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$38 hourly
Suliman S.
- 4.9/5
- (98 jobs)
✅ What I Offer: ✨ Mobile App Development: - Pixel-perfect UI designed from Figma - Seamless integrations with Firebase, Supabase, REST APIs, GraphQL - Push Notifications, Real-time Chat, Maps, Payments - Offline-first functionality to ensure your app works anywhere - App Store & Play Store deployment ✨ Full-Stack Web Development: - Front-End: React.js, Vue.js, Angular, with responsive and interactive UIs - Back-End: Node.js, Express.js, Python, ASP.NET, with API development - Database: MongoDB, PostgreSQL, MySQL, SQL Server - Cloud & DevOps: AWS, Azure, Docker, CI/CD pipelines 🌟 My Experience Includes: - Education Apps empowering learning through interactive solutions - Healthcare Systems improving efficiency and care delivery - E-commerce Platforms with seamless user experiences - Productivity Apps designed for performance and collaboration - Fintech Solutions ensuring secure and smooth financial transactions Whether you're an early-stage startup looking for an MVP or a growing business that needs robust, full-stack solutions, I’m here to help you create scalable, high-performance mobile apps and web applications. Let’s collaborate to build something amazing! 📌 Skill Tags: -React Native -Kotlin/iOS -Flutter -Firebase -Mobile App Development -Expo -Figma to App -iOS Development -Android App Development -MVP Development -Cross-Platform Development

iTextSharp
Microsoft Windows PowerShell
Twitter/X Bootstrap
Angular 2
RabbitMQ
Database Architecture
Docker
JavaScript
Azure DevOps
React
Node.js
Vue.js
C#
Azure Cosmos DB
ASP.NET Web API
$50 hourly
Alex M.
- 4.9/5
- (81 jobs)
Hi! I’m a Co-founder and Partner at DATAFOREST, where we focus on Product and Data Engineering. I've been working with data for over 13 years, with the last five dedicated to leading big-data projects and web development as a Solutions Architect. My expertise ranges from high-load Data Scraping, handling over 500 million web pages daily, to Process Automation, to Data Integration, managing an ETL pipeline that integrates data from over 50 sources, processing petabytes of data, to developing Advanced Software Solutions. With a solid background in digital project management and software development, I effectively tackle complex data challenges and am committed to enhancing our clients' efficiency and scalability. In the last seven years on Upwork, my team and I have completed more than 170 projects. We're proud to be 𝗧𝗢𝗣-𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦, which puts us in the top 3% of all freelancers on the platform. We also have a 100% Job Success Score and a 90% client return rate, which shows our dedication to doing great work. Our Agile approach ensures seamless product delivery. We enhance this with a product guarantee, confidentiality through NDAs, and post-delivery support to meet your ongoing needs. SERVICES ✅ Data Engineering ✅ High-load Data Scraping (eCom, Social Media, Real Estate, Lead Generation) ✅ Data Integration - seamless connection through APIs ✅ Data Management – ETL pipelines, Data Warehousing, Data Lakes ✅ AI/ML ✅ AI Adoption & GenAI ✅ Predictive Analytics ✅ BI and Data Visualisation Tools ✅ IT Infrastructure & Solution Architecture STACK & TECHNOLOGIES ⚙️ Data Extraction and Integration: Python ⚙️ ETL Tools and Data Pipelines: Databricks Workflows | AWS Glue | Google Cloud Dataflow ⚙️ Big Data Processing: Spark | Hadoop | Google Dataflow | Dask | Amazon Kinesis | Kafka ⚙️ SQL/NoSQL Databases: MySQL | PostgreSQL | Google BigQuery | MongoDB | DynamoDB | Redis ⚙️ Data Analysis and Machine Learning: Pandas | NumPy | Dask | SciPy | OpenCV | TensorFlow | PyTorch | Scikit-learn | XGBoost | Keras | spaCy ⚙️ GenAI: OpenAI GPT-3 | GPT-4 | Lama 2 | Llava | Bard | Mistral | Anthropic ⚙️ Visualization Tools and Libraries: Power BI | Looker | Quicksight | Grafana | Plotly | D3.js | Dash | Matplotlib ⚙️ Web Development Front-End: React.js | Redux | Redux-Saga ⚙️ Web Development Back-End: Python | Django Rest Framework | Flask What Makes Me Different: Proven Leadership: I lead projects that turn data into valuable insights, helping businesses grow and improve. Client Focus: I always put client needs first and customize our solutions to solve their unique challenges. Always Improving: I constantly look for new ways and technologies to keep our services top-notch. Let’s chat and see how we can work together to achieve your goals!

iTextSharp
Automation
Data Management
Data Preprocessing
Software Development
Web Application
ETL
React
Django Stack
API Integration
Data Warehousing & ETL Software
Web Scraping
Data Scraping
Python
Big Data
Data Engineering
$70 hourly
Evgenii R.
- 5.0/5
- (49 jobs)
Hello. From early 200x I develop wide range of commercial products including desktop application, large scale enterprise applications and web sites. Starting with C++ and WinApi now I developing on C# and .Net. I'm highly focused on application performance, usability, maintainability, portability, and scalability. I strictly follow the Object Oriented Programming paradigm and use Design Patterns, where appropriate. Also I'm experienced in database design/implementation and use all means necessary to achieve maximal data consistency, integrity and availability. 1st place in SQL and top 10% in C# Upwork tests. Web Development: HTML 5 JavaScript ASP.NET MVC ASP.NET Core Angular Razor Desktop Development: WPF XAML Winforms Telerik Controls Data Base: Entity Framework NHibernate SQL Microsoft SQL Server Oracle PostgreSQL MySql

iTextSharp
Image Processing
Oracle PLSQL
Model View ViewModel
OpenCV
C++
SQL
C#
jQuery
.NET Framework
HTML5
$45 hourly
Minaxi M.
- 4.5/5
- (63 jobs)
🌟 𝐌𝐢𝐜𝐫𝐨𝐬𝐨𝐟𝐭 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐏𝐫𝐨𝐟𝐞𝐬𝐬𝐢𝐨𝐧𝐚𝐥 🏅 𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 🏆 𝟑𝟎+ 𝐒𝐮𝐜𝐜𝐞𝐬𝐬𝐟𝐮𝐥 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐎𝐧 𝐔𝐩𝐰𝐨𝐫𝐤. 🏅 𝟏𝟖𝟎𝟎+ 𝐔𝐩𝐰𝐨𝐫𝐤 𝐇𝐨𝐮𝐫𝐬 ✅ 𝐒𝐡𝐚𝐫𝐞𝐏𝐨𝐢𝐧𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐏𝐨𝐰𝐞𝐫 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 (𝐏𝐨𝐰𝐞𝐫𝐀𝐩𝐩𝐬, 𝐃𝐲𝐧𝐚𝐦𝐢𝐜 𝟑𝟔𝟓, 𝐏𝐨𝐰𝐞𝐫 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐞, 𝐏𝐨𝐰𝐞𝐫 𝐁𝐈) | 𝐎𝐟𝐟𝐢𝐜𝐞 𝟑𝟔𝟓 𝐚𝐧𝐝 𝐌𝐢𝐜𝐫𝐨𝐬𝐨𝐟𝐭 𝟑𝟔𝟓 𝐄𝐱𝐩𝐞𝐫𝐭 Hi, I have been working on SharePoint and O365 technologies for more than 10 years. I'm a Microsoft Expert. 1. Specialist in Microsoft SharePoint Server 2013, 2016, 2019 and SharePoint Online. 2. SharePoint Framework (SPFx) Custom Web part development. 3. Creating Canvas and Model Driven Power Apps 4. Creating Power Pages 5. Creating Power Apps linked with Sharepoint list, Dataverse table and SQL Table 6. Creating Reports and Dashboards using Power BI. 7. Creating email communications and other automated tasks using Power Automate. 8. Managing Power Platform Administration and permissions. 9. Integrating external application to SharePoint or Office 365. 10. Expert at technologies and frameworks like HTML, CSS, JQuery, JavaScript, Bootstrap, ReactJS, TypeScript, MaterialUI, PnP.js, Fluent UI and creating RestAPIs. 11. Worked on SharePoint, Dropbox, GDrive Migration Tasks. 12. Worked on creating custom Intranet using all kinds of out of the box webparts and custom webparts. 13. Worked on many Global and SharePoint Administrator Tasks on M365 and Office 365 like user management, permission management, site creation, site changes, site permissions etc. 14. Worked on creating Outlook and Teams Add-ins and Teams Apps. If you work with me, you can expect high-quality results, clear and ethical communication, attention to detail, eye for aesthetics, and a personalized, professional, and friendly service. Looking forward to working with you!

iTextSharp
Microsoft Project
React
Microsoft Certified Information Technology Professional
Office 365
Microsoft Certified Professional
Microsoft Power BI
Microsoft Outlook
Microsoft Teams
Microsoft Dynamics 365
Microsoft Power Automate
Microsoft PowerApps
Microsoft SharePoint
Microsoft SharePoint Administration
Microsoft SharePoint Development
$42 hourly
Kokul J.
- 4.6/5
- (79 jobs)
I am a Microsoft Certified AI Engineer with a vision to "change lives" and expertise in developing cutting-edge AI solutions, leveraging technologies such as Azure services, chatbot systems, invoice processing, and website scraping. I have a strong programming background and a customer-centric approach, delivering high-quality projects on time and within budget. While most of my projects are bound to NDA, you can find 5-star reviews of my work on my UpWork profile. I am passionate about staying up-to-date with the latest advancements in AI and using emerging technologies to drive innovation and business growth. Additionally, with a strong background in automation, process optimization, specializing in Power Automate and leverage AI to mimic human activities to the extent we can as of now. Throughout my career, I have successfully completed impactful projects for multinational corporations and diverse industries. Some of my notable achievements include leading a migration project from UIPath to Power Automate, automating financial processes, developing solutions for chargeback automation, and revolutionizing order management for a furniture firm. I have also contributed to the automation of various business processes within an accounting firm. With proficiency in Power Automate components and certifications in Data Analysis and AI Engineering, I am committed to staying updated with industry trends. My goal is to drive efficiency, optimize processes, and empower organizations to achieve their goals through successful automation projects.

iTextSharp
ChatGPT
.NET Core
Microsoft Power BI Development
Microsoft Bot Framework
Azure IoT HuB
Microsoft Power Automate
Flask
Chatbot Development
Azure App Service
Microsoft Power BI
Microsoft Azure
JSON
API
Python
C#
$40 hourly
Igor V.
- 5.0/5
- (27 jobs)
Greetings! I'm a senior web developer and certified java programmer with 20+ years of experience incorporating user and business requirements into cost-effective, secure and user-friendly solutions. I have a strong background in IT, Manufacturing & Business Process Automation, Neural Networks. I'm currently focused on full-stack software development, building projects from ground up. Technology Summary Java, J2EE, JavaScript, HTML5, Node.js, MongoDB, SQL, Linux, AWS, C++, Rust, AngularJS, React

iTextSharp
Back-End Development
Amazon ECS
Angular 2
RESTful API
Rust
Node.js
React
Spring Boot
API
JavaScript
Java
SQL
C++
MongoDB
$30 hourly
Nitin K.
- 5.0/5
- (88 jobs)
Unlock the full potential of Microsoft SharePoint and the Office 365 Suite (SharePoint, Teams, OneDrive, Planner, Power Platform, and more) to supercharge your business productivity. Let's collaborate to automate your operations and pave the way for sustainable growth. I'm eager to partner with you on this exciting journey! How I Can Empower Your Business: ✅ Craft, develop, and implement tailor-made applications and workflow automation solutions using the formidable Microsoft Power Platform, custom-fit for your industry-specific needs. ✅ Elevate your SharePoint environment with SPFx, breathing new life into your document management system, content management system, and specialized repositories through innovative web parts, extensions, and a deep understanding of SPOM, CSOM, JSOM, and Rest API. ✅ Seamlessly transition and modernize legacy SharePoint versions, including 2007, 2010, 2013, and 2016, leveraging OOTB WebParts, OData Rest APIs, PnP JS, Graph APIs, and ensure a consistent corporate brand. ✅ Expand your enterprise's horizons by enhancing collaboration within Microsoft Teams through Tabs, Bots, Web Hooks, and advanced customization. ✅ Harness my extensive experience in full-stack development to create robust web and mobile applications that meet your unique requirements. ✅ Effortlessly integrate legacy applications and custom data sources with your Microsoft business applications, eliminating the need to juggle multiple disparate solutions. ✅ Tap into the hidden potential of the Microsoft Office 365 Ecosystem. ✅ Seamlessly migrate your workloads to Microsoft Azure, transition your CRM to Microsoft 365, or make a smooth switch to Office 365 – I've got you covered. Why Collaborate with Me? 🚀 Solutions-focused consultancy that goes beyond task execution. 🚀 Over a decade of hands-on experience in web applications. 🚀 Microsoft Certified Professional, with a deep understanding of software and web development architecture. 🚀 Punctual project delivery, often ahead of schedule. 🚀 Meticulous project documentation to ensure clarity and transparency. 🚀 Employing cutting-edge tools for real-time project visibility and progress tracking.

iTextSharp
Microsoft Windows
Microsoft Teams
Microsoft Bot Framework
Service-Oriented Architecture
TCP/IP
Vonage
WebRTC
Microsoft Azure
Microsoft SharePoint Designer
Microsoft Active Directory
Microsoft Office SharePoint Server
Azure DevOps
ASP.NET MVC
$22 hourly
Sourabh S.
- 4.8/5
- (312 jobs)
✅ Top Rated Profile ✅ All 5.00 ★★★★★ Feedback ✅ 33,000 + Upwork Hours ✅ 300+ Upwork Jobs ✅ Top Rated Plus ✅ 100% Job Success ✅ 100% Client Recommendation ✅ Proven Track Record & Guarantee of High-Quality Product Delivery --------------------------------------------------------------------------------------------------- With over 12 years of experience in the software development industry, I specialize in full-stack development, leveraging a wide range of technologies to deliver high-performance, scalable, and user-centric applications. My extensive experience includes both back-end and front-end development, AI integration, and working with a variety of third-party APIs to create seamless, automated systems. Core Expertise: ✅ Back-End Development: Expert in PHP frameworks (Laravel, CodeIgniter) and Node.js, designing robust, scalable server-side applications. ✅ Front-End Development: Proficient in modern JavaScript frameworks such as React, Angular, Vue.js, and Next.js, crafting dynamic and responsive user interfaces. ✅ AI & Machine Learning Integration: Solid experience with AI and ML technologies, including building and integrating intelligent features like chatbots, predictive models, recommendation engines, and NLP-driven applications. I have successfully implemented AI-based solutions using platforms like TensorFlow, PyTorch, OpenAI, and more, providing clients with smarter, more efficient applications. ✅ API Integrations: Skilled in integrating with a variety of third-party APIs to enhance application functionality, including but not limited to: * Stripe & PayPal (payment processing and subscription management) * QuickBooks & Xero (accounting and financial management) * Zapier (automation and workflow management) * Google APIs (Maps, Analytics, Firebase) * Twilio (SMS, voice, and communication services) * Mailgun & SendGrid (email services) * Shopify & WooCommerce (e-commerce platforms) * Slack (team collaboration and bot integrations) ✅ Project Management & Agile Methodologies: I bring strong project management skills to ensure timely delivery and quality in every project. Comfortable working in Agile environments, using tools like Jira, Trello, and Asana to keep projects on track. ✅ Version Control & Collaboration: Highly proficient in using Git for version control and collaboration, ensuring seamless code management and team workflows. Familiar with GitHub, GitLab, and Bitbucket for repository management. ✅ Cloud Hosting & Deployment: Experienced with various cloud platforms such as AWS, Google Cloud, Azure, and DigitalOcean for hosting and deploying applications. I ensure smooth and efficient deployment pipelines, scaling infrastructure to meet growing demands, and optimizing server performance. ✅ Continuous Integration/Continuous Deployment (CI/CD): Proficient in setting up CI/CD pipelines for automated testing, integration, and deployment, improving the efficiency and reliability of software delivery. Why Work With Me? ✅ Full-Cycle Development: From concept to deployment, I handle everything, including development, testing, deployment, and post-launch maintenance. ✅ AI-Driven Solutions: I am passionate about leveraging AI to enhance user experiences, streamline processes, and deliver intelligent solutions. ✅ Proven Track Record: Over the years, I've worked with a wide range of clients, from startups to established businesses, delivering high-quality solutions that drive success. ✅ Adaptable & Collaborative: Whether you're a startup or a well-established company, I adapt to your team, tools, and methodologies, ensuring smooth collaboration and delivery. I am excited to help you bring your project to life—whether it’s a complex web application, an AI-powered solution, or seamless API integrations. Let’s work together to build something amazing!

iTextSharp
Vue.js
Mobile Development Framework
Web Design
Full-Stack Development
Graphic Design
Plugin Development
Web Development
Mobile App Design
WordPress Development
Payment Gateway Integration
Laravel
PHP
API Integration
React Native
Angular
$30 hourly
Divyeshkumar G.
- 4.7/5
- (295 jobs)
We have booked over 53,000+ hours with revenues exceeding $2.5 million, maintaining a 100% project completion rate, a 96% job success rate, and hundreds of satisfied clients with an average rating of 4.90. Client Feedback: Discover our exceptional service through client reviews and the volume of work detailed on our profile. We take pride in our extensive roster of delighted customers. Core Expertise: We specialize in C#, ASP.NET, MVC.NET, .NET Core, Azure, AWS, Azure Data Factory (ADFs) and AI Integration. Skills: Our expertise spans designing effective user interfaces, crafting database architectures, developing data structures, implementing client/server architectures, creating multi-threaded applications, and cloud computing. We also excel in web development and MSSQL. Industry Specialization: We serve various sectors, including Automotive, E-learning, and Fintech. Our skills extend to Content Management Systems (CMS), web and graphic design, blogs and forums, SEO-friendly websites, Web 2.0 developments, Microsoft Dynamics CRM, and ERP software development. Our expertise includes: Software Development & Maintenance services ERP Software development and maintenance Windows App Development: Electron.js(Chromium Browser Engine), .NET/C# ASP.NET website development & performance optimization API Integration Social media (Facebook, LinkedIn, Twitter), Google APIs, Google Maps The Second Payments Services Directive (PSD2), Strong Customer Authentication (SCA), 3-D Secure (3DS) Expert Implementing machine learning models, natural language processing, and data analysis. Development and maintenance of online stores, and payment gateway integration. GoHighLevel Certified Developer We provide the next QA Services: ________________________ Manual/Automation Testing Functional Testing/Regression/Acceptance Testing Performance Testing Security/Penetration Testing Usability Testing Mobile App Testing (IOS / Android) Strong knowledge of HTML, CSS, and SQL programming User Acceptance Testing Experience in SOAP API / REST API/ GraphQL GitHub / CI / CD / Jenkins Linux / Windows / OS X-based systems API Testing Tools like Postman and SoapUI Test Automation Framework Development Exploratory Testing Test Data Management and Generation Compliance Testing for Standards and Regulations; Payment Method Integration: Paypal Authorize.Net Stripe Amazon Payments SecurePay Square Payments If you’re interested in our profile and experience, please feel free to reach out if you’d like to discuss anything further.

iTextSharp
Microsoft SQL Server
C#
ASP.NET MVC
Umbraco
Microsoft Windows
CRM Software
ASP.NET
Entity Framework
Microsoft Visual Studio
ASP.NET Core
Azure App Service
ERP Software
.NET Framework
$50 hourly
Imran R.
- 4.9/5
- (56 jobs)
I am a solution and cloud architect working primarily in .NET technology stack. I have over two decades of experience. I have extensive experience in creating the microservices based solutions from scratch having created more than five of them over the past five or so years. I have been involved in large scale solutions for public companies in the US and Australia. If you need to get started with a new complicated project or with a brown-field project, I can quickly jump and help you. I can provide a cloud-native solution as I am AWS certified. The main tenets of my interaction with you are: • Clear and consistent communication. My number 1 priority is that you should know the state of the project at every turn and for that clear communication is the key. • Work towards the project goal till you are satisfied with the result. Technology Stack: • .NET, .NET Core, ASP.NET Core, Blazor, EF, Dapper and other ORMs • SQL Server, PostreSQL, MySQL • Kubernetes, Docker, AKS, EKS, Azure Service Bus, Redis, Azure DevOps, CI/CD

iTextSharp
Amazon EC2
Microsoft Azure
Cloud Architecture
Solution Architecture
JavaScript
Enterprise Software
Microservice
Kubernetes
C#
Azure DevOps
Docker
$20 hourly
Aqeel H.
- 4.9/5
- (95 jobs)
Hi, I’m Aqeel, and I run a team of expert developers, designers, and QA specialists dedicated to building high-quality, bug-free, and scalable software solutions. Why Choose Us? Software development is not just about writing code, it’s a complete process that requires expertise at every step: ✅ UI/UX & User Stories: Every great product starts with a clear vision and an intuitive design. ✅ Development: We specialize in both frontend and backend development using the latest technologies. ✅ QA & Testing: A stable, bug-free application is our priority. Our Expertise: UI/UX: Photoshop, Sketch, Figma Frontend: HTML, CSS, JavaScript, React, Next.js Backend: Python, Java, Node.js, Next.js, Django, Strapi, Electron.js Testing & QA: Ensuring your app runs smoothly before launch We believe in delivering high-quality work that meets your business goals while keeping development efficient and cost-effective. Let’s discuss your project and bring your ideas to life! 🚀

iTextSharp
Automation
Database Design
DevOps Engineering
ASP.NET MVC
.NET Core
Laravel
Python
ExpressJS
Next.js
React
Node.js
Web Application Development
Web Application
SaaS
SaaS Development
$55 hourly
Satheesh R.
- 4.9/5
- (128 jobs)
CKT has pioneered language technologies in India and have made great strides. With only 5% of the Indian population speaking English, the company saw the need to bridge this digital divide by empowering them with the technology that would be in their own familiar language . Since then, CKT has developed a full fledged Bilingual Office Suite containing Word Processor, Spreadsheet, Presentation Tool, EMail Client, Database, HTML Editor and Paint Program. Shakti Office presently supports Tamil, Hindi and Telugu languages. Shakti Office is being used in several banks, Central Government, State Government Departments, NGO's and Rural Kiosks. Besides Shakti Office, the company has developed Online Handwriting,TTS, Speech, and also worked in various projects. CKT is also part of the consortium of Premier Institutes like IIT Madras, IISc, Bangalore, IIIT Hyderabad and CDAC in developing Handwriting Technology for Indian languages.

iTextSharp
API
Inno Setup
UI Graphics
NSIS
Driver Development
System Deployment
Application Installer
Standalone Application
C
Microsoft Visual C++
C++
Desktop Application
Microsoft Visual Studio
C#
$15 hourly
Nichole Brian M.
- 5.0/5
- (44 jobs)
Very passionate and hardworking freelancer with a Bachelor's Degree in Computer Science. I am a dedicated, reliable full-time developer who writes good quality, clean, and robust code that is low maintenance and updates ready. With more than 5 years of experience and an ample number of projects to showcase my work, I will be glad to turn your ideas and drafts into a profitable high-tech gem. Areas of Expertise: ● ASP.NET, C#/CSharp, VB.NET, Xamarin, Java, MARS Assembly, DevExpress ● Android Studio, Eclipse, Unity Databases: ● SQLite, MySQL, MSSQL, Microsoft Access Social networks integration: ● Facebook, Instagram, Google Plus, WhatsApp, Pinterest, etc. Misc: ● Git, Slack, Discord Others: • Experience with Seach Engine Optimization • Experience in home-based jobs that require research, categorizing items, proofreading, and decision-making based on the standard operating procedures. • Ability to focus on the tasks given and meeting the deadlines • Excellent English communication Professional Summary : ● Strong experience in build an application from ideation to realization I have designed and developed a number of successful applications for clients from different industries including education, healthcare, real estate, entertainment, etc, and have maintained 100% customer satisfaction and repeat business by truly caring about my client's products, budget, and communication needs. My goal is to provide quality work with excellence and fast turn around time. To excel well as a virtual assistant, learn more new things, and build a better working relationship with my clients and even co-workers.

iTextSharp
ASP.NET
C#
WordPress
Xamarin
Database Administration
Unity
Data Mining
Google Docs
Android Studio
Search Engine Optimization
$150 hourly
Kalpna G.
- 4.8/5
- (12 jobs)
PKI Security products and solutions related Cryptography, PKCS#11, HSM, Smart Card, Multi-factor Authentication, OTP Authentication, Bio-metric authentication, Application Security, Encryption, Digital Signature, CSP, Credential Provider, solution conforming to NIST FIPS-140 level 2/3 certification, PIV, CAC, Entrust, Id-entrust, CMS solutions, MS Identity life cycle Manager, Minidriver, SSL and VPN integration, Various Identity access control and management solutions, PDF Signing on Mobile, Remote PDF signing, Personalization of NFC mifare Classic 1K and 4Ksmart card, Access authentications, Worked on solutions targeted for Desktop (Windows, Linux, Mac), Embedded Software, IOT Device solutions, Android Native Development, Cloud solutions, - Languages*:: C, C++, Java, QT, C# ,Python,Javascript, TypeScript - Operating System:: Windows, Android,vxWorks, Linux, Embedded Linux - Tools:: GCC, GDB,LLVM, LLD, Android Studio, Shell scripting, Eclipse, Visual Studio - Standards/ API:: PKCS # 11, #12 , MS CAPI, Credential Provider, TokenD, KeyChain APIs, ISO - 7816, Bluetooth / Bluetooth LE APIs, FIPS-140 level 2 & 3, KMIP specification, FIDO specifications, PCSC lite, EMV specification, Master/Visa, ANSI Standard for key exchanges, TR31 and TR34 Key blocks, PIN, PCI DSS, CCSS level 3, - OpenSource:: OpenSSL, OpenSSH, BouncyCastle (FIPS/Non-Fips) - Web Technologies:: NodeJS, Protobuffer, DJanfo, Angular, HTML, CSS, React.js, Next.js, XML, WS security - HSM: IBM CloudHSM, AWS-CloudHSM, Google Cloud HSM, Azure Cloud HSM, Thales DPoD, Thales Luna HSM, AWS-KMS, Payment HSMs, SafeNet CloudHSM, DPoD, SoftHSM, AWS Payment Cryptography, nShiled, CiperTrust, Utimaco, - Blockchain: Bitcoin and Ethereum signing with CloudHSM, BIP32 Signing, secp256k1 signing, Ethereum Signer with CloudHSM.

iTextSharp
OAuth
Windows API Development
Blockchain, NFT & Cryptocurrency
C++
Java
JavaScript
Reverse Engineering
NFC
C
Android
Python
Cryptography
Application Security
Encryption
Information Security
Linux
Elliptic Curve Cryptography
$30 hourly
Md. Mostafizur R.
- 5.0/5
- (16 jobs)
Full Stack Developer | Angular | React | Vue | Blazor | .NET Core | Node.js | TypeScript | JavaScript | AWS | Azure | SQL | NoSQL ⭐ Top Rated – Proven track record on Upwork ✅ 7+ Years Remote Experience with USA Clients ✅ 15+ Years in Software Development ✅ 70+ Projects Delivered ✅ 100% Job Success Score ✅ 13,000+ Upwork Hours Logged ✅ 100% Client Satisfaction ✅ Expert in Microservices, DDD, Agile & CI/CD As a versatile Full Stack Developer, I specialize in building robust, scalable, and modern web applications using Angular, React, Vue, Blazor, and backends powered by .NET Core and Node.js. I’m passionate about solving complex business challenges with clean, efficient, and maintainable code. I’ve led and delivered enterprise-grade systems. 🔧 My Technical Stack Includes: Frontend: ★ Angular (2–17), React.js, Next.js, Vue.js 3, Blazor ★ NgRx, Redux, Vuex, Tailwind, Bootstrap, Material UI ★HTML5, SCSS, CSS3, TypeScript, JavaScript Backend & API: ★ ASP.NET Core (5-9), C# (.NET MVC, Web API) ★ Node.js, Express.js, NestJS ★ RESTful APIs, GraphQL (Apollo, graphql-ws), SignalR Databases: ★ SQL Server, MySQL, PostgreSQL, Oracle ★MongoDB, DynamoDB, CouchDB Reporting: ★ iTextSharp, RDLC, Crystal ★Telerik Reporting - .NET Reporting for ASP.NET Core, Angular, React ★ Agular + RDLC / iTextSharp + .NET core Cloud & DevOps: ★ AWS (Lambda, SQS, SNS, Kinesis, Amplify) ★ Azure DevOps, Docker, Kubernetes ★ GitHub Actions, Jenkins, CI/CD Pipelines Testing & QA: ★ Cypress, xUnit, MSTest, Mocha, Jest ★ Test Automation, BDD, Cucumber with Gherkin Project Tools: ★ Figma, Jira, Slack, Trello, Notion 🚀 Why Work With Me? ✅ 7+ years of hands-on remote experience with US-based clients ✅ Deep understanding of business goals, not just code ✅ Capable of leading teams, mentoring juniors, and owning full-stack delivery ✅ Fast bug fixing, code refactoring, and performance optimization ✅ Clear and responsive communication with excellent documentation habits 🔍 Industries I’ve Worked In: ✦FinTech & Leasing ✦EdTech & eLearning ✦Health & Fitness ✦E-Commerce & Delivery ✦Real Estate ✦Beauty & Wellness (Salon, Spa) ✦Audio Streaming & Content Platforms Let’s collaborate to turn your ideas into real, working products that scale. Whether it’s building something from scratch or improving an existing system — I’m here to help. 📩 Let’s connect and discuss your project!

iTextSharp
Angular 6
ASP.NET Web API
CSS 3
Mobile Angular UI
CI/CD Platform
CI/CD
Blazor
Infragistics
Telerik
SAP Crystal Reports
TypeScript
PostgreSQL
MySQL
SQL
ASP.NET
.NET Core
Node.js
Next.js
React
Angular Material
Angular
$30 hourly
Praveen P.
- 5.0/5
- (10 jobs)
C#, .Net, AWS, SQL and Javascript developer with 10 years of experience. Extensively worked on ASP.Net, MVC, MS-SQL Server, WCF, React JS, WebAPI, JavaScript, AWS, Lambda, KnockoutJS, and Bitbucket/ Github. I am a quick learner, good team player with good analytical skills. Fluent in English and good communication skills. Happy to join an existing team/ agency as a full-time/part-time developer.

iTextSharp
SOAP
.NET Core
Microsoft SQL Server Programming
AWS Lambda
ASP.NET MVC
JSON
XML
RESTful API
React
JavaScript
ASP.NET Web API
API
C#
Windows Communication Foundation
ASP.NET
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Last updated: Apr 28, 2025

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