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$35/hr
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Hi, do you need a reliable developer who can take your SaaS or Fintech product from concept to scalable, compliant, and high performing software?
I specialize in building enterprise grade applications using .NET (C#), Angular/React, and cloud native architectures (Azure/AWS). My focus is not just writing code, it’s helping you create software that drives measurable business growth while meeting the highest standards of security and compliance.
🔹 What I Deliver
• Scalable SaaS Platforms, built on microservices, API driven, and future ready.
• Fintech & Enterprise Solutions, with strict adherence to ISO, GDPR, and HIPAA standards.
• Cloud Native Development, leveraging Azure & AWS for cost efficiency, performance, and resilience.
• End to End Ownership, from architecture and development to deployment, testing, and optimization.
🔹 Why Clients Choose Me
• Business First Approach: I align technical solutions with your goals, ensuring ROI.
• Proven Track Record: I’ve delivered SaaS platforms, secure fintech systems, and enterprise apps that are actively used by businesses today.
• Transparent Communication: Clear updates, no jargon, and reliable timelines.
• Quality & Trust: I treat every project like my own product, ensuring performance, security, and maintainability are built in from day one.
🔹 Let’s Build Something That Lasts
Whether you need to launch a new SaaS, modernize legacy systems, or develop a secure fintech platform, I bring the expertise to make it happen, efficiently, securely, and at scale.
✅ 𝗥𝗲𝗮𝗰𝗵𝗶𝗻𝗴 𝘁𝗵𝗶𝘀 𝗽𝗼𝗶𝗻𝘁 𝘁𝗲𝗹𝗹𝘀 𝗺𝗲 𝗺𝘆 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗵𝗮𝘀 𝘆𝗼𝘂𝗿 𝗮𝘁𝘁𝗲𝗻𝘁𝗶𝗼𝗻. 𝗜 𝐯𝐚𝐥𝐮𝐞 𝘆𝗼𝘂𝗿 𝘁𝗶𝗺𝗲, 𝗮𝗻𝗱 𝘁𝗵𝗲 𝐛𝐞𝐬𝐭 𝘄𝗮𝘆 𝗳𝗼𝗿𝘄𝗮𝗿𝗱 𝗶𝘀 𝗮 𝗳𝗼𝗰𝘂𝘀𝗲𝗱 𝗱𝗶𝘀𝗰𝘂𝘀𝘀𝗶𝗼𝗻 𝘁𝗼 𝗱𝗲𝗳𝗶𝗻𝗲 𝗱𝗶𝗿𝗲𝗰𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗺𝗼𝘃𝗲 𝗶𝗻𝘁𝗼 𝗮𝗰𝘁𝗶𝗼𝗻.
𝗔𝗽𝗽𝗿𝗲𝗰𝗶𝗮𝘁𝗲 𝘆𝗼𝘂𝗿 𝘁𝗶𝗺𝗲, 𝘀𝗽𝗲𝗮𝗸 𝘀𝗼𝗼𝗻.
𝐓𝐡𝐚𝐧𝐤 𝐲𝐨𝐮!
Zain Ahmad K.
has worked
.
Associated with
Hashmaker Solutions
$22/hr
100%
Job Success
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🌟 Senior Full-Stack Developer | Angular, React & .NET Core | Azure Cloud, DevOps & AI-Accelerated Engineering
I am a Senior Full-Stack Developer with 15+ years of experience delivering secure, scalable, and high-performance web applications using modern frontend frameworks and Microsoft-based backend technologies.
I specialize in building custom business solutions, from internal dashboards to enterprise-grade platforms, with a strong focus on clean architecture, security, and long-term maintainability.
In addition to traditional development, I leverage advanced AI-assisted development workflows to dramatically increase productivity and reduce delivery time—while applying senior-level engineering judgment to ensure correctness, performance, and production readiness.
✅ What I Offer
🔷 Backend & API Development
.NET Core–based APIs with secure authentication and clean architecture
Database-driven applications using relational and NoSQL databases
Microservice-oriented systems and containerized deployments
Modernization and migration of legacy applications
High-performance, scalable, and maintainable backend systems
🔷 Angular Frontend Development
Modern Angular applications with modular and scalable architecture
Component-based UI design with reusable and maintainable code
Responsive interfaces optimized for desktop and mobile
Secure API integration and real-time functionality
Forms, routing, state management, and performance optimization
🔷 React Frontend Development
React-based applications using component-driven architecture
State management and reusable UI patterns
Responsive and dynamic user interfaces
API integration and real-time data updates
Performance optimization and clean, maintainable code
🔷 Azure Cloud Services
Application Insights for monitoring, logging, and performance tracking
Service Bus for reliable messaging and system integration
Blob Storage for secure file and data storage
Key Vault for secrets, keys, and certificate management
Azure Functions for serverless processing and background jobs
App Service–based hosting for scalable web applications
Secure cloud architecture and environment configuration
🔷 Cloud & DevOps
Automated CI/CD pipelines for reliable deployments
Infrastructure as Code and cloud-based hosting solutions
Containerization and orchestration for scalable systems
Monitoring, logging, and production-ready deployments
🔷 AI-Accelerated Development & Programming
I actively use state-of-the-art AI development tools to significantly improve speed, accuracy, and efficiency—often achieving up to 10× faster delivery compared to traditional workflows.
🤖 AI Models & Tools
Claude Opus 4.5
OpenAI Codex 5.2
Advanced prompt engineering and multi-model workflows
AI-assisted coding, refactoring, debugging, and testing
🚀 How AI Helps Your Project
Faster feature development and prototyping
Improved code quality, readability, and test coverage
Early detection of bugs, edge cases, and performance issues
Faster architectural exploration and validation
Reduced development cost and time-to-market
🧠 Why Senior Experience Still Matters
AI is powerful—but it is not perfect.
With 15+ years of hands-on experience, I:
Validate and correct AI-generated code
Fix complex issues AI cannot solve (architecture flaws, concurrency issues, security risks)
Apply real-world production knowledge and best practices
Ensure long-term scalability, maintainability, and security
This allows me to deliver AI-level speed with senior-engineer reliability.
🔷 Additional Capabilities
Data visualization and reporting dashboards
Search optimization and caching strategies
Secure third-party service integrations
Performance tuning and scalability improvements
💡 Why Hire Me?
🧠 15+ Years of Enterprise & Startup Experience
⚡ Up to 10× Faster Delivery Using AI-Assisted Development
🤖 Expert in Claude Opus, Codex & AI-Driven Engineering Workflows
🔐 Security-Focused, Production-Ready Code
☁️ Azure-Ready & Cloud-Native Solutions
🤝 Clear Communication & Long-Term Reliability
💬 Let’s Work Together
If you’re looking for a reliable long-term developer who can design, build, and maintain Angular, React, and .NET Core applications on Azure—while leveraging AI to deliver faster and smarter—I’m ready to contribute.
Deepak T.
has worked
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$18/hr
100%
Job Success
Available now
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I am a Full-Stack Web and Mobile Developer with 8+ years of experience and 11,000+ hours worked on Upwork, helping clients build high-quality web and mobile applications.
With strong experience in both frontend and backend development, I can take your idea, Figma design, existing app, or business requirement and turn it into a clean, production-ready product. I work on web apps, mobile apps, dashboards, admin panels, SaaS platforms, API integrations, payment systems, Firebase/Supabase projects, and custom business tools.
I also use modern AI development tools like Claude, Cursor, GitHub Copilot, and ChatGPT to move faster, debug smarter, improve code quality, and deliver better results in less time. But I do not blindly depend on AI — every line of code is reviewed, tested, and structured properly before delivery.
What I can help you with:
- React, Angular, Ionic, and React Native app development
- Node.js backend and REST API development
- Mobile app development for Android and iOS
- Figma to pixel-perfect frontend implementation
- Firebase, Supabase, Stripe, Razorpay, and third-party API integrations
- Admin dashboards and SaaS platforms
- Bug fixing, performance improvement, and code refactoring
- AI-assisted development for faster delivery and better productivity
I focus on writing clean, maintainable code and building products that are easy to use, easy to scale, and easy to improve in the future.
Whether you need a new app from scratch, improvements to an existing project, or a reliable developer to support your team, I can help you deliver high-quality work with speed and clarity.
Sunil H.
has worked
.
Ukraine
$35/hr
92%
Job Success
$100K+ earned
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Hey there! 👋
I'm a seasoned Front-End developer with 6+ years, specializing in Angular and Ionic with a proven track record in delivering top-notch web applications. With a passion for clean, efficient code and a knack for problem-solving, I'm dedicated to crafting high-quality solutions that exceed expectations.
My expertise spans across:
✅Front-end: Leveraging Angular, Ionic to create intuitive and responsive user interfaces.
✅Design and Styling: Proficient in HTML, CSS, SCSS, LESS to ensure sleek and engaging designs.
✅Database Management: Experience working with Firebase, MongoDB, PostgreSQL and for efficient data handling.
I thrive in collaborative environments and take pride in delivering projects that not only meet but exceed client requirements. Let's team up to transform your ideas into impactful, scalable applications.
Looking forward to discussing how I can contribute to your project's success!
Andrii D.
has worked
.
$33/hr
100%
Job Success
$600K+ earned
Available now
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I am a Senior Fullstack Developer with over 15 years of hands-on experience in building and scaling Java , C# / Net , Angular applications for startups, enterprises, and SaaS platforms.
Currently, I’m working as the Chief Technology Officer at InventorSoft, a software development agency specializing in web and mobile solutions. I bring a strategic mix of technical depth, team leadership, and product vision to every project.
Why hire me🧐:
📌 Expert in Scalable Java and .Net Architectures
- Over 15 years of experience in developing Java, .Net, C#, Angular scalable applications from different domains.
- Backend systems built with Spring Boot (15+ years) – Delivered scalable microservices and high-performance business logic for enterprise-grade applications.
- ORM & data access with Hibernate – Applied advanced ORM techniques for efficient database interactions, query optimization, and data integrity in distributed systems.
- Frontend development with Angular & Thymeleaf
Designed and delivered 200+ robust backend systems for SaaS products, e-commerce platforms, and enterprise clients.
📌 Cloud-Native Platform Engineering
Specializes in building secure, scalable, cloud-native platforms using leading cloud providers:
- 8+ years of production experience with AWS – Deployed scalable, secure, and high-availability applications.
- 9+ years of hands-on Azure expertise – Delivered enterprise-grade solutions with Azure App Services, Azure DevOps, and SQL/Azure Storage.
- 5+ years of experience on Google Cloud Platform (GCP) – Built and deployed containerized microservices using GKE, Cloud Run, and Firebase.
📌 API-First & Cloud-Native System Design
- Strong background in API integration and microservice architecture.
- Created high-performance APIs for platforms serving 50K+ users, ensuring seamless third-party integration and scalability.
- Experienced in Docker & Kubernetes, enabling CI/CD pipelines and resilient containerized systems.
📌 Full-Stack Leadership & Agile Team Management
- Led and mentored teams of 5–25 developers through all stages of the SDLC—requirements gathering to deployment and maintenance.
- Specialized in building cross-functional teams for backend-heavy systems, modern UIs (React, Angular, Thymeleaf), and DevOps automation.
My latest achievement as a Software Architect:
🤝 Partnered with 45+ SaaS companies to design and deliver secure, scalable platforms using Spring Boot, AWS, and modern cloud services.
🚀 Helped 10 tech startups scale from MVP to production—selecting the right tech stack, defining cloud-native architecture, and assembling strong dev teams.
💼 Enabled 5 client acquisitions through the development of enterprise-grade software that attracted major buyers and investors.
🏭 Led a digital transformation project for a multi-billion-dollar oil company, delivering a secure, API-first platform that automated mission-critical operations.
🧩 Technologies I Specialize In
- Languages/Frameworks: Java, C#, .Net, Spring Boot, Hibernate, Thymeleaf, .Net Core
- Cloud Platforms: AWS (8+ years), Azure (9+ years), Google Cloud (5+ years)
- DevOps Tools: Docker (7+ years), Kubernetes (5+ years)
- Integration & Architecture: RESTful API integration, microservices, clean architecture, CI/CD pipelines
Clients that I am proud of:
💻 Shoeby – A fashion retail platform focused on modernizing the e-commerce experience with intuitive UI, product personalization, and seamless shopping journeys.
💻 CellRebel – Provides advanced mobile network analytics, helping telecom companies improve coverage and performance based on real user data.
💻 Blade – A technology-powered aviation company offering urban air mobility services, including helicopter and seaplane flights.
💻 Matics – A real-time operational intelligence system for manufacturers, offering production insights and process optimization across the factory.
💻 MedischeScholing – A medical e-learning platform that enables healthcare professionals to access, register for, and track accredited training and certifications.
➡️ Learn more about other projects on the InventorSoft portfolio
Keywords:
Java, Backend, Developer, Fullstack, Web, Cross-Platform, Mobile, Application, AI, OpenAI, Service, App, Development, Engineer, Integration, Build, Website, Expert, Spring boot, MySQL, Development Team, Integrated, SaaS Platform, remote, Full-stack, Senior, Software, Client Management, GraphQL, API, .NET, Asp.net, Programmer, Technical Lead, Dashboard, MVC, Developers, ASP.NET, AspNetZero, core, software, MAUI, C#, Angular, .Net, Core, Principal, Performance, Scalability, Microsoft, Blazor, SQL, Server, Frontend, React, Ruby on Rails, RoR/React, front-end, Tailwind, feature, JavaScript, ROR, TailwindCSS, Technical Staff
Maksym G.
has worked
.
Associated with
InventorSoft
$16/hr
100%
Job Success
$1K+ earned
Start of list.
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Hi! I’m Tolga, a Frontend Developer with 4 years of experience in Angular. I focus on building fast, responsive, and user-friendly applications. While I’m new to Upwork, my goal is 100% job success.
Tolga T.
has worked
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$18/hr
100%
Job Success
$60K+ earned
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I am a passionate programmer with extensive experience as a Full Stack Developer with expertise in React, Node.js, Angular, Javascript/Typescript, & React Native, . I have extensive experience of working on diverse Web, Desktop and Mobile Application Development Projects involving JavaScript/Typescript, React, Redux, Node.js, Angular, React Native, jQuery, AJAX, JSON, HTML5, CSS3, DOM, etc.
- Developing and maintaining all server-side network components.
- Ensuring optimal performance of the central database and responsiveness to front-end requests.
- Collaborating with front-end developers on the integration of elements.
- Designing customer-facing UI and back-end services for various business processes.
- Developing high-performance applications by writing testable, reusable, and efficient code.
- Implementing effective security protocols, data protection measures, and storage solutions.
- Running diagnostic tests, repairing defects, and providing technical support.
- Design and implement user interface components for JavaScript-based web and mobile applications using React ecosystem
- Work as a part of a small team that includes other react native developers, designers, QA experts, and managers
- Build app and UI components from prototypes and wireframes
- Work with native modules as and when required
- Use Native APIs for tight integrations with both platforms – Android and iOS
- Recommending and implementing improvements to processes and technologies.
- Superb interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude.
- Great organizational and time management skills.
- Availability to resolve urgent web application issues outside of business hours.
I have Experience with full SDLC, object-oriented programming, and agile methodologies I am dedicated to learning better ways to write clean and efficient code as well as solving Business Challenges for my Customers.
Rushabh S.
has worked
.
Associated with
Ordex Technology Solution Inc
$22/hr
99%
Job Success
$100K+ earned
Offers consultations
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13+ yrs of development experience | Flawless Coding | On Time | Quality Driven Delivery| Excellent Communication Skills | Round the Clock Availability | Product development | Leadership to drive results.
I create business grade web / mobile app solutions and strive to deliver software of brilliant quality using the SOLID principles, TDD approach, agile methods for rapid iteration.
➤ What my Upwork client says:
==========================
✅ "Great work on our backend (API) nodejs application and working with the AWS infrastructure and Mobile apps (iOS and Android). Looking forward to working with Krish and SentientGeeks team in the future."
✅"The Value provided by Krish and his team is absolutely incredible. We selected them after interviewing several agencies for a high impact project. They have gone above and beyond to solve all the problems, great communication and sincerity to stick to deadlines and keeping project on track. Great technical skills, they delivered a high quality solution for mobile and web app, got the apps approved from iOS and google play."
➤ Why Me?:
===========
★ Besides my technical exposure, I believe in seamless communication.
★ Upwork Top Rated Plus Developer with a proven track record.
★ I deliver what I commit. I prefer to discuss the challenges/issues upfront.
★ quality care and understand the balance between quality and quantity.
★ 100% Project Success on Upwork
➤ Technical Exposure:
===================
✅ Asp.Net, Asp.Net Core, .Net MVC, ASP.NET Web API, C#
✅ Experience with the Microsoft Power Platform like, Microsoft Power Automate, Power BI.
✅ Frontend: Angular (TypeScript), React,
✅ Backend: Python, NodeJS, .NET Core (Web API).
✅ State Management: Redux, NgRx, MobX etc
✅ Database: MongoDB, Firebase, MYSQL, SQL Server, PostgreSQL, Oracle
✅ Unit Test: Jasmine/Mocha, Enzyme/Zest, XUnit, NUnit
✅ Cloud: AWS (S3 bucket, Lambda, Elastic Beanstalk, ACF, EC2, AWS RDS, etc.), GCP, Azure, Vercel.
✅DevOps: CI/CD Pipelines, Github Repos, Test Plan, Build Strategy, Artifacts with Python & Nuget Package feeds, etc.
✅ Source Control: Github, GitLab, Bitbucket, TFS
✅ Docker: Dockerized a couple of web applications using Jenkins & and Kubernetes.
✅ Principles: SOLID, DRY, KISS
✅ Third-Party API: SMS & IVR Gateways (Twilio, Esendex), Payment Gateways (PayPal, Stripe, Authorize.NET, Google Checkout), Chat API (WebRtc, Quickblox), Social Media (Facebook, Twitter, LinkedIn)
✅ AI Expertise:
==============
★Generative AI (e.g.GPT-3, ChatGPT, OpenAI)
★ Natural Language Processing & Text Analysis - chat-bots, text parsing and information extraction, full-text search,
★ Machine learning - object detection and recognition, classification, clustering, forecasting
★ AI backend development (FastAPI, Docker, Gunicorn)
★ Time Series Forecasting: site traffic forecasting, churn prediction, insurance value estimation
★ Machine Learning frameworks such as Tensorflow, PyTorch, Sklearn, and Spark MLlib
★ Design and build Machine Learning and AI models
★ Deploy trained models in Production environments
✅Our process includes:
====================
1. Project Discovery: In this, we will schedule a call or chat session to understand the problem statement or the business/technology problem, you are trying to solve. We will provide you with free consulting and guide you on the requirement refinement, Business Model, Limitations, Ball-Bark Estimations, Our Project Development Methodology/Tools/Technologies, and Team, etc.
2. Technical Solution & Project Scope: Since now most of the requirement is captured, and we have an idea of what you are looking at. Based on our discussion, we will provide you with:
★ Detailed scope of work
★ Technical Details
★ Timeliness & Cost Breakdown
★ Project Milestones
★ Legal Agreement
3. Project Execution: Once the project is finalized and kickoff is done, we will start the project execution work using Agile/Scrum methodology. Our project execution steps include:
★ Wireframing & UI/UX Design Phase: As part of this process, our clients work with our award-winning UI/UX design team to bring the web/App concept to live.
★ Development (Coding) Phase: We share the regular web Links or builds for you to see the progress of your website and Mobile App projects.
★ Quality Assurance Phase: This includes UI/UX, Beta, and User Acceptance Testing.
★ Deployment and Maintenance: Once the app is live, we will provide you with free 30 Days of Maintenance within the scope.
✅Core Competency:
===================
- Microsoft platforms
-AI, ML solution
-MERN Stack Developer
-MEAN stack Developer
-Hybrid App Developer
-Web App Developer
-Mobile App Developer
-Cross-platform app Developer
-iOS Developer
-Android Developer
-Firebase Developer
-Python
I trust this description provides clarity. Eagerly awaiting our discussion.
Krishnendu B.
has worked
.
Associated with
SentientGeeks
$3M+
earned
$30/hr
100%
Job Success
$200K+ earned
Offers consultations
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Hi, I’m Parteek Sharma, a Top Rated Plus Full Stack Developer with a proven record of delivering high-quality, scalable, and secure web applications for global clients.
With 10+ years of experience in full-cycle development, I help businesses build powerful digital products - from idea validation to launch and beyond.
🔧 My Core Skills & Expertise
1. Front-End Development: Angular, React.js, Vue.js, HTML5, CSS3, JavaScript, TypeScript, Bootstrap, Tailwind
2. Back-End Development: PHP/Laravel, Node.js, Ruby on Rails
3. Databases & APIs: MySQL, PostgreSQL, RESTful APIs, GraphQL
4. Cloud & DevOps: AWS, Heroku, DigitalOcean, CI/CD pipelines
5. Other Expertise: WebSockets, Firebase, Git, Agile methodology, Performance Optimisation.
🚀 What I Can Do For You
1. Custom Web Development: Responsive, modern, and scalable websites.
2. Web App Development: Enterprise-grade and SaaS solutions.
3. API Development & Integration: Secure, seamless, and well-documented APIs.
4. Performance & Code Optimisation: Improve speed, maintainability, and scalability.
5. Proof of Concept (POC): Validate your ideas quickly and effectively.
6. Project Management: Experience with Jira, Trello, Asana, and Basecamp.
I focus on writing clean, maintainable code and delivering solutions that are secure, tested, and optimized for performance. Clients appreciate my clear communication, timely delivery, and collaborative approach.
If you are looking for a reliable partner to turn your idea into a successful project, let’s connect!
Parteek S.
has worked
.
Associated with
Backspacce Technologies
$20K+
earned
$30/hr
100%
Job Success
$100K+ earned
Offers consultations
Start of list.
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Hello, I am a Full Stack Developer with over 12 years of experience, specializing in front-end development with jQuery and JavaScript. My aim is to deliver optimized web applications that are error-free, with semantic and clean code.
Technology Stack:
Angular, SignalR, ASP.NET Core, MVC, C#
Node.js, Express.js, MongoDB
Highcharts, D3.js, jQuery, JavaScript
Bootstrap, SCSS, HTML5, CSS3, Tailwind CSS
SQL Server, MongoDB
Bitbucket, GitHub, GitLab, SVN, TFS
Jira, Asana, Trello
Zeplin, Figma, Photoshop (PSD to HTML)
Achievements & Impact:
Successfully led a team to develop a high-potential project.
Improved website performance for a client by 40% through code optimization and efficient use of resources.
Industries & Clients:
Extensive experience in e-commerce, finance, and healthcare industries.
Worked with clients ranging from startups to established enterprises, delivering tailored solutions to meet their unique needs.
Certifications & Skills:
Certified in Information Technology, enhancing my ability to deliver cutting-edge solutions.
Strong communication and problem-solving skills, ensuring smooth collaboration with clients and team members.
I look forward to speaking with you soon. Feel free to contact me here on Upwork so we can collaborate towards achieving success!
Feel free to adjust the examples to better fit your actual experiences and achievements!
Navin S.
has worked
.