React.js, and cloud architectures. I’ve delivered greenfield and legacy projects for startups, global brands, and government organisations, thriving in fast-paced teams or working independently. I love turning complex requirements into robust, scalable solutions and collaborating across product, design, and ops to ship high-quality software.
Outside work, I’m a builder at heart and enjoy exploring AI-assisted tooling to improve code and development processes. I’ve also got a long-running passion for eSports and music, which keeps me creative and driven.…I’m Emanuel Carneiro, a seasoned Full Stack Software Developer specialising in mobile and web apps built with .NET C#, React Native, React.js, and cloud architectures. I’ve delivered greenfield and legacy projects for startups, global brands, and government organisations, thriving in fast-paced teams or working independently. I love turning complex requirements into robust, scalable solutions and collaborating across product, design, and ops to ship high-quality software.
Outside work, I’m a builder at heart and enjoy exploring AI-assisted tooling to improve code and development processes. I’ve also got a long-running passion for eSports and music, which keeps me creative and driven.WWWW…
More info Expert in: Flutter, Dart, JavaScript + 14 more
I’m a Mobile Application Developer specializing in Flutter and AI-powered mobile solutions, with experience building high-performance cross-platform applications. I focus on creating scalable, clean, and user-friendly apps using Flutter, Dart, and modern mobile architectures such as MVVM and Clean Architecture.
My core expertise includes Flutter development, REST API integration, authentication systems (OAuth/JWT), state management (Provider/Riverpod), and backend integration with Firebase and Node.js. I also have experience integrating AI and Machine Learning features into mobile applications to create intelligent and impactful user experiences.
What differentiates me from other developers is my ability to combine strong mobile development skills with AI/ML integration and scalable backend systems, allowing me to deliver complete, production-ready solutions. I focus on writing clean, maintainable code and building applications that are optimized for performance and real-world use.
Employment and project experience
Mobile Developer & AI/ML Developer – Tech Hunters
April 2024 – Present
Mobile & Web Developer (Freelancer) – Freelancer.com
January 2025 – January 2026
Mobile Application Developer – The 4 Loop
August 2025 – October 2025…I’m a Mobile Application Developer specializing in Flutter and AI-powered mobile solutions, with experience building high-performance cross-platform applications. I focus on creating scalable, clean, and user-friendly apps using Flutter, Dart, and modern mobile architectures such as MVVM and Clean Architecture.
My core expertise includes Flutter development, REST API integration, authentication systems (OAuth/JWT), state management (Provider/Riverpod), and backend integration with Firebase and Node.js. I also have experience integrating AI and Machine Learning features into mobile applications to create intelligent and impactful user experiences.
What differentiates me from other developers is my ability to combine strong mobile development skills with AI/ML integration and scalable backend systems, allowing me to deliver complete, production-ready solutions. I focus on writing clean, maintainable code and building applications that are optimized for performance and real-world use.
Employment and project experience
Mobile Developer & AI/ML Developer – Tech Hunters
April 2024 – Present
Mobile & Web Developer (Freelancer) – Freelancer.com
January 2025 – January 2026
Mobile Application Developer – The 4 Loop
August 2025 – October 2025WWWW…
More info Expert in: Redis, Tailwind, TypeScript + 9 more
Have 8+ years of experience in full stack development in Node JS, React, and Devops tools. Here is the summary of my skill sets:
- Node.js, Express, Typescript, Nest.js
- React, Next.js, React Native
- PostgreSQL, MongoDB, Redis
- AWS Services like Lambda, Step functions, Cognito,
- Container like Docker, Kubernetes
- TDD/BDD using Jest, Supertest…Have 8+ years of experience in full stack development in Node JS, React, and Devops tools. Here is the summary of my skill sets:
- Node.js, Express, Typescript, Nest.js
- React, Next.js, React Native
- PostgreSQL, MongoDB, Redis
- AWS Services like Lambda, Step functions, Cognito,
- Container like Docker, Kubernetes
- TDD/BDD using Jest, SupertestWWWW…
More info Expert in: JavaScript, Webflow, Node.js + 8 more
Who I Am
Full-stack developer & technical consultant. I don't just write code — I ship products that make money.
What I've Built (not promised — built)
→ QuintessWealth — Fintech platform, 65% month-1 user retention
→ EfilingITR — Tax filing system serving 50+ clients live
→ VibrantHospital — Healthcare booking system, 600+ appointments processed
→ Zulal Wellness Resort (Qatar) & Holiday Inn (Thailand) — International client websites
→ AI Inventory Portal @ Jindal Steel — Cut manual errors by 40%
My Stack
Nextjs · MERN · AI/ML · n8n Automation · Python
I've worked in lean teams where one person owns the full stack — frontend, backend, deployment, and the midnight bug fix. No handoffs. No "that's not my job."
Why Clients Stay
You're not looking for a developer who disappears after delivery. You need someone who understands that your website/app is a revenue engine, not a college project. I've built for startups, hospitals, luxury resorts, and finance companies — every project shipped, live, and generating results.
Let's build.…Who I Am
Full-stack developer & technical consultant. I don't just write code — I ship products that make money.
What I've Built (not promised — built)
→ QuintessWealth — Fintech platform, 65% month-1 user retention
→ EfilingITR — Tax filing system serving 50+ clients live
→ VibrantHospital — Healthcare booking system, 600+ appointments processed
→ Zulal Wellness Resort (Qatar) & Holiday Inn (Thailand) — International client websites
→ AI Inventory Portal @ Jindal Steel — Cut manual errors by 40%
My Stack
Nextjs · MERN · AI/ML · n8n Automation · Python
I've worked in lean teams where one person owns the full stack — frontend, backend, deployment, and the midnight bug fix. No handoffs. No "that's not my job."
Why Clients Stay
You're not looking for a developer who disappears after delivery. You need someone who understands that your website/app is a revenue engine, not a college project. I've built for startups, hospitals, luxury resorts, and finance companies — every project shipped, live, and generating results.
Let's build.WWWW…
More info Expert in: TypeScript, JavaScript, HTML5 + 26 more
Hello! I am Vikram Kalta, a result-driven and client-focused software professional with over 7 years of experience in product engineering. I collaborate with stakeholders and cross-disciplinary teams to identify and resolve critical challenges, and my innovative approach has driven impactful outcomes across projects.
I am passionate about my field and committed to continuous self-improvement. I thrive in evolving technology landscapes and bring a forward-thinking mindset to deliver cutting-edge solutions that push the boundaries of innovation.…Hello! I am Vikram Kalta, a result-driven and client-focused software professional with over 7 years of experience in product engineering. I collaborate with stakeholders and cross-disciplinary teams to identify and resolve critical challenges, and my innovative approach has driven impactful outcomes across projects.
I am passionate about my field and committed to continuous self-improvement. I thrive in evolving technology landscapes and bring a forward-thinking mindset to deliver cutting-edge solutions that push the boundaries of innovation.WWWW…
More info Expert in: Solidity, TypeScript, Ethers.js + 11 more
I'm a senior full-stack blockchain developer from Turkey with 4+ years of professional experience building production-grade Web3 applications across DeFi, NFT marketplaces, and Telegram MiniApps. I specialize in Solidity and TON/Tact smart contract development with comprehensive testing using Foundry and Hardhat, and I excel at Ethereum/EVM integration and multi-stack frontend/backend development using Next.js, NestJS, React, and Ethers.js.
I secured government funding (TÜBİTAK) for blockchain R&D and speak on Web3 topics at conferences. I’ve architected and deployed numerous microservice ecosystems and led projects from concept to production while prioritizing security, performance, and reliability.…I'm a senior full-stack blockchain developer from Turkey with 4+ years of professional experience building production-grade Web3 applications across DeFi, NFT marketplaces, and Telegram MiniApps. I specialize in Solidity and TON/Tact smart contract development with comprehensive testing using Foundry and Hardhat, and I excel at Ethereum/EVM integration and multi-stack frontend/backend development using Next.js, NestJS, React, and Ethers.js.
I secured government funding (TÜBİTAK) for blockchain R&D and speak on Web3 topics at conferences. I’ve architected and deployed numerous microservice ecosystems and led projects from concept to production while prioritizing security, performance, and reliability.WWWW…
More info Expert in: React Native, JavaScript, React JS + 17 more
I'm a hands-on software architect and AI integration consultant with decades of experience building mission-critical applications across healthcare, enterprise, startup, and infrastructure environments.
I've led React teams of 7–10 developers at Florida Blue and Centene on HIPAA-compliant SaaS platforms. I'm now combining deep full-stack expertise with AI tooling to build autonomous agents, LLM-powered features, and AI-augmented development workflows. I'm a purpose-driven professional who enjoys engaging, training, and mentoring others.…I'm a hands-on software architect and AI integration consultant with decades of experience building mission-critical applications across healthcare, enterprise, startup, and infrastructure environments.
I've led React teams of 7–10 developers at Florida Blue and Centene on HIPAA-compliant SaaS platforms. I'm now combining deep full-stack expertise with AI tooling to build autonomous agents, LLM-powered features, and AI-augmented development workflows. I'm a purpose-driven professional who enjoys engaging, training, and mentoring others.WWWW…
More info Expert in: Bootstrap, Kotlin, WordPress + 19 more
As an entrepreneur by heart and having strategic thinking with strong business acumen. Engage with startups & enterprises in converting their ideas to an intuitive & high performing digital application. I worked my way to establish my own software development company - Savvient Technologies.
We are a fully custom Software development firm that is focused on digitally transforming our client's business. We achieve this transformation through our vast domain knowledge, wide industry expertise, and deep understanding of technologies/frameworks. As an expert team of iOS, Android, Web Applications with skills in Web development and SEO/SEM/SMM/SMO as well. Due to years of expertise and skills in the technology area, we are able to achieve a remarkable place in APPs creation Web portals and Marketing.
We are your Mobile app partner to help develop your idea, design, and develop your App as well as publish and market your app so that it can be noticed in a crowded world of Mobile Apps. Our years of digital marketing experience makes us a unique partner that can put you on the fast track to realizing your App dream.
Specialties: Mobile applications, Cloud-based solutions, PaaS, SaaS, Enterprise Content Management, Business Process Management, Work Flow, Web technologies, Integrated Solutions, Customer Relationship Management, Social Media, Project Management, Consultancy Services, Enterprise Architecture (IT), Web solutions, eCommerce & blockchain.
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Warm and enthusiastic, I will be your great supporter in taking your business to the next level.
✅ Schedule a 30-minute call to break the ice: https://calendly.com/harsh_savvient/30min…As an entrepreneur by heart and having strategic thinking with strong business acumen. Engage with startups & enterprises in converting their ideas to an intuitive & high performing digital application. I worked my way to establish my own software development company - Savvient Technologies.
We are a fully custom Software development firm that is focused on digitally transforming our client's business. We achieve this transformation through our vast domain knowledge, wide industry expertise, and deep understanding of technologies/frameworks. As an expert team of iOS, Android, Web Applications with skills in Web development and SEO/SEM/SMM/SMO as well. Due to years of expertise and skills in the technology area, we are able to achieve a remarkable place in APPs creation Web portals and Marketing.
We are your Mobile app partner to help develop your idea, design, and develop your App as well as publish and market your app so that it can be noticed in a crowded world of Mobile Apps. Our years of digital marketing experience makes us a unique partner that can put you on the fast track to realizing your App dream.
Specialties: Mobile applications, Cloud-based solutions, PaaS, SaaS, Enterprise Content Management, Business Process Management, Work Flow, Web technologies, Integrated Solutions, Customer Relationship Management, Social Media, Project Management, Consultancy Services, Enterprise Architecture (IT), Web solutions, eCommerce & blockchain.
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Warm and enthusiastic, I will be your great supporter in taking your business to the next level.
✅ Schedule a 30-minute call to break the ice: https://calendly.com/harsh_savvient/30minWWWW…
More info Expert in: Logo, WordPress, Web Design + 19 more
I'm an entrepreneur and product strategist with 15+ years of experience building, scaling, and supporting digital products across SaaS, marketplaces, eCommerce, Web3, Government, mobile apps, internal software, and education technology. I have a strong foundation in UX/UI, full-stack development, and technical architecture, with hands-on experience in WordPress, Node.js, React, Next.js, React Native, MongoDB, PHP, Laravel, Java, .NET, and more.
I specialize in planning and building CMS systems, 3rd-party API integrations, and designing scalable websites that sustain long-term growth. I built and sold a SaaS technology company and now partner with founders and growth-minded businesses to turn ideas into high-impact, scalable digital products.…I'm an entrepreneur and product strategist with 15+ years of experience building, scaling, and supporting digital products across SaaS, marketplaces, eCommerce, Web3, Government, mobile apps, internal software, and education technology. I have a strong foundation in UX/UI, full-stack development, and technical architecture, with hands-on experience in WordPress, Node.js, React, Next.js, React Native, MongoDB, PHP, Laravel, Java, .NET, and more.
I specialize in planning and building CMS systems, 3rd-party API integrations, and designing scalable websites that sustain long-term growth. I built and sold a SaaS technology company and now partner with founders and growth-minded businesses to turn ideas into high-impact, scalable digital products.WWWW…
More info Expert in: React JS, Github, JavaScript + 14 more
I am a Senior Full Stack Developer with over 12 years of experience in designing, developing, and deploying scalable web and software solutions, primarily in the retail and sourcing industries. I specialize in JavaScript, Python, and C++ and have worked extensively with modern frameworks like React, Node.js, and Django, as well as emerging technologies in Web3 and AI/ML.
I enjoy collaborating with cross-functional teams to integrate data science techniques and build robust, secure applications. My passion lies in optimizing performance, enhancing user experience, and mentoring junior developers. I’m also skilled in implementing CI/CD pipelines and containerization to streamline deployments.…I am a Senior Full Stack Developer with over 12 years of experience in designing, developing, and deploying scalable web and software solutions, primarily in the retail and sourcing industries. I specialize in JavaScript, Python, and C++ and have worked extensively with modern frameworks like React, Node.js, and Django, as well as emerging technologies in Web3 and AI/ML.
I enjoy collaborating with cross-functional teams to integrate data science techniques and build robust, secure applications. My passion lies in optimizing performance, enhancing user experience, and mentoring junior developers. I’m also skilled in implementing CI/CD pipelines and containerization to streamline deployments.WWWW…
More info Expert in: Beats, Music Theory, FL Studio + 19 more
No BioMore info
Expert in: HTML5, JavaScript, React JS + 8 more
I am a Full Stack Developer who specializes in developing small to medium sized web-based Projects. My strength lies in Front End development where I emphazise solid and simple UX and UI for my layout. I also have good experience in developing small backends and setting up deployment pipelines among many other tasks. I have a broad experience working for different renowned Icelandic companies that (among others) include the financial and healthcare/medical device sector. My previous projects consist of websites for these companies such as ossur.com, audur.is and alfred.is.
Whether you need to set up a website from scratch, migrate an older site to a newer technology or add features to your website I am willing to give you a free advise and then help you implement the appropriate action in the most efficient and simple way.…I am a Full Stack Developer who specializes in developing small to medium sized web-based Projects. My strength lies in Front End development where I emphazise solid and simple UX and UI for my layout. I also have good experience in developing small backends and setting up deployment pipelines among many other tasks. I have a broad experience working for different renowned Icelandic companies that (among others) include the financial and healthcare/medical device sector. My previous projects consist of websites for these companies such as ossur.com, audur.is and alfred.is.
Whether you need to set up a website from scratch, migrate an older site to a newer technology or add features to your website I am willing to give you a free advise and then help you implement the appropriate action in the most efficient and simple way.WWWW…
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