• Also known as Windows and macOS App Developer Expert • 5+ years of experience • I work on backend, frontend, databases, and Linux server administration • Main stack: .NET (C# / Visual Basic) and TypeScript / JavaScript • I build web and multi-platform desktop/mobile applications 📚 Technologies • My main tech stack is .NET (C# or Visual Basic .NET) and TypeScript / JavaScript • For .NET, I work with ASP .NET, Blazor, WPF, Windows Forms, MAUI (formerly Xamarin), Avalonia UI, and more • For TypeScript / JavaScript, I prefer React, but I can also work with Angular, jQuery, or vanilla JS • I can also develop macOS and iOS apps using Swift and Objective-C 🗼 Server Administration and DevOps • Familiar with Debian-based Linux distributions like Ubuntu • Able to handle VPS baremetal or Docker-based setups • Able to automate workflows using Bash, Python, GitHub Actions, and similar tools • Experienced with cloud services such as AWS and Azure 📊 Database • Microsoft SQL Server • MySQL / MariaDB • SQLite • PostgreSQL • Microsoft Access 💡 Skills • Strong in algorithm design and analysis • Great ability to solve programming and system trouble • Great at optimizing software performance • Flexible work style • Adaptive team player 📖 Self-Update • I regularly study new technologies to stay up to date. 🕰️ Flexible Availability • Open to collaborate across multiple time zones (US, CA, UK, EU, APAC, etc.) ✅ I’m not a robot. • I’m a real human and a solo freelancer, not an agency 🙌 Let’s Connect! • My name is Junian and I’d love to help bring your ideas to life • Feel free to reach out so we can discuss how I can support your project • Not a Vibe Coder, but use AI-Assisted Programming tools to solve problems • Linus Torvalds once said, “Talk is cheap. Show me the code.” So go ahead and check out my GitHub code. 🛠️ Common Tasks and Roles • Known as the Apple / macOS / iPhone guy • Build Windows app with .NET Framework & Windows Forms (WinForms) / Windows Presentation Foundation (WPF) / WinUI / Avalonia UI / MAUI / Xamarin • Build Windows Installer MSI / EXE from existing Windows App by using Wix / WixSharp • Build macOS app with Swift UI or .NET & Avalonia UI / MAUI / Xamarin • Build, sign, and notarize macOS app installer (PKG / DMG / ZIP) • Build web app with ASP .NET & Blazor / React / Angular / Vanilla JavaScript • Deploy and configure existing web apps by using Docker container to VPS / Cloud providers like AWS, Azure, or GCP • Ethical decompile / reverse engineer / source code retrieval / deobfuscation of existing .NET EXE / DLL / MSI or NinjaTrader Trading Indicator / strategy • Automate Windows UI tasks • Web scraping to retrieve online data / PDF / Images / any other files • Expert macOS system and app troubleshooting 🙋‍♂️ What I'm not • I'm not a Vibe Coder. Don't get me wrong, I use AI to build software, but I don't solely rely on it.

As a freelance developer, I am a specialist in Microsoft Office applications with over 25 years of experience including macro coding with VBA (Visual Basic for Applications). I am also skilled in database design and development with Microsoft Access or SQL Server, and I have very recent experience with Google sheets data management and scripting with Apps Script. Working independently or with your team, I can help you with tasks such as Access database design and development or maintenance, Microsoft Office and Google scripting and automation, creating or modifying spreadsheets with formulas and formatting, and Microsoft Word document organization, formatting and scripting. I can perform conversions such as PDF to Excel with Python and web scraping using Python and libraries such as Beautiful Soup. I am a skilled technical writer and will fully document the work I do, including user instructions, when required. My project portfolio below includes three Access database projects, a Google Sheets project with scripting, two projects with automation for both Excel and Word, two additional Excel and another Word automation project, an Excel design project, an XML conversion project, and a web scraping project. My extensive IT experience includes .NET software development for Windows servers and desktops and SQL databases. In my most recent full time position, I designed and developed an application using OCR to locate key information such as party names on printed real estate and other legal documents handled by city and county clerks. Now in use by many customers, the application facilitates automatic verification of the names submitted electronically with the documents or keyed by a data entry person. The development language was C# and the database is SQL Server running as a service under Windows. The code reads XML output from an OCR process and uses extensive regular expression coding to locate information and format it for database storage. A project in my portfolio below includes automation with Excel of the regression testing for this application. I have developed WPF/XAML desktop applications with C# and with WinForms using C# and VB. I also have developed web applications using JavaScript, AJAX, HTML and CSS with backend database access to SQL server coded using C#. I developed one application with React, a copy of the popular Wordle game, using an external API. Throughout my career I have leaned and applied skills such as software architecture, object oriented design and development, database design, technical writing, and problem solving. If you hire me for your project, I promise that I will always pay close attention to the details and accuracy to make sure that the result meets your requirements. Before starting a project, I will listen or read carefully to make sure I understand those requirements, and my written and spoken communication with you will be in clear and precise English. My hourly rate quoted in this profile is negotiable. If my skills are a match for your needs please send me an invitation and I will respond right away.

I'm a self-driven Software Engineer and Data Consultant specializing in Microsoft Fabric, Data Engineering, API Integration, and AI-powered automation. I design and build scalable, cloud-based solutions that streamline business processes, automate workflows, and transform data into actionable insights. With experience delivering enterprise solutions across multiple client environments, I leverage modern Microsoft technologies to build reliable, maintainable, and production-ready systems that create measurable business value. Core Expertise Microsoft Fabric (Data Factory, Lakehouse, Warehouse, Data Pipelines, Dataflows Gen2, Semantic Models) Data Engineering & ETL/ELT (Microsoft Fabric, SQL Server, process automation, data pipelines) Power BI & Business Intelligence (Dashboards, Reporting, Semantic Models, SSRS) API Integration & Enterprise System Connectivity (REST APIs, JSON, OAuth) AI Automation & Workflow Optimization Python Automation & Data Processing Microsoft SQL Server (T-SQL) and Oracle PL/SQL Power Automate & Business Process Automation C#, VB.NET & Enterprise Application Development Azure Cloud Services, GitHub, GitLab & CI/CD Infrastructure, Windows Servers & Virtual Machines IT Systems Administration, Troubleshooting & Technical Support Basic Cybersecurity & Identity Management Oracle APEX Development Hexagon Software Programming & Administration

I’m a licensed NinjaTrader vendor and C# developer with hands-on experience building custom solutions for NinjaTrader 8 — automated strategies, trade management tools, indicators, and add-ons for both desktop and web terminals. Beyond NinjaTrader, I work across a broader stack: Python for data analysis and automation, Solidity for smart contracts and DeFi protocols, and AI/ML for intelligent trading systems and workflow automation. Whether you need a precision NinjaTrader tool, a DeFi integration, or an AI-powered trading bot — I bring both the technical depth and real market understanding to deliver solutions that work in live conditions. 📌 Some of my NinjaTrader work: advancedsoftwarefeatures .com If you’re looking for a developer who speaks both code and markets — let’s connect. Risk disclosure: Futures and forex trading contains substantial risk and is not for every investor. An investor could potentially lose all or more than the initial investment. Risk capital is money that can be lost without jeopardizing ones’ financial security or life style. Only risk capital should be used for trading and only those with sufficient risk capital should consider trading. Past performance is not necessarily indicative of future results. Hypothetical performance disclosure: Hypothetical performance results have many inherent limitations, some of which are described below. no representation is being made that any account will or is likely to achieve profits or losses similar to those shown; in fact, there are frequently sharp differences between hypothetical performance results and the actual results subsequently achieved by any particular trading program. One of the limitations of hypothetical performance results is that they are generally prepared with the benefit of hindsight. In addition, hypothetical trading does not involve financial risk, and no hypothetical trading record can completely account for the impact of financial risk of actual trading. for example, the ability to withstand losses or to adhere to a particular trading program in spite of trading losses are material points which can also adversely affect actual trading results. There are numerous other factors related to the markets in general or to the implementation of any specific trading program which cannot be fully accounted for in the preparation of hypothetical performance results and all which can adversely affect trading results. Testimonials: Testimonials appearing on this website may not be representative of other clients or customers and is not a guarantee of future performance or success.

I’m a Senior Full-Stack Developer with 10+ years of experience specializing in Microsoft Office Add-ins for Outlook, Excel, Word, and PowerPoint. I design and build secure, scalable, enterprise-grade Office 365 add-ins using Office.js and VSTO, supporting Web, Windows, and Mac environments. My focus is clean architecture, high performance, and long-term maintainability — not quick hacks. I’ve helped businesses automate workflows, integrate Microsoft Graph, apply AI inside Office apps, and successfully publish add-ins to the Microsoft AppSource / Add-in Store. 🔹 Office Add-ins Architecture & Development • Task Pane Add-ins, Custom Ribbon, Custom Functions • Manifest configuration (XML / JSON) • Office.js & VSTO development • Cross-platform compatibility (Web, Windows, Mac) 🔹 Authentication, Security & Performance • Single Sign-On (SSO) with Microsoft Identity Platform • Azure AD / Entra ID, OAuth 2.0, Secure API integration • Performance optimization (fast load times & responsive UI) 🛠️ Backend, DevOps & Tech Stack • Frontend: React, TypeScript, Next.js • Office Tech: Office.js, VSTO, Microsoft Graph • Backend: Node.js, ASP.NET Core, REST & Graph APIs • AI Integration: OpenAI / GPT-powered features inside Office Add-ins • Databases: SQL Server, MongoDB, Supabase, efficient schema design & indexing • DevOps & Cloud: CI/CD pipelines, Docker containers, Azure & AWS deployments, monitoring & scalable infrastructure Why Clients Choose Me ✔ Deep specialization in Office 365 & Office Add-ins ✔ Enterprise-ready architecture & security ✔ Proven experience with AppSource / Add-in Store publishing ✔ Clear communication & long-term support mindset I deliver production-ready Microsoft Office solutions from idea to deployment.

⚡ Tired of manual work? Let AI, Automation, Data Analysis & Visualization do it for you⚡ 🏆 Proof of Work ✨ 230+ Projects Delivered I🏅 Top 10% Talent on Upwork I🤝 Consistent Client Satisfaction 💼 What I Deliver ⚙️ AUTOMATION → Automating repetitive tasks into seamless, time-saving workflows. 📊 DATA ANALYSIS → Converting complex data into meaningful, decision-ready insights. 🤖 AI CHATBOTS → Building smart chatbots to engage users and automate operations 24/7. 📈 DATA VISUALIZATION → Crafting clean, interactive dashboards that make data easy to act on.

Reliable .NET Full Stack Developer for Scalable Web Solutions I’m a .NET Full Stack Developer who delivers production-ready features on time, keeps development cost-efficient, and builds scalable web solutions that grow with your business. As a Senior .NET Full Stack Developer, I design and develop secure, high-performance applications using .NET and Angular, focusing on clean architecture, scalability, and long-term maintainability. I’m a .NET Developer who aligns technical decisions with business goals. Every solution I deliver as a .NET Full Stack Developer is production-ready, reliable, and built for real users. Experience & Credentials Certified Senior .NET Full Stack Developer 8+ years of commercial experience as a .NET Developer and Tech Lead 30+ completed projects on Upwork 100+ delivered projects with my Intelvision team (last 5 years) 100% Job Success | 1900+ hours | $100K+ earned Trusted .NET Developer for Visoplan, ING+, Jincom, Kiflo, and more When clients need a reliable .NET Full Stack Developer, they come back. Core Role: .NET Full Stack Developer As a .NET Full Stack Developer, I handle frontend, backend, APIs, databases, cloud infrastructure, and DevOps. As a .NET Developer, I ensure security, performance, and scalability from day one. I work as: .NET Full Stack Developer for SaaS platforms .NET Full Stack Developer for enterprise systems .NET Full Stack Developer for MVP and startup products .NET Developer for long-term system growth Core Technologies (.NET Full Stack) .NET Full Stack .NET Developer (ASP NET Core, Web API, SignalR) Angular (enterprise SPA, NgRx, RxJS) Node.js (for hybrid architectures when needed) Every project is led by a .NET Full Stack Developer, not a generalist. Backend & Architecture (.NET Developer Expertise) As a .NET Developer, I build backend systems using: RabbitMQ, Docker, Kubernetes, Redis, GraphQL, SignalR, Elasticsearch, Hangfire, MediatR, Quartz NET, Akka NET, Autofac, Dapper, NHibernate, Swagger, FluentValidation, Serilog, NLog This is what separates a .NET Full Stack Developer from a basic coder. Frontend Development (Angular) As a .NET Full Stack Developer, I pair backend power with modern UI development: Angular, TypeScript, SPA, PWA, NgRx, RxJS, Angular Universal, NG-ZORRO, Tailwind CSS, MUI, Ant Design, Lighthouse optimization A strong .NET Developer always delivers a strong frontend. Cloud, DevOps & CI/CD (.NET Full Stack) Azure, AWS, Docker, Kubernetes, GitHub Actions, GitLab CI, Azure DevOps A real .NET Full Stack Developer owns deployment, scaling, and monitoring. Security & Authentication (.NET Developer Focus) Auth0, IdentityServer4, Azure AD B2C, OAuth 2.0, JWT, Azure Key Vault, AWS IAM Security is mandatory for any .NET Full Stack Developer. Business & API Integrations Stripe, Xero, QuickBooks, Microsoft Graph API, Salesforce, SAP, Dynamics As a .NET Developer, I build systems that integrate with real business tools. Testing & Quality xUnit, NUnit, Moq, MSTest, Karma, Jest A professional .NET Full Stack Developer ships tested code. Industry Experience as .NET Full Stack Developer SaaS platforms FinTech systems PropTech and ConTech Logistics and supply chain Custom enterprise solutions Each domain was delivered by a .NET Full Stack Developer with real production experience. Why Clients Choose Me as a .NET Full Stack Developer Deep backend expertise as a .NET Developer Strong Angular frontend delivery Clean architecture and scalability Business-oriented mindset Long-term partnership approach Whether you need an MVP, SaaS, PoC, or enterprise system, you need a .NET Full Stack Developer, not just a coder. Let’s Build Your Product If you’re looking for a reliable .NET Full Stack Developer, an experienced .NET Developer, and a partner who delivers on time, let’s talk. Your product deserves a .NET Full Stack Developer who understands scale, security, and growth.

As a dedicated individual developer, I specialize in creating high-quality, solution-driven software applications, drivers, and installers for Windows, Mac, Linux, and mobile platforms. Here are my specializations: Development: 🔹Microsoft Windows: 1. Windows GUI apps in C# .NET (WinForms, WPF, .NET 6.0/7.0, UWP), C++ (MFC, QT) 2. WiX Toolset, InstallShield, InnoSetup for Windows installers (msi and exe) 3. Windows Kernel and User mode drivers (KMDF, UMDF) 4. API libraries (REST, IPC, Web Sockets) 5. USB HID device, serial port (USB virtual serial port and RS232) applications and drivers 🔹Apple Mac: 1. MAC GUI apps (Objective-C, Swift) 2. MAC Package Installers, launch daemons, dylibs and scripts 3. System Extensions, Driver Kit drivers 4. Code signing, notarization 🔹Linux: 1. GUI apps in C++ (QT Creator) 2. Installers for applications and video and audio plug-ins using Makeself 🔹Mobile Apps: 1. iOS apps (Native apps in Objective-C, Swift using XCode, Cross Platform app in Visual Studio .Net Maui) 2. Android apps (Native apps in Android Studio) 🔹Cross Platform: 1. Java apps (Swing Forms/Applets, JNI) 2. Web apps (HTML, JavaScript) 3. .NET Maui, Mono, Electron Desktop apps 4. QT C++, CMake build, Conan package manager 5. Python GUI app with PyQt, Python app packaging with Pyinstaller 6. Chrome Web Apps (WebUSB, WebSerial, WebHID, WebMIDI) 🔹Development tools: 1. Visual Studio 2022 Community Edition 2. Windows 11 WDK 3. XCode for MAC 4. QT for Windows, MAC, Linux 5. InstallShield 2020 Pro Edition 6. WiX Toolset v3 and v4 7. Visual Studio Code 8. Git for version control, CI/CD pipelines. 9. USB port sniffer tools: SysNucleus USBTrace, HHD USB Monitor 🔹 Deployment: 1. JAMF and Mosyle - Deployment of Mac & iOS apps and custom configuration profiles, Apple Business Manager integration. 2. Microsoft Intune - LOB app deployment to Enterprise Windows PCs, Apple Mac and iOS devices. 🔹Notable projects: 1. Virtual Camera Driver (Win & Mac) 2. Virtual Serial Port Driver (Win) 3. API libraries for getting presence and call information from UC apps such as Microsoft Teams, RingCentral, Slack, Zoom, Bria, Cisco Jabber, Cisco WebEx, Genesys Cloud 4. USB Access Manager (Win & Mac) 5. HID mini driver for UPS Battery 🔹Reverse Engineering: Familiar in reverse engineering USB HID devices to identify its HID descriptors and Communication Protocol.

I am a UK-based Senior Accountant and part-owner of a CIMA-regulated practice based in Bristol, providing compliant, commercially focused accounting and tax services to a portfolio of ~120 clients. Our practice delivers a full-service offering, including bookkeeping, VAT, payroll, statutory accounts, and tax optimisation (including capital allowances and allowable expense planning). We are Xero Advisor Certified and have over a decade of hands-on experience supporting owner-managed businesses across a range of sectors. What differentiates my work is the combination of regulated accountancy with advanced financial modelling and automation expertise. Since 2005, I have specialised in building automated financial models, reporting systems, and process-driven solutions using Excel/VBA, SQL, Python, and Google Apps Script. This allows us to go beyond standard compliance work—helping clients improve reporting speed, reduce manual errors, and make better financial decisions. I also lead on higher-value engagements including: - R&D Tax Credit claims - SEIS/EIS fundraising support - Bespoke financial forecasting and modelling In 2009, I developed an ICAEW-accredited financial forecasting platform designed to rapidly build integrated financial models. This reflects my broader approach: combining technical capability with accounting expertise to deliver solutions that are both compliant and commercially effective. Alongside practice work, I continue to support clients with bespoke modelling and automation projects across sectors, including construction & property, healthcare, FMCG, and financial services. I maintain a consistently high client satisfaction record by focusing on practical delivery, responsiveness, and long-term usability, ensuring clients receive support that extends beyond year-end compliance. I aim to ensure every client receives 5-star treatment, from project conception through to post-delivery support.

My name is Fabio Silva, I am married and I work with programming for about 27 years. I love creating new interesting programs! * My strong points: - I am an expert in C# and .Net, but I can adapt myself very easily and quickly to any different language and technology. I have strong experience in migrating older systems, databases, and legacy languages to modern alternatives. - I am experienced in Code Reviews, especially for C# and Javascript. - I have great experience in finding and troubleshooting hard bugs, even with limited data and information, and even with hard access environments. - Due to my experience, I usually provide a great range of creative solutions and alternatives to the most diverse problems. * My current specialization: - My focus is C# and .Net Core, in any area where it can be leveraged. - On the web, I work on Asp.Net Core using Microservices, Razor Pages, MVC, and WebApi, and some quick tasks with Blazor. In the front end, I work with Plain Javascript and React, KnockoutJS, with some experience in Angular. - On the desktop, I'm good at creating Console, Windows Forms, WPF, and Avalonia apps. - I work mostly with Microsoft SQL Server, PostgreSQL, and SQLite databases. - I work with Git daily as shared source control, with experiences in GitHub and BitBucket. - Finally, I can do cross-platform development (Linux/Windows/macOS). And in any case, I can deploy to docker containers. * Other talents: - Languages like Basic, Clipper, Visual Basic (and VB.Net), Borland Delphi - Databases like MySql, Interbase/Firebird - Other like PowerShell Scripts, Selenium WebDriver