Talent badge filter
Select talent location
Select talent time zones
$25/hr
100%
Job Success
$90K+ earned
Available now
Start of list.
End of list.
My journey started as a Full-Stack Engineering Expert and evolved into end-to-end product architecture, AI integration, and delivery leadership. Today, I design complete digital ecosystems, not just apps.
I’ve successfully delivered 100+ global projects across healthcare, fintech, SaaS, edtech, and eCommerce. As part of Biz4Solutions, I collaborate with senior designers, engineers, and cloud architects to deliver enterprise-grade solutions with startup speed.
Every product I build is designed to:
• learn from data
• scale seamlessly
• stay secure by design
What I Do (Business-Focused Services)
AI & Machine Learning
• Generative AI, LLM assistants (ChatGPT, Claude, Gemini)
• Predictive analytics, anomaly detection, fraud prevention
• NLP chatbots, voice AI, and sentiment analysis
SaaS, Web & Mobile Applications
• Multi-tenant SaaS platforms & admin dashboards
• Cross-platform mobile apps (Flutter & React Native)
• High-performance web apps (React, Next.js, Angular, Vue)
Cloud, IoT & Edge Computing
• AWS, Azure, GCP with Docker & Kubernetes
• IoT integrations (MQTT, Raspberry Pi), Edge AI
• Serverless infrastructure, CI/CD, autoscaling systems
Automation & API Integrations
• Workflow automation & RPA bots
• REST, GraphQL, and third-party API ecosystems
• Real-time data pipelines, dashboards & analytics
Core Technical Stack
Frontend: React, Next.js, Angular, Vue, Flutter, React Native
Backend: Node.js, Python (FastAPI, Django, Flask), Java, Laravel
Databases: PostgreSQL, MySQL, MongoDB, Firebase, Redis
Cloud & IoT: AWS, Azure, GCP, Docker, Kubernetes, MQTT
AI/ML: GPT-4, LangChain, TensorFlow, PyTorch, Hugging Face, SageMaker
DevOps & Security: CI/CD, HIPAA, GDPR, PCI-DSS compliance
Featured Projects
MindMentor: AI-powered personal coaching assistant using LangChain & real-time voice feedback
Number Sentry: SaaS analytics platform with Zoho API integration, 70% faster reporting
GoodCheckup: HIPAA-compliant tele-dentistry platform, 3× user engagement boost
Campus Cash: Location-based offers app with 20K+ active users
MotivateMD: Custom eLearning & mentorship ecosystem with smart progress tracking
Who I Work With
• Startups launching MVPs & AI products
• SMBs & Enterprises modernizing platforms
• Agencies seeking reliable offshore delivery partners
Clients typically achieve:
• 40–60% development cost savings
• 30–40% faster product launches
• Scalable platforms supporting thousands of users
Why Clients Choose Me
✔ AI-first problem-solving tied to real business outcomes
✔ Clear communication, weekly demos & full transparency
✔ Enterprise-grade quality, security & compliance
✔ Flexible engagement: MVP, dedicated teams, long-term scaling
✔ Proven experience across US, Europe & Asia time zones
Industries I Serve
Healthcare | FinTech | EdTech | SaaS | eCommerce | Logistics | Retail | Real Estate | Telecom | Social Platforms
Let’s Build Your Next Intelligent Product
If you’re building:
• an AI-powered SaaS platform
• a high-growth mobile app
• or a secure cloud automation system
I’ll help you go from idea to launch faster, smarter, and with lower risk.
👉 Message me to discuss your product vision and execution strategy.
Associated with
Biz4Solutions
$2M+
earned
$20.99/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
End of list.
• 16+ Years of Expertise in Mobile, Full-Stack & POS Development
• iOS Development | Swift | Objective-C
• Android Development | Kotlin | Java
• React Native | TypeScript | JavaScript
• Flutter | Dart
• Full-Stack Development
• POS / Retail Software Development
• UI/UX Design & Prototyping
• API Integration & Backend Development
• Web App Development | Python | Django | Node.js | React.js | Next.js
• Secure Coding & Performance Optimization
• AI/LLM Integrations (OpenAI, GPT, Whisper, etc.)
I help startups and enterprises turn ideas into scalable, high-performance mobile, web, full-stack, and POS solutions that drive real business results.
With 16+ years of experience in full-stack and mobile development, I’ve built production-ready apps across iOS, Android, web, cross-platform frameworks, and POS systems—delivering secure, scalable, and future-ready solutions.
Whether you're launching an MVP, scaling an existing product, building a retail/POS system, or integrating AI into your app, I can take your project from concept to deployment with clean architecture and reliable execution.
💡 What I Can Help You With:
✅ Native iOS (Swift, Objective-C)
✅ Native Android (Kotlin, Java)
✅ Cross-Platform Apps (React Native, Flutter)
✅ Full-Stack Development
✅ Web Apps (React.js, Next.js, Django, Node.js)
✅ POS / Retail Software Development
✅ API & Backend Development
✅ AI/LLM Integration (OpenAI, GPT, Whisper)
✅ Performance Optimization & Secure Coding
✅ UI/UX-Focused Development
🎯 Why Clients Work With Me:
✔ 100% Job Success on Upwork
✔ Clean, Scalable, Maintainable Code
✔ Strong Communication & Agile Collaboration
✔ Focus on Business Goals - Not Just Code
✔ On-Time Delivery
I don’t just build apps -I build products that are stable, scalable, and ready for growth.
If you’re looking for a reliable, experienced developer who understands both technology and business, let’s connect.
Let’s build something exceptional.
Gaurav
Key Capabilities:
#MobileAppDevelopment #iOSDeveloper #AndroidDeveloper #FlutterDeveloper #ReactNativeDeveloper #FullStackDeveloper #POSDevelopment #RetailSoftware #CrossPlatformApps #UIUXDesign #APIIntegration #BackendDevelopment #AppPerformanceOptimization #SecureAppDevelopment #AIIntegration #SaaSDevelopment #WebAppDevelopment #CustomAppDevelopment #AppDeployment #SwiftDeveloper #KotlinDeveloper #TopRatedFreelancer #AgileDevelopment #MachineLearning
Associated with
iTechnoLabs
$39/hr
100%
Job Success
$300K+ earned
Available now
Offers consultations
Start of list.
End of list.
I help businesses turn complex ideas into fast, scalable web applications and AI-powered products. My main stack revolves around JavaScript / TypeScript ecosystems, modern frontend frameworks, and reliable backend architecture designed for real production environments. I have 7 years of experience in full-stack engineering.
Over the past years, I’ve worked on SaaS platforms, enterprise tools, and high-traffic web systems, building features from concept all the way to deployment.
🔹 Full-Stack Development
I build complete web systems using React, Next.js, and Angular on the frontend, combined with Node.js and TypeScript on the backend. My goal is always the same: clean architecture, maintainable code, and systems that continue to scale as products grow.
🔹 AI Integration
I also develop AI-driven features such as automated reporting, intelligent assistants, data transformation tools, and AI workflows using modern LLM and OpenAI integrations. These solutions help automate processes and turn unstructured data into useful insights.
🔹 Backend & Data Architecture
On the server side I work with Node.js, GraphQL, REST APIs, and modular backend systems. For data storage I design scalable models using PostgreSQL, MySQL, and MongoDB, ensuring reliability, performance, and efficient data handling.
🔹 Infrastructure & Modern Development
I deploy and maintain systems using Docker, AWS, CI/CD pipelines, and structured Git workflows, ensuring stable production environments and smooth team collaboration.
🤝 How I Work
I collaborate closely with founders, product teams, and designers to turn ideas into working software. Clear communication, transparent progress updates, and scalable technical decisions are core parts of my development process.
🚀 Why Work With Me
I focus on building reliable, scalable systems that support real business growth, combining full-stack engineering with modern AI capabilities to create products that are both powerful and future-ready
Associated with
Codemotion - AI-Assisted Software Delivery Agency
$10M+
earned
$30/hr
83%
Job Success
$100K+ earned
Available now
Start of list.
End of list.
🏆 I am an Expert Website Developer & Designer
" BECOME A HONEST AND PERFECT DEVELOPER ! ” --This is my motto !
✅ I like your 100% satisfaction.
✅ You can give me your idea and I will deliver it successfully.
🥇 I specialize in delivering end-to-end digital solutions across WordPress, Wix, Webflow, Shopify, Shopify Plus, Squarespace, Magento, and custom eCommerce development. My expertise extends to Figma-to-Code conversion, Python, Django, Blockchain development, DevOps, PHP, MySQL, HTML5, CSS3, JavaScript, jQuery, and modern frontend frameworks. I build scalable, secure, and high-performance websites, web applications, and eCommerce platforms with a strong focus on user experience, speed optimization, SEO, AI integration, automation, and conversion-driven design. From custom themes and plugins to cloud infrastructure, CI/CD pipelines, smart contracts, and AI-powered solutions, I deliver robust, future-ready applications that help businesses innovate, scale, and achieve measurable growth.
THE MOST IMPORTANT THING IS WHAT I AM A WEB EXPERT WHO HAS VERY RICH EXPERIENCE OF REAL ESTATE websites, LISTING websites, SOCIAL Websites, LOCATION Websites, BLOG Sites, WordPress sites, E-Commerce sites, Landing Pages.
I have all necessary devices and softwares for website & web app development.
✅ During last 12+ years, I have made more than 4000+ Websites & Web Apps.
Thanks for reading my overview and I am looking forward to work on your projects.
Best regards
Manish Gupta
Associated with
Gainsboro Infotech
$25/hr
100%
Job Success
$40K+ earned
Available now
Start of list.
End of list.
🎨 Senior UI/UX Designer specializing in mobile apps, SaaS dashboards, and web design
✨ Figma expert: design systems, components, variants, design tokens
📐 User Experience and User Interface Design grounded in usability and conversion logic
🚀 From wireframes and prototypes to developer-ready handoff
Hi, I'm Anastasiya Skybchenko, a UI/UX designer focused on App Design, Mobile App Design, and Web Design for startups, scale-ups, and digital product teams. I create scalable, conversion-focused interfaces grounded in strong User Experience Design and User Interface Design principles.
My work combines UX & UI Design, Interaction Design, and structured Software Design thinking, so every screen supports usability, clarity, and business goals. I work across mobile and web, from MVP apps and complex SaaS platforms to full website redesigns.
📱 Mobile App Design
Complete iOS and Android App Design from wireframes to high-fidelity mockups
Native platform guidelines for iOS Human Interface and Android Material Design
Mobile-first Responsive Design and adaptive layouts
Onboarding flows, dashboards, and feature-specific UX
Interaction Design for multi-step processes and complex user journeys
UI/UX Prototyping in Figma for usability testing before development
💻 Web & SaaS Design
SaaS dashboards, admin panels, and complex software systems
Website Redesign with improved UX & UI structure and conversion logic
Responsive Web Design for desktop, tablet, and mobile
B2B platforms, enterprise software, and data-heavy interfaces
Landing pages and marketing sites with strong conversion focus
🛠 Tools & Process
Figma (auto layout, components, variants, design tokens, prototyping)
UX research, user flow mapping, and information architecture
Wireframing and low-fidelity exploration
High-fidelity Mockups and pixel-perfect UI
Structured design systems for scalable product growth
Developer handoff with clear specs, tokens, and implementation logic
Collaboration with engineering teams in agile environments
✅ UX Challenges I Solve
Simplifying complex flows through clear information hierarchy
Improving usability and engagement through UX & UI audits
Reducing churn with better onboarding and retention design
Building cohesive design systems for fast-moving teams
Translating product strategy into intuitive UI/UX
🎯 Industries I Design For
SaaS platforms, mobile apps, fintech, healthcare and telemedicine, fitness and wellness, e-commerce and marketplaces, real estate, edtech, social apps, and AI-first products.
🤝 How I Work
Clear discovery and product alignment before design starts
Iterative design with regular feedback and user validation
Design files structured for handoff, not just visual presentation
Honest input on UX trade-offs, scope, and feasibility
Available for one-off design sprints, MVPs, or long-term ongoing partnerships
Strong UX & UI improves engagement, reduces churn, and supports product growth. If you're building a mobile app, redesigning a website, or launching a SaaS platform, I'll help translate product logic into design that's intuitive, structured, and ready for development.
💌 Let's create something users love. Reach out to discuss your project.
Associated with
Weelorum
$700K+
earned
$4.25/hr
100%
Job Success
Available now
Start of list.
End of list.
Hey There,👋 I am a full-time freelancer here on Upwork. I am detail-oriented 𝐃𝐚𝐭𝐚 𝐄𝐧𝐭𝐫𝐲 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭 and have great experience in Data Extraction, Data Scraping, Web Research, Email List, Company Research and Individual Research as well. I have been working for more than 5 years in this field.
𝐒𝐤𝐢𝐥𝐥𝐬 𝐭𝐡𝐚𝐭 𝐈 𝐩𝐫𝐨𝐯𝐢𝐝𝐞:
✔️ Data Entry
✔️ Internet Research
✔️ Data Extraction
✔️ Data Mining
✔️ PDF Conversion
✔️ Virtual Assistance
✔️ List Building
✔️ Contact Research
✔️ Web Research
✔️ Accuracy Verification
✔️ Lead Generation
✔️ LinkedIn Lead Generation
✔️ Email Marketing
✔️ Real Estate Research
✔️ B2B & B2C Lead Generation
✔️ Skip Tracing
✔️ CRM Contacts & Clean up & Update
✔️ Email Handling
If you want to discuss your projects in detail, Please send me an 𝐢𝐧𝐯𝐢𝐭𝐚𝐭𝐢𝐨𝐧 𝐨𝐫 𝐝𝐢𝐫𝐞𝐜𝐭 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 for your job. I'll get in touch with you immediately.
Thanks for visiting my profile!
$30/hr
95%
Job Success
Available now
Start of list.
End of list.
𝗚𝗿𝗲𝗮𝘁 𝗔𝗜 𝗦𝘁𝗮𝗿𝘁𝘀 𝘄𝗶𝘁𝗵 𝗚𝗿𝗲𝗮𝘁 𝗗𝗮𝘁𝗮.
The success of any AI application depends on far more than selecting the right language model.
Reliable AI requires high-quality data pipelines, scalable infrastructure, intelligent retrieval, and
production-ready architecture that delivers accurate results under real-world conditions.
I help organizations build the data foundations behind modern AI products. My expertise
combines Data Engineering, Retrieval-Augmented Generation (RAG), Machine Learning, Vector
Search, and AI Infrastructure to transform fragmented business data into intelligent, searchable,
and scalable systems.
From enterprise knowledge platforms and semantic search to ETL pipelines, MLOps, document
intelligence, and AI infrastructure, I design solutions that support long-term growth while
maintaining performance, reliability, and operational efficiency.
𝗖𝗼𝗿𝗲 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀
• Retrieval-Augmented Generation (RAG)
• Enterprise Search
• Semantic Search
• AI Knowledge Bases
• Data Engineering Pipelines
• ETL / ELT Development
• Machine Learning Infrastructure
• MLOps & Model Deployment
• AI Analytics Platforms
• Intelligent Document Processing
• Recommendation Systems
• AI Infrastructure Consulting
𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲
Data Engineering
• Python • SQL • Apache Spark • Apache Airflow • Kafka
AI Infrastructure
• LangChain • LlamaIndex • Vector Databases • AI Evaluation • MLOps
Vector Search
• Pinecone • Weaviate • Qdrant • Elasticsearch • pgvector
Cloud
• AWS • Azure • Google Cloud • Docker • Kubernetes
Industries
• Healthcare • Financial Services • SaaS • HR Tech • Logistics • Manufacturing • Retail •
Education • LegalTech
I believe AI should be built on reliable engineering foundations. Every project is designed
around scalable architecture, clean data pipelines, retrieval accuracy, security, observability, and long-term maintainability. My goal is to help businesses create AI platforms that remain reliable as data, users, and business requirements continue to grow.
Associated with
OCloud Solutions
$30/hr
91%
Job Success
$100K+ earned
Start of list.
End of list.
👋𝗛𝗶, 𝗜'𝗺 𝗦𝗵𝗲𝘀𝗵𝗮𝗻𝗸 — 𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗠𝗘𝗔𝗡/𝗠𝗘𝗥𝗡 | 𝗦𝗮𝗮𝗦/𝗖𝗥𝗠/𝗘𝗥𝗣 | 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲/𝗜𝗼𝗻𝗶𝗰 | 𝗔𝗜/𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻
I help companies, startups, and agencies build 𝗵𝗶𝗴𝗵-𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝘄𝗲𝗯 𝗮𝗽𝗽𝘀, 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀, 𝗖𝗥𝗠𝘀, 𝗘𝗥𝗣𝘀, 𝐏𝐨𝐰𝐞𝐫 𝐁𝐈, 𝗮𝗻𝗱 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀 that are fast, scalable, and built to last. With𝟭𝟭+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗮𝗻𝗱 𝟮𝟬𝟬+ 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀, I bring a perfect mix of engineering depth, business understanding, and proactive communication.
🍔 𝐌𝐜𝐃𝐨𝐧𝐚𝐥𝐝’𝐬 𝐏𝐨𝐫𝐭𝐚𝐥 (𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 – .𝐍𝐄𝐓, 𝐌𝐕𝐂, 𝐂#, 𝐀𝐧𝐠𝐮𝐥𝐚𝐫 𝟏𝟎)
I designed and developed the entire 𝐌𝐜𝐃𝐨𝐧𝐚𝐥𝐝’𝐬 𝐢𝐧𝐭𝐞𝐫𝐧𝐚𝐥 𝐩𝐨𝐫𝐭𝐚𝐥, delivering a secure, scalable, enterprise-grade solution using cutting-edge Microsoft and JS technologies.
🏡𝗧𝗵𝗲 𝗜𝗻𝗱𝗶𝗮 𝗗𝗲𝗰𝗼𝗿 – 𝗠𝘆 𝗢𝘄𝗻 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 (𝗕𝗿𝗮𝗻𝗱 + 𝗔𝗽𝗽 + 𝗪𝗲𝗯𝘀𝗶𝘁𝗲)
After achieving success with international clients, I built my own full digital brand — 𝗧𝗵𝗲 𝗜𝗻𝗱𝗶𝗮 𝗗𝗲𝗰𝗼𝗿, developed end-to-end (design, backend, frontend, app, automation).
These projects reflect my capability to handle 𝐥𝐚𝐫𝐠𝐞 𝐜𝐨𝐝𝐞𝐛𝐚𝐬𝐞𝐬, 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 𝐚𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞𝐬, 𝐚𝐧𝐝 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬-𝐜𝐫𝐢𝐭𝐢𝐜𝐚𝐥 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬.
🏆𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐏𝐫𝐞𝐟𝐞𝐫 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞
🔥𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐅𝐫𝐞𝐞𝐥𝐚𝐧𝐜𝐞𝐫 – 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬
💰$𝟏𝟎𝟎𝐊+ 𝐞𝐚𝐫𝐧𝐢𝐧𝐠𝐬 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤
📌𝟐𝟎𝟎+ 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐞𝐝 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐚𝐜𝐫𝐨𝐬𝐬 𝐔𝐒𝐀, 𝐔𝐊, 𝐔𝐀𝐈, 𝐀𝐮𝐬𝐭𝐫𝐚𝐥𝐢𝐚 & 𝐄𝐮𝐫𝐨𝐩𝐞
🚀 𝟏𝟏+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞
🤝𝐊𝐧𝐨𝐰𝐧 𝐟𝐨𝐫 𝐬𝐦𝐨𝐨𝐭𝐡 𝐜𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧, 𝐩𝐫𝐨𝐚𝐜𝐭𝐢𝐯𝐞 𝐮𝐩𝐝𝐚𝐭𝐞𝐬, 𝐚𝐧𝐝 𝐳𝐞𝐫𝐨-𝐝𝐞𝐥𝐚𝐲 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲
💼𝐂𝐨𝐫𝐞 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧𝐬
🔹𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
MEAN, MERN, Node.js, Angular, React.js, Vue, Next.js, NestJS, Express, TypeScript
Computer Vision, Object Detection, Python, MLP, FastAPI, Deep Learning, Docker, OCR/Document AI
🔹𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
React Native, Ionic, Capacitor, Cordova, Flutter
🔹 𝐒𝐚𝐚𝐒, 𝐂𝐑𝐌, 𝐄𝐑𝐏 & 𝐂𝐮𝐬𝐭𝐨𝐦 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬
Enterprise software, business automation, workflow engines, multitenant SaaS, dashboards, analytics
🔹𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧
• Power BI + Automation + Integration Specialist
• DeepSeek, ChatGPT, LLMs
• NLP, OCR, image analysis & Hugging Face
• Conversational AI, chatbots, voice bots
• AI agents, call automation, data extraction
🔹𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐀𝐏𝐈𝐬
• HubSpot, Salesforce, Zoho, QuickBooks, Xero, Airtable, Pipedrive, Amazon APIs
• Stripe, PayPal, Braintree, Authorize.net
• Twilio, SIP Call Management, Mulesoft
🔹𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧
• Real-time EVM data systems and DeFi intelligence infrastructure
• Experience with mempool-style ingestion, transaction decoding, and protocol-level data pipelines
• Designed systems for real-time crypto analytics and trading signals (FutureScanX, Quatick)
• Strong focus on low-latency, event-driven architectures and high-throughput blockchain systems
• Interested in MEV, arbitrage detection, liquidation systems, and execution-layer intelligence
🔹.𝐍𝐄𝐓 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
C#, MVC, .NET Frameworks, SQL Server
🔹𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬
AWS, Lambda, Serverless, CI/CD, S3, Cloud Functions
💬𝐖𝐡𝐚𝐭 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐒𝐚𝐲 𝐀𝐛𝐨𝐮𝐭 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞
⭐Exceptional collaboration. Deep Azure expertise and perfect communication.”
⭐Flexible, patient, knowledgeable, and extremely professional.”
⭐Very proactive — always reaches out first to clarify details. Great experience.”
🚀If you're looking for:
✔️A developer who understands both technology and business
✔️Someone who can architect, develop, and launch complete digital products
✔️A reliable partner who delivers quality, not excuses
✔️A long-term technical resource you can trust
𝗟𝗲𝘁’𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝘂𝘀𝗲𝗿𝘀 𝗹𝗼𝘃𝗲 — 𝗮𝗻𝗱 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝘁𝗿𝘂𝘀𝘁.
Then I’d be happy to discuss your project. 𝗟𝗲𝘁’𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝘂𝘀𝗲𝗿𝘀 𝗹𝗼𝘃𝗲 — 𝗮𝗻𝗱 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝘁𝗿𝘂𝘀𝘁.
Let’s connect and bring your idea to life!
𝐂𝐡𝐞𝐞𝐫𝐬,
𝐒𝐡𝐞𝐬𝐡𝐚𝐧𝐤 𝐉𝐚𝐦𝐰𝐚𝐥
Associated with
Debugged Pro
$1M+
earned
$20/hr
99%
Job Success
$4K+ earned
Available now
Start of list.
End of list.
Full-Stack Website and WebApp Designer & Developer | 10+ Years Building High-Performance Digital Platforms | Free Consultation Available
I'm a full-stack web developer and UI/UX specialist based in Kolkata, India, with hands-on project experience across WordPress, Shopify, WooCommerce, Webflow, Wix, and PHP/Laravel, gained through my work at SentientGeeks Software & Consultancy a multi-client software delivery firm handling projects across the US, UK, EU, and UAE markets. I've worked across the full delivery lifecycle: requirements discovery, UX prototyping in Figma, front-end development, backend integration, payment gateway setup, and post-launch optimization.
I don’t just design websites, I engineer revenue-focused digital platforms built to perform.
𝐖𝐇𝐀𝐓 𝐈 𝐁𝐔𝐈𝐋𝐃
▸ 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬: Custom theme and plugin development, Gutenberg/FSE block editor, WP REST API, headless WordPress with WPGraphQL + Next.js, WordPress Multisite, performance tuning (Redis, Cloudflare, Core Web Vitals, LCP, CLS, INP), security hardening (OWASP Top 10, Wordfence, WP-CLI).
▸ 𝐒𝐡𝐨𝐩𝐢𝐟𝐲: Theme development (Liquid, Dawn, Online Store 2.0), custom Shopify apps (Remix + Polaris), Shopify Plus features (Flow, B2B catalogs, checkout extensibility), Hydrogen headless storefronts on Oxygen, Shopify Functions, Shopify Markets for multilingual/multicurrency stores.
▸ 𝐖𝐨𝐨𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞: Custom payment gateways (Stripe, Razorpay, PayPal), WooCommerce Subscriptions, Bookings, B2B/wholesale catalog logic, REST API extensions, large-catalog optimization using Elasticsearch (ElasticPress) and Redis object caching.
▸ 𝐌𝐮𝐥𝐭𝐢𝐯𝐞𝐧𝐝𝐨𝐫 𝐌𝐚𝐫𝐤𝐞𝐭𝐩𝐥𝐚𝐜𝐞: End-to-end marketplace builds with Dokan Pro, WCFM, WC Vendors, and MultivendorX Stripe Connect split payments and automated vendor payouts, vendor KYC onboarding, escrow models, commission engines, dispute resolution workflows, tax engines (TaxJar, Avalara, GST India), fulfillment integrations (ShipStation, EasyShip).
▸ 𝐖𝐞𝐛𝐟𝐥𝐨𝐰: CMS architecture (Client-First methodology, Finsweet), IX2 scroll and trigger animations, GSAP custom interactions, Memberstack and Outseta portals, Webflow Logic, Webflow Localization (Weglot), Airtable CMS sync.
▸ 𝐖𝐢𝐱: Custom development using Velo (Wix's full-stack JS platform), Wix Data collections, Wix Headless, Wix Automations, Wix Stores, Wix Bookings.
▸ 𝐔𝐈/𝐔𝐗 𝐃𝐞𝐬𝐢𝐠𝐧: High-fidelity Figma design systems with Variables and design tokens, Figma AI for accelerated component generation, Adobe XD prototyping, WCAG 2.2 accessible UI, Storybook component handoff, CRO (Hotjar, A/B testing, checkout funnel analysis), information architecture (user flow mapping, card sorting, sitemap design).
▸ 𝐏𝐇𝐏 & 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: PHP 8.x (OOP, SOLID principles), Laravel with Filament admin panels, REST API and GraphQL design, MySQL/MariaDB optimization, Docker, GitHub Actions CI/CD, AWS (EC2, S3, RDS, CloudFront), DigitalOcean.
▸ 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: Stripe Connect, PayPal, Razorpay, Salesforce, HubSpot, Zoho CRM, QuickBooks, Xero, Klaviyo, GA4 + GTM eCommerce tracking, Zapier, Make (Integromat), n8n, Algolia, Elasticsearch.
𝐀𝐝𝐝𝐢𝐭𝐢𝐨𝐧𝐚𝐥 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐏𝐫𝐨𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲
✔ Frontend Frameworks: React, Angular, Blazor
✔ Backend & APIs: Node.js, Express, .NET Core, ASP.NET (MVC), Classic ASP
✔ Scripting & Automation: Python
✔ Integration Expertise: RESTful APIs, third-party services, enterprise integrations, custom middleware
𝐖𝐇𝐀𝐓 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐆𝐄𝐓
Clear communication from day one. Accurate scoping before any code is written. Milestone-based delivery with written estimates. Full documentation on handover. I understand what clients are trying to achieve commercially not just technically which means I flag scope gaps early, suggest better approaches when I see them, and deliver something that actually solves the problem.
If you need a developer who can own a project end-to-end across WordPress, Shopify, WooCommerce, Webflow, or marketplace platforms let's talk.
Associated with
SentientGeeks
$3M+
earned
$20/hr
100%
Job Success
$60K+ earned
Available now
Offers consultations
Start of list.
End of list.
🚀 Building AI-Powered Products, SaaS Platforms & Mobile Apps That Scale
I help startups, founders, and growing businesses transform ideas into production-ready products, from MVP development to enterprise-scale platforms.
Over the last 7+ years, I've delivered AI applications, SaaS products, mobile apps, marketplaces, healthcare platforms, logistics systems, social networks, and business automation solutions used by thousands of users worldwide.
Unlike developers who only write code, I focus on product architecture, scalability, user experience, and business outcomes.
.
𝗥𝗘𝗖𝗘𝗡𝗧 𝗣𝗥𝗢𝗗𝗨𝗖𝗧𝗦 𝗗𝗘𝗟𝗜𝗩𝗘𝗥𝗘𝗗
• Novlt AI
AI storytelling platform with GPT workflows, voice-to-text, AI character generation, and publishing tools.
• Maiday AI
Enterprise AI workflow automation platform with SOP management, dashboards, document intelligence, and automation systems.
• ShipDistrict
Multi-tenant logistics and shipment management platform with workflows, dashboards, billing systems, and operational automation.
• MyTuur
AI-powered travel assistant featuring itinerary generation, multilingual experiences, and smart recommendations.
• StreamRebels
Live streaming platform with chat, moderation, tipping, subscriptions, and real-time engagement features.
💡 WHAT I BUILD
✔ AI-Powered Applications
✔ SaaS Platforms
✔ Mobile Apps (iOS & Android)
✔ Marketplace Platforms
✔ Healthcare Applications
✔ Business Automation Systems
✔ CRM & ERP Solutions
✔ Admin Dashboards
✔ Real-Time Applications
✔ Enterprise Workflows
🤖 AI & AUTOMATION
• OpenAI GPT-4
• Claude
• Llama
• LangChain
• RAG Architecture
• Vector Databases
• Whisper AI
• ElevenLabs
• AI Agents
• AI Workflow Automation
• NLP & Document Processing
📱 MOBILE APP DEVELOPMENT
• Flutter
• React Native
• SwiftUI
• Kotlin
• Firebase
• Real-Time Applications
• Offline-First Apps
🌐 FULL-STACK DEVELOPMENT
Frontend:
• React.js
• Next.js
• Angular
• TypeScript
• Tailwind CSS
Backend:
• Node.js
• NestJS
• PostgreSQL
• MongoDB
• Prisma
• Redis
• REST APIs
• GraphQL
☁️ CLOUD & DEVOPS
• AWS
• Docker
• Kubernetes
• CI/CD Pipelines
• GitHub Actions
• Supabase
• Firebase
🏆 WHY CLIENTS HIRE ME
• End-to-end product ownership
• Startup MVP to production expertise
• Scalable architecture and clean code
• Strong communication and Agile execution
• AI + SaaS + Mobile expertise under one roof
• Long-term product development partnerships
🏗 INDUSTRIES
AI & SaaS | Healthcare | Wellness | Logistics | Marketplace | Social Networking | Travel | Education | Fintech | CRM | ERP | E-Commerce | Business Automation
AI Developer | Full Stack Developer | SaaS Developer | Flutter Developer | React Native Developer | Mobile App Developer | Node.js Developer | NestJS Developer | React Developer | Next.js Developer | OpenAI Developer | GPT Developer | AI Agent Developer | RAG Developer | LangChain Developer | AWS Developer | Firebase Developer | Supabase Developer | PostgreSQL Developer | Marketplace Developer | Healthcare App Developer | CRM Developer | Enterprise SaaS Developer | Startup MVP Developer