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$45/hr
96%
Job Success
$200K+ earned
Available now
Offers consultations
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✅ .NET Full Stack Developer 20+ years of experience
✅ Build powerful .Net solutions that drive business growth
✅ C# .Net developer with 15+ years of experience
✅ Developed 50+ applications
✅ Crafted 200+ user-friendly interfaces that drive real business results.
The clients say
"It doesn't feel like outsourcing, but instead like we have our own remote developers."
"They had great soft and hard skills and were full of ideas and drive!"
I lead the fullstack and mobile development team at Itexus, a professional software development and consulting company focused on Fintech, Insurance, Healthcare, etc.
I have 20+ years of experience in the .net architect development of web and mobile applications, .net, python, node.js, java developer as well as javascript, react .net, angular, AI frameworks and libraries.
👨💻.NET Full Stack Expertise
.NET full stack – strong background in End-to-end development from database to UI using Microsoft stack
.NET Core – deep expertise, cross-platform backend services
.NET Angular – Full stack development on .NET backend and Angular frontend for enterprise-grade solutions
.net core angular – Building complete systems with seamless backend–frontend integration
.NET Core Angular – Scalable and secure web apps using .NET Core and Angular
Angular .NET solutions – Using Angular for UI and .NET for API and business logic
.net core developer – Proven experience delivering high-performance backend solutions using .NET Core
.net core react – Building robust, scalable web applications with .NET Core APIs and React frontends
c# .net developer – End-to-end development expertise using C# and the .NET ecosystem
c# .net core – Advanced solutions built on C# with .NET Core for modern, cross-platform applications
👨💻 BACKEND Development
Python: Expert in Python for server-side development
Frameworks: Proficient in Django and Flask for building web applications
Databases: Skilled in SQL, PostgreSQL, MySQL, and MongoDB for efficient data management
Architecture: Experienced in applying MVC patterns for scalable applications
APIs: Capable of integrating external services through REST and GraphQL
👨💻 FRONT END Development
Proficient in HTML5, CSS responsive, JavaScript
Experienced in React.js, Angular, Vue.js, react native, ionic, xamarin developer
Responsive, cross-browser, ui/ux designer, ux/ui dashboard, ui ux designer app
👨💻AI TOOLS
OpenAI API, DeepFace, ML/DL frameworks (TensorFlow, Keras, PyTorch, Scikit-learn), LangChain, Mistral, AgenticAI, Transformers
RAG + custom AI tools: Document recognition and processing, Market Grabber, project management bots, AI for telephony, video/audio analysis
Mobile App Development
Native Mobile Development: Android, Kotlin, Java, iOS, Swift, KMP, KMM.
Cross-Platform/Hybrid App Development: Flutter, Swift, Objective C, React Native, Xamarin, MAUI.
General Expertise
Website & Full Stack Development: Full stack development with ai .net full stack developer, .net software engineer, .net programmer, full stack developer, ai python full stack developer django, full stack web developer, full stack development, cms developer
DevOps/DevSecOps: AWS, Azure, Docker, Kubernetes, GitLab-CI, Ansible, Terraform, etc
Cross-platform app building with three.js, web application design, webflow web designer, website builders
Integration tools: Data integration, websockets, ABP Framework, discord, Autotask
Experienced in .net core web api, fullstack .net developer roles, with strong skills as a .net specialist. Skilled angular .net react developer, java developer with solid c sharp expertise. Worked on kogito for business automation, delivered ui ux-focused solutions. As an azure data engineer, handled scalable data pipelines. rust developer, python projects include backend developer tasks. Built app as a xamarin and web developer using java and javascript. Skilled in postgresql and web scrapping. Maintained legacy systems with .net webform. Collaborated with nft marketers, managed nft collab manage tasks. Full stack with react nodejs, modern react, including react typescript, react native developer roles. Acted as product owner in agile teams. Cloud deployments done on azure. Built interactive UIs using blazor.
Why Choose us
Microsoft certified talented developers and senior .net developer team
High QA standards, including qa engineer roles
Modern solutions: NFT programmer, metaverse, Microsoft .net, windows 10, Power Apps developer, SharePoint, market grabber
Scalable team: full stack software developer, front end programmer, ios developer, ui ux designer
Industries
Banking, Trading, Cryptocurrency, Asset Management, Lending, Retail, Real Estate & Property Management, Food Delivery, Entertainment, Hospitality, Construction, Sports & Fitness, Travel & Tourism, Wellness, Medical Dashboard, Marketplace, E-commerce, Automotive, Human Resources, Education, E-learning, AI Assistants
Seek new projects to put our .net ai, bring value to individuals, startups, companies.
Associated with
Itexus LLC 💚
$1M+
earned
$45/hr
100%
Job Success
$100+ earned
Offers consultations
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I help startups and businesses build scalable web applications, SaaS platforms, and operational systems that are fast, reliable, and designed for real-world growth.
With 12+ years of experience in full-stack development, I’ve worked on AI-powered platforms, enterprise systems, automation tools, eCommerce applications, and large-scale web products across multiple industries.
My focus is building clean, scalable systems that solve business problems not just shipping features.
What I Build
• SaaS Platforms
• Full-Stack Web Applications
• AI Integrations & Automation Systems
• Dashboards & Internal Tools
• Real-Time Applications
• API Integrations
• Backend Systems & Cloud Infrastructure
• Shopify & eCommerce Platforms
• Production-Ready MVPs
Tech Stack
Frontend:
React.js, Next.js, TypeScript, Tailwind CSS
Backend:
Node.js, Python, Go, Express.js
Infrastructure:
AWS, Docker, Kubernetes, CI/CD
Databases:
PostgreSQL, MySQL, Redis, ClickHouse
Selected Experience
• Built scalable SaaS platforms with modern frontend architecture and cloud-native backend systems
• Developed automation workflows and operational tools that improved business efficiency and reduced manual processes
• Optimized backend systems and infrastructure for high-traffic applications handling real-time operations
• Led end-to-end product development from architecture and deployment to scaling and maintenance
I care about building systems that are maintainable, scalable, and aligned with long-term business goals.
If you need a senior full stack engineer who can contribute beyond coding and help structure products properly from both a technical and operational perspective, let’s talk.
Bilal A.
has worked
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$20/hr
100%
Job Success
$900K+ earned
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With 15+ years of engineering experience, 28,000+ work hours deliverd on upwork, $2M+ earned as Ageny on Upwork, I help startups and enterprises build scalable, intelligent and high-performance products.
We specialize in a blend of AI/ML, DevOps, GoLang, and end-to-end Web & Mobile development, enabling clients to move from idea → architecture → development → deployment → growth.
Our Biggest Strength are in:
AI / Machine Learning
LLM integration, fine-tuning & prompt engineering
AI automation, workflows & copilots
Predictive analytics, NLP, recommendation systems
Vision models & model optimization for production
DevOps & Cloud Engineering
CI/CD setup (GitHub, GitLab, Jenkins)
Kubernetes, Docker & containerized architectures
AWS / GCP / Azure cloud infrastructure
High-availability, monitoring & cost optimization
GoLang Development
Scalable microservices
High-performance APIs
Distributed systems
Event-driven architectures
Full-Stack Web Development
React, Node.js, Angular, Laravel, PHP, Python
REST/GraphQL APIs
SaaS platforms, dashboards & enterprise solutions
Mobile App Development
Native iOS/Android
Flutter & React Native
Payment, subscription, social, GPS, chat & AI-powered features
Why Clients Hire Me:
✔ 28,000+ Upwork hours delivered successfully as Inheritx Solutions.
✔ $2M+ earned with long-term client relationships
✔ Top Rated performance with proven delivery track record
✔ Clear communication, structured execution and scalable architecture
✔ Backed by a strong technical team at Inheritx Solutions (when required)
We bring not just development — but architecture, strategy, optimization, and long-term technical scalability to every project.
If you need an engineer who can:
Build an AI-driven product
Set up DevOps pipelines or cloud infrastructure
Develop a GoLang-based microservices platform
Create a robust web or mobile application
Or take your MVP to a production-grade system
…I’d be happy to help.
Hire me if you want experience, clarity, and engineering that simply works — every single time.
Associated with
InheritX Solutions - AI/ML | Full-Stack (React, Node.js) | Mobile Apps (Flutter, React Native, Swift, Kotlin) | DevOps | $2M+ Earnings
$2M+
earned
$16/hr
92%
Job Success
$90K+ earned
Offers consultations
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I am a full-stack healthcare and technology engineer with 14+ years of experience delivering compliant, scalable, and intelligent systems across Healthcare, FinTech, Web3, AI Automation, Mobile, and Gaming. My primary focus is healthcare, building platforms that meet the most rigorous compliance standards while integrating seamlessly into real-world clinical ecosystems.
Healthcare Engineering & Compliance
I specialize in HIPAA, FHIR R4, HL7, GDPR, PIPEDA, and SOC2-compliant product development, with hands-on integration experience across Epic, Oracle Cerner, Meditech, and Athenahealth. I design and build telemedicine platforms, EHR/EMR systems, patient portals, remote patient monitoring (RPM) tools, AI clinical assistants, medical imaging platforms, ePrescription and pharmacy integrations, IoT wearable connectivity, lab & diagnostic APIs, and enterprise healthcare SaaS. Every system I deliver includes secure PHI handling, audit logging, encryption standards, and role-based access controls.
Key deployments:
1. Huma (global digital health, 70+ countries, 100M+ patients).
2. GoToDoctor (full telehealth ecosystem)
3. Biocalculus (AI cardiac monitoring with Bluetooth ECG streaming, cloud backend, and deep learning arrhythmia detection).
AI Bots & Intelligent Workflow Automation
I build NLP-driven, role-aware AI workflow agents that sit as an intelligent overlay on top of your existing application, reducing per-role workload without requiring a full platform rebuild. This approach is cost-efficient, non-disruptive, and has been deployed across both Web2 healthcare systems and Web3 decentralized environments. I integrate LLMs, build custom AI Workflow agents, and architect automation pipelines that scale with your team.
FinTech, Web3 & Blockchain
My FinTech experience covers crypto and stock trading platforms, investment dashboards, and DeFi tooling on Ethereum & Solana. I've built Web3 automation bots, smart contracts, and hybrid Web2/Web3 architectures, applying the same compliance and engineering rigor from healthcare into high-stakes financial systems.
Mobile Development
I am currently developing Kotlin/React Native/Flutter-based Android applications with a focus on healthcare, including real-time device streaming(wearable data), secure cloud data pipelines, and clinical-grade UI/UX. My mobile work spans patient-facing apps, clinician tools, and IoT device companions.
Gaming & Creative Tools
I've delivered high-concurrency systems for Asia's top-listed gaming companies and also built Canvas-based image editor/creator tools in the Web2 space, demonstrating range across demanding, performance-critical environments.
White-Label Enterprise CRM, POS, ERP & Inventory
I offer a pre-built, enterprise-grade white-label platform covering CRM, Point of Sale, Inventory Management, and ERP ready to launch under your brand. This saves months of development time and significantly reduces go-to-market cost for businesses needing a complete operational platform.
Core Stack: GoLang · Node.js · Nest.Js · Python · Rust || Kotlin · Flutter · React Native · AngularJS · React.Js || Ethereum · Solana || FHIR R4 · HL7 · HIPAA · GDPR · PIPEDA · SOC2
Browse my portfolio and past work for live examples across every domain. If you're building in healthcare or need a cross-domain engineer who delivers -- let's connect!!!
Associated with
Oodles Technologies
$5M+
earned
United Arab Emirates
$105/hr
100%
Job Success
Available now
Offers consultations
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I build the backend infrastructure behind trading platforms, prediction markets, and financial systems where milliseconds and reliability aren’t negotiable.
Recently architected a quantitative trading platform for blockchain prediction markets real-time wallet tracking, behavioral analytics, and data pipelines processing millions of events. Also building real-time stock market systems with high-volume data processing and low-latency requirements.
What I Deliver
Real-Time Trading Infrastructure
- High-frequency data pipelines, event-driven architectures, sub-100ms APIs, WebSocket streaming
Quantitative Systems
- Wallet & behavioral analytics, strategy backtesting infrastructure, on-chain data ingestion, signal detection
FinTech & Payments
- Stripe integrations, multi-currency, PCI-aware systems
- Migrated £2.4M in live subscriptions with zero downtime
Scale Without Breaking
- 10K → 1M daily transactions (100× growth)
- 40% AWS cost reduction (~$15K/month)
- 99.99% uptime
Technical Depth
- Go – Concurrent systems (10K+ goroutines), memory-efficient services (<100MB), gRPC, high-performance APIs
- Data Pipelines – Kafka, SQS, event-driven streaming
- Databases – PostgreSQL, TimescaleDB, DynamoDB, Redis
- Infrastructure – AWS/GCP, Kubernetes, full observability, zero-downtime deployments
- Blockchain – On-chain data engineering, wallet tracking, prediction market analytics
How I Work
- 15-min discovery call → architecture plan within 24h
- Daily updates, weekly demos, clear milestones
- Fixed-scope projects ($15–40K) or monthly retainers
- Available 8am–2pm EST, on-call during launches
Engagements
- Trading & market-data platforms
- Quantitative research & analytics infrastructure
- Scaling and hardening production systems
10+ years building financial systems. Top Rated Plus. 5-star reviews.
Building something that needs to be fast, correct, and always up? Let’s talk.
$45/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
End of list.
$400M+ in transactions processed across platforms we built. 100,000+ tickets sold on a product shipped from zero. 20+ countries reached by an EdTech app delivered end-to-end. I'm not listing what's possible — I'm listing what's already running in production.
I'm a full stack developer and software architect based in Israel, and the CEO of a 40+ engineer development agency. When you work with me, you get a senior technical partner who understands the code and the product — and a full team behind delivery when scope requires it.
🔹 Full Stack & SaaS Development
Scalable multi-tenant architectures, B2B dashboards, internal tools, and AI-integrated SaaS. Core stack: React, Next.js, Vue.js, TypeScript, JavaScript, Python, Node.js, Laravel — full stack web developer depth from database schema to UI.
🔹 Fintech & Banking
This is where I'm different from most full stack developers on this platform. We've built card issuing systems, treasury management platforms, AML/KYC pipelines, cross-border payment rails, and crypto-to-fiat flows. Live integrations: BlackRock, DocuSign, Salesforce, Rail API, Kraken, SEPA Instant. Production experience, not theoretical.
🔹 Mobile App Development
Native iOS (Swift) and Android (Kotlin) for security-critical applications. React Native for cross-platform. My mobile portfolio includes a hardware-encrypted messenger with a built-in crypto wallet, a DeFi app, and a React Native aviation booking system — real-world apps built for real stakes.
🔹 Web3 & Blockchain
EVM smart contract UIs, DeFi protocols, hardware-encrypted crypto wallets, seed-to-sale blockchain tracking, multi-chain no-code contract execution, tokenization platforms.
🔹 AI Integration
LLM integrations, OpenAI API, RAG pipelines, multi-agent workflow automation, Fathom AI analytics, ClickHouse data infrastructure. I build AI as a functional product layer, not a feature checkbox.
When you hire me as your full stack developer, you're not getting a solo freelancer bottleneck. You're getting a senior technical lead with backend, frontend, mobile, and DevOps teams — all behind one
point of contact, one contract.
Tech: Python · Django · FastAPI · React · Next.js · Vue.js · TypeScript · JavaScript · Node.js · Swift · Kotlin · React Native · PostgreSQL · MySQL · Redis · ClickHouse · AWS · GCP · Docker · Kubernetes · Solidity · Web3.js
Send me a direct message to get 30-minute session to map your architecture, align on tech stack, or define your MVP roadmap before development begins.
Associated with
BARVATECH LTD
$100K+
earned
$15/hr
97%
Job Success
Available now
Start of list.
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I provide senior-level guidance on building, scaling, and optimizing modern web applications, SaaS platforms, MVPs, dashboards, admin panels, and AI-powered products.
I have 6 years of Full Stack development experience, I help founders, startups, and development teams make the right technical decisions, avoid costly mistakes, and accelerate product delivery.
🚀 Full-Stack Expertise I Deliver
MVP Development & Launch Readiness
React.js & Next.js Frontend Systems
Node.js / Express / MongoDB APIs / FastAPI Backends
Stripe, Lemonway, Hubtel Integrations
Admin Panels & CRM Dashboards
Scalable SaaS Architecture
Third-party Integrations & Automation
App Optimization & Refactors
KYC Flows, Auth, Multi-Tenancy, GDPR Compliance
Project Rescue & Tech Debt Reduction
AI App Development
MVP Planning & Technical Roadmaps
API Design (REST & GraphQL)
Database Design & Optimization
Authentication & Authorization
AWS, Vercel & Cloud Infrastructure
Performance Optimization & Scalability
AI Integrations (OpenAI, Claude, RAG, LangChain)
📌Technologies I use:
Frontend: React, Next.js, TypeScript, Tailwind CSS, React Query
Backend: Node.js, Express, FastAPI, REST APIs, GraphQL
Databases: PostgreSQL, MongoDB, MySQL
AI: OpenAI, Claude, LangChain, RAG, Vector Databases
Cloud: AWS, Docker, Vercel, CI/CD
Payments: Stripe, Subscription Systems, Payment Gateway Integrations
🏥 Industries I’ve Helped Build In:
SaaS & Startups
Fintech & Insurtech
AI, DeepTech & Automation
Crypto, Web3 & Blockchain
HealthTech & Digital Health
Real Estate & PropTech
E-commerce, Retail & Marketplaces
Logistics, Supply Chain & Fleet
LegalTech & Compliance
Social Platforms & Non-Profits
EdTech & E-Learning
FoodTech & Hospitality
CleanTech & Energy
GovTech & Public Sector
My Approach
Understand Requirements → Review Architecture → Identify Risks → Recommend Solutions → Create Actionable Roadmap
Let’s turn your vision into reality, together. 🤝
Keywords:
Full Stack Developer • Senior Full-Stack Engineer • React Developer • Next.js Expert • Node.js Developer • AI Web Developer • TypeScript Engineer • Frontend Developer • Backend Developer • Full Stack Consultant • SaaS MVP Developer • Dedicated Programmer • Web Application Developer • Solution Architect Fintech & Payments: Stripe Integration • Payment Gateway Integration • Subscription SaaS • Stripe Billing • MX API • Banking Data Integration • Payroll Management System • Ledger Tracking • Transaction Systems • KYC Flows • Lemonway • Hubtel Integration • AWS Lambda • Amazon Web Services • AWS RDS • Vercel Deployment • Docker Containers • Serverless Architecture • CI/CD Pipelines • Cloud Infrastructure • Database Optimization • System Architecture • Software Architecture • Data Encryption • RBAC • Multi-Tenancy • GDPR Compliance • Secure Authentication • MVP Development • SaaS Platform • B2B SaaS • Minimum Viable Product • Dashboard & Admin Panels • CRM Dashboards • Web Application • Startup MVP • Figma to React • Codebase Cleanup • Code Review • Technical Audit • Project Rescue • Tech Debt Reduction • App Optimization • App Refactoring • Performance Optimization • Scalable Systems • Technical Roadmap • Development Team Guidance
Shahid S.
has worked
.
$18/hr
100%
Job Success
$1K+ earned
Start of list.
End of list.
I help startups and businesses build scalable SaaS platforms, custom web applications, AI-powered automation systems, and backend infrastructure.
My expertise spans the complete product lifecycle—from architecture and database design to frontend development, backend systems, third-party integrations, and deployment.
Over the years, I have worked on multi-tenant SaaS platforms, AI automation solutions, WhatsApp integrations, CRM systems, admin dashboards, workflow automation tools, marketplaces, and custom business applications.
Core Expertise:
• Full Stack Development (React, Next.js, NestJS, Node.js)
• SaaS Product Development
• Backend Architecture & APIs
• AI Automation & AI Agents
• Workflow Automation
• WhatsApp Business Integrations
• Database Design (MongoDB, PostgreSQL)
• Cloud Deployment & DevOps
• Blockchain & Web3 Applications
I focus on building reliable, production-ready systems that solve real business problems and scale with growth.
Muhammad K.
has worked
.
$30/hr
91%
Job Success
$70K+ earned
Offers consultations
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Hi there! I'm a Full-stack Web Engineer with over 5 years of experience specializing in building complete websites, including both frontend and backend components, as well as backends for Android and iOS apps. My expertise lies in using JavaScript frameworks and web development tools.
What I Do:
- I create websites that are dynamic, user-friendly, and stand out.
- Experienced in MERN (MongoDB, Express.js, React, Node.js) as well as Vue.js, Next.js, and Angular.js for building web applications.
- I can set up your website on various cloud platforms like Amazon EC2, Heroku, and Google Cloud.
- Skilled in working with different databases like MongoDB, MySQL, and ORMs.
- I can add payment features to your website using Stripe, PayPal, etc.
- I build websites that can interact with users, incorporating forms and live updates.
- Familiar with HTML5, CSS3, and JavaScript for creating the front end of websites.
- I use tools like GitHub, BitBucket, and GitLab for managing code versions.
- I can integrate your website with social media and other services like Google Maps, Sendgrid, and Twilio.
My Approach:
- I carefully plan and estimate the work to ensure your project is completed on time.
- I'm adept at finding and fixing issues to keep your website running smoothly.
- I keep in touch regularly, ensuring everything is clear and easy to understand.
- Even after completing the project, I'm here to help with any further support you might need.
I focus on using the latest and most effective methods to build your website. Ensuring my clients are happy and supported is important to me.
Thanks for checking out my profile!
Talha N.
has worked
.
$20/hr
100%
Job Success
Available now
Offers consultations
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👋🏻 Welcome to my Upwork profile! I am a Lead Game Developer, Unity Developer / Unreal Developer / Web 3 Game Developer & AR/VR expert with 8+ years of experience in the field
✅ Available on 🇺🇸 USA(EST) & 🇬🇧 UK Timezone🕰️.
My expertise includes
✅ Unity 3D
✅ Unreal 4 & 5
📱AR Technologies Includes:
✅ Vuforia/ Vuforia Cloud
✅ ARCore
✅ ARKit
✅ ARFoundation
✅ MAXST
✅ Kudan
VR Devices worked on:
✅ Oculus Quest
I have expertise in C#, MySQL, AWS, Unet, ARCore, ARFoundation, ARKit, Vuforia, Vuforia Cloud, MAXST, Kudan, augmented reality, AR, AR developer, augmented reality developer, mobile game development, Unity3D, Unity, game development, mobile game, Steam, PC game, console game, PS, PS4, Nintendo, and Switch.
With my full-stack development and design team, I can offer you high-quality and flawless coding services for mobile game development (Android, iOS, PC & web) and native & hybrid mobile app development (Android & iOS) with a perfect dashboard/admin panel. My main goal is to provide qualitative code with a flexible and stable architecture, tailored to your requirements, budget, and project goals.
I pride myself on having a 100% successful track record in the market with PC, console, mobile games, and AR apps. Deploying and maintaining games on dedicated servers is a piece of cake for me.
I offer a range of services, including awesome designs, high conversion rates, on-time delivery, quality-driven work, excellent communication skills, and round-the-clock availability. I always provide an individual approach to each client, ensuring that I fully understand their requirements and project goals.
If you're looking to launch an app or game that will go viral and change your life, or if you need a professional app or game to support your business, then I'm the right person for the job
Deploying and Maintaining games on dedicated servers is a piece of cake for me
I’m offering you a FREE consultation call where you will get:
☝Feedback on your project from a game development expert
✌Actionable advice about development and overall strategy
Just click that "Invite to Job" button and send me a message